Teledyne 2240 – Portable Handheld Hydrogen Leak Detector, 3rd generation (updated 1/31/11) - Manual (Page 13)

Handheld Hydrogen Leak Detector Model 2240
Teledyne Analytical Instruments Page 13 of 30
4. Operation
4.1 Startup
To power-up the Model 2240, press and hold the ON/OFF
button until the Controller LCD display indicates an
operational message.
Warning: Only power-up the instrument in a hydrogen-free
environment.
After power is on, the instrument takes about ten minutes
to warm-up. During this time the LCD displays a
countdown to completion and the Probe Tip LED is amber.
The following operations occur:
The Wide Range Sensor® reaches operating
temperature.
A system self-test is run.
Upon successful completion of the above tasks the
instrument zeroes itself and automatically switches to
normal operation. If an error is detected the instrument will
display an error code (see Section 10).
4.2 Shutdown
To power-down the Model 2240, press and hold the
ON/OFF button for approximately two seconds until the
Controller LCD display turns off.
4.3 Battery Level
After power-on the BATTERY LED indicates the current
battery level (times are approximate and may vary as the
battery ages):
Color Meaning
Green more than 60 minutes of operation
remaining
Amber approximately 15 to 60 minutes of
operation remaining
Red less than approximately 15 minutes of
operation remaining