Humidity Sensors
H7625, H7635, and H7655 Humidity and Temperature Transmitters
H7625A H7655A
H7635A
H7625B
H7635B,C
H7655B
The H7625, H7635, and H7655 are highly accurate, stable humidity transducers designed for use with HVAC controllers such as the T7350 Thermostat, T775U Remote Humidity Controller, and W7760 Direct Digital Controllers. The Ceramic Technology humidity sensor is not affected by condensation and provides excellent long-term stability.
•Ceramic Technology overcomes the limitations of other resistance based humidity sensors that use water soluble polymer coatings.
•Ceramic Technology allows sensors to recover fully from condensation, fog, and high humidity.
•Highly accurate, repeatable, stable output with negligible hysteresis.
•Temperature compensated output.
•Zero and span trimmers, and increment/decrement recalibration feature.
•All units have selectable 4-20 mA, 0-10 Vdc, or 0-5 Vdc output.
•NIST traceable 2%, 3%, and 5% calibration, every sensor calibrated at 3 different points.
•All humidity sensors use the same enclosure as the T7770 sensor, except the H7655A, which uses the T7047-like enclosure.
Application: Humidity and Temperature |
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Operating Temperature Range: -10 to 140 F (23 to 60 C) |
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Dimensions, Approximate: 4 9/16 in. high, 3 in. wide, 7/8 in. deep |
H7625A only: 32 to 122 F (0 to 50 C) |
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(116 mm high, 76.5 mm wide, 22 mm deep) |
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Shipping Temperature Range: -40 to 160 F (-40 to 71 C) |
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Voltage: 18 – 40 VDC / 18 - 28 VAC |
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Operating Humidity Range (% RH): 0 to 95% RH non-condensing |
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H7625A only: 0 to 100% RH |
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Application |
Accuracy |
Temperature |
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Product Number |
Type |
(% RH) |
Output |
Humidity Output |
Comments |
Used With |
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H7625A010/U |
Wall mount |
± 2% from |
20K ohm NTC |
4-20mA, 0-5Vdc, or |
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Excel 10, Excel 15, T7350 |
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20-95% RH |
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0-10Vdc selectable |
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H7625B2006/U |
Duct mount |
± 2% from |
20K ohm NTC |
4-20mA, 0-5Vdc, or |
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Excel 10, Excel 15, T7350 |
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20-95% RH |
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0-10Vdc selectable |
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H7626A2020/U |
Wall mount |
± 2% from |
1097 ohm at 77F |
4-20mA, 0-5Vdc, or |
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Excel 10, Excel 15, T7350, |
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20-95% RH |
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0-10Vdc selectable |
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T775 Series 2000 |
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H7626B2024/U |
Duct mount |
± 2% from |
1097 ohm at 77F |
4-20mA, 0-5Vdc, or |
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Excel 10, Excel 15, T7350, |
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20-95% RH |
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0-10Vdc selectable |
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T775 Series 2000 |
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H7635A2012/U |
Wall mount |
± 3% from |
20K ohm NTC |
4-20mA, 0-5Vdc, or |
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Excel 10, Excel 15, T7350 |
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20-95% RH |
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0-10Vdc selectable |
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H7635B2018/U |
Duct mount |
± 3% from |
20K ohm NTC |
4-20mA, 0-5Vdc, or |
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Excel 10, Excel 15, T7350 |
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20-95% RH |
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0-10Vdc selectable |
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H7635C2015/U |
Outdoor |
± 3% from |
20K ohm NTC |
4-20mA, 0-5Vdc, or |
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Excel 10, Excel 15, T7350 |
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mount |
20-95% RH |
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0-10Vdc selectable |
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H7636A2022/U |
Wall mount |
± 3% from |
1097 ohm at 77F |
4-20mA, 0-5Vdc, or |
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Excel 10, Excel 15, T7350, |
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20-95% RH |
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0-10Vdc selectable |
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T775 Series 2000 |
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H7636B2026/U |
Duct mount |
± 3% from |
1097 ohm at 77F |
4-20mA, 0-5Vdc, or |
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Excel 10, Excel 15, T7350, |
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20-95% RH |
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0-10Vdc selectable |
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T775 Series 2000 |
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H7655A1001/U |
Wall mount |
± 5% from |
none |
0-10Vdc |
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Uses different enclosure (same as |
Excel 10, Excel 15, T7350 |
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30-70% RH |
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T7047 Sensor). Polymer |
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capacitance humidity sensor |
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H7655B2014/U |
Duct mount |
± 5% from |
20K ohm NTC |
4-20mA, 0-5Vdc, or |
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Excel 10, Excel 15, T7350 |
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25-95% RH |
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0-10Vdc selectable |
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H7656B2029/U |
Duct mount |
± 5% from |
1097 ohm at 77F |
4-20mA, 0-5Vdc, or |
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Excel 10, Excel 15, T7350, |
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25-95% RH |
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0-10Vdc selectable |
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T775 Series 2000 |
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<![endif]>Commercial
<![if ! IE]><![endif]>Components
70-6910 |
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