LACO USER MANUAL - GASCHECK G SERIES
11
© 2018 FLUIDX Equipment, Inc.
FUNCTION
DESCRIPTION
MODEL
GAS SELECTION
The GasCheck is calibrated using helium gas at manufacture, however other gases
can be detected and measured using a gas table within the instrument. Although
GasCheck can’t differentiate between gases, it can quantify other gases using
response factors stored in its internal gas table. Gas groups 0, 1, 2, 3, and 4 offer a
generic sensitivity.
See Table 8: Gas Sensitivity to compare response factors for specific gases. For advice
on gases not listed, please contact Portable Leak Detectors.
To select an alternative gas:
1. Use the UP and DOWN keys to select the desired gas
2. Press the ENTER key to confirm the selection.
3. A “tick” will appear.
4. Press the ENTER or esc to exit to the MAIN MENU.
If the gas to be detected does not appear in the instrument’s internal gas table,
then one of the five Gas Groups can be selected. Gas Groups have a variation of
sensitivities. Group 1 is high sensitivity and Group 5 is low sensitivity. Gas groups allow
the instrument to calculate leak rates with reasonable accuracy.
Table 7: GasCheck Feature Comparison
FEATURE
G1
G2
G3
CONTRAST
X
X
X
BACKLIGHT
X
X
X
SOUND
X
X
X
PEAK HOLD
X
X
CUSTOM CALIBRATION
X
X
BATTERY TYPE
X
DATA LOG
X
UNITS OF MEASUREMENT
X
GAS TABLE
X
UPGRADE
X
X
Table 8: Gas Sensitivity
NAME
ABBREV. MAX. SENS. CC/SEC
MIN. SENS. CC/SEC
Hydrogen
H
2
7.7 E-6
Helium
He
1.0 E-5
Refrigerant R12
R
12
2.7 E-5
0.000027
Refrigerant R1301
R
1301
2.4 E-5
0.000024
Refrigerant R134a
R
134a
5.8 E-5
0.000028
Refrigerant R22
R
22
2.6 E-5
0.000260
Refrigerant R11
R
11
3.2 E-5
0.000032
Содержание GasCheck G Series
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