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Thermistor Temperature Sensors
ACI/10K-CSI Series



Product Description:

The ACI/10K-CSI Series temperature sensors are thermistor type sensors. These sensors provide a predictable output over a specified temperature range to meet each manufacturers required input values.

Thermistors offer high accuracy and interchangeability over a wide temperature range.

The thermistors's high resistances relative to Platinum RTD's create a larger signal with the same measuring current, negating most lead wire resistance problems and eliminating the need for signal conditioners.

These units are offered in Room, Room with Set Point, Room with Override, Room with Setpoint and Override, and Room with Setpoint, Override, and RJ11 Jack; Duct, Duct without Box, Immersion, Stainless Plate, Raw, Averaging, Strap-On, Bullet Probe, Averaging, and Outside Air Configurations.

Setpoint options include a linear 400 Ohm, 1K, 2K, 5K, 10K, 20K, or 100K potentiometer. An optional series resistor allows for any offset of the setpoint potentiometer. These may be either Direct or Reverse Acting.

Indication stickers for setpoint include Cool|Warm, 55 to 85, and 10 to 30°C. Others are available upon request.

Override options include a N/O switch in parallel with the sensor or a separate 2 pole terminal block for tenant override.

All ACI sensors also come with optional 4 or 6 pin RJ11 communication jacks with terminal blocks for remote programming or an RS232 Communication Jack.

Product Specifications:
Output 10,000 Ohms @ 77°F (25°C) Dissipation Constant 3mW /°C
Temp. Range -40 to 302°F (-40 to 150°C) Accuracy+/- 0.2°C (0 to 70°C)
Interchangeability +/- 0.2°C (0 to 70°C) Operating Humidity 10 to 90% RH non-condensing
Power Requirements 5 VDC excitation via 10K Thermistor

RoomOutside Stainless Plate
Duct/ImmersionAveraging-12', 24'
Strap OnBullet Probe
Duct without Box


Ordering Information:
Sensor Configuration Pot ValueSetpoint Sticker Pot Action
ACI/ -[] -[]-[] -[]-[]
10K-CSI R-Room 400 Ohms 55 to 85(DA) Direct Acting
RS-Room w/Setpoint 1K Ohms Cool/Warm(RA) Reverse Acting
RO-Room w/Override 2K OhmsSpecify
RSO-Room w/Setpoint & Override 10K Ohms
RSO-RJ11- Room w/Setpoint, Override and RJ1120K Ohms
D-Duct-4", 8", 12",18" 100K Ohms
DO-Duct without Box-4", 8", 12", 18"
I-Immersion 4", 8" Specify
A-Averaging 12', 24'
S-Strap On
O-Outside Air
SP-Stainless Plate


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Last Updated 03/18/10