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Thermistors Room
20,000 Ohm Thermistor, Room (R2)
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- Space temperature sensing with decorative wall mount styling
- Four-way air flow design to minimize self heating
- Ideal for office/commercial buildings, schools/colleges
- Common for OEM opportunities
A/20K-R2 Model Options
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Accuracy
Sensor Output
Category
Operating Temperature Range
Sensor Application
Response Time
Number Sensing Points
Set Point Tolerance
Operating Humidity Range
The ACI Thermistor Room Series combines option flexibility with attractive styling in the R2 style enclosure which includes four-way air flow design to minimize self-heating to the sensor. These units are designed to be mounted over a single gang junction box or hole in the wall using drywall anchors. Screw terminal blocks are available for making all
connections to your building management system (network).
Applications: Space Temperature Sensing, Decorative Wall Sensor Applications, Office Buildings, Schools, Colleges, Commercial Buildings, OEM Opportunities
For more information Please visit www.workaci.com
Product specifications - HIGH ACCURACY
| Sensor Type: | Thermistor |
| Sensor Curve: | Non-Linear, NTC (Negative Temperature Coefficient) |
| Accuracy 0-70ºC (32-158ºF): | +/- 0.2°C (+/-0.36°F) A/10K-E1 Series: +/-0.3°C (+/-0.54°F) A/1.8K Series: +/-0.5°C @ 25°C (77°F) and +/-1.0°C (+/-1.8°F) |
| Stability: | Sensor Dependent; Contact ACI for more information on specific sensor |
| Response Time (63% Step Change): | 10 Seconds nominal |
| Power Dissipation Constant: | 3 mW/°C A/1.8K Series: 1 mW/°C A/10K-E1 Series: 2 mW/°C |
| LCD Display Supply Voltage: | +9 to 35 VDC / 24 VAC (50-60 Hz) < 4 mA / 0.12 VA |
| LCD Display Accuracy: | +/- 2°F or +/- 2°C @ 71°F (21.5°C) Typical |
| LCD Display Descriptor | Number of Digits: | °F (Fahrenheit) or °C (Celsius) | 3 1/2 Segment Display |
| LCD Display Life Expectancy: | 50,000 Hours Minimum |
| Set Point Tolerance: | +/- 10% of Range |
| Override Option: | Short Thermistor (Default); Field (Jumper) Selectable “Dry Contact” Closure (Separate Input); Short Set Point available upon request |
| Operating Temperature Range: | 1.5 to 50°C (35 to 122°F) |
| Storage Temperature Range: | Non-LCD: -40 to 65°C (-40 to 149°F) LCD Display: -10 to 65°C (14 to 149°F) |
| Operating Humidity Range: | 10 to 95%RH, non-condensing |
| Connections | Wire Size: | Screw Terminal Blocks | 16 (1.31 mm) to 26 (0.129 mm) AWG |
| Terminal Block Torque Rating: | 0.5 Nm (minimum); 0.6 Nm (maximum) |
| Enclosure Material | Color: | “-R2” Enclosure: ABS Plastic | White, UL94-HB “R” Enclosure: ABS Plastic | Beige UL94-HB |
Product specifications - STANDARD ACCURACY
| Sensor Type: | Thermistor |
| Sensor Curve: | Non-Linear, NTC (Negative Temperature Coefficient) |
| Accuracy 0-70ºC (32-158ºF): | +/- 0.2°C (+/-0.36°F) |
| Stability: | Sensor Dependent; Contact ACI for more information on specific sensor |
| Response Time (63% Step Change): | 10 Seconds nominal |
| Power Dissipation Constant: | 3 mW/°C |
| LCD Display Supply Voltage: | +9 to 35 VDC / 24 VAC (50-60 Hz) |
| LCD Display Current: | < 4 mA / 0.12 VA |
| LCD Display Accuracy: | +/- 2°F or +/- 2°C @ 71°F (21.5°C) Typical |
| LCD Display Descriptor | Number of Digits: | °F (Fahrenheit) or °C (Celsius) | 3 1/2 Segment Display |
| LCD Display Life Expectancy: | 50,000 Hours Minimum |
| Set Point Tolerance: | +/- 10% of Range |
| Override Option: | Short Thermistor (Default); Field (Jumper) Selectable “Dry Contact” Closure (Separate Input); Short Set Point available upon request |
| Operating Temperature Range: | 1.5 to 50°C (35 to 122°F) |
| Storage Temperature Range: | Non-LCD: -40 to 65°C (-40 to 149°F) LCD Display: -10 to 65°C (14 to 149°F) |
| Operating Humidity Range: | 10 to 95%RH, non-condensing |
| Connections | Wire Size: | Screw Terminal Blocks | 16 (1.31 mm) to 26 (0.129 mm) AWG |
| Terminal Block Torque Rating: | 0.5 Nm (minimum); 0.6 Nm (maximum) |
| Enclosure Material | Color: | “-R2” Enclosure: ABS Plastic | White, UL94-HB “R” Enclosure: ABS Plastic | Beige UL94-HB |
