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O2 Monitor

O2 Monitor
O2 Monitor
Product Code : GM2211
Price And Quantity
Minimum Order Quantity :
Unit of Measure :
Product Specifications
Accuracy :
± 0.25% of full-scale for Gas Monitor mm
Material :
Poly-carbonate, Grey Colour for WP ; Cast Aluminium Alloy, LM 6
Voltage :
90 to 270 VAC; ±20%, 50Hz, Typically 230VAC Biot ( Bi)
Size :
215 mm (H) x 240 mm (W) x 115 mm (D) for WP ; 285 mm (H) x 265 mm (W) x 170 mm (D) For FLP
Weight :
Approx 2.0 Kg. for WP ; Approx 6 Kg. for FLP Kilograms (kg)
Product Description

  • Two Independent Display For Any Two Gas Detector Selected By User.
  • Micro controller Based Latest, Accurate, Reliable & High Performance Technology That Eliminates False Alarm.
  • Long Term Stability.
  • Advance Warning & Alarm Output.
  • Audiovisual Gas Leakage Indication.
  • Easy One Man Calibration At Site.
  • One Individual Alarm Relay Contact Separate For Each Channel.
  • Wall Mounted Design, Easy Installation At Site.
  • Suitable In Hazardous Area CCOE, CMRI & IP-65 Approved.
  • Password Protected Programming With Password Changing Facility .  
  • Pulp & Paper Plants
  • Chemical & Petrochemical Plants
  • Acid Alkalizes & Dyes Mfg. Plants
  • Chemical Processing Plant
  • Offshore Drilling & Processing Platforms
  • Refineries
  • Stack Monitoring
  • Chemical Storage Area
  • Automotive Industries
  • Hotel Industries
  • Gas Cylinder Bank
  • Burner / Furnace Areas
  • Heat Treatment Plants
  • Paint Shop
  • Sewage Plants
  • Fertilizers Plants
  • Power & Industrial Plants
  • Gas Metering Stations
  • Bullet Yard / Storage Yards
  • Oil and Gas industries
  • Coal Mine and Confined Areas
  • Gas Pipeline Projects



4 to 20mA output from Oxygen / Toxic / Combustible Gas Transmitters


0 to 9999 In Unit P.P.M. OR % L.E.L. OR % VOL. programmable by user


1 / 0.1 Resolution programmable by user


± 1% of full scale value

Dual Display

2 X 4 digits of 13mm (H) Red LED display for Gas concentrations for CH-1 and CH-2

LED Indication

3mm, 7 LED indication for AL1, AL2,TD1, TD2, PRG, TX, RX

Set Point

One independent alarm set point for both CH-1 & CH-2 with programmable latch & non latch facility

Control Action

LO / HI, HI / LO, LO / Very LO & HI / Very HI, Programmable by user


0 to 100 Counts, individual setting for Alarm Relay-1 & Alarm Relay-2, programmable by user

Time Delay

Independent Programmable 0 to 9999 Sec for Alarm Relay-1 & Alarm Relay-2

Relay Output

Alarm Relay-1 operates for CH-1 & Alarm Relay-2 operates for CH-2

Relay Contact type

1 NO/C/NC Relay contact rated 230VAC/5A each for Alarm Relay-1 (CH-1) & Alarm Relay-2 (CH-2)


Setting by 4 keys on front panel i.e. SET / NEXT UP DOWN & BACK


i) By display : Sensor break/ open shows OPEn under range shows Undr & over range shows ouEr

ii) By Retransmission current : Upscale current : 21mA, Down scale current : 3mA, selectable

Supply Voltage

230VAC + 10% OR 110VAC + 10% OR 24 VDC


1.5 sq. mm 3 Core OR 2 Core, Flexible OR Armored shielded cable

Operating Temperature

0 to 50oC + 5%, Relative Humidity: Below 95% non Condensing

Enclosure Details

GM - 2211 - WP (Weatherproof)

GM - 2211- FLP (Flameproof)

Protection Class


IP-65 for Gas Gr.IIA & IIB, CCOE & CMRIapproved

Cabinet Material

Polycarbonate, gray colour

Cast Aluminum alloy, LM-6 / C.I. Enclosure

Cable Entry

Thermoplastic cable gland (IP-68) with clamping range of 2.5 to 6.5mm

Double compression cable gland (Ex-proof),  ET-type


250 mm(H) x 290mm(W) x 145 mm(D)

350 mm(H) x 290 mm(W) x 170 mm(D)


Wall Mounting / Stand Mounting

Wall Mounting / Stand Mounting


Approx 2.5kg

Approx 5.0kg


a) Isolated RS-485 Serial port with MODBUS RTU protocol output

b) SMARTLOG / SCADA SOFTWARE for online graph & data report for safety Audit

c) Flame Proof or Non Flame Proof Industrial Hooter, Hooter cum Flasher, Chart recorder, Cables, PC Software, Gas Transmitters, 24 VDC power supply, Gas calibration kit

d) Optional programmable linear 4-20mA / 20-4 mA O/P with respect to Gas concentration for CH-1& CH-2

Contact Us

17-B, Tarun Industrial Estate, Mogra Pada, New Nagardas Road, Andheri (East), Mumbai, Maharashtra, 400069, India
Phone :+917259672294