background image

6)

 Run mode – Your unit is now ready to use. Familiarise 

yourself with the gases being monitored in your unit and 
make sure you understand the health and safety procedures 
in the event of alarm conditions. In run mode the T3 will 
emit a short beep every 10 seconds and the OK icon flashes 
to show operational health.

7.

 

IN THE EVENT OF AN ALARM

  In the event of gas concentrations exceeding the alarm 

thresholds for any gas being monitored, the T3 will activate 
the alarm signals.

  Alarm signals – The red and blue alarm LEDs will flash, the 

sounder will emit a loud, fast series of beeps, the internal 
vibrator alarm will activate. The operator screen will display 
the gas in alarm and alarm level.

  When the gas level returns to normal, press the operator 

button. This will reset your T3 unit to normal run mode. If 
gas levels are still in alarm, the button will have no effect.

8. SWITCHING OF UNIT

  Press and hold the button for 5 seconds. The shutdown 

menu appears, continue to hold button until the unit counts 
down to shut off.

9. STORAGE AND CARE

  The Tetra 3 should be stored in a clean, dry area, non-

hazardous area, 0-30°C, 10-90%RH, in the storage box 
provided by MGF.

10. DISCLAMER

  Failure to adhere to the instructions supplied with 

the equipment may invalidate any claims with respect 

PLEASE READ & UNDERSTAND THIS USER GUIDE

PRIOR TO COMPILING A SAFE SYSTEM OF WORK

AND USING THE EQUIPMENT SUPPLIED

USER GUIDE: CROWCON TETRA 

3 GAS DETECTOR

MULTI-GAS MONITORING SYSTEM

mgf.ltd.uk

 

WARNINGS

 

 

WARNING – Do not try to modify or change the 

equipment in any way as this could void any warranty 
or cause damage to this equipment or persons using 
it. 

For the latest version of this document visit 

www.mgf.ltd.uk

Supporting 

our customers

to create

safe working 

environments

Head Office

T:

 01942 402 700

Engineering Centre

T: 

01942 402 704

North East

T: 

01913 782 100

Yorkshire

T: 

01977 521 930

North West

T: 

01942 896 282

Midlands

T: 

01889 574 777

East Anglia

T:

 01359 252 204

London North

T: 

01296 663 250

London City

T: 

01322 344 520

Bristol

T: 

01179 820 706

Exeter

T: 

01395 233 194

E: safety

@

mgf.ltd.uk   

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   W: mgf.ltd.uk

   

Approved Supplier 

and Servicing Agent

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