E-888-5-E
8. PREPARATIONAL CHECKS AND OPERATION
8.1 Preparation Before Operation
() Ensure that the instrument and related equipment are correctly installed and wired with no place left
unfinished.
WARNING: Make sure to see that the power terminals are connected to a power
source of the rated voltage. Applying a power source of incorrect voltage
could ruin your instrument.
() Supply power to this instrument and make certain to see that the front panel display is illuminated.
The display will remain unilluminated for one second after power on, which however is by no means
any indication of fault.
8.2 Preparational Checks
CAUTION: Allow a warmup period for 60 minutes or so after you turn on the power.
Verify that the instrument does not operate with no fluid flow.
How to Check
() Couple sources of simulated temperature and pressure signals.
() Using the shift keys, select menu items and verify the information displayed.
See the KEY OPERATION MANUAL.
() Inject a simulated input pulse train or density signal representing the type of the companion pulse
generator.
() Select display menu items of the total mass flow and total calorific flow, and make sure that incoming
pulses are being accumulated. Also, verify that pulse output and analog output are properly
generated.
(5) Remove the simulated pulse input and compare the obtained readings on the display with
corresponding theoretical values. Remember that this instrument is not equipped with a counter to
accumulate incoming pulses. Hence, an external counter is required.
8.3 Operation
CAUTION: Allow a warmup period for 60 minutes or so after you turn on the power.
() Select your power reset or non-reset (accumulated total) option.
See the KEY OPERATION MANUAL.
() Turn on power. While the initial check screen remains displayed, indicating that the process of
verifying parameters and variables is in progress after you turned on the power, your instrument will
not accept any pulse input.
() Place your instrument in service operation by allowing the fluid to be metered.
