electronic hygrotherm
Hygrotherm
ETF 012
Heater
ETF012 Series
l Temperature and Humidity
Adjustable
l Optical Operating Display (LED)
l High Switching Capacity
l Clip Fixing
The electronic hygrotherm senses
the ambient temperature and relative
humidity in an enclosure with electric/
electronic components, and turns on a
heater (or alternatively, a fan) at either set
point, helping prevent the formation of
condensation in the enclosure. The LED
integrated in the adjustment knob on the
active controller is lit when the connected
device is in operation.
SPECIFICATIONS
Switch Difference (Temperature):
2K (±1K tolerance) at 25°C (77°F)
(50% RH)
Switch Difference (Humidity): 4% RH
(±1% tolerance) at 25°C (77°F)
(50% RH)
Reaction Time (Humidity):
Approximately 5 sec
Contact Type: Change-over
contact (relay)
Contact Resistance: <10 mΩ
Service Life:
NC: >50,000 cycles
NO: >100,000 cycles
Max Switching Capacity: 24 Vdc, 4 A
Relay NC: 240 Vac, 6 (1) A output
Relay NO: 240 Vac, 8 (1.6) A output
NC: 120 Vac, 6 (1) A
NO: 120 Vac, 8 (1.6) A
EMC: Acc. to EN 55014-1-2,
EN 61000-3-2, EN 61000-3-3
Optical Indicator: LED
Connection: 5-pole terminal, clamping
torque 0.5Nm max; rigid wire 2.5 mm²
(0.10 in
ferrule) 1.5 mm² (0.06 in2)
Mounting: Clip for 35 mm (1.4") DIN
rail, EN50022
Casing: Plastic according to UL94 V-0,
light gray
Dimensions: 77 x 60 x 43 mm
(3.0 x 2.4 x 1.7")
Weight: Approx. 0.20 kg (7.1 oz)
2
) stranded wire (with wire end
ETF01230901
shown larger
than actual size.
Connection diagram
Dimensions:
mm (inch)
Example of connection
Hygrotherm
ETF 012
Heater
Fitting Position: Vertical
Operating Temperature: 0 to 60°C
(32 to 140°F)
Storage Temperature: -20 to 80°C
(-4 to 176°F)
Protection Type: NEMA 2 (IP20)
To Order Visit omega.com/etf012_series for Pricing and Details
MODEL NO. DESCRIPTION
ETF01230900 Humidity and °F temp control, SPDT, 32 to 140°F,
ETF01230901 Humidity and °C temp control, SPDT, 0 to 60°C,
Ordering Examples: ETF01230900, electronic hygrotherm.
ETF01230901, electronic hygrotherm.
50 to 90% RH, 120 Vac
50 to 90% RH, 120 Vac
N
Enclosures
Heater
N-x