Oxygen Monitor

Oxygen Monitor

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We have set up a state of the art manufacturing unit, which enables us to manufacture and supply a quality approved Oxygen Monitor. These monitors are used as advanced warning and alarm systems in oil & gas, petrochemical and power generation industries and plants. To manufacture the monitor, we use optimum grade materials and components, sourced from most reliable vendors. The clients can avail our Oxygen Monitor at the cost effective prices from us.


  • Audio visual alarm indication

  • Micro controller based system

  • User friendly operation


  • Dual Display of Gas Concentration & Set Point / Unit of Gas
  • Micro controller Based Latest, Accurate, Reliable & High Performance Technology that Eliminates False Alarm
  • Advance Warning and Alarm Output
  • Audio Visual Alarm Indication
  • Two Independent Alarm Relay Output
  • Optional Programmable Linear 4 - 20mA / 20-4 mA O/P with Respect to Gas Concentration
  • Optional RS-485 with Modbus RTU Protocol
  • Easy One Man Calibration at Site
  • Suitable In Hazardous Area CCOE, CMRI & IP - 65 Approved
  • User Friendly Operation
  • Password Protected Programming with Password changing facility 


  • Oil & Gas Industries
  • Chemical & Petrochemical Plants
  • Chemical Processing Plant
  • Pulp & Paper Plants
  • Acid Alkalizes & Dyes Mfg. Plants
  • Offshore Drilling & Processing Platforms
  • Refineries
  • Stack Monitoring
  • Chemical Storage Area
  • Ambient Monitoring
  • Sewage Plants
  • Fertilizers Plants
  • Power & Industrial Plants
  • Gas Metering Station
  • Bullet Yard / Storage Yard
  • Coal Mine and Confined Area
  • Gas Pipeline Project
  • Gas Cylinder Bank
  • Heat Treatment Plants
  • Automotive Industries / Paint Shops
  • Burner / Furnace Areas  



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


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


1 / 0.1 Resolution programmable by user


+ 1% of the full scale value

Dual Display

1) Upper :- 4 Digit of 13mm(H) Red LED display for 'Gas Concentration' indication

2) Lower :- 4 Digit of 13mm(H) Red LED display for 'Set Point Value' of Alarm Relay-1/ Unit of Gas

LED Indication

AL1 & AL2 for Relay, FLT for Fail-Safe Relay, PRG for Programming mode, INB for Service / Inhibit mode, TST for Test mode, TX for Transmitting signal, RX for Receiving signal

Set point

2 No, Independent set point for Alarm Relay-1 & Alarm Relay-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 set point 1, Alarm Relay-2 operates for set point 2 & Fail-Safe Relay with normally-off or normally- on conditions selectable

Relay Contact type

3 No, 1 NO-C- NC, 230 VAC/5A Relay contact for RL1, RL2 & Fail-Safe Relay


Setting by 4 keys on front panel i.e. -SET / NEXT- DOWN-TEST / BACK


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

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

Supply Voltage

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


1.5 sq. mm 3 Core OR 2 Core, Flexible OR Armoured shielded cable from Gas transmitter

Operating Temperature

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

Enclosure Detail

GM - 1100 - WP (Weatherproof )

GM - 1100 - FLP(Flameproof )

Protection Class


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

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

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


Wall Mounting / Stand Mounting

Wall Mounting / Stand Mounting


Approx 2.5 kg

Approx 5.0 kg


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 Transmitter, 24VDC power supply, Gas calibration kit

d) Optional programmable linear 4-20mA / 20-4 mA O/P with respect to Gas concentration range