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ACI A/100 Series A/1K Series Platinum RTD Temperature Sensors

Platinum RTD Temperature Sensors
A/100 Series A/1K Series

The A/100 and A/1K Series temperature sensors incorporate a Class A, Thin Film Platinum RTD sensor which conforms to DIN-IEC-751 platinum RTD standards. These sensors are available in either two or three-wire configurations, incorporating high accuracy and interchangeability throughout a wide operating temperature range. 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, Stainless Steel Duct and Duct without Box, Immersion, Stainless Plate, Raw, Bendable Copper and Stainless Steel Rigid Averaging, Strap-On, Bullet Probe and Outdoor Air Configurations. All ACI Room sensors may be ordered with an optional setpoint (see chart on the following page), override, or with a 4 pin RJ11 or 6 pin RJ12 communication jack with terminal blocks, for remote programming. These units are also available with a 1/8 RS232 Stereo Jack.

• Double Potting Process to avoid Moisture Issues
• European enclosure for outside air
• Class A Standard exceeds most specifications
• Four-way Airflow design for wall mount
• Can be used with a transmitter to provide a 4 to 20mA signal Applications:
• DDC Systems
• Refrigeration Systems
• OEM / Industrial
• Light Industrial

Select a link under the "item" tab below to order.

Table 1Table 2Table 3Table 4Table 5Table 6Table 7
Table 1 Sensor
1K 1K
Table 2 # Wires
2W (2-Wire)
3W (3-Wire)
Table 3 Configuration
R2 Room
R2S Room w/ Setpoint
R2O Room w/ Override
R2SO Room w/ Setpoint & Override
D Duct 4”, 8”, 12”, 18”, 24”
DO Duct without box 4”, 8”, 12”, 18”
I Immersion³ 2.5”, 4”, 6”
A Bendable Copper Averaging 12’, 24’
RA Rigid Averaging 18”, 24”, 36”
S Strap On³
O Outdoor Air
SP Stainless Plate
BP Bullet Probe
W Raw
W-6’ Raw Sensor w/6’Leads
BBS Brass Button Sensor
SBS Stainless Button Sensor
Table 4 Communication Jack¹
RJ4 4 Pin RJ11
RJ6 6 Pin RJ12
RS232 Stereo Jack
Table 5 Pot Value¹
400 400
1K 1K
2K 2K
3K 3K
5K 5K
8.5K 8.5K
10K 10K
20K 20K
100K 100K
Table 6 Setpoint Indicator¹
Cool / Warm
55 to 85 55 to 85
Cool / Warm
10 to 30° C10 to 30° C
Table 2 Display¹
DF LCD Display (Degrees F)
DC LCD Display (Degrees C)
Output: 100 Ohms @ 32oF (0oC)
1K Ohms @ 32oF (0oC)
Accuracy: +/- 0.06% @ 32oF (0oC) Single Point
+/- 1.0 Ohm @ 70oF (Averaging)
Stability: less than +/- 0.1oC drift
Repeatability: +/-0.2oC (+/-0.36oF)
Operating Temp Range:
Single Point: -58 to 392oF (-50 to 200oC)
Continous Element Averaging: -50 to 275oF (-45.5 to 134.8oC)
Temp. Coefficient: 0.00385 Ohm/Ohm/oC
Standardization: DIN-IEC-751(formerly DIN 43760)
Resistance: +/- 0.06% Class A (Standard)
Characteristics: +/- 0.12% Class B (Averaging)
For sensors with Display option, see the LCD Series cut sheet

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