Gas Test/Calibration Troubleshooting; Product Specification - Linde G-TECTA 4G Operating Manual

Gas Test/Calibration Troubleshooting

Problem
No response to gas
Instrument fails gas test
Instrument fails calibration
Instrument passes gas test but
will not enter calibration mode
G-TECTA 4G Product Specification
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Dimensions
Weight
IP Rating (Dusts & Liquids)
Operating Temperature Rating
Humidity Rating
Display
Warm-up time period
Typical response time
Alarm sounders*
Visible alarms
Vibrating alarm
Repeatability
Electromagnetic Compatibility
Explosion Protection Certification
Approval Codes
Safety & Operation Standards
* It is recommended that the sounder output is periodically tested to ensure the instrument continues to operate as specified
Possible Cause
Gas Cylinder Empty
Hose blocked or kinked
Gas cylinder empty
Gas cylinder out of date
Hose blocked or kinked
Calibration drifted
Gas flow not started in time
Gas cylinder empty
Gas cylinder out of date
Hose blocked or kinked
Calibration drifted
Instrument stabilisation time
too short
Zero not performed
from options menu
Instrument incorrectly configured
IECEx IECEx BAS 09.0117
ATEX BASEEFA09ATEX0245
Global IECEx II 2G Ex ia d IIC T4 Gb
Solution
Check cylinder gauge. Replace cylinder
Check hose and ensure no gas flow restriction
Check cylinder gauge. Replace cylinder
Check cylinder expiry date. Replace cylinder
Check hose and ensure no gas flow restriction
Calibrate instrument
Repeat gas test. Start gas immediately
Check cylinder gauge. Replace cylinder
Check cylinder expiry date. Replace cylinder
Check hose and ensure no gas flow restriction
Calibrate instrument
Reset instrument stabilisation time using G-TECTA
Software
Initiate zero on instrument menu
Re-configure instrument.
Send to Linde Group service centre
71 x 114 x 48 mm
295g (with alligator clip & 3 sensors)
IP65 & IP67
-20°C Ta +55°C (-4°F Ta +131°F)
20-90% RH – non-condensing, continuous operation
128 x 64 Pixel with backlight
Approx 45 seconds
T90: 10 seconds (oxygen)
20 seconds (toxic & flammable)
95dB(A) Optional multiple alarm sounds
Dual colour Blue/Red flashing LEDs
Internal vibrating
±2% FSD, 6 months
2004/108/EC
IECEx/ATEX/CSA
CSA CSA22.2, 152
CSA Class I Division 1, Groups A, B, C and D
EN50014, EN50020, EN50018, 94/9/EC
EN50270, EN50271
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PC
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