LC2H
68
Panel mounting type
One-touch installation type
Panel mounting type
Installation frame type
PC board mounting type
Features
1. 8.7 mm .343 inch Character Height
(previously 7 mm)
Easy-to-read character height increased
from 7 mm to 8.7 mm .276 inch to .343
inch.
2. Plenty of Digits
3. Counting Speed Switchable between
2 kHz and 30 Hz
4. Panel Mounting Type Features 2 In-
stallation Methods
Comes with very easy one-touch installa-
tion type and also installation frame type
that uses the bracket on the timer/counter.
Choose a method that suits the applica-
tion.
5. Battery Replacement Easy on Envi-
ronment
To replace battery simply remove body for
the one-touch installation type, and re-
move battery lid for the installation frame
type.
6. Screw Terminals Designed for Safety
Built in finger protection.
7. Panel Covers Replacable
(Standard color is ash gray.)
Change the panel design by replacing
with a black panel cover.
8. Conforms to IP66 Protective Con-
struction (Only installation frame
type.) (Front panel surface)
9. Input Methods
1) Non-voltage input method
2) Voltage input method
3) Free voltage input method
10. Backlight Type Added to Series and
Now 2-color Switchable (green/red)
Easy viewing even in dark places and
switchable between green and red (Volt-
age input type).
11. Conforms to Safety Regulations
8.7mm
.343inch
8 digits
Product chart
Product types
1. Panel mounting type
1) One-touch installation type
1 Standard type
Note) Please ask us about types without front resetting.
Type Standard type Backlight type
Installation type Non-voltage input type Voltage input type
(4.5 to 30 V DC)
Free voltage input type
(24 to 240 V AC/DC)
Voltage input type
(4.5 to 30 V DC)
Panel
mounting
type
One-touch installation type
Installation frame type
PC board mounting type ———
No. digits Counting speed Front reset Input method Part No.
8 digits 2 kHz/30 Hz switchable Yes
Non-voltage input type LC2H-FE-2KK
Voltage input type (4.5 to 30 V DC) LC2H-FE-DL-2KK
30 Hz Free voltage input type (24 to 240 V AC/DC) LC2H-FE-FV-30
2 Backlight type
No. digits Counting speed Front reset Input method Part No.
8 digits 2 kHz/30 Hz switchable Yes Voltage input type (4.5 to 30 V DC) LC2H-FE-DL-2KK-B
LC2H
DIN HALF SIZE
LCD COUNTER
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LC2H
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2) Installation frame type
1 Standard type
Note) Please ask us about types without front resetting.
No. digits Counting speed Front reset Input method Part No.
8 digits 2 kHz/30 Hz switchable Yes
Non-voltage input type LC2H-F-2KK
Voltage input type (4.5 to 30 V DC) LC2H-F-DL-2KK
30 Hz Free voltage input type (24 to 240 V AC/DC) LC2H-F-FV-30
2 Backlight type
2. PC board mounting type
Specifications
1. Panel mounting type
Notes) 1. The value given for battery life is calculated based on continuous operation (count input signal ON/OFF = 1:1), therefore, this value is not guaranteed.
Also, battery life is decreased 30% when operation is continuous with 2 kHz count inputting in 2 kHz mode.
2. Operation is at 25 Hz when using 24 V AC.
3. Only for installation frame type.
No. digits Counting speed Front reset Input method Part No.
8 digits 2 kHz/30 Hz switchable Yes Voltage input type (4.5 to 30 V DC) LC2H-F-DL-2KK-B
No. digits Counting speed Front reset Input method Part No.
8 digits 2 kHz No Non-voltage input type LC2H-C-2K-N
30 Hz LC2H-C-30-N
Type Standard type Backlight type Standard type
Item Non-voltage input Voltage input Free voltage type
No. digits 8 digits
External power supply Not required (built-in battery)
Max. counting speed 2 kHz/30 Hz (Switchable by switch) 30 Hz (Note 2)
Count
input
Min. input signal width
(ON: OFF = 1:1) 0.25 ms/16.7 ms (Switchable by switch) 16.7 ms
Input method (signal)
Non-voltage input using
contacts or open collector
connection
High level: 4.5 to 30 V DC
Low level: 0 to 2 V DC
High level:
24 to 240 V AC/DC
Low level:
0 to 2.4 V AC/DC
Input impedance
When shorted:
Max. 10 k
When open:
Max. 750 k
Approx. 4.7 k —
Residual voltage Max. 0.5 V — —
Reset
input
Min. input signal width 200 ms
Input method (signal)
Non-voltage input using
contacts or open collector
connection
High level: 4.5 to 30 V DC
Low level: 0 to 2 V DC
Non-voltage input using
contacts or open collector
connection
Input impedance
When shorted:
Max. 10 k
When open:
Max. 750 k
Appox. 4.7 k
When shorted:
Max. 10 k
When open:
Max. 750 k
Residual voltage Max 0.5 V — Max. 0.5 V
Display method 7-segment LCD 7-segment LCD
With green/red backlight 7-segment LCD
Breakdown voltage (initial) Between charged and uncharged parts: 1,000 V AC for 1 minute.
Between charged and
uncharged parts: 2,000 V
AC for 1 minute.
Insulation resistance (initial) Min. 100 M (measured at 500 V DC) Measurement location same as for break down voltage.
Backlight power — 24 V DC (±10%) —
Protective construction (Note 3) IEC Standard IP66 (only panel front: when using rubber gasket)
Accessories (Note 3) Rubber gasket, mounting bracket
Battery life 7 years (at 25°C 77°F) Note 1 6 years (at 25°C 77°F)
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2. PC board mounting type
3. Common
Type PC board mounting type
Item
Input method Non DC voltage input
No. digits 8 digits
Rated operation voltage 3 V DC
Allowable operation voltage range 2.7 to 3.3 V DC
Current consumption Max. 30 µA (max. 250 µA during reset input)
Max. counting speed 2 kHz 30 Hz
Count
input
Min. input signal width
(ON: OFF = 1:1) 0.25 ms 16.7 ms
Input method Non-voltage input using contacts or open collector connection
Input impedance When shorted: Max. 10 k
When open: Max. 750 k
Residual voltage Max. 0.5 V
Reset
input
Min. input signal width 10 ms
Input method Non-voltage input using contacts or open collector connection
Input impedance When shorted: Max. 10 k
When open: Max. 750 k
Residual power Max. 0.5 V
Break down voltage (initial) Between charged and uncharged parts: 1,000 V AC for 1 minute.
Insulation resistance (initial) Min. 100 M (measured at 500 V DC) Measurement location same as for break down voltage.
Type Panel mounting/PC board mounting types
Item
Vibration resistance Functional 10 to 55 Hz (1 cycle/min.), single amplitude: 0.15 mm .006 inch (10 min. on 3 axes)
Destructive 10 to 55 Hz (1 cycle/min.), single amplitude: 0.375 mm .015 inch (1 hr. on 3 axes)
Shock resistance Functional Min. 98 m/s2 (4 times on 3 axes)
Destructive Min. 294 m/s2 (5 times on 3 axes)
Operation temperature –10 to +55°C +14 to +131°F (without frost or dew)
Storage temperature –25 to +65°C –13 to +149°F (without frost or dew)
Ambient humidity 35 to 85% RH
Part names
1. Front reset button
This button resets the count value. It does
not work when the lock switch is ON. Be
aware that battery life will decrease if this
switch is used frequently.
2. Lock switch (Refer to chart on right.)
Disable the front reset button.
Note) Turn ON at the LCD side (reset disabled) and
OFF at the terminal block side (reset enabled).
3. Count speed switch (Refer to chart
on right.)
Use this switch to switch the count speed
between 30 Hz and 2 kHz. (On the non-
voltage and voltage input types, 30 Hz is
on the LCD side and 2 kHz is on the ter-
minal block side. Fixed at 30 Hz for free
voltage input type.)
Note) You must press the front reset button when you
change the count speed switch setting.
Notes) 1. ❇Default setting when shipped.
2. Make the switch setting before installing to panel.
Non-voltage input/voltage input Free voltage input
Lock switch
(Unit display 1)
Count speed
switch
(Unit display 2)
Count speed switch
Lock switch
Front reset button
RESET
COUNTER LC2H
(Terminal block side)
(LCD side)
OFF❇
ON
(Terminal block side)
(LCD side)
2k Hz
30Hz❇
—
(Fixed at 30 Hz)
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71
Dimensions
1. Panel mounting type
• External dimensions
1) One-touch installation type
mm inch
General tolerance: ±1.0 ±.039
2) Installation frame type
• Panel installation diagram
Note) When installing to a 4.5 mm .177 inch thick panel, remove the rubber spacer
first.
• Panel installation diagram
COUNTER LC2H
RESET
44.8
1.764
54.4
2.142
48
1.890
5
.197
(44)
(1.732)
10.4
.409
7
.276
22
.866 24
.945
Reset button
Rubber spacer
Panel (1 to 4.5mm
.039 to .177inch
thickness)
COUNTER LC2H
RESET
44.8
1.764
54.4
2.142
48
1.890
5
.197
44
1.732
10.4
.409
7
.276
22
.866 24
.945
Reset button
37
1.457
Installation screws
(found on mounting bracket)
Mounting bracket
ATH3803 (included)
Rubber gasket
ATH3804 (included)
Panel
(1 to 4.5mm .039 to .177inch thickness)
• Panel cut-out dimensions
The standard panel cut-out is shown below.
Use the mounting bracket (ATH3803) and the rubber packing (ATH3804).
(Only mounting bracket installation type.)
• When installing repeatedly (sealed installation)
(Only mounting bracket installation type.)
Notes) 1. Suitable installation panel thickness is 1 to 4.5 mm .039 to .177 inch.
2. Waterproofing will be lost when installing repeatedly (sealed installation).
45
1.772
+0.5
0
+.020
0
22.2
.874
+0.5
0
+.020
0
60 min.
2.362 min.
22.2
.874
+0.5
0
+.020
0
A=(48×n-2.5)
A=(1.890×n-.098)
A
+1.0
0+.039
0
• Terminal layout and wiring diagrams
1) Standard type
Non voltage input type Voltage input type Free voltage input type
Q-R are connected internally.
Count input
2143
Reset input
+V
0V
+V
0V
2143
Count input Reset input
21or 43
Count input Reset input
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72
2) Backlight type
Voltage input type
Backlight
+V0V
<When red><When green>
+V0V
+V
0V
+V
0V
Count input Reset input
12
5
6
34 12
5
6
34 12
5
6
34
2. PC board mounting type
• External dimensions
• Terminal layout and wiring diagrams
General tolerance: ±1.0 ±.039 mm inch
PC board pattern (BOTTOM VIEW)
LC2H
COUNTER
33.02±0.3
1.300±.012
43.4
1.709 17.3
.681
DIP switch × 8
19
.748 15.24±0.3
.600±.012
3.3±0.3
.130±.012
5.08±0.3
.200±.012
0.5±0.3
.020±.012
0.3±0.1
.012±.004
5.08±0.3
.200±.012
0.6±0.1
.024±.004
Q-E, }-w, e-t and S-F are connected internally.
Reset inputCount input 15 17 26 28
14 12 3 1
15.24
.600
33.02
1.300
1.9
.075
1.9
.075
5.19
.204
2.54
.100
2.54
.100
8-0.8 dia.
8-.031 dia.
5.08
.200
5.08
.200
5.19
.204
Mounting area
Connection sockets
28 pin DIP terminal
Input method
1. Standard type
Notes) 1. When using contact input, since current flow is small from terminals 1 and 3 on the panel mounting type and terminals e to t and S to F on the PC board
mounting type, please use relays and switches with high contact reliability.
2. When using transistor input, use the following as a guide for which transistors (Tr) to use for inputting. (Collector withstand voltage Q 50 V, leakage current < 1 µA)
Notes) 1. 2 and 4. (The input and reset circuits are functionally insulated.)
2. When using transistor (Tr) input, use the right as a guide. (Collector withstand voltage Q 50 V, leakage current < 1 µA)
3. Be aware that the application of voltage that exceeds the voltage range of the H level to the count input terminal, and the application of voltage to the reset input
terminal, can cause damage to the internal elements.
Non-voltage input type
Panel mounting type PC board mounting type
Contact input Transistor input Contact input Transistor input
NPN transistor NPN transistor
Voltage input type
Free voltage input type
Contact input Transistor input
NPN transistor PNP transistor
12 3 4 Reset
input
Count
input
(W and R are connected internally.)
12 34
0V 0V
(W and R are connected internally.)
Reset
input
Count
input
Reset
input
Count
input
3V DC
15 17
14 12
26 28
31
Reset
input
Count
input
3V DC
15 17
14 12
26 28
31
Reset
input
Count
input
12 34
12 34 Reset
input
Count
input
+V +V
Reset
input
Count
input 12 34
+V +V
12 34
or or or
Reset input
Count input
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Explanation of operation
1. Counting takes place when the count
input signal is ON.
2. Counting resumes again when the
count value reaches 99999999 (full scale
value) and then returns to “0” with a new
count input.
3. No measurement takes place when a
reset is input.
1) When reset is ON, resetting takes place
and the count becomes “0”.
2) Press the front reset button when you
want to reset manually (only panel instal-
lation type).
Note) Be aware that battery life will decrease if the
count input or reset input are left ON.
Note) ❇Count becomes “1” when the reset input is turned OFF while the count signal is being input.
Reset input
Count value
Count input
01 0 011
❇
99999999
Cautions for use
1. Non-voltage input type
For both panel mounting and PC board
mounting types
1) Never apply voltage to the non-voltage
input type. This will damage the internal
elements. Also, since there is a possibility
of erroneous operation, do not connect in
parallel the inputs of a non-voltage input
type and another counter from a single in-
put signal.
2) Since the current flow is very small from
the count input and reset input terminals
(1 and 3 on the panel mounting type
and terminals e to t and S to F on the
PC board mounting type) please use re-
lays and switches with high contact reli-
ability.
3) When inputting with an open collector
of a transistor, use a transistor for small
signals in which ICBO is 1 µA or less and
always input with no voltage.
4) When wiring, try to keep all the input
lines to the count and reset inputs as short
as possible and avoid running them to-
gether with high voltage and power trans-
mission lines or in a power conduit. Also,
malfunctions might occur if the floating ca-
pacitance of these wires exceeds 500 pF
(10 m 32.808 ft. for parallel wires of 2
mm2). When using 2 kHz mode, use with
a wiring floating capacitance of 120 pF (3
m 9.843 ft. for parallel wires of 2 mm2). In
particular, when using shielded wiring, be
careful of the capacitance between wires.
PC board mounting type
1) For external power supply use manga-
nese dioxide or lithium batteries (CR type:
3V).
2) Always reset after external power is ap-
plied and confirm that the display reads
“0”.
3) Make the wiring from the battery to the
counter unit as short as absolutely possi-
ble. Also, be careful of polarity.
4) Calculate battery life with the following
formula.
t = A/I
t: battery life [h]
I: LC2H current consumption [mA]
A: battery capacity until minimum
operation voltage is reached
[mAh]
5) Hand solder to the lead terminal. Do not
dip solder. With the tip of the soldering iron
at 300°C 572°F perform soldering within 3
seconds (for 30 to 60 W soldering iron).
2. Voltage input type
1) Be aware that applying more than 30 V
DC to count input terminals 1 and 2, and
reset input terminals 3 and 4 will cause
damage to the internal elements.
2) For external resetting use H level (ap-
plication of 4.5 to 30 V DC) between reset
terminals 3 and 4 of the rear terminals.
In this case, connect + to terminal 3 and
– to terminal 4. This is the valid polarity;
therefore, the counter will not work if re-
versed.
3) When wiring, try to keep all the input
lines to the count and reset inputs as short
as possible and avoid running them to-
gether with high voltage and power trans-
mission lines or in a power conduit. Also,
malfunctions might occur if the floating ca-
pacitance of these wires exceeds 500 pF
(10 m 32.808 ft. for parallel wires of 2
mm2).
3. Free voltage input type
1) Use count input terminals 1 and 2 for
free voltage input and reset terminals 3
and 4 for non-voltage input.
2) Be aware that the application of voltage
that exceeds the voltage range of the H
level to the count input terminal, and the
application of voltage to the reset input
terminal, can cause damage to the inter-
nal elements.
2. Backlight type
Notes) 1. Do not reverse the polarities when connecting the DC voltage for the backlight.
2. 2 and 4. (The input and reset circuits are functionally insulated.)
3. When using transistor (Tr) input, use the right as a guide. (Collector withstand voltage Q 50 V, leakage current < 1 µA)
4. Be aware that the application of voltage that exceeds the voltage range of the H level to the count input terminal, and the application of voltage to the reset input
terminal, can cause damage to the internal elements.
Voltage input type
Backlight connection
Contact input Transistor input
NPN transistor PNP transistor
Reset
input
Count
input
12 34
5
6
0V 0V
Reset
input
Count
input 12 34
+V +V
5
6
12 34
5
6
Reset
input
Count
input
+V +V
12 34
Green Red
24V DC
24V DC
5
612 34
5
6
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3) Since the current flow is very small from
reset input terminal 3, please use relays
and switches with high contact reliability.
4) When inputting a reset with an open
collector of a transistor, use a transistor
for small signals in which ICBO is 1 µA or
less and always input with no voltage.
5) To reset externally, short reset input ter-
minals 3 and 4 on the rear.
6) Input uses a high impedance circuit;
therefore, erroneous operation may occur
if the influence of induction voltage is
present. If you plan to use wiring for the in-
put signal that is 10 m or longer (wire ca-
pacitance 120 pF/m at normal
temperature), we recommend the use of a
CR filter or the connection of a bleeder re-
sistor.
4. How to reset multiple panel mount-
ing type counters all at once (input is
the same for count)
Non-voltage input type
Notes) 1. Use the following as a guide for choosing
transistors used for input (Tr).
Leakage current < 1 µA
2. Use as small a diode (D) as possible in the
forward voltage so that the voltage between
terminals 3 and 4 during reset input meets
the standard value (0.5 V).
( At IF = 20 µA, forward voltage 0.1 and
higher.)
Voltage input type
Note) Make sure that H (reset ON) level is at least 4.5
V.
5. Backlight luminance
To prevent varying luminance among
backlights when using multiple Backlight
types, please use the same backlight
power supply.
6. Insulation sheet
Before using a panel mounting type,
please pull and remove the insulation
sheet from the side of the product in the
direction of the arrow.
In consideration that the product might be
stored for long periods without being
used, an insulation sheet is inserted be-
fore shipping. Remove the insulation
sheet and press the front reset button.
One-touch installation type
Installation frame type
7. Waterproof construction (Installa-
tion frame type)
The operation part of the panel installa-
tion type (Installation frame type) is con-
structed to prevent water from entering
the unit and a rubber gasket is provided to
prevent water from entering the gap be-
tween the unit and the panel cutout. There
must be sufficient pressure applied to the
rubber gasket to prevent water from enter-
ing. Be sure to use the installation rein-
forcement screws when installing the
frame (ATH3803).
Note) The one-touch installation type is not
waterproof.
8. Do not use in the following environ-
ments
1) In places where the temperature
changes drastically.
2) In places where humidity is high and
there is the possibility of dew. (When dew
forms the display may vanish and other
display errors may occur.)
9. Conditions of use
1) Do not use in places where there is
flammable or corrosive gas, lots of dust,
presence of oil, or where the unit might be
subject to strong vibrations or shocks.
2) Since the cover is made of polycarbon-
ate resin, do not use in places where the
unit might come into contact with or be ex-
posed to environments that contain or-
ganic solvents such as methyl alcohol,
benzene and thinner, or strong alkali sub-
stances such as ammonia and caustic so-
da.
10. Cautions regarding battery replace-
ment
1) Remove wiring before replacing the
battery. You may be electrocuted if you
come into contact to a part where high
voltage is applied.
2) Make sure you are not carrying a static
electric charge when replacing the bat-
tery.
3) Battery replacement procedure
1 One-touch installation type
1. Using a tool remove the up/down hook
of the case.
2. Pull the unit away from the case.
3. Remove the battery from the side of the
unit. Do not touch the display or other
parts.
4. Before inserting wipe clean the surface
of the battery.
5. Insert the battery with the + and – sides
in the proper position.
6. After replacing the battery return the
unit to the case. Verify that the hook of the
case has properly engaged.
7. Before using press the reset button on
the front.
3or
DTr
4 3 4 3 4
D D
3or
+V +V
R
Tr
4 3 4 3 4 3 4
22
52
Green Red
5
626
24V DC 24V DC
Insulation sheet Reset button
Insulation sheet Reset button
Frame (ATH3803)
Tool
1
2
1
6
7
3
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2 Installation frame type
1. Remove the battery cover 1 from the
case.
2. Remove the battery 2 from the side of
the case. The battery will come loose if
you put the battery side face down and
lightly shake the unit
3. Before inserting wipe clean the surface
of the battery.
4. Insert the battery with the + and – sides
in the proper position.
5. After replacing the battery return the
battery cover to the case 5. Verify that the
hook of the battery cover is properly en-
gaged.
6. Before using press the reset button 6
on the front.
1
− side
+ side
2
6
5
Options
1. Accessaries
Panel cover (black)
Part No.: AEL3801
You can change the design of the front
panel by replacing it with this black panel
cover. The counter comes with an ash
gray panel cover as standard.
2. Lithium battery (3 V)
Part No.: ATH3802
Comes packaged with the LC2H (exclud-
ing the PC board mounting type).
3. Installation parts
Mounting bracket (suitable for installa-
tion frame type)
Part No.: ATH3803
Packaged with LC2H (panel mounting
type installation frame type).
Rubber gasket (suitable for installation
frame type)
Part No.: ATH3804
Packaged with LC2H (panel mounting
type installation frame type).
RESET
COUNTER LC2H
Panasonic
CR2477
3V
JAP
AN
Warning
•Make sure the + and − polarities are
positioned correctly.
• Do not throw the old battery into a fire,
short circuit it, take it apart, or allow it to
come into contact with heat.
• The battery is not rechargeable.
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