Honeywell GF20, DGF20 PRODUCT DATA
GF20 / DGF20
DAMP-PROOF TEMPERATURE SENSOR
PRODUCT DATA
DIMENSIONS
APPLICATION
Damp-proof sensor, with protective guard against dripping
water, for use in greenhouses and other similar applications.
TYPES
• GF 20, with one sensor element
• DGF 20, with two sensor elements to form a mean value
SPECIFICATIONS
Sensor element
Resistance 20 kOhm at 25 °C
Operating range -20...+30 °C
Rod sensor Plastic with guard against
dripping water
Mounting Hanging over strain relief
Electrical connection (GF 20) 5 m cable, 2-core
(DGF 20) 5 m cable, 3-core
Protection class IP 23, IEC 60529
For technical information on the NTC thermistor, see
"Temperature Sensors" (EN0B-0476GE51).
NTC–thermistor
ELECTRICAL CONNECTION
The wiring of the temperature sensor must be in accordance
with the overall wiring circuit diagram. The terminals are not
polarized; thus, in the event of the wires being connected in
reverse, no malfunction will occur.
Fig. 1. Dimensions (mm)
® U.S. Registered Trademark EN0B-0378GE51 R0907
Copyright © 2007 Honeywell Inc. • All rights reserved
5
67 89
AD12
black (1)
with 2 x DGF20
brown (2)
light blue (3)
Mean value
1102
34
black (1)
brown (2)
light blue (3)
1 2 1 2 1 2 1 2
Connection to branch AD12
(mean value) with 4 x GF20
Fig. 2. Electrical connection
GF20 / DGF20
Manufactured for and on behalf of the Environmental and Combustion Controls Division of Honeywell Technologies Sàrl, Ecublens, Route du Bois 37, Switzerland by its Authorized Representative:
Automation and Control Solutions
Honeywell GmbH
Böblinger Stra
D-71101 Schönaich
Phone: (49) 7031 63701
Fax: (49) 7031 637493
http://ecc.emea.honeywell.com
Subject to change without notice. Printed in Germany
EN0B-0378GE51 R0907
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