Honeywell C7750, C7770A Catalog Page
Temperature Sensors
C7750 Duct Probe
Excel 10 Controller. The C7750A Sensor consists of a temperature
sensitive 20K ohm thermistor that is connected on a circuit board
to two linearizing resistors in series-parallel configuration.
• A primary and/or secondary sensor for use with electronic control
systems.
• Designed with an integral linearized 20K ohm thermistor.
• Operating range of 45 to 99 F (7.2 to 37.2 C).
• Intended for mounting on a flat duct or plenum surface or (for a
plenum-rated application) in a standard utility conduit box.
• Probe length of 6-1/2 in. (165 mm) and a nominal sensor resistance
The C7750A is a direct wired temperature sensor that is used to
sense discharge or return air in a duct that may be controlled by an
Application: Primary and/or secondary sensors in electronic control
systems
Dimensions, Approximate: 1 in. high x 2 in. wide x 7 in. deep
(25 mm high x 51 mm wide x 177 mm deep)
Operating Temperature Range: 45 F to 99 F (7 C to 37 C)
Insertion Length
Product Number Sensor Type
C7750A3006/U 20 K ohm NTC linear 6 in. 152 mm 20 K ohm NTC linear Temperature Sensor, used with Excel 10, Series 1000 only
Description(inch) (mm)
of 8000 ohms at 77 F (25 C).
• Rugged aluminum insertion probe.
Shipping Temperature Range: -40 F to +150 F (-40 C to +65 C)
Operating Humidity Range (% RH): 5 to 95% RH, non-condensing
Mounting: Mounts on flat duct or plenum surface with integral mounting
flange or in a 2 in. x 4 in. (51 mm x 102 mm) junction box.
Used With: Excel 10, W7751
C7770A Duct Probe
The Sensors contain a temperature sensitive 20K ohm NTC
nonlinearized thermistor and are compatible with the Excel 10
controller.
• Primary and/or secondary sensor for use with electronic control
systems.
• Integral 20K ohm NTC nonlinear sensors
• Operating range of 45 to 99 F (7 to 37 C).
• Mounts on a flat duct or plenum surface or, for a plenum-rated
application, in a standard utility conduit box.
• Probe length of 6 in. (152 mm)
The C7770 Temperature Sensors are direct wired temperature
sensors that are used to sense discharge or return air in a duct.
Application: Primary and/or secondary sensors in electronic control
systems
Dimensions, Approximate: 1 in. high x 2 in. wide x 7 in. deep
(25 mm high x 51 mm wide x 177 mm deep)
Operating Temperature Range: 45 F to 99 F (7 C to 37 C)
• Rugged 1/4 in. diameter aluminum insertion probe.
Shipping Temperature Range: -40 F to +150 F (-40 C to +65 C)
Operating Humidity Range (% RH): 5 to 95% RH, non-condensing
Mounting: Mounts on flat duct or plenum surface with integral mounting
flange or in a 2 in. x 4 in. (51 mm x 102 mm) junction box.
Used With: Excel 10, W7751
Commercial
Components
Insertion Length
Product Number Sensor Type
C7770A1006/U 20 K ohm NTC non-linear 6 in. 152 mm 6 in. Duct Probe for Return Air 20 K ohm NTC non-linear
C7770A1040/U 20 K ohm NTC non-linear 6 in. 152 mm 6 in. Duct Probe for Return Air 20 K ohm NTC non-linear
Description Comments(inch) (mm)
Temperature Sensor
Temperature Sensor
70-6910 465
—
6 foot plenum rated
cable
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