GMI PPM Gasurveyor 500, User Handbook Manual

Page: 64 / 90

C-2
GAS MEASUREMENT INSTRUMENTS LTD.
CHECKLIST
1. Check the instrument has no obvious faults.
2. Check accessories.
3. Read and understand handbook before use.
4. Switch ON (see overleaf)
5. Check battery levels.
6. Check “ZERO” in fresh air.
SAFETY
• The instrument must be regularly serviced and calibrated by
fully trained personnel in a safe area.
• Batteries: Alkaline batteries or *Rechargeable battery pack
must be exchanged (*and recharged) in a safe area and fitted
correctly before use. Never use damaged batteries or expose
to extreme heat.
• Only GMI replacement parts should be used.
• If the instrument detects gas, follow your own organisation’s
procedures and operational guidelines.
• The combustion chamber is a flameproof assembly and must
not be opened in the presence of a flammable atmosphere.
• PPM Gasurveyor 500 instruments are certified as
EEx iad IIC T4 (-20
o
C < Tamb < 50
o
C).
BAS01ATEX2292 II 2 G.
UL Class 1 Groups A, B, C and D.
• This equipment is designed and manufactured to protect against
other hazards as defined in paragraph 1.2.7 of Annex II of the
ATEX Directive 94/9/EC
Any right of claim relating to product liability or consequential damage to any
third party against GMI is removed if the warnings are not observed.
AREAS OF USE
Exposure to certain chemicals can result in a loss of sensitivity of the flammable
sensor. Where such environments are known or suspected it is recommended
that more frequent response checks are carried out. The chemical compounds
that can cause loss of sensitivity include Silicones, Lead, Halogens and Sulphur.
Do not use instrument in potentially hazardous atmospheres containing greater
than 21% Oxygen. The enclosure material is polypropylene and must not be
exposed to environments which are liable to result in mechanical or thermal