Q5 Series – Toxic/Combustible Gas Transmitters -Analog/Modbus

• NEMA 4X/IP66 fire-retardant enclosure with an integral buzzer.
• LCD display for gas concentration and LED indicators for relays and communications.
• Pre-calibrated sensors that can be user-installed to reduce costs and downtime.
• Menu-selectable screens displaying relay status, time, TWA, STEL, and concentration data.
• Non-proprietary programming and calibration accessed via a password.
• Stand-alone or networked installation with RS-485 or Modbus communication.
• Analog outputs (4-20 mA, 2-10 VDC, 1-5 VDC) that are fully assignable.
• User-programmable relays and buzzer for various activation options.
• Duct mount , splash guard and Flow through Calibration cap kits available

• VOLTAGE
  24 VDC Nominal, range 18-30 VDC, 0.3 A DC Total Max
  24 VAC Nominal, range 15-24 VAC, 0.3 A AC Total Max
  AC Power must not be grounded
• FUSE 0.750A Polyswitch
• SUPPLY CURRENT | POWER CONSUMPTION 0.3A maximum | 8.4 VA
• SENSING ELEMENT TECHNOLOGY
  Combustible gases: Catalytic
  Toxic gases and Oxygen: Electrochemical
  Carbon Dioxide: Non-Dispersive Infra-Red (NDIR)
• SENSOR LIFE Combustible gases:
  Catalytic : 5 years
  Toxic gases and Oxygen : Electrochemeical : 2- 5 years typical
  Hydrogen/ Oxygen: Electrochemical: 5 years
  Carbon Dioxide: Non-Dispersive Infra-Red (NDIR)
• ACCURACY ± 2.5% of reading 
• REPEATIBILITY ± 1% of reading
• SHELF LIFE
  Electrochemical (toxic) : 6 months from the date of purchase
  Catalytic (combustible) : 1 Year from date of purchase
• RESPONSE TIME Less than 30 seconds for 90% step change
• COVERAGE AREA (see table of gas in datasheet)
• MOUNTING HEIGHT (see table of gas)
• FACTORY CALIBRATION RANGE (see table of gas)
• DISPLAY LCD graphic display c/w backlight
• PANEL CONTROL Keypad: 3 Capacitive touch sensing keys: F1, F2, F3 
• PANEL INDICATOR 
  5 Status LED’s
  RS-485 TX Status (Green)
  RS-485 RX Status (Green)
  Relay 1 Status (Red)
  Relay 2 Status (Red)
  Relay 3 Status (Red) 
• WARM UP TIME 1 hour
• RELAYS OUTPUTS 
  3 Relays SPDT (Form C), dry contacts
  1.0 A maximum at 30 VDC (resistive load)
  0.3 A maximum at 125 VAC (resistive load) 
• TIME DELAYS 
  Actuation : 0 to 999 seconds
  De-Actuation : 0 to 999 seconds 
• RELAYS LIFE EXPECTANCY 
  Mechanical : 50,000,000 Operations minimum @36000 operations/hours
  electrical : 200000 operations minimum @ rated load
• ANALOG OUTPUTS  4-20mA , 2-10 VDC 1-5 VDC Analog Signal Output 
• DIGITAL OUTPUT RS-485 Modbus RTU/OptoMux (Proprietary GES Controller Protocol) connects to Q4C Controller , M-Controller and Q-Controller
• BAUD RATE 1200, 2400, 4800,9600, 14400, 19200, 28800, 38400, 57600, 76800 Bits/Second (Default: 4800 BPS)
• BUZZER 80 db at 10 cm, 2700 Hz Buzzer with 3 programmable tones
• OPERATING ENVIRONMMENT  Indoor Use only
• OPERATING TEMPERATURE (see table of gas)
• STORAGE TEMPERATURE Storage : 0° C to 40° C, depends on sensor specification 
• OPERATING HUMIDITY 5% to 95% RH non condensing
• OPERATING PRESSURE Atmospheric +/-10%
• ENCLOSURE Plastic Enclosure ,Polycarbonate Lexan, Fire retardant UL94 V-0 IP 66 & NEMA 4, 4X, 12 & 13 
• WIRING 
  12 AWG to 24 AWG for Screw Terminals Blocks(De -Pluggable) ,
  16 AWG or 18 AWG wire for Power supply ( 1km max)
• CABLE SPECIFICATION BELDEN 9841 or equivalent ,120 ohms Input
• DIMENSIONS   5.91’’x 3.54’’ x 2.56’’(150 mm x 90 mm x 65 mm)
• WEIGHT LESS THAN 0.5lbs

Q Series Gas Transmitter datasheet