Linde G-TECTA 4G, Operating Manual, Page: 17 / 24

17
Gas Test/Calibration Troubleshooting
Problem Possible Cause Solution
No response to gas Gas Cylinder Empty Check cylinder gauge. Replace cylinder
Hose blocked or kinked Check hose and ensure no gas flow restriction
Instrument fails gas test Gas cylinder empty Check cylinder gauge. Replace cylinder
Gas cylinder out of date Check cylinder expiry date. Replace cylinder
Hose blocked or kinked Check hose and ensure no gas flow restriction
Calibration drifted Calibrate instrument
Gas flow not started in time Repeat gas test. Start gas immediately
Instrument fails calibration Gas cylinder empty Check cylinder gauge. Replace cylinder
Gas cylinder out of date Check cylinder expiry date. Replace cylinder
Hose blocked or kinked Check hose and ensure no gas flow restriction
Calibration drifted Calibrate instrument
Instrument stabilisation time
too short Reset instrument stabilisation time using G-TECTA
®
PC
Software
Instrument passes gas test but
will not enter calibration mode Zero not performed
from options menu Initiate zero on instrument menu
Instrument incorrectly configured Re-configure instrument.
Send to Linde Group service centre
G-TECTA
®
4G Product Specification
Dimensions 71 x 114 x 48 mm
Weight
295g (with alligator clip & 3 sensors)
IP Rating (Dusts & Liquids) IP65 & IP67
Operating Temperature Rating -20°C Ta +55°C (-4°F Ta +131°F)
Humidity Rating
20-90% RH – non-condensing, continuous operation
Display 128 x 64 Pixel with backlight
Warm-up time period Approx 45 seconds
Typical response time
T90: 10 seconds (oxygen)
20 seconds (toxic & flammable)
Alarm sounders* 95dB(A) Optional multiple alarm sounds
Visible alarms Dual colour Blue/Red flashing LEDs
Vibrating alarm
Internal vibrating
Repeatability ±2% FSD, 6 months
Electromagnetic Compatibility 2004/108/EC
Explosion Protection Certification
IECEx/ATEX/CSA
IECEx IECEx BAS 09.0117
ATEX BASEEFA09ATEX0245
CSA
CSA22.2, 152
Approval Codes
Global IECEx II 2G Ex ia d IIC T4 Gb
CSA
Class I Division 1, Groups A, B, C and D
Safety & Operation Standards EN50014, EN50020, EN50018, 94/9/EC
EN50270, EN50271
* It is recommended that the sounder output is periodically tested to ensure the instrument continues to operate as specified