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AQ-Alert+ CO2 Air Quality Monitor

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Specification

TECHNICAL SPECIFICATIONS

Supply Voltage (Vs) 24Vdc +/-10%
Current Consumption¹ 250mA max.
Sensors (up to five) CO₂
O₂
Temperature (T)
Relative humidity (Rh)
Atmospheric pressure (P)

Analogue Output (up to three) 4-20mA; load 500Ω max.
0-5Vdc; load 10kΩ max.
0-10Vdc; load 10kΩ max.
1-5Vdc; load 10kΩ max.
Communications (one) RS232
or RS485 (Modbus RTU)
Relay Outputs (up to three) 37.5VA, 250Vac max.
Alarms Visual: LEDs; traffic light sequence
Audio: Buzzer; 70dB at 4kHz

SENSOR OPTIONS

Sensor Measurement Range Accuracy Resolution
O₂ 0-25%² 1% vol.O₂ 0.01% vol. O₂
CO₂ 0-5000ppm
0-10000ppm
+/-70ppm
+/-5% of reading³
1ppm
Temperature 0-50⁰C +/- 2⁰C 0.1⁰C
Humidity 0-95% Rh non-condensing +/- 3% 0.1%
Pressure 750-1150mbar Rh +/- 5 mbar 1mbar

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OUTLINE DRAWINGS

AQalert_dwg

¹All possible sensor and output options fitted.
²Prolonged operation below 0.1% O₂ will damage the sensing element.
³Whichever is greater.

Features & Benefits

FEATURES

  • Monitors and controls air quality in any building
  • Multi-gas monitoring system
  • Wall mounted design
  • Can be operated in three modes; stand alone, direct control or integrated into a building management system
  • Designed to measure CO₂ and O₂ with options to also measure temperature and humidity and other gases on request

BENEFITS

  • Maintenance free
  • Customer specified outputs (voltage, current, relays, RS2332, RS485 Modbus)
  • Standard or customer specific alarm levels
  • Self calibrating

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