172-65256M-00 (VFM-T2) 7 Sep 2001
9
Functions and Operation
Make sure the power supply is OFF before carrying out work on the wiring
or inspections involving disassembly. If such work is carried out with the
power on, there is a danger that equipment may malfunction or electric
shock may occur, leading to injury or other accidents.
Make sure that wiring work requiring a special license is carried out only
by qualified personnel. If carried out by unqualified personnel,
overheating or short circuits leading to injury, fires, damage or other
accidents may occur.
The counter is designed to show the following functions on the display by using the
select switch or by pressing the [MODE] or [RESET] buttons.
The LCD Counter Display
If the [MODE] button is pushed when the
select switch is set to either “8” or “0”, the
LCD counter displays the following
sequence:
Verifying the Meter Factors
If the [MODE] button is pushed when the select switch is set to either “C” or “4”, the
meter factors are displayed in the following sequence:
NOTE: For items marked with an asterisk*, set points can be selected only within the ranges
shown.
[RESET]
Button
Select
Switch
[MODE]
Button
NOTE: The [RESET] button is activated only at this time, and
pushing [RESET] changes the counter back to “0”.
C 0
The [RESET] button is not enabled.
(Inoperable)
0: 1/1, 1: 1/10, 2: 1/100
0.0001 - 1.9999
1 - 128
NOTE: This is effective only when input pulses have
very small periodic variation.
For details, see “Calculating Total and
Instantaneous Flow Rates”.
Display
Cumulative Total
Display
Meter Factor*
⇒
Number of Sampling Cycles*
⇒
Frequency Reduction*
Resettable Total
Cumulative Total
Instantaneous
Flow Rate ( / h)
Instantaneous
Flow Rate ( / min)
Resettable Total
⇒
NOTE: This is effective only when input pulses
have very small periodic variation.
For details, see “Calculating Total and
Instantaneous Flow Rates”.
Instantaneous
Flow Rate ( / h)
Instantaneous
Flow Rate ( / min)
