Gas Monitors and Repeaters

A wide range of oxygen and carbon dioxide monitors and repeater units to provide warnings of an unsafe atmosphere

If gases are used in confined spaces, monitoring equipment should be installed as a matter of course. BOC can supply and install a range of battery and mains powered oxygen and carbon dioxide monitors, alarms and emergency response equipment ensuring the area where gases are used is constantly monitored.

Ensuring that all potential hazards and dangers are recognised and mitigated is key to creating a safe working environment.

Cryogenic gases may produce an immediately hazardous environment through the displacement or enrichment of oxygen levels. Oxygen deficiency can result in an asphyxiation risk, while enrichment can dramatically increase the risk of fire.

Where there is the potential for carbon dioxide levels to be above the agreed exposure limits, protection should be provided against sudden or gradual toxicity.

To help mitigate these risks, we offer a wide range of oxygen deficiency and enrichment monitors, carbon dioxide monitors and a range of repeater units that can be attached to monitors to provide additional warnings of an unsafe atmosphere.

Oxygen Monitors

Oxygen monitors help to ensure a working environment is safe. They monitor the oxygen levels in the environment; too little oxygen (oxygen deficiency) there is a danger of asphyxiation or too much oxygen (oxygen enrichment), and there is a danger of severe fires. If a level becomes dangerous, the monitors will emit audible and visual alarms to alert personnel.

A repeater unit does not monitor the oxygen levels, but mimics the alarm on the oxygen monitor. Install a repeater unit outside the room to warn against entry.

Depending on the size of the room and the amount and type of cryogenic liquid stored, BOC has a range of oxygen deficiency and enrichment monitors and repeaters to fit most requirements.


Wall Mounted Oxygen Deficiency Monitors

Monitors Features Benefits Applications Part No.
One 2 One 02 Combined monitor + repeater package. Audible alarm from both monitor and repeater. LCD on repeater shows % O2 Alarms sound inside and outside the room. No need for wiring or mains connection. No need for any addition parts to set up system – complete package. Ideal for simple single room /single source monitoring. System cannot be extended. 19312986
Standard Oxygen
deficiency monitor
Single monitor unit with sensor and in-built alarm. Alarms when oxygen levels are dangerously low. Builds a modular system. Can connect to repeater units that switch emergency devices. Can connect to repeater units that switch emergency devices. The oxygen monitor to use in more complex systems where asphyxiation is possible. 19307505

Replacement Battery & Sensor

Sensor Battery Description Part No.
For use with
One 2 One
Pack contains replacement
sensor and battery
19219529
For use with
Standard oxygen
deficiency monitor
Pack contains replacement
sensor and battery
19310552

Wall Mounted Oxygen Enrichment Monitors

Monitors Features Benefits Applications Part No.
Standard Oxygen
Enrichment Monitor
Single unit with sensor and inbuilt alarm. Alarms when oxygen levels dangerously high. Builds a modular system. Can connect to up to four repeater units (repeater units connect in series). Can connect to repeater units that switch emergency devices. For use in confined spaces where oxygen release is possible. 19307729

Wall Mounted Oxygen Enrichment AND Deficiency Monitor

Monitors Features Benefits Applications Part No.
Standard Oxygen
Enrichment and
Deficiency Monitor
Single unit with sensor and inbuilt alarm. Detects and alarms at both low and high oxygen levels. Battery Powered. Can connect to up to four repeater units (repeater units connect in series). Can connect to repeater units that switch emergency devices. Use this monitor when there is a danger of both oxygen and an asphyxiant gas escaping. 19307506

Wall Mounted Oxygen Repeater Units

A. Repeaters that:
can NOT switch attached electronic devices (e.g. fans/sirens)
CAN attach to one monitor and up to three other repeaters (daisy chain) giving 4 repeaters in total.
Monitors Features Benefits Applications Part No.
BASIC O2
REPEATER
NO LCD DISPLAY
Connects to standard oxygen monitors. Diode and audible alarms. Battery Powered. 10m cable included. Provides a remote warning alarm. Up to 4 repeaters can connect in series (daisy chain). Low-cost option for remote alarming away from the source of asphyxiant. Ideal for rooms with multiple entry points. 19208538
DISPLAY O2
REPEATER WITH
LCD DISPLAY
Connects to standard oxygen monitors. Diode + audible alarm LCD display showing % O2. Battery powered. 10m cable included. Visual display of oxygen levels. Provides remote warning alarm. Up to 4 repeaters can connect in series (daisy chain). For applications where users want the comfort of seeing % O2 levels displayed. Ideal for rooms with multiple entry points. 19307508

Switching Box, Cable, Battery

Sensor Battery Description Part
No.
BATTERY FOR
BASIC O2
REPEATER AND
DISPLAY REPEATER
  19310551
SWITCHING BOX
FOR SWITCHING
REPEATERS
Connects repeater to mains powered device 19308796
10 m CABLE Connects standard monitors to repeaters. Only the multi-monitor repeater comes w/out cables 19308898

Personal Oxygen Monitor and Alarm

BOC's range of personal monitors offers protection for those regularly entering or working in an environment where changes to the composition of the surrounding air are a possibility.

- Alerts users to dangerously high or low oxygen levels (outside preset low and high levels)

- Monitors oxygen concentrations in the surrounding air

- Cannot be switched off

- protecting users at all times

- In alarm condition, LCD display cuts off to prevent subjective user decisions about levels of danger

- Easily calibrated by user in fresh air using LCD

- Belt/pocket clip provided

- Earpiece available for noisy environments

- LCD on top for optimal viewing by user and confirmation of continuous operation

- Warning alarm and low battery (service) alarm sited alongside LCD display for optimal visibility

- Low battery alarm will sound for several days continuously

- Operates continuously for up to 2 years under normal ambient conditions, no need to recharge

- Replacement battery/ sensor pack gives ongoing life at end of the two-year period

- Fully operational in superconductive magnetic fields

- Small compact size - 125mm x 65mm x 23mm

- Lightweight unit - approx. 200g.

Carbon Dioxide Monitors

Carbon dioxide monitors help to ensure a working environment is safe.  If levels become dangerous, the monitors will alarm.

A repeater unit does not monitor the carbon dioxide levels but mimics the alarm on the carbon dioxide monitor.  Install a repeater unit outside the room to warn against entry.

Depending on the size of the room and the amount and type of cryogenic liquid stored, BOC Cryospeed has a range of carbon dioxide monitors and repeaters to fit most requirements.

Wall Mounted Carbon Dioxide Monitors


Monitors Features Benefits Applications Part No.
One 2 One CO2 Combined monitor + repeater package. LCD on repeater shows % CO2. 10m connecting cable. Alarms sound inside and outside the room. No need for any additional parts to set up the system – complete package. Ideal for simple single room / single source monitoring. System cannot be extended 19312987
Standard Carbon
Dioxide Monitor
Single monitor unit with sensor and inbuilt alarm. Alarms when carbon dioxide levels are dangerously high. Builds a modular system. Can connect to up to four repeater units (repeater units connect in series). Can connect to repeater units that switch emergency devices. The carbon dioxide monitor to use in more complex systems 19307504

Optional Battery Backup for Standard CO2 Monitor

Monitor Description Part No.
Battery Backup – Standard CO2 monitor Gives approximately 4 days backup if power fails 19308797


Wall Mounted Carbon Dioxide Repeaters


A. Repeaters that attach to One CO2 monitor, plus other repeaters
B. Repeater that attaches up to 4 CO2 monitors and can switch devices

A. Repeater that:
CAN attach to one monitor and up to three other repeaters (daisy chain) giving 4 repeaters in total

 

Monitors Features Benefits Applications Part No.
STANDARD CO2
REPEATER
Diode and audible alarm, battery powered, 10m cable included. Remote CO2 warning alarm, Up to 4 repeaters can connect in series (daisy chain) Ideal for rooms with multiple entry points 19308799


B. Repeater that:
Connects to up to 4 standard CO2 deficiency monitors
CAN switch attached devices (e.g. fans/sirens) (need to buy switching box)


Monitors Features Benefits Applications Part No.
MULTI-CO2 MONITOR
SWITCHING REPEATER
Connects up to four standard carbon dioxide monitors, mains powered, cable NOT included A central repeater for multiple units has the capacity to switch external devices (switching box sold separately) Use where more than one source of CO2 is present or where multiple locations are monitored, Ideal where additional emergency responses are required such as fans or sirens 19308800


Switching Box, Cable, Battery


Sensor Battery Description Part No.
REPLACEMENT BATTERY FOR STANDARD
CO2 REPEATER
Same part as for 02 repeater 19310551
SWITCHING BOX FOR
SWITCHING REPEATER
Connects repeater to mains powered device 19308796
10 m CABLE CO2 Connects standard monitors to repeaters. Only the multi-monitor repeater comes without cables 19308801

Siren and Beacon Alert

Monitors Features Benefits Applications Part No.
SIREN BEACON Loud siren and beacon alarm. Can be used with all O2 or CO2 switching repeaters. Attaches to switching repeaters. 5m cable supplied. 110 dB siren cuts through background noise Use in noisy situations 19308798

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