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Carbon Monoxide Sensor/Transmitter
Carbon Monoxide, Electrochemical, 0-250PPM
The Q5 Series smart toxic/combustible gas sensor/transmitters use various sensing technologies to detect a wide assortment of gases. The units are housed in a NEMA 4X enclosure with an integral buzzer that will meet the most stringent of applications.
All Models feature an LCD display of gas concentration, LED indication of each of the SPDT relays and TX/RX for the RS-485 or Modbus communications. Pre-calibrated sensors can be purchased and installed by the user, thereby reducing calibration costs and minimizing downtime. Should a client wish to switch from one gas to another, all that is needed is to purchase a sensor/board and install it. The user can select multiple screens from the menu that display relay status, time, TWA, STEL, concentration, and other data. Programming and calibration is non-proprietary and is accessed through a user-selectable password that protects system integrity. The units can be installed as stand-alone, digitally networked with QEL or other controllers through an RS-485 or Modbus communication port that is standard. Equally a 4-20 mA, 2-10 VDC and a 1-5 VDC analog output that is fully assignable over a chosen range is standard. User-programmable relays and a buzzer are also standard allowing several options to energize relays through instantaneous activation upon a pre-selected concentration or activation through a time-waited average concentration.
Made in Canada.
Technical Data
Applications
- Detects Carbon Monoxide
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| Rainbow Number | Container | Ordering UOM | Units/Case | Case Weight | Case Size |
|---|---|---|---|---|---|
| 75407 | CO Sensor | Each | 1 | 1 lb | 9.5" L x 6.75" W x 6.25" H |
Uses Electrochemical, Catalytic Bead and Infrared Sensors
Pre-calibrated sensors available for easy replacement without calibration
Three on-board user-programmable relays
Non-proprietary set-up and calibration procedures
Removable terminal blocks for easy wiring
Digital display of TWA, STEL, concentration and relay status
Stand-alone operation
Analog communication to BAS or through RS-485 digital communication protocols
Integral buzzer with three tones
NEMA 4X enclosure with knock-outs
Sensor housing sealed from electronics
Duct mount available
Splash guard available
Flow through/calibration cap available
Operates on 24 VAC/VDC
Input Power:
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 Must Not be grounded
Fuse:
F2 on Main Board: Polyswitch 750 mA
Polyswitch resets after Fault 15 cleared and powered up
Sensor:
Combustible Gases: Catalytic Bead
Toxic Gases: Electrochemical, Infrared
Sampling: Diffusion or Pump-through
Panel Indicators:
5 Status LED’s
• RS-485 TX Status (Green)
• RS-485 RX Status (Green)
• Relay 1 Status (Red)
• Relay 2 Status (Red)
• Relay 2 Status (Red)
Display: LCD graphic display c/w backlight
Keypad: 3 Capacitive touch sensing keys: F1, F2, F3
Relays:
3 Relays SPDT, dry contacts
• 1.0 A maximum at 30 VDC (resistive load)
• 0.3 A maximum at 125 VAC (resistive load)
Buzzer: 80 db at 10 cm, 2700 Hz
Buzzer with 3 programmable tones
Output signal:
RS-485 with QEL Controller Protocol Connects to Q4C Controller, M-Controller, and Q-Controller 4-20 mA, 2-10 VDC, 1-5 VDC Analog Signal Output
Enclosure Rating: IP 66 & NEMA 4, 4X, 12 & 13
Operating Temperature: -40° C to 70° C, depends on sensor specification
Ambient Humidity: 5% to 95% RH (non-condensing)
Storage Temperature: 0° C to 40° C, depends on sensor specification
Size: 150 mm x 90 mm x 65 mm
Weight: Less than 0.5 lbs
