Agilent Flowmeter ADM2000
Operating Instructions
5
Auto-off
When the unit is turned on, the default is auto-off engaged.
This means the following: every time the unit is activated, a
“power-off” cycle begins, lasting 10 minutes. If the flowmeter
is not used during this time, the unit will turn off. To conserve
battery power, turn off the instrument manually by pressing
and holding the On button until the “sign off” message
appears.
The Menu button is used to disable this feature. On initial
power up while the display shows WARMUP, press and hold
the Menu button until AUTO-OFF DISABLE is displayed. The
flowmeter will now operate continuously until it is manually
turned off.
Taking a Flow Measurement
Make sure that the flow to be measured is within the range
of the flowmeter. Over ranging the flowmeter can damage
the transducer.
Briefly press the On button. The display will flash the message
WARMUP . During this time, the microprocessor will run a
self-diagnostic test to ensure the system is functioning cor-
rectly. Always turn the flowmeter on before connecting it to a
flow source. Select the desired mode if other than volumetric
flow is needed. Connect the flexible tubing to the gas source to
be measured, wait for the reading to stabilize (1 - 2 seconds)
and record the reading. To conserve battery power, turn off the
instrument manually by pressing and holding the On button
until the “sign off” message appears.
N O T E
Low flows (less than 1 mL/min) may take up to 5 seconds for
the reading to stabilize.
