S900

Summary

Product identification

• Series: 900 Transmitter / Controller
• Sensor Heads: Ozone (Low, High, Leak), VOC, Ammonia, CO

Operating limits

• Operating temperature range (Sensor head and base unit): -5°C to 50°C; 23°F to 122°F
• Relative humidity limit (Sensor head and base unit): 95% maximum

Ozone Sensor Heads

• Low Measurement range: 0.000 - 0.500 ppm
• Low Accuracy: < 0.008 ppm (0 - 0.100 ppm); ± 10% (0.100 – 0.500 ppm)
• Low Resolution: 0.001 ppm
• Low T90 Response: < 60 seconds
• High Measurement range: 0.50 - 20.00 ppm
• High Accuracy: ± 10% (0.20 - 2.00 ppm); ± 15% (2.00 - 20.00 ppm)
• High Resolution: 0.01 ppm
• High T90 Response: < 35 seconds
• Leak Measurement range: 0.00 - 50.00 ppm
• Leak Accuracy: ± 20%, 15 seconds after Reset
• Leak Resolution: 0.01 ppm
• Leak T90 Response: < 10 seconds
• Sensor type: Gas-sensitive semiconductor

VOC Sensor Head Specification

• Measurement range: 0 to 400 ppm toluene
• Accuracy: < +/- 10 ppm (0 – 200 ppm); < +/- 10% ( > 200 ppm)
• T90 response: < 60 s
• Sensor type: Gas-sensitive semiconductor
• Operating temperature range: -20°C to 60°C
• Operating relative humidity range: 5 to 95% non-condensating

Ammonia Sensor Head Specification

• Measurement range: 0 to 1000 ppm
• Accuracy: < +/- 5 ppm (0 – 100 ppm); < +/- 10% (100 – 1000 ppm)
• T90 response: < 60 s
• Sensor type: Gas-sensitive semiconductor
• Operating temperature range: -20°C to 60°C
• Operating relative humidity range: 5 to 95% non-condensating

CO Sensor Head Specification

• Measurement range: 0 to 2000 ppm carbon monoxide
• Accuracy: < +/- 10 ppm in the range 0 to 400 ppm
• T90 response: < 150s
• Sensor type: Gas-sensitive semiconductor
• Operating temperature range: 0°C to 70°C
• Operating relative humidity range: 5 to 95% non-condensating

Electrical

• Power (user supplied): Regulated 12 VDC, 800 mA
• Analogue output: 4-20 mA (opto-isolated), 10-30 V
• External signal type: Transistor Output
• External signals: 4
• External signal functions: Low Alarm, High Alarm, Control & Diagnostics
• Inputs: Standby toggle
• Communication: RS485
• RS485 protocol: Aeroqual proprietary product

Mechanical / hydraulic

• Removable / replaceable sensor head: Yes
• Enclosure rating: IP20 & NEMA 1 equivalent
• Enclosure size (with base unit): 64 H x 130 Ø (mm); 2½ H x 5⅛Ø (in)
• Mounting: Screw fixture
• Weight: < 200 g; < 7 oz

Controls and Configuration

• Jumpers: J1, J2, J3 termination resistors
• Connectors: Screw
• ID: 1 (Default); User configurable from 1 - 255
• Alarm set points (2): User configurable
• Control set point: User configurable

Approvals

• Base Unit: Part 15 of the FCC Rules, EN 50082-1: 1997, EN 50081-1: 1992
• CO Sensor Head: UL 2034, BS 7860

Disclaimer: This extraction may miss figures, footnotes, or revisions. Contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror