E-122-8-E
9. OPERATION
9.1 Preparation Before Operation
Inspect the total counter and associated equipment to ensure that they are correctly installed and wired
and that nothing has been overlooked.
Placing a high line voltage across them will burn out your counter.
Frequently repeated performance of turning on and off the power may cause erratic
counting of the counter.
Next, supply a simulated pulse train of valid type of input to see if the counter does count and display a
correct accumulated total flow and lnstantaneous flowrate in response.
9.2 Operation
Preoperational Check
Supply power to the counter. Run a performance check with "MODE" button to check for proper counter
functions.
When all preoperational checks have been made,
(1) Turn on the power (in case of Model EL0122).
(2) Allowing the fluid to flow, go into operation.
10. TROUBLESHOOTING
IMPORTANT: If trouble is found internal to the counter, localize the cause of trouble according to
the following table and then seek our service.
Symptom Check for Possible Causes
The display fails to show
accumulated total flow and
instantaneous flowrate.
1. Power supplied? (Model EL0122)
① Check for supply voltage.
② Inspect Fuse.
① Incorrect supply voltage.
② Fuse blown (internal).
③ A fault in the power unit.
2. Is a pulse train coming in?
① Wiring connections made
correctly?
② Pulses coming in?
① Input line wired incorrectly.
② Pulse generator itself is faulty.
③ Waveshaping circuitry at fault.
④ CPU at fault.
An error message in LCD See Paragraph 7.5.6 See Paragraph 7.5.6.
IMPORTANT: If trouble is suspected to be other than those listed above, then seek our service. Supply
us with the product name, model number, symptoms and other information which will help
identify the trouble.
◎ As for dedicated battery packs, order us. When you order, please state the product name, model
number and other pertinent information.
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