Technical Specification
Power Supply | Voltage | 24 V AC/DC ± 20% |
|---|---|---|
Power consumption | iSMA-B-LP(-1): 0.5 W (24 V DC), 0.75 VA (24 V AC) iSMA-B-LP-H(-1): 0.5 W (24 V DC), 0.75 VA (24 V AC) iSMA-B-LP-C(-1): 0.7 W (24 V DC), 1 VA (24 V AC) iSMA-B-LP-HC(-1): 0.7 W (24 V DC), 1 VA (24 V AC) | |
Built-in Sensors | Temperature sensor | 10k NTC type Accuracy: ±0.5˚C Range: 0-50˚C Resolution: ±0.1˚C |
Humidity sensor | Range: 0-100% RH Accuracy: ±2% RH in range 20-80% RH Resolution: ±1% RH | |
CO2 sensor | Method Non Dispersive Infrared (NDIR), gold plated optics, diffusion sampling (with Telaire’s Patented ABC Logic Self Calibrated Algorithm) Range: 400-2000 ppm Accuracy: ±30 ppm OR ±3% of reading Stability: <2% of FS over life of sensor (15 years typical) Warm-up Time : <2 minutes (operational); 10 minutes (maximum accuracy) Calibration: ABC Logic Algorithm Manual Calibration Interval: Not required | |
RS485 Interface | Communication protocols | Modbus RTU, Modbus ASCII, BACnet MS/TP |
Baud rate | From 2400 to 115200 bps | |
USB | USB | Mini USB, type B |
Environment | Ingress protection | IP20 |
Temperature | Storage | -40˚C to +85˚C |
Operating | 0˚C to +50˚C | |
Humidity | Relative | 5% to 95% |
Platform | ARM Cortex-M0+ | |
Housing | Construction | Plastic, self-extinguishing (PC/ABS) |
Wall mounting | Standard electric box | |
Cooling | Internal air circulation | |
Dimensions | Width | 100.00 mm |
Length | 27.00 mm | |
Height | 123.00 mm |