Honeywell T7425A, T7425B User Manual
T7425A,B
IMMERSION TEMPERATURE SENSOR
GENERAL
The T7425A,B Immersion Temperature Sensor is used in heating, cooling or domestic hot water applications requiring fast response temperature measurement.
TYPES
OS no. |
Description |
Sensing range |
|
T7425A1005 |
sensor element: NTC20kΩ |
-20...+140 °C |
|
sensor length: 75 mm |
(-4...+284 °F) |
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|
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T7425A1013 |
sensor element: NTC20kΩ |
-20...+140 °C |
|
sensor length: 220 mm |
(-4...+284 °F) |
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T7425A1021 |
sensor element: NTC20kΩ |
-20...+140 °C |
|
sensor length: 300mm |
(-4...+284 °F) |
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T7425B1011 |
sensor element: PT1000 |
-20...+300 °C |
|
sensor length: 75 mm |
(-4...+572 °F) |
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T7425B1029 |
sensor element: PT1000 |
-20...+300 °C |
|
sensor length: 220 mm |
(-4...+572 °F) |
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|
PRODUCT DATA
FEATURES
•Fast response time
•Operating range of -20...+140 °C (T7425A) or -20...+300 °C (T7425B)
•Easy installation
•Adjustable well length
•Stainless steel body material
SPECIFICATIONS
Nominal value |
|
T7425A (NTC20kΩ) |
20 kΩ at 25 °C |
T7425B (PT1000) |
1000 Ω at 0 °C |
Accuracy |
|
T7425A (NTC20kΩ) |
0.3 K +1% • |t - 25 °C| (t in °C) |
T7425B (PT1000) |
IEC751 Class B |
|
0.3 K +0.5% • |t| (t in °C) |
Sensitivity
T7425A (NTC20kΩ) ≈ -934.5 Ω / K at 25 °C (non-linear)
T7425B (PT1000) |
≈ 3.85 Ω / K |
Response time |
τ0.5 = 2 seconds (T7425A) |
|
τ0.5 = 2.5 seconds (T7425B) |
Well |
|
Pressure rating |
PN16 (nominal) |
Maximum medium velocity |
|
75 mm length |
20 m/s |
220 mm length |
10 m/s |
300 mm length |
7 m/s |
Medium |
Mineral and synthetic oil, |
|
glycol-water mixture, domestic |
|
hot water, swimming pool water |
Material |
Stainless steel, 1.4571 |
Dimensions |
ø 4 mm, length ~ 75/220/300 mm |
Outlet size |
R1/2“ |
Tightening torque |
10 ±2 Nm, 10-mm wrench |
Cable |
|
Length |
2.5 m |
Protection class |
IP 65 |
EN0B-0117GE51 R0902 107157280
T7425A,B
ELECTRICAL CONNECTION
The wiring of the temperature sensor must be in accordance with the overall wiring circuit diagram. The terminals are not polarized; thus, even if the wires are connected in reverse, no malfunction will occur.
DIMENSIONS |
|
|
|
75 or 220 or 300 |
|
|
|
41 or 186 or 266 |
10 Nm |
|
16 |
SW22 |
|
|
|
|
|
SW10 |
|
R 1/2” |
PTFE |
|
|
|
40 |
25/170/250 |
Control Products
Honeywell AG
Böblinger Straβe 17
D-71101 Schönaich
Phone: (49) 7031 63701
Fax: (49) 7031 637493
http://europe.hbc.honeywell.com
Subject to change without notice. Printed in Germany |
Manufacturing location certified to |
EN0B-0117GE51 R0902 107157280
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