Download Tetra USA Manual Iss..

Safety Certification:
Tetra is classified to both US and Canadian standards by
Underwriter Laboratories Inc as suitable for use in Class 1
Groups A, B, C, D.Division I locations. Before use read the
manual to ensure a full understanding of how to operate
the unit and as to any limitations of use.
CH4
EEx ia d IIC T3
Ex ia d IIC T3
Baseefa03ATEX0193
IECEx BAS 04.0024
1180
0
-4F/-20 C 0Ta 131F/55 C
II 2G
ONLY AS TO INTRINSIC SAFETY FOR USE IN
HAZARDOUS LOCATIONS, CLASS I, DIVISION 1, GROUPS
A, B, C & D. TEMP. CODE T3
WARNING: SUBSTITUTION OF COMPONENTS MAY IMPAIR
PROCEDURES. NOT CLASSIFIED FOR USE IN ATMOSPHERES
MANUAL FOR BATTERY TYPE. CHANGE BATTERIES ONLY IN
A SAFE AREA. UNDERSTAND MANUAL BEFORE OPERATING
CAUTION: THIS AREA MUST BE FREE OF FLAMMABLE GASES
DURING CALIBRATION.
CL
ED
S
AS IFI
C
• Do not change or charge batteries in a hazardous location. Doing so may lead to fire or explosion.
US
Manufactured by Crowcon Oxon UK
CH4
EEx ia d IIC T4
Ex ia d IIC T4
Baseefa03ATEX0193
IECEx BAS 04.0024
0
-4F/-20 C 0Ta 131F/55 C
1180
II 2G
ONLY AS TO INTRINSIC SAFETY FOR USE IN
HAZARDOUS LOCATIONS, CLASS I, DIVISION 1, GROUPS
A, B, C & D. TEMP. CODE T4
WARNING: SUBSTITUTION OF COMPONENTS MAY IMPAIR
INTRINSIC SAFETY. TO PREVENT IGNITION OF FLAMMABLE
OR COMBUSTIBLE ATMOSPHERES, READ, UNDERSTAND
& ADHERE TO THE MANUFACTURER'S LIVE MAINTENANCE
PROCEDURES. NOT CLASSIFIED FOR USE IN ATMOSPHERES
CONTAINING GREATER THAN 21 OXYGEN. CHARGE ONLY
IN A SAFE AREA. UNDERSTAND MANUAL BEFORE OPERATING
CAUTION: THIS AREA MUST BE FREE OF FLAMMABLE GASES
DURING CALIBRATION.
CL
66Y6
C
ED
S
AS IFI
C22.2 No.152
EXia
• It is recommended that the combustible gas sensor be
checked with a known concentration of calibration gas
after any exposure to catalyst contaminations/poisons
(sulfur compounds, silicon vapors, halogenated compounds etc.)
• Do not use any other charger. Other chargers may damage the detector making it unsafe for use in hazardous
areas.
CONTAINING GREATER THAN 21 OXYGEN. REFER TO
66Y6
• Protect the combustible gas sensor from exposure to
lead compounds, silicones and chlorinated hydrocarbons. Although certain organic vapors (such as leaded
gasoline and halogenated hydrocarbons) may temporarily inhibit sensor performance, in most cases the
sensor will recover after calibration.
• Only charge the battery using a Crowcon supplied
charger.
INTRINSIC SAFETY. TO PREVENT IGNITION OF FLAMMABLE
OR COMBUSTIBLE ATMOSPHERES, READ, UNDERSTAND
& ADHERE TO THE MANUFACTURER'S LIVE MAINTENANCE
C22.2 No.152
EXia
• High off-scale %LEL readings may indicate an explosive
concentration.
US
Manufactured by Crowcon Oxon UK
Warning
• Extended exposure of the combustible sensor to certain
concentrations of combustible gases and air may stress
the sensor element, which can seriously affect its performance. If an alarm occurs due to a high concentration of combustible gases, recalibration should be performed, or if needed, the sensor replaced.
• Do not test the combustible sensor’s response using a
butane lighter. Doing so may damage the sensor.
• Prior to each days usage, sensitivity must be tested on a
known concentration of methane equivalent to 2550% of full scale concentration (accuracy must be within 0±20% of actual). Accuracy may be corrected by
recalibrating the instrument.
• Any rapid up-scale reading followed by a declining or
erratic reading may indicate a gas concentration beyond
the upper scale limit, which may be hazardous.
• To avoid possible personal injury:
Caution
• Substitution of components may impair intrinsic safety.
CAUTION: For safety reasons this equipment must be
operated and serviced by qualified personnel only. Read
and understand instruction manual completely before
operating or servicing.
• Do not use the detector if it is damaged or something
is missing, contact Crowcon immediately.
• Use only sensor modules specifically designed for your
Tetra. (Please see the section on replacement parts and
accessories.)
• Periodically, “bump test” the sensor with gas to confirm
its ability to respond to gas by exposing the detector to
a targetted gas concentration that exceeds the high
alarm setpoint. Manually verify that the audible and
visual alarms are activated.
• It is recommended that the detector be calibrated
before first-time use, and then at least once every 90
days and only by qualified personnel.
• For use in potentially explosive atmospheres where oxygen concentrations do not exceed 21%(v/v).
• Do not turn off the detector during a work shift.
Turning off the detector resets the time weighted average gas exposure values to zero.
• Ensure that the sensor is not blocked.
• Only the combustible gas detection portion of this
instrument has been assessed for performance on
methane according to C22.2 No.152.
ATTENTION: Pour des raisons de sécurité, cet équipement
doit être utilisé, entretenu et réparé uniquement par un
personnel qualifié. Étudier le manuel d’instructions en
entir avant d’utiliser, d’entretenir ou de réparer
l’équipement.
To avoid damage to the detector:
• Do not expose the detector to electrical shock or severe
mechanical shock.
• Do not attempt to disassemble, adjust or service the
detector unless instructions for that procedure are contained in the manual and/or that part is listed as a
replacement part. Only use Crowcon replacement parts.
• Do not immerse the detector in liquids.
• The detector warranty will be voided if customer personnel or third parties damage the detector during
repair attempts. Non-Crowcon repair/service attempts
void this warranty.