QRAE II
User’s Guide
Page 69
Hazardous Areas classified by Zones
PGM 2400 and PGM 2400P are intended to be used in hazardous areas classified for
zone 1 or zone 2, within the temperature range of -20º C to +50º C, where gases of
explosion groups IIA, IIB or IIC and T4 may be present.
Hazardous Areas classified by Divisions
PGM 2400 and PGM 2400P are intended to be used in hazardous areas classified for
Class I Div. 1 or 2, within the temperature range of -20º C to +50º C, where gases of
explosion groups A, B, C or D and temperature class T4 may be present.
Caution:
Refer to RAE Systems Technical Note TN-114 for sensor cross-sensitivities.
Refer to RAE Systems Technical Note TN-144 for LEL sensor poisoning.
Caution: Before each day’s usage, sensitivity must be tested on a known
concentration of methane gas equivalent to 20-50% of full scale
concentration. Accuracy must be within 0-20% of actual. Accuracy
may be corrected by calibration procedure.
Attention: Avant chaque utilisation journaliere verifier la sensibilite
avec une concentration connue de methane equivalente a 20-50% de la
pleine echelle. La precision doit etre comprise entre 0-20% de la
valeur vraie et peut etre corrigee parune procedure dietalonnage.
The model PGM-2400 and PGM-2400P are certified according to the IECEx scheme,
ATEX and cCSAus (for U.S. and Canada). PGM2400P is intrinsically safe and may be
used in hazardous locations.
SUBSTITUTION OF COMPONENTS MAY IMPAIR INTRINSIC SAFETY.
Note:
Users are recommended to refer to ISA -RP12.13, Part II-1987 for general
information on installation, operation, and maintenance of combustible gas detection
instruments
•
Only the combustible gas detection portion of this instrument has been assessed
for performance.
Uniqument, la portion pour detector les gaz combustibles de cet instrument a été évaluéé.
•
Any rapid up-scale reading followed by a declining or erratic reading may
indicate a gas concentration beyond upper scale limit which may be hazardous.
Toute lecture rapide et positive, suivie d’une baisse subite au erratique de la valeur, peut
indiquer une concentration de gaz hors gamme de détection qui peut être dangereuse.
•
The QRAEII Multi Gas detector must be calibrated if it does not pass a Bump
Test, or at least once every 180 days, depending on use and sensor exposure to
