Oxygen Monitors

Wessington Cryogenics - Manufacturer of cryogenic vessels for liquid nitrogen, argon, oxygen, helium and CO2
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Oxygen Deficiency Monitors

A wide range of monitors designed for ease of installation and continuous monitoring even in the event of a mains failure. We offer a number of different repeater panels covering every scenario from single monitor to 64 channel requirements. Wessington can offer a full design and installation service for every type of system. The system is modular in design to allow easy build up of different modules to suit every requirement. Systems can also be expanded on site retrospectively if requirements should change.

Oxygen deficiency monitors should not be used for the detection of carbon dioxide gas.

Personal Monitors

QPM-3200

A PERSONAL COMPACT OXYGEN MONITOR WITH LCD DISPLAY FOR CONTINUOUS MONITORING OF OXYGEN CONCENTRATIONS IN SURROUNDING AIR

bulletLCD Display on top for optimal viewing by user and operational confirmation of continuous operation
bulletWarning alarm and low battery (service) alarm sited along side LCD display for optimal visibility. Low battery alarm will alarm for several days continuously.
bulletOperates continuously for up to two years under normal ambient conditions — no need for re-charging
bulletReplacement sensor/battery pack can be supplied by post and easily fitted by the user
bulletEasily calibrated by user in fresh air using LCD display
bulletSmall compact size 125mm x 65mm x 23mm approx.
bulletCompact, lightweight unit — 200g approx.
bulletCannot be switched off — protects users at all times
bulletBelt/pocket clip provided
bulletEar phone for noisy environments

DESCRIPTION

The NEW QPM3200 represents all the technical advantages of the well known PM32 but provides significant added value with an LCD display as standard and a two year life of continuous operation with no ON/OFF switch which could potentially leave users at risk.

The New QPM3200 is a personal oxygen monitor which monitors continuously the concentration of oxygen in the surrounding air and provides both visual and audible alarms should the detected concentration of oxygen fall below the pre - set LOW ALARM level or above the pre - set HIGH ALARM level.

The QPM3200 contains a long life two year oxygen sensor and special built-in battery pack which allows the unit to operate continuously for at least two years under normal ambient conditions.

Replacement sensor/battery packs can be easily fitted by the user or alternatively a full return by post service/calibration check can be provided by Wessington as required.

The QPM3200 protects users from the potential hazard of nitrogen, argon, helium deficiencies in conjunction with oxygen enrichment.

SPECIFICATION

Dimensions

125mm (L) x 65mm (W) X 23mm (H)- fits into breast pocket

Weight

200gms approx

Fixings

Clip for pocket or belt mounting (leather case optional)

Alarms         

HIGH ALARM - flashing red l.e.d. and audible bleeper

(normally set at 22%)

LOW ALARM - flashing red l.e.d. and audible bleeper

(normally set at 19%)

Other alarm settings available

Optional earpiece for noisy operating environments

Read-out

LCD display to 0.01

Calibration Test

By simple adjustment in fresh air using LCD as reference point

Download QPM-3200 Data Sheet (pdf)

 

Fixed Monitors

QFM-330

SIMPLE BATTERY POWERED MODULAR SYSTEM FOR CONTINUOUS MONITORING OF OXYGEN CONCENTRATIONS WITH NO NECESSITY FOR MAINS CONNECTION

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Base module acts as simple stand-alone unit or in conjunction with a range of remote alarm / display units allowing customisation to suit different locations. System simply ‘plugs’ together to allow easy  connection of alarms and displays to suit every application.

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System is battery powered and fixes easily to a wall with NO NEED for wiring to mains power.

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Base unit cannot be switched off, giving maximum protection to the user.

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All modules have built in visual and audible alarms with two alarm states ‘Low’ and ‘Critically Low’.

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Lightweight, compact and easy to maintain.

DESCRIPTION

The Q-330 Oxygen Monitor and Alarm System combines simple, reliable operation with ease of installation, providing a low cost solution for oxygen monitoring. It continuously monitors the concentration of the oxygen in the air surrounding its sensor and provides both visual and audible alarms when the monitored concentration falls below pre-set levels.

The Q-330 system is designed to be completely modular with the basic building being the QFM-330 monitor. This unit incorporates a sensor which is placed at an appropriate sensing point by simply screwing to the wall (NO ADDITIONAL POWER SUPPLY IS NEEDED). The QFM-330 also includes audible and visual alarms and by simply plugging in additional modules to the base unit, a number of additional facilities are available. The alarm can be repeated at a remote site; a digital display of the oxygen concentration can be added and a switching unit for connection of fans, valves or other alarm systems can be provided simply by selecting the appropriate additional modules. A computer connection can also be included. The repeater units are all battery powered, with the exception of a further mains powered module which incorporates a boosted klaxon and warning beacon, for use in particularly noisy operating environments. Additional modules can be added to the system when initially installed, or at a later date without need for modification of the basic unit.

Any number of base sensing units can be fitted at any site to allow for the need for multiple sensing. The Q-330 by selective use of appropriate modules can provide a low cost solution to every scenario from a simple single monitor to a large monitoring system spread over a number of rooms requiring many monitors and alarms.

OPERATION

Two independent alarm levels are pre-set on the base unit. These provide a ‘Low Alarm’ at 19% and a ‘Critically Low’ alarm should levels fall still further to 18%. Audible alarms are 85dBa at 30cm for all battery operated units. Long life oxygen sensors are employed which will provide twelve months operation in normal use. A replacement sensor pack can be supplied by post without the need to return the unit each year and additional modules can be added, if required, without any modifications to the existing system.

Item

Part Number

Base Sensing Module

QFM-330

Remote Alarm Repeater

QRA-330

Remote Alarm Repeater With LCD Display

QRD-330

Remote Mains Powered Beacon, Audible Alarm, Display and Relay Repeater

QRL-330

Auto Dialer QAD-200
Mains Backup QM12VBAT
Mains Switching Unit QMS-330
Latck Unit QLU-100

Replacement Sensor Pack for Base Unit (Including Battery)

QM-330RS

Replacement Battery Pack for Repeater Units

QR-330B

Interconnecting Cable (10m Standard Length)

QM-330CC

SPECIFICATION

QFM-330 Monitor / Alarm Unit

Dimensions                               

150 (high) x 90 (wide) x 50 (deep) mm

Weight (excl. Cable)     

550g

QRA-330 Monitor / Alarm Unit

Dimensions                               

130 (high) x 105 (wide) x 60 (deep) mm

Weight (excl. Cable)     

450g

QRD-330 Monitor / Alarm Unit With LCD Display

Dimensions                               

130 (high) x 105 (wide) x 60 (deep) mm

Weight (excl. Cable)     

450g

                    

QRD-330                                            QM-330CC

           

 

QRL330/D


Single or multiple channel alarm repeater unit to be fitted outside the entrance door to the monitored room. The panel will repeat all the main monitor alarms and is fitted with an LCD display to show the actual oxygen level
in the monitored room. The panel is fitted with relay interfaces to allow connection to extraction fans and BMS monitoring systems.

 

QBA100


Single channel traffic light repeater
unit to be located outside the entrance door to the monitored room. The repeater unit will show the user in a very  clear manner (Green/Amber/Red) the status of the room. Unit also includes audible alarm 
 

Test gas for calibration of oxygen monitors available - 18% +/- 0.2%

 

Download Datasheet (pdf)

 

QTS32I


The QTS32I monitors the oxygen concentration in the air surrounding its oxygen sensor. This concentration is displayed on a liquid crystal display. The oxygen sensor is fitted with a 5 metre long lead to allow it to be lowered into confined spaces, ideal to fit into a glove box to monitor for oxygen deficient atmospheres