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 4800 to 115200 bps | |
USB | USB | Mini USB, type B |
Environment | Ingress Protection | IP40 |
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 mm |
Length | 27 mm | |
Height | 123 mm |