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Electronic hygrostat - EFL 012

EFL

The electronic hygrostat measures the surrounding relative humidity and can switch a signal current via its internal relay with a potential-free change-over contact. Signal-processing devices can be controlled directly with the EFL 012. In order to control heating and cooling equipment, filter fans and signal devices the switch module SM 010 or a similar device is needed.

The LED integrated in the adjustment knob shows the closed status of the contact 1-2. When relative humidity drops contact 1-2 opens and the LED turns off. In currentless state (no supply voltage) contact 1-2 opens.

Read more
  • Large setting range
  • Small hysteresis
  • Optical operating display (LED)
  • Change-over contact
  • Signal application

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Technical data

General data

Control range humidity from 40 % RF
Control range humidity to 90 % RF
Hysteresis humidity 5% RH @ +25°C, 50% RH
Mounting Clip on, DIN rail
Contact type Changeover (SPDT)
Colour Light grey

Rated operating conditions

Breaking capacity DC 10mW (at 0.1V, 100mA or 1mA, 10V)
Connection type 5-pole terminal
Operational temperature 0 °C ... +60°C
Storage temperature -20°C ... +70°C
Life span > 100,000 cycles
Operating humidity < 90% RH
Humidity storage <90% RH

*Invisible Heading*

Dimensions

Height 64,5 mm
Width 42 mm
Depth 38 mm
Weight 0,07 kg
Material of body Plastic

Safety & approvals

IP class IP20
Approvals CE, cULus, EAC, RoHS, UL, UL E164102

Product description

The electronic hygrostat measures the surrounding relative humidity and can switch a signal current via its internal relay with a potential-free change-over contact. Signal-processing devices can be controlled directly with the EFL 012. In order to control heating and cooling equipment, filter fans and signal devices the switch module SM 010 or a similar device is needed.

The LED integrated in the adjustment knob shows the closed status of the contact 1-2. When relative humidity drops contact 1-2 opens and the LED turns off. In currentless state (no supply voltage) contact 1-2 opens.

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