INFICON Sensistor XRS9012 Hydrogen Leak Detector User Manual - Manual (Page 9)

ON Starts instrument.
When the detector is started the ten LEDs
light up and subsequently counting down
during the warm up sequence. The detec-
tor is ready to use when the countdown is
completed.
OFF Turns instrument off.
SENSITIVITY ▲ and ▼.
The sensitivity of the detector can be set
to 10 different levels. The highest levels
are extremely sensitive. Conclusions to
excavate for the repair of a leak should not
normally be made without reconfirming
on sensitivity 5 or lower. Use the higher
sensitivities for faster identification of
suspect areas. Confirm the leak position
by measuring more carefully at a lower
sensitivity.
Wait until the concentration has increased
or make a few holes for higher signals. Ex-
cavate only on signals that you can repeat
over and over again.
The sensitivity is changed by pressing the
SENSITIVITY up or down key. Pressing
the key momentarily once will increase or
decrease sensitivity one level and the cor-
responding LED will light up shortly. The
sensitivity will increase/decrease to max or
min if the key is held down for longer.
NOTE! The sensitivity can not be changed
when the instrument is in MAX mode.
Switch to SEARCH mode for changing
sensitivity.
VOLUME ▲ and ▼ set the audio volume.
The volume setting changes stepwise to
max/min if key is held down.
Volume setting is stored after 1 minute.
BATT CHECK shows charge status.
10 LEDs indicates fully charged battery
(approximately 15 h of operation).
LED 1 – 5 indicates approximately 1 hour
of operation / LED.
ZERO resets signal to zero.
SEARCH sets instrument in SEARCH
mode.
Auto Power Off
The instrument will switch off after 30
minutes if no key is pressed.
Battery protection feature
The instrument will automatically switch
off if the battery voltage falls below 5.0
V. This protects the battery from harmful
deep discharge.
EN
9 INFICON - User’s manual Sensistor XRS9012