Honeywell |
Honeywell |
°C
20 25
15
30
Honeywell |
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GENERAL
The T7412A,B,C,D,E Room Temperature Sensors are used for room temperature measurement and remote control-point adjustment (CPA) or remote setpoint adjustment (SPA) in heating, ventilating and air conditioning systems.
Models are available with PT1000, PT100, NTC 20kΩ, or BALCO 500 sensing elements and with or without remote control or setpoint adjustment.
They are suitable for the following control systems:
•Excel IRC
•Excel Plus and High Performance Excel Plus
•Excel EMC
•Excel 5000
•Excel Classic
•MicroniK 100 and MicroniK 200
or other systems using PT1000, PT100, NTC 20kΩ, or BALCO 500 sensing elements.
As a passive product, this sensor is not subject to the requirements of CE.
T7412A,B,C,D,E
ROOM TEMPERATURE SENSOR
PRODUCT DATA
FEATURES
•PT1000, PT100, NTC20kΩ, or BALCO 500 temperature sensing element
•Sensing range 0...50 °C (32...122 °F)
•High-precision sensor elements
•Attractive housing
•Occupied/unoccupied slide switch
•Fan speed switch
•Push-button for time extension or other purposes and LED for status indication
SPECIFICATION
Ambient Limits
Operating temperature Transport and storage temp. Humidity
Safety
Protection class Protection standard Flame retardant housing Housing
Dimensions (H x W x D)
Weight
Mounting
Connections
Screw terminals
Potentiometer/Switches
CPA/SPA potentiometer circuit Occupancy switch or extend push-button
Occupancy
-occupied
-unoccupied Fan speed switch
-auto-OFF-I-II-III
0...50 °C (+32...+122 °F) -25...+70 °C (-13...+158 °F) 5...95%rh, non-condensing
II IP30 V0
Plastic (ABS) 130 x 80 x 34 mm
(5.12 x 3.15 x 1.34”)
100 g
Wall, surface, or European outlet box
for 2x1.5 mm2 conductors
see Fig. 1 on page 3
Potential-free contact
closed < 100Ω open > 40kΩ Resistor Network
® U.S. Registered Trademark |
EN0B-0240GE51 R1009 |
Copyright © 2009 Honeywell Inc. • All rights reserved |
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T7412A,B,C,D,E ROOM TEMPERATURE SENSOR
Temperature Sensor |
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Sensing element |
PT1000, PT100, BALCO 500, |
|
NTC 20kΩ |
Characteristic |
see EN0B-0476GE51 for |
|
characteristic |
Sensing range |
0...+50 °C (+32...+122 °F) |
Response time |
τ0.5 ≈ 2.5 min |
Resistance |
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PT1000 |
1000Ω at 0 °C |
PT100 |
100Ω at 0 °C |
BALCO 500 |
500Ω at 23.3 °C |
NTC 20kΩ |
20kΩ at 25 °C |
Sensitivity |
|
PT1000 |
≈ 3.85Ω / K |
PT100 |
≈ 0.385Ω / K |
BALCO 500 |
≈ 2Ω / K |
NTC 20kΩ |
non-linear characteristic |
Accuracy |
|
PT1000 / PT100 |
DIN IEC 751 Class B |
|
0.3 K + 0.5% • t (t in °C) |
BALCO 500 |
±1Ω at 23.3 °C |
NTC 20kΩ |
0.3 K at 25 °C |
Order Numbers
OS no. |
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temperature sensing element* |
T7412A1000 |
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NTC 20kΩ |
T7412A1018 |
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PT1000 |
T7412A1026 |
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BALCO 500 |
T7412A1059 |
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PT100 |
T7412B1008 |
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NTC 20kΩ + CPA |
T7412B1016 |
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PT1000 + CPA |
T7412B1024 |
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BALCO 500 + SPA 15...30 °C |
T7412B1040 |
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PT1000 + SPA 15...30 °C |
T7412B1057 |
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PT1000 + CPA |
T7412C1006 |
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NTC 20kΩ + CPA + occ./unoccupied switch |
T7412C1030 |
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PT1000 + CPA and occ./unoccupied switch |
T7412D1004 |
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NTC 20kΩ + CPA + Fan Speed Switch |
T7412E1001 |
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NTC 20kΩ + push-button + C-Bus |
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connector |
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T7412E1027 |
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NTC 20kΩ + push-button + indication LED |
For potentiometer values and circuits, see Fig. 1.
* Other temperature sensing elements and different housing colors are available, upon request.
Models
model no. / function
T7412A |
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T7412B |
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T7412C |
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T7412D |
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T7412E |
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temperature sensor |
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remote setpoint |
control-point adjustment |
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occupancy extend |
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adjustment |
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push-button |
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occupied/ |
fan speed switch |
LED or PIT C-Bus |
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unoccupied switch |
connector |
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Honeywell |
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°C |
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°C |
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auto 0 12 3 |
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20 |
25 |
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°C |
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°C |
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15 |
30 |
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EN0B-0240GE51 R1009 |
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