CONTROLS CONTROLS
EN SERIES
LIQUID LEVEL CONTROL
UL listed CSA recognized
• Pump Up or Down Control
• DIN-Rail Enclosure
• 5 kΩto 100 kΩ
• SPDT 8 Amp Relay Output
SPECIFICATIONS:
Input Power . . . . . . . . . . . . . . . . . 24, 110, 230 VAC +15%
50/60 Hz
Max. Power Consumption . . . . . . 3 VA
Probe Sensitivity . . . . . . . . . . . . . 5 kΩto 100 kΩ
Probe Voltage . . . . . . . . . . . . . . . . 24 VAC Max.
Probe Current . . . . . . . . . . . . . . . . 5 mA
Max. Probe Cable Capacitance . . 10 nf
Probe/Output Relay Insulation . . . 2,500 k VAC
Output Relay . . . . . . . . . . . . . . . . . SPDT Relay
Max. Output Rating . . . . . . . . . . . . 8 Amp
Relay Electrical Life . . . . . . . . . . . 2 x
Operating Temperature . . . . . . . . . +14°F to 140°F (-20°C to 60°C)
Weight . . . . . . . . . . . . . . . . . . . . . . 5 oz. (140g)
GENERAL FEATURES:
The EN series is designed to monitor conductive liquids such as
tap water, waste water, sea water, coffee, etc. The principle is based
on the measurement of the resistance of the liquid between two
submerged probes. When this value is lower than the preset threshold
selected on the dial of the unit, the output relay changes state.
Applications are found in the environmental and chemical industries,
food equipment machinery and food processing technology.
ORDERING INFORMATION:
Voltage Part Number Type
24 VAC 84 870 001 EN, Pump Up/Pump Down Selectable
24 VAC 84 870 101 END, Pump Down Only
120 VAC 84 870 003 EN, Pump Up/Pump Down Selectable
120 VAC 84 870 103 END, Pump Down Only
230 VAC 84 870 004 EN, Pump Up/Pump Down Selectable
230 VAC 84 870 104 END, Pump Down Only
CONFORMITY:
Immunity to interference and noise (EMC)
IEC 1000.4.5 Surge immunity: Level 3
IEC 1000.4.2 Electrostatic discharges: Level 3
IEC 255.5 Damped oscillated waves: Level 3
IEC 1000.4.3 Radiated disturbance Level 3
IEC 1000.4.4 Fast transient Level 3
IEC 1000.4.6 Conducted RF: Level 3 (ENV 50141)
RF Emissions (EMC)
CENELAC EN 55022; Class A WIRING:
11
12 14
CA1
A2
min
˜
˜
max
Un
T
Regulation of two levels: Minimum /
Maximum
The output relay changes state when the level of liquid
reaches the maximum electrode, with the minimum
electrode submerged. It returns to its initial state when the
minimum probe is no longer in contact with the liquid.
Regulation of one level:
Connect the maximum and common terminals together.
The relay will change state when the minimum probe
enters or leaves the liquid.
Note: If the power break ∆Tlasts for 0.5 seconds or more, the
relay reenergizes instantly if in «UP» mode and is
deenergised if in «DOWN» mode.
Unit power-up
Minimum level
Filling
function
Emptying
function
Controlled level
Maximum level
Output
relay
Down
or
Up
Un
T
Unit power-up
Controlled
Level
Filling function
Draining function
Controlled level
Power
U
Output
relay
Down
or
Up
FILLING OR EMPTYING CONTROL (EN):
~
~
Products and specifications subject to change without notice.
Consult factory for application assistance.
204 Airline Drive, Suite 300, Coppell, Texas 75019 / Tel: (800) 677-5311 / FAX: (800) 677-3865 / www.crouzet-usa.com
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