ALF, TF, KF, and RF
High-Accuracy Immersion, Duct, Room, and Surface Temperature Sensors
ALF KF
TF RF
PRODUCT DATA AND MOUNTING INSTRUCTIONS
Nominal value |
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PT100 |
100 Ω at 0 °C |
PT1000 |
1000 Ω at 0 °C |
Accuracy |
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PT-sensors |
IEC751 Class A |
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±(0.15 K +0.2% • |t|) (t in °C) |
Sensitivity |
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PT100 |
≈ 0.385 Ω / K |
PT1000 |
≈ 3.85 Ω / K |
Electrical Data |
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Measuring current |
1mA |
Insulation resistance |
≥ 100 MΩ at 20°C (500 Vdc) |
Circuit type |
3-wire connection |
Cable connection |
via PG11 and screw terminals |
Protection Class |
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Protection class |
IP65 |
•Cost-effective universal temperature sensors.
•High accuracy due to Class A restrictions.
•High protection class (IP65).
•Duct and immersion sensors including immersion well and/or mounting flange.
•Easy installation.
•Universal solution for industry and HVAC.
The ALF, TF, KF, and RF temperature sensors are designed for universal use in machine construction, process control, HVAC, as well as for environmental and agricultural applications. Cost-effective and highly accurate sensor technology allows use in a wide field of applications where PT100 and PT1000 sensor technology is a standard.
® U.S. Registered Trademark
Copyright © 2005 Honeywell Inc.
All Rights Reserved
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sensor temp. |
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OS no. |
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description |
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sensor |
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range |
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ALF21 |
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surface sensor |
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-30...+110 °C |
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PT100 |
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ALF31 |
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surface sensor |
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-30...+110 °C |
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PT1000 |
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TF21 |
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immersion sensor* |
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-30...+150 °C |
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PT100 |
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TF31 |
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immersion sensor* |
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-30...+150 °C |
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PT1000 |
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KF21 |
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air duct sensor* |
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-30...+150 °C |
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PT100 |
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KF31 |
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air duct sensor* |
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-30...+150 °C |
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PT1000 |
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RF21 |
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room sensor |
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-50...+80 °C |
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PT100 |
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RF31 |
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room sensor |
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-50...+80 °C |
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PT1000 |
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*Temperature range of plastic housing: -35...+80 °C
EN0B-0472GE51 R0105
ALF, TF, KF, and RF High-Accuracy Immersion, Duct, Room, and Surface Temperature Sensors
Wire the temperature sensor in accordance with the overall wiring circuit diagram. The terminals are insensitive to polarity; thus, even if the wires are connected in reverse, no malfunction will occur. In order to minimize the influence of EMC, keep wiring to the controller as short as possible. ALF, TF, KF, and RF sensor series are 3-wire types and thus compensate the influence of cable lengths. However, if the controller does not support 3-wire connection, they can also be used in a 2-wire manner (connect 1-3).
66
35
PG11 |
0.5 |
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Special surface sensor elastically supported
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Fig. 3. ALF21, ALF31 dimensions (in mm)
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Fig. 1. 1 x 3-wire circuit |
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6 58
PG11 |
35 |
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64 |
Fig. 4. RF21, RF31 dimensions (in mm)
All PT1000 sensors can be used together with SmartTemp evaluation module TST...EPT1K.
All sensors can be used together with the APT600 and APT650 programmable temperature displays.
64x58
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PG11
6
TF21/31 = 150 mm
KF21/31 = 250 mm
Fig. 2. TF21, TF31, KF21, KF31 housing dimensions (in mm)
3.2
5.1 19.5
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2.5 |
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8 |
Fig. 5. KF21, KF31 mounting flange dimensions (in mm)
G1/2 |
SW27 |
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8 |
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150 mm |
14 |
EL |
M4 |
EL+13 |
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pressure rating for immersion well PN25
Fig. 6. TF21, TF31 immersion well dimensions (in mm)
Fema Controls Honeywell GmbH
P.O. Box 1254 D-71099 Schönaich
Phone: (49) 7031-637-02 Fax: (49) 7031-637-850 http:/honeywell.de/fema
Subject to change without notice. Printed in Germany |
Manufacturing location certified to |
EN0B-0472GE51 R0105