1
CSM_K3GN_DS_E_3_1
1/32 DIN Digital Panel Meter
K3GN
1/32 DIN Digital Panel Meter for Downsizing
Equipment and Control Panels
• Compact size: 48 x 24 x 83 (W x H x D).
• Multi-input compatible: DC voltage/current, rotary pulse.
• Two display colors (switchable): green/red.
• Selectable outputs.
• CE marking and UL/CSA approval.
• Splash-proof construction (NEMA4X: equivalent to IP66).
Refer to Safety Precautions for All Digital Panel
Meters.
Model Number Structure
■Model Number Legend
1. Input Type
ND: DC voltage/current, NPN
PD: DC voltage/current, PNP
2. Output Type
C: 2 relay contact outputs (SPST-NO)
C-FLK: 2 relay contact outputs (SPST-NO) and RS-485
C-L1: 2 relay contact outputs (SPST-NO) and DC current (0 to 20 mA, 4 to 20 mA)
C-L2: 2 relay contact outputs (SPST-NO) and DC voltage (0 to 5 V, 1 to 5 V, 0 to 10 V)
T1: 3 transistor outputs (NPN open collector)
T1-FLK: 3 transistor outputs (NPN open collector) and RS-485
T1-L1: 3 transistor outputs (NPN open collector) and DC current (0 to 20 mA, 4 to 20 mA)
T1-L2: 3 transistor outputs (NPN open collector) and DC voltage (0 to 5 V, 1 to 5 V, 0 to 10 V)
T2: 3 transistor outputs (PNP open collector)
T2-FLK: 3 transistor outputs (PNP open collector) and RS-485
3. Option
None: None
-400: Normally energized relays
4. Supply Voltage
24 VDC: 24 VDC
12 43
K3GN-@@-@-@ 24 VDC
K3GN
2
Ordering Information
■List of Models
Note: Refer to page 5 for information on models with normally energized relays.
Specifications
■Ratings
Note: 1. A control power supply capacity greater than the rated capacity is required when the Digital Panel Meter is turned ON. Do not forget to
take this into consideration when using several Digital Panel Meters. When power is supplied, all indicators will light and outputs will be
OFF. When using startup compensation time operation, the display will read “00000” and all outputs will be OFF.
2. Enabled only when using DC voltage/current input. (Min.time for control signal input: 80 ms)
Supply
voltage
Input type Output type Model
Judgement output Data transmission output
24 VDC DC voltage, DC current,
or NPN input
2 relay contact outputs
(SPST-NO)
None K3GN-NDC 24 VDC
RS-485 K3GN-NDC-FLK 24 VDC
DC current (0 to 20 mA, 4 to 20 mA) K3GN-NDC-L1 24 VDC
DC voltage (0 to 5 V, 1 to 5 V, 0 to 10 V) K3GN-NDC-L2 24 VDC
2 relay contact outputs
(SPST-NO)
Normally energized
relays (See note.)
None K3GN-NDC-400 24 VDC
RS-485 K3GN-NDC-FLK-400 24 VDC
DC current (0 to 20 mA, 4 to 20 mA) K3GN-NDC-L1-400 24 VDC
DC voltage (0 to 5 V, 1 to 5 V, 0 to 10 V) K3GN-NDC-L2-400 24 VDC
3 transistor outputs (NPN
open collector)
None K3GN-NDT1 24 VDC
RS-485 K3GN-NDT1-FLK 24 VDC
DC current (0 to 20 mA, 4 to 20 mA) K3GN-NDT1-L1 24 VDC
DC voltage (0 to 5 V, 1 to 5 V, 0 to 10 V) K3GN-NDT1-L2 24 VDC
DC voltage, DC current,
or PNP input
2 relay contact outputs
(SPST-NO)
None K3GN-PDC 24 VDC
RS-485 K3GN-PDC-FLK 24 VDC
3 transistor outputs (PNP
open collector)
None K3GN-PDT2 24 VDC
RS-485 K3GN-PDT2-FLK 24 VDC
Item K3GN-ND
With DC voltage, DC current, and NPN input
K3GN-PD
With DC voltage, DC current, and PNP input
Supply voltage 24 VDC
Operating voltage range 85% to 110% of the rated supply voltage
Power consumption (at max. load) (See note 1.) 2.5 W max. (at max. DC load with all indicators lit)
Input signal DC voltage, DC current, no-voltage contact, open collector
DC voltage/current
input
A/D conversion Double integral method
Pulse signal input Pulse measurement
method
Periodic measurement method
External power supply None
Control input Present value hold or forced zero (selectable) (See note 2.)
Outputs
(Outputs depend on
the model.)
Relay contact output 1 A, 30 VDC (resistive load), mechanical life: 50,000,000 operations min., electrical life: 100,000
operations min.
Transistor output Max. load voltage: 24 VDC, Max. load current: 50 mA, Leakage current: 100 µ A max.
Communications output RS-485 (2-wire, half-duplex)
Linear output DC current (0 to 20 mA DC, 4 to 20 mA: Load:
500 Ω max., Resolution: Approx. 10,000)
DC voltage (0 to 5 VDC, 1 to 5 VDC, 0 to 10 VDC:
Load: 5k Ω min., Resolution: Approx. 10,000)
---
Display Negative LCD (backlit LCD) display
7-segment digital display, character height: 7.0 mm, and single illuminated display
Main functions Scaling, prescaling, teaching, average processing, forced zero, display color selection, output type
selection, key protection, startup compensation timer, hysteresis
Ambient temperature Operating: −10°C to 55°C (with no condensation or icing)
Storage: −25°C to 65°C (with no condensation or icing)
Ambient humidity Operating: 25% to 85%
Altitude 2,000 m max.
Accessories Rubber packing, fixture, operation manual
K3GN
3
■Characteristics
■Input Ranges: Measurement Range and Accuracy
Note: The shaded ranges indicate default settings.
Item K3GN-ND
With DC voltage, DC current, and NPN input
K3GN-PD
With DC voltage, DC current, and PNP input
Input signal DC voltage/current (4 to 20 mA, 1 to 5 V, ±5 V, ±10 V)
No-voltage contact (30 Hz max. with ON/OFF pulse width of 16 ms min.)
Open collector (5 kHz max. with ON/OFF pulse width of 90 µs min.)
Displayable range 5 digits (-19999 to 99999)
Sampling period 250 ms
Display refresh period Sampling period: 250 ms (at 4 Hz min.), 250 × Number of averaging times (ms) (with average processing selected),
Input pulse cycle (at less than 4 Hz): Input pulse cycle × Number of averaging times
Comparative output response
time
(transistor outputs)
750 ms max. (transistor output)
(The time required for the judgment output to be output if the input signal rapidly changes from 15% to 95% or from 95% to 15%.)
Linear output response time 750 ms max. (The time required for the analog output to be
output if the output signal rapidly changes from 15% to 95% or
from 95% to 15%.)
---
Insulation resistance 20 MΩ min. (at 500 VDC) between external terminal and case.
Insulation provided between inputs, outputs, and power supply.
Dielectric strength 1,000 VAC for 1 min between external terminal and case.
Noise immunity ±480 V on power supply terminals in normal mode, ±1,500 V in common mode, ±1 µs, or 100 ns for square-wave noise with 1 ns
Vibration resistance Vibration frequency: 10 to 55 Hz, Acceleration: 50 m/s2 for 10 min each in X, Y, and Z directions
Shock resistance Models with transistor outputs: 150 m/s2 three times each in 3 axes, 6 directions
Models with contact outputs: 100 m/s2 three times each in 3 axes, 6 directions
Weight Approx. 100 g (Main Unit only)
Degree of
protection
Front panel NEMA4X for indoor use (equivalent to IP66),
Rear case IP20
Terminals IP00 and finger protection (VDE0106/100)
Memory protection Non-volatile memory (EEPROM) (possible to rewrite 100,000 times)
Approved standards UL508, CSA C22.2 No. 142
EMC (EMI) EN 61326 Industry
Emission Enclosure: EN55011 Group 1 class A
(EMS) EN 61326 Industry
Immunity ESD: EN 61000-4-2: 4 kV (contact discharge)
8 kV (air discharge)
Immunity RF-interference: EN 61000-4-3: 10 V/m (amplitude-modulated,
80 MHz to 1 GHz)
Immunity Fast Transient Noise: EN 61000-4-4: 2 kV (power line)
Immunity Burst Noise: 1 kV line to line (I/O signal line)
Immunity Surge: EN 61000-4-5: 2 kV line to ground (power line)
Immunity Conducted Disturbance EN 61000-4-6: 3 V (0.15 to 80 MHz)
Immunity Power Frequency Magnetic EN 61000-4-8: 30 A/m (50 Hz) continuous time
Input type
in-t
Analog
analg
Pulse
pulse
Remote
rmt
DC
current
input
DC voltage input Rotary pulse
Analog
range
range
4 to 20
mA
4-20
Analog
range
range
1 to 5 V
1-5
±5 V
5
±10 V
10
Pulse
frequency
p-fre
30 Hz
30
5 kHz
5k
Range of display
from :9999 to
99999 using
communications.
Connection
terminal
E-FConnection
terminal
D-EConnection
terminal
B-C
Input
impedance
60 ΩInput
impedance
1 MΩ min. --- ---
Measurement
accuracy
±0.1% full scale ± one digit max. (at
23±3°C)
±0.1% full scale ± one
digit max. (at 23±5°C)
±0.1% full scale ± one digit max. (at
23±5°C)
---
Current range
(mA) 20.00
4.00
0.00
Voltage
range (V)10.00
5.000
0.000
−5.000
−10.00
Frequency
range
(Hz)
5000
4000
3000
2000
1000
0.0
5.500
0.000
5.500
−5.500
22.00
0.00
11.00
−11.00
30.00
0.05
5000
0.05
K3GN
4
■Input/Output Ratings
Relay Contact Output
(Incorporating G6K Relays)
Transistor Output
Communications Specifications
Linear Output
Item Resistive load (cosφ = 1)
Rated load 1 A at 30 VDC
Rated through current 1 A max. (at COM terminal)
Max. contact voltage 60 VDC
Max. contact current 1 A (at COM terminal)
Max. switching capacity 30 VA
Min. permissible load
(P level, reference value)
10 mV, 10 µA
Mechanical life 50,000,000 operations min. (at a
switching frequency of 36,000
operations/hr)
Electrical life
(at an ambient
temperature of 23°C)
100,000 operations min. (at the rated
load with a switching frequency of
1,800 operations/hr)
Rated load voltage 24 VDC
Max. load current 50 mA
Leakage current 100 µA max.
Item RS-485
Communications method 2-wire, half-duplex
Synchronization method Start-stop synchronization
Baud rate 1,200/2,400/4,800/9,600/19,200 bps
Transmission code ASCII
Commu-
nications
Reading/
Writing to the
K3GN
Read/write comparative set values,
read/write scaling values, enable/
disable the writing of data through
communications, forced-zero control,
and other data.
Item 0 to
20 mA
4 to
20 mA
0 to 5 V 1 to 5 V 0 to
10 V
Permissible load
impedance
500 Ω max. 5 kΩ min.
Resolution Approx. 10,000
Output error ±0.5% full scale ±0.5 full scale.
±0.15 V at 1 V or less (no
output for 0 or less)
K3GN
5
Nomenclature
Name Functions
1. Main display Displays process values, parameters, and set values.
2. Status indicators OUT1 Lit when output 1 is ON.
OUT2 Lit when output 2 is ON.
SV Lit when a set value is being displayed or changed.
TLit when the teaching function is enabled. Flashes when the K3GN is in teaching operation.
Lit when a calibration value is being displayed during user calibration. Flashes while reading a calibra-
tion value.
ZERO Lit while the forced-zero function is activated.
HOLD Lit when HOLD input is ON.
CMW Lit when communications writing is “enabled” and is out when it is “disabled.”
3. Level indicator Displays the current level that the K3GN is in. (See below for details.)
4. Level Key Used to change the level.
5. Mode Key Used to allow the Main display to indicate parameters sequentially.
6. Shift Key Used to enable that set value to be changed. When changing a set value, this key is used to move
along the digits.
7. Up/Zero Key Used to change a set value. Used to set or clear a forced-zero function when a measurement value is
being displayed.
1. Main display
2. Status indicators
3. Level indicator
4. Level key
2. Status indicators
7. Up/Zero key6. Shift key5. Mode key
Level indicator Level
pProtect
Not lit Operation
aAdjustment
sInitial setting
cCommunications setting
fAdvanced function setting
uUser calibration
Models with Normally Energized Relays
K3GN-NDC-@-400 24 VDC
•The drive operation for the output relay is reversed in these models.
•Relay contacts can be made open (i.e., OFF) when comparative set
values are being judged. This is effective when constructing systems
that take failsafe measures into consideration.
List of Models
Models with Normally Energized Relays
K3GN-NDC-400 24 VDC
K3GN-NDC-FLK-400 24 VDC
K3GN-NDC-L1-400 24 VDC
K3GN-NDC-L2-400 24 VDC
Relation between Output Type and Relay
Output Operation
Hysteresis
Set value
Measurement
value
OutputON
OFF
Hysteresis
Upper-limit
set value
Lower-limit
set value
Measurement
value
OutputON
OFF
Hysteresis
Hysteresis
Set value
Measurement
value
OutputON
OFF
Upper limit
Lower limit
Upper and lower limits
Note: If Upper/Lower Limit is selected, the
upper limit and lower limit for the com-
parative set value can be set individu-
ally and will be displayed for OUT1 and
OUT2.
K3GN
6
Connections
■Terminal Arrangement
Terminal No. Name Description
A-BOperation power Connect the operation power supply.
C-BEvent input or pulse/contact input Operates as follows depending on parameter
setting:
•Holds process value.
•Calibrate the process value to zero and clear
the forced-zero function.
•Pulse or contact input.
C-A
D,F-EAnalog input Connect the voltage or current analog input.
G-HCommunications RS-485 communications terminals.
Linear output 0 to 20 mA DC, 4 to 20 mA DC
0 to 5 VDC, 1 to 5 VDC, 0 to 10 VDC
I,K-LOutputs Outputs relay or transistor outputs. There is
also a PASS output for models with transistor
outputs.
I,J,K-L
B (+) A (−)
78
78
C
12 3
123
A
9101112
9101112
9101112
D
456
B
CD
AB
78 9101112
123 456
Output terminals
Input terminals
NC NC
RS-485
Models with NPN inputsModels with PNP inputs
OUT1
PA S S
NC
OUT2
COM
OUT1
OUT2
COM
OUT1 PASS OUT2 COM
Voltage Current
Analog input
COM
Event or pulse/contact input
Event or pulse/contact input
Analog input
Models without
communications
Models with
communications
Operation
power supply
24 VDC
Operation
power supply
24 VDC
Models with
PNP transistor outputs
Models with
NPN transistor outputs
Models with
relay outputs
(+) (−)
78
Models with
linear output
K3GN
7
■Block Diagram
■Input Circuits
Analog Input (DC Voltage/Current)
Use terminal 5 for analog common.
Comparative Output
Contact Output
Transistor Output
Pulse Input/ Event Input (HOLD/ZERO)
•If analog input is selected, 2 and 3 will be the event inputs.
Select Hold/Zero with event input allocation.
•Use terminal 2 for the common terminal.
•Use the NPN open collector or the no-voltage contacts for the
control input.
NPN Input
PNP Input
DisplayKey
Drive circuit
Drive circuit
Drive circuit
Constant voltage circuit 1
Power supply circuit
Input circuit
Operating power supply
Constant voltage circuit 2
EEPROM
Analog input
terminal
Pulse/
Control
input
terminal
Control input
circuit
A/D
conversion
circuit
Waveform
rectification
circuit
Micro-
computer
Note: 1. Transistor output models only.
2. Linear output models only.
3. Relay output models only.
4. Models with communications functions only.
Communica-
tions driver
Transistor output
(See note 1.)
Contact output
(See note 3.)
Communications terminal
(See note 4.)
X
Linear output
(See note 2.)
Output
circuit
Output
circuit
Drive circuit
Voltage
input
COM
To A/D
−
+Current
input
COM
To A/D
−
+
6
5
4
5
X
5 V
OUT1
OUT2
9
10
11
12
8.2 Ω
8.2 Ω
8.2 Ω
OUT1
OUT2
PA S S
COM 9
10
11
12
8.2 Ω
8.2 Ω
8.2 Ω
OUT1
OUT2
PASS
COM
NPN Output PNP Output
1
2
3
2.35 kΩ
4.7 kΩ
24 VDC
24 V
3
4.7 kΩ
2.35 kΩ
2
24 VDC +
24 VDC −
1
Hold/Zero Pulse
K3GN
8
Linear Output
Note: The commons for linear output and transistor output on models
with L1 and L2 are connected internally.
Depending on how the common is wired for externally
connected devices, unwanted current paths for the linear
output signal in the circuit may prevent the output signal from
being output.
When connecting an external device, externally connect a relay
to the transistor output or provide another means of insulation.
−
+
7
+
−
5 kΩ
min. 8
L
−
+
7
+
−
500 Ω
max.
Linear voltage output Linear current output
8
L
K3GN
9
Operating Procedures
■Initial Setting Flowchart
Input Type
Note: The default value is analg: Analog input.
Analog Input Type
K3GN-ND@
Note: The default value is 4-20: 4 to 20 mA input range.
K3GN-NL@ (with Microvoltage Input)
Note: The default value is 199.9: ±199.9 mV input range.
Pulse Frequency
Note: The default value is 5k: 5 kHz input range.
Setting Scaling
Analog Input Signal
(Refer to page 10 if a pulse input is selected.)
•The scaling will be displayed on a line connecting two points by setting Display 1 for Input 1 and
Display 2 for Input 2.
The position of the decimal point can be set as desired. If the decimal point is to be displayed, it is
necessary to consider the number of digits to be displayed past the decimal point when setting the
scaling display value.
Note: When pulse input is used, the base point is the 0 point, so the settings are only the input
value and the display value.
Input type Parameter Function
Analog analg Selects the DC voltage/current signal input.
Pulse pulse Selects the pulse input signal.
Remote rmt Displays the communications remote data from the
Programmable Controller.
Input specification Parameter Setting range
4 to 20 mA 4-20 Values from −19999 to 99999 can be displayed with scaling.
The position of the decimal point can be set as desired.
1 to 5 V 1-5
±5 V 5
±10 V 10
Input specification Parameter Setting range
±199.9 mV 199.9 Values from −19999 to 99999 can be displayed with scaling.
The position of the decimal point can be set as desired.
±19.99 mV 19.99
Input specification Parameter Setting range
0.05 Hz to 30.00 Hz 30 Values from −19999 to 99999 can be displayed with scaling.
The position of the decimal point can be set as desired.
0 Hz to 5 kHz 5k
Instead of setting by inputting with the Shift Key and Up Key, current measurement values van be
input as scaling input values for teaching. This is useful for making settings while checking the
operation status of the K3GN.
For details on the operating procedures, refer to the K3GN Digital Panel Meter Manual (Cat. No.
N102).
Input value
Displayed
value
Input value
Displayed
value
Input 1 Input 2
Display 1
Display 2
Input 1
Input 2
Display 1
Display 2
Power ON
Operation
Press the Level Key for 3 s
min. to move to the initial
setting level.
Select the input type and
analog type (or pulse
frequency).
Set the scaling value and
output type if required.
Press the Level Key for 1 s min.
to return to the operation level.
Set the values for OUT1 and OUT2.
If required, move to the advanced
setting level and set parameters,
such as the average processing,
event input assignment,
hysteresis value, auto-zero time,
startup compensation time, and
display color change.
For models with communications,
press the Level Key for less than
1 s to move to the
communications setting level.
Set the communications
specification and press the Level
Key for less than 1 s to move to
the initial setting level.
K3GN
10
•If the K3GN is used with a pulse signal input, the display value will be the input frequency if scaling is not performed.
Display the rate of rotation or the speed of a device or machine to which the K3GN is mounted by converting using scaling.
The relation between input f (Hz) and display D is expressed in the form D = f x a (factor). The value depends on the display unit. The formula
will be comprised as follows:
Display using rpm: D = f x 1/N x 60, N = Number of pulses per rotation, f = Input pulse frequency (Hz) (i.e., number of pulses in one second)
Display using m/min: D = f x π d x 1/N x 60, π d = Circumference length (m) per rotation
Output 1 Type
Note: The default value is hi: Upper limit.
Prescaling Example
To display the rotational speed of a device that outputs five pulses
per rotation:
D = f × 1/5 × 60, and,
If f=1,
D = 12, so
The setting will be completed by inputting inp:1 and dsp:12.
Output 2 Type
Note: The default setting is lo: Lower limit.
The output operations can be selected separately for OUT1 and OUT2.
Output
type
Parameter Function
Upper limit hi Output turns ON if the
measurement value ≥ comparative
set value 1.
Lower limit lo Output turns ON if the
measurement value ≤ comparative
set value 1.
Upper and
lower
limits
hi-lo The comparative upper-limit set
value and comparative lower-limit
set value can be set separately and
expressed high and low.
Output turns ON if the
measurement value ≥ comparative
upper-limit set value 1 or if the
measurement value is ≤
comparative lower-limit set value 1.
Input value f (Hz)
0
0
Display value D
Input value
Display value
Output
type
Parameter Function
Upper limit hi Output turns ON if the
measurement value ≥ comparative
set value 2.
Lower limit lo Output turns ON if the
measurement value ≤ comparative
set value 2.
Upper and
lower limit
hi-lo The comparative upper-limit set
value and comparative lower-limit
set value can be set separately and
expressed high and low.
Output turns ON if the
measurement value ≥ comparative
upper-limit set value 2 or if the
measurement value is ≤
comparative lower-limit set value 2.
K3GN
Pulse
Hysteresis
Comparative set value
Measurement value
Comparative output
ON
OFF
Hysteresis
Comparative set value
Measurement value
Comparative output
ON
OFF
Hysteresis
Comparative
upper-limit set value
Comparative
lower-limit set value
Measurement value
Comparative output
ON
OFF
Hysteresis
Upper Limit Lower Limit Upper and Lower Limits
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
Comparative
set value 2
Comparative
set value 1
Comparative
2 output
Comparative
1 output
ON
OFF
PA S S
(Transistor
output
models only)
Comparative upper-
limit set value 2
Comparative upper-
limit set value 1
Comparative lower-
limit set value 1
Comparative upper-
limit set value 2
Comparative
2 output
Comparative
1 output
Comparative upper-
limit set value 2
Comparative upper-
limit set value 2
Comparative
set value 1
Comparative
2 output
Comparative
1 output
PASS
(Transistor
output
models only)
PASS
(Transistor
output
models only)
Upper Limit 2-stage Output Threshold Output Combination of Upper Limit and Upper/
Lower Limits
K3GN
11
Linear Output Type
Linear output
type
Parameter Meaning of set value
Linear current
type
0-20 Linear current type: 0 to 20 mA
4-20 Linear current type: 4 to 20 mA
Linear voltage
type
0-5 Linear voltage type: 0 to 5 V
1-5 Linear voltage type: 1 to 5 V
0-10 Linear voltage type: 0 to 10 V
K3GN
12
Setting Menu and Parameters
key less than 1 s
Operation level
Power ON
Power ON
Operation level Adjustment level
Communications
setting level
Protect
Initial setting level
Advanced function
setting level
Calibration level
Adjustment level
Select
either.
Present value
Comparative
set value 1
to
to
to
to
to
to
Comparative
upper-limit
set value 1
Comparative
lower-limit
set value 1
Comparative
set value 2
Comparative
upper-limit
set value 2
Comparative
lower-limit
set value 2
Communications
writing
/
Select
either.
To the next parameter
SV will flash.
If 5 s lapses without any key being
pressed, the set value will be registered,
and the system will return to monitor status.
Change the set
value using the
Keys.
Measurement in progress
Measurement stopped
Not displayed for some models.
Level change
key
less than 1 s
key
less than 1 s
key
3 s min.
key
1 s min.
key
1 s min. Password input
Password input
+key
at least the user-set time
+keys
1 s min.
Changing Set Values
While the parameter is being displayed, press the Key to display
the set value.
Monitor Status
Press the Key again to enter the status for setting.
Setting Status
The part to be changed will flash.
Make the required setting, then press the Key. The system will
switch to the next parameter and the set value will be registered.
Monitor status Setting status
Measurement is stopped in the setting level.
At that time all outputs will turn OFF.
K3GN
13
key 1 s min.
key 1 s min.
key 3 s min.
Analog input
Analog input
Pulse input
Pulse input
Input type
Analog
model
Pulse
frequency
Scaling
input
value 1
Scaling
display
value 1
to
to
to
to
to
to
to
to
Scaling
input
value 2
Scaling
display
value 2
Scaling
input value
Scaling
display
value
Decimal
point
position
to
Comparative
1 type
Comparative
2 type
Move to
advanced
setting level
to to
Initial setting level
Communications setting level
Advanced setting level
Communications
unit No.
to
Baud rate
/
/
/
//
Data bits
/
Stop bits
Parity
,
kbps
key 1 s min.
Analog input
Enter password
"-0169"
Pulse input
Parameter
initialization
Average
processing
Event input
allocation
Comparative
1 hysteresis
Comparative
2 hysteresis
Auto-zero
time
Startup
compensation
time
Display
color change
Display
auto-return
time
Move-to-
protect
level time
to to
Send
waiting time to to
Move to
calibration
level
None:
Even:
Odd:
Analog:
Pulse:
Remote:
/
/
/
/
/
//
/
Hz
Upper limit:
Lower limit:
Upper and
lower limits:
Upper limit:
Lower limit:
Upper and
lower limits:
Green (red):
Green:
Red (green):
Red:
/
/
/
//
ms
s
to to s
to s
s
to to
to to
to
times
The highlighted values indicate default settings.
key less than 1 s
to to
Linear
current
Linear
voltage
Linear
output
upper-limit
set value
Linear
output
lower-limit
set value
K3GN-ND@
K3GN-NL
@
(Microvoltage input)
K3GN
14
Operation/Adjustment Protection
Restricts key operation in the operation level and adjustment level.
•The default setting is 0.
•Protection is not enabled when the setting is 0 (initial setting).
Setting Change Protection
Restricts changes to settings.
•The default setting is OFF.
Note: Changes to protection level parameters, moving to advanced
function setting level, and moving to calibration level are all
allowed.
Initial Setting/Communications
Protection
Restricts moving to the initial setting level, communications setting
level, and advanced function setting level.
•The default setting is 1.
Forced-zero Protection
Restricts the executing or clearing of a forced zero by using the keys.
•The default setting is OFF.
■Error Displays (Troubleshooting)
If an error occurs, error information will be displayed on the main display. Check the error according to the display and correct the error as indicated.
Protect level
Operation/
adjustment
protection
Initial setting/
communications
protection
//
Setting
change
protection
Forced-zero
protection
/
/
// Restricts menu display and moving for the initial setting level, communications
setting level, and advanced setting level.
Restricts changes to setup by operating the keys on the front panel.
Restricts forced-zero operation by operating the keys on the front of the panel.
(This item is not displayed if pulse input is used.)
Restricts menu display and writing in the operation level and adjustment level.
Setting Operation level Moving to
adjustment
level
Present value
display
Comparative
value display
0 Allowed Allowed Allowed
1 Allowed Allowed Prohibited
2 Allowed Prohibited Prohibited
Setting Details
OFF Changes to settings using the keys are allowed.
(Moving to setting status is allowed.)
ON Changes to settings using the keys are prohibited.
(Moving to setting status is prohibited.)
Setting Moving to initial setting level
Moving to
communications
level
0 Allowed (message for moving to
advanced function setting level
displayed)
Allowed
1 Allowed (message for moving to
advanced function setting level not
displayed)
Allowed
2Prohibited Prohibited
Setting Details
OFF Executing or clearing of forced zero allowed.
ON Executing or clearing of forced zero prohibited.
Main display Level display Error details Correction
e111 (E111) Not lit Memory error: RAM Cycle the power supply. If the display does not change, replacement is
required. If the error is removed, the original error may have been
caused by noise. Check that there are no possible sources of noise
nearby.
e111 (E111) sMemory error: EEP
s.err (S.Err)
flashing
Not lit Input error or input
range exceeded.
The outputs will all turn OFF.
Check that the input wiring is correct, that there is no disconnection, or
short-circuit, and that the input type is correct. Alternatively, limit the
99999
flashing
Not lit Display range over:
Upper limit
This is not an error. It is displayed when the display range is exceeded
even if the present value is within the input range and control range.
Limit the input value and display value to within the range.
:9999
Flashing
Not lit Display range over:
Lower limit
K3GN
15
Operation
■Main Functions
Scaling
The K3GN includes a scaling function that can convert the input
signal to a desired value and display that value.
The displayed values can be freely adjusted to shift values, to create
reversed displays, or to create positive/negative displays.
Teaching
Teaching is used when using scaling or setting comparative set
values to set the present measurement values as the set values
instead of inputting with the Shift and Up/Zero Keys. Teaching is
useful for making settings while checking the operation status of the
K3GN.
Average Processing
Average processing can be performed for measurement values using
four levels (OFF, 2 times, 4 times, or 8 times). Average processing
stabilizes displayed values by averaging the corresponding input
signals that fluctuate dynamically. Select the appropriate number of
averaging times depending on the application.
Forced-zero Function
It is possible to shift from a
value to the zero point with
one touch of the Up/Zero
Key on the front panel (for
example, when adjusting
reference values).
Note: This function can be
used only when
forced-zero operation
protection is released.
Changing the Display Color
The color of the value displayed can be set to either red or green.
Make the setting according to the purpose and application of the
equipment in which the K3GN is installed. The display color can also
be set to change from green to red, or from red to green, according
to the status of the comparison criteria.
Output Type Selection
Output operation for comparative set values can be freely selected.
Upper limit: Output ON if the measurement value ≥ comparative set
value.
Lower limit: Output ON if the measurement value ≤ comparative set
value.
Upper/lower limit: Output ON if the measurement value ≥
comparative upper-limit set value or if the measurement value is ≤
the comparative lower-limit value.
Key Protection
Key protection is used to restrict changes to displays and settings
using the front panel keys and to restrict menu display and
movement of operation levels. This function is effective for preventing
misuse during operation.
Startup Compensation Time (Rotary
Pulse Input Only)
The startup compensation time parameter keeps the measurement
operation from sending an unnecessary output corresponding to
instantaneous, fluctuating input from the moment the K3GN is turned
ON until the end of the preset period.
Hysteresis
The hysteresis of comparative outputs can be set to prevent the chat-
tering of relay or transistor outputs.
INPUT1 INPUT2 Input value
DISPLAY1
DISPLAY2
()()
Display
value
INPUT2
INPUT1
Input
value
DISPLAY1
DISPLAY2
Display
value
/ZERO
ZEROOUT1
OUT2
SV
HOLD
CMW
K3GN
K3GN
16
Dimensions
Note: All units are in millimeters unless otherwise indicated.
Installation
1. Insert the K3GN into the panel cut-out hole.
2. For a waterproof installation, insert the rubber gasket onto the
body of the K3MA-J.
3. Fit the adaptor into the grooves on the left and right sides of the
rear case, then push it until it contacts the panel to secure the
K3MA-J.
Angle of View
The K3GN is designed to provide the best visibility at the angles
shown in the following diagram.
■Rubber Packing
The Rubber Packing ensures a waterproof level conforming to
NEMA4X. Depending on the operating environment, deterioration,
contraction, or hardening of the Rubber Packing may occur, making
replacement necessary. Contact your OMRON representative if
replacement is required.
■Wiring Precautions
•Wire the power supply with the correct polarity. Wiring with
incorrect polarity may result in damage or burning.
•Wire the terminals using crimp terminals.
•Tighten terminal screws to a torque of approx. 0.5 N·m.
•Wire signal lines and power lines separately to reduce the influence
of noise.
■Wiring
Power Supply
•Input 24 VDC to terminals 1 and 2.
•Use M3 crimp terminals of the type shown below.
/ZERO
ZERO
OUT1
OUT2
SV
HOLD
CMW
T
K3GN
380
22
44.8
48
24
35
Separate mountingGang mounting
22.2 +0.3
022.2 +0.3
0
45+0.6
0
(48 × No. of Panels − 2.5) +1.0
0
40 min.
The products cannot be
made waterproof when
gang-mounted.
7 mm
3.6 mm
Main Display Character Size
The K3GN uses M3 terminals. A terminal
cover is provided.
Panel Cutout DimensionsK3GN
•For installation, insert the K3GN
panel into the rectangular hole,
insert the adaptor from the rear, and
push it in to reduce the gap between
the panel surface and the adaptor.
Secure the Unit with the screws.
For water-proof installation, insert
the rubber gasket onto the body of
the K3GN.
•If multiple mounted Units are used,
make sure the ambient temperature
for the K3GN does not exceed the
specified temperature.
Mounting Recommended Panel Thickness 1 to 5 mm.
Mount the product horizontally.
Rubber packing
Adaptor
20°
40°
1
2
24 VDC
5.8 mm max.
5.8 mm max.
K3GN
17
Measurement Input
The following table shows the relation between input ranges and
input terminals.
Input range Input terminals
DC voltage/DC current 4 to 20 mA E-F
1 to 5 V D-E
±5 V
±10 V
No-voltage contacts and NPN open collector
(Models with NPN inputs)
B-C
No-voltage contacts and PNP open collector
(Models with PNP inputs)
A-C
Be sure to read the Precautions for Correct Use and other information required when using the K3GN in the
following user’s manual.
K3GN Digital Panel Meter User’s Manual (Cat.No. N102)
In the interest of product improvement, specifications are subject to change without notice.
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.
To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.
Read and Understand This Catalog
Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you have any questions or
comments.
Warranty and Limitations of Liability
WARRANTY
OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or other period if specified)
from date of sale by OMRON.
OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NON-INFRINGEMENT, MERCHANTABILITY, OR
FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS
DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE. OMRON DISCLAIMS ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED.
LIMITATIONS OF LIABILITY
OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR COMMERCIAL LOSS
IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT
LIABILITY.
In no event shall the responsibility of OMRON for any act exceed the individual price of the product on which liability is asserted.
IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS REGARDING THE PRODUCTS UNLESS
OMRON'S ANALYSIS CONFIRMS THAT THE PRODUCTS WERE PROPERLY HANDLED, STORED, INSTALLED, AND MAINTAINED AND NOT
SUBJECT TO CONTAMINATION, ABUSE, MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR.
Application Considerations
SUITABILITY FOR USE
OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the combination of products in the customer's
application or use of the products.
At the customer's request, OMRON will provide applicable third party certification documents identifying ratings and limitations of use that apply to the
products. This information by itself is not sufficient for a complete determination of the suitability of the products in combination with the end product,
machine, system, or other application or use.
The following are some examples of applications for which particular attention must be given. This is not intended to be an exhaustive list of all possible
uses of the products, nor is it intended to imply that the uses listed may be suitable for the products:
•
Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or uses not described in this catalog.
•
Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical equipment, amusement machines, vehicles,
safety equipment, and installations subject to separate industry or government regulations.
•
Systems, machines, and equipment that could present a risk to life or property.
Please know and observe all prohibitions of use applicable to the products.
NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY WITHOUT ENSURING THAT THE
SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON PRODUCTS ARE PROPERLY RATED AND
INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.
PROGRAMMABLE PRODUCTS
OMRON shall not be responsible for the user's programming of a programmable product, or any consequence thereof.
Disclaimers
CHANGE IN SPECIFICATIONS
Product specifications and accessories may be changed at any time based on improvements and other reasons.
It is our practice to change model numbers when published ratings or features are changed, or when significant construction changes are made.
However, some specifications of the products may be changed without any notice. When in doubt, special model numbers may be assigned to fix or
establish key specifications for your application on your request. Please consult with your OMRON representative at any time to confirm actual
specifications of purchased products.
DIMENSIONS AND WEIGHTS
Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when tolerances are shown.
PERFORMANCE DATA
Performance data given in this catalog is provided as a guide for the user in determining suitability and does not constitute a warranty. It may represent the
result of OMRON’s test conditions, and the users must correlate it to actual application requirements. Actual performance is subject to the OMRON
Warranty and Limitations of Liability.
ERRORS AND OMISSIONS
The information in this document has been carefully checked and is believed to be accurate; however, no responsibility is assumed for clerical,
typographical, or proofreading errors, or omissions.
2009.11
In the interest of product improvement, specifications are subject to change without notice.
OMRON Corporation
Industrial Automation Company
http://www.ia.omron.com/
(c)Copyright OMRON Corporation 2009 All Right Reserved.
