Kane LS1, Руководство оператора

Страница: 7 / 16

LS1 Page 7
ALARM INDICATION (only works with switch set to “ALARM”)
10. The Alarm is pre-set at approximately 0.5% gas (10% of L.E.L.) with the
potentiometer in the locked position. If gas at the sensing head rises above
this level then a two tone sound will be heard and the “ALARM” light will
flash. This indicates a potentially hazardous atmosphere.
11. Note: If the instrument is in an area where high gas concentrations are
present, the “ALARM” may not stop. The unit may still detect any higher
gas levels in a normal manner.
12. To continue searching for a leak while the unit is alarming press the
“MUTE” button or slide the switch to “ON”, this disables the alarm facility.
The ‘LEVEL INDICATOR’ and ticking sound will continue to work as
detailed in BASIC OPERATION.
13. The ‘LEVEL INDICATOR’ and tick rate are independent of the alarm,
which is calibrated to the appropriate gas concentration.
SETTING THE ALARM
14. Turn on to “ALARM” for ten minutes to warm up.
15. Insert the sensor into a clean, closed container filled with the level of gas to
be detected (i.e. in the factory we set to 0.5% dry methane-air). This gas can
be in the range 0-2% methane in air or an equivalent desired gas i.e.
propane.
16. Rotate the “ALARM SET” adjustment until the “ALARM” light JUST
comes on.
17. Remove the sensor from the gas for 1 minute the re-insert to verify the
adjustment.
If the unit cannot be calibrated using this procedure, it should be returned to Kane
International or an authorised distributor for repair.