25
LEAK SEARCH
(OPTIONAL)
To conduct a LEAK SEARCH (LS):
To enter the LEAK SEARCH mode from the work display, press and
release the TICK/MENU (B) button. Press and release the SAVE/ZERO
(C) button until LS is displayed on the bottom of the screen. Press and
release the TICK/MENU (B) button. LEAK SEARCH will be displayed on
the top of the screen with 0 PPM on the bottom screen.
Attach a drag tube assembly or telescoping survey probe. The instrument
has a preset alarm of 10ppm (adjustable, contact Sensit for details.) The
instrument will read in 1ppm increments up to 5000ppm, auto range to
LEL and then to %v/v.
To zero the instrument in the LS mode, press and hold the SAVE/ZERO
(C) button until “Autozero” is displayed. Any alarm can be muted by
pressing and releasing the POWER/MUTE (A) button once. If the alarm
sound is turned off before an alarm condition is met, the alarm will remain
off until activated by pressing and releasing the POWER/MUTE (A)
button. If the alarm sound is muted during an alarm condition and the
concentration of gas is below the alarm threshold, the alarm will activate if
the concentration exceeds the alarm threshold again.
To exit the LS mode, press and hold the POWER/MUTE (A) button for 2-3
seconds to exit to the work display.