M81
The built-in batch controller
Set the flow batch value(dose)
The internal output of the batch controller can be directed either to the OCT or the
RELAY output circuits.
M81 and M80 should be used together to configure the batch controller.
Note: Because the measuring period is 500mS, the flow for every dos should be
keeping at 60 second long to get a 1% dose accuracy
M82
View the daily, monthly and yearly flow totalizer and thermal energy totalizer value.
The totalizer values and errors for the last 64 days, 32 last 32 months and last 2 years
are
stored in the RAM memory, To view them, use the ‘ENT’ and ‘UP’ ‘Down’ keys.
M83
Automatic Amending Function for automatic offline compensation.
Select ‘YES’ to enable this function, select ‘NO’ to disable it.
When
the function is enabled, The flow meter will estimate the average flow
uncounted
(or ‘lost’) during the offline session and add the result to the totalizer.
The estimation of the uncounted flow is made by computing the product of the offline
time period and the average flow rate, which is the average of the flow rate before
going
offline and the one after going on line.
M84
Set the thermal energy unit:
0. GJ 1. KC 2.KWh 3. BTU
M85
Select temperature sources
0. from T1,T2 (factory default)
1. from AI3,AI4
M86
Select the Specific Heat Value.
Factory default is ‘GB’. Under this setting, the flow meter will calculate the enthalpy
of water based on the international standard.
If the fluid is other than water, you should select option ‘1. Fixed Specific Heat’,
and
enter the specific heat value of the fluid.
M87
Turn on or turn o ffthe Energy totalizer.
M88
Select thermal energy totalizer multiplying factor.
Factory default is ‘1’.
M89
1. Display the temperature difference
2. Window for entering the lowest temperature difference.
*M90
Display signal strengths S (one for upstream and one for downstream), and signal
quality
Q value.
Signal strength is presented by 00.0 to 99.9, the bigger the value, the bigger the signal
strength will be, and more reliable readings will be made.
Q value is presented by 00 to 99, the bigger the better. It should at least be great than
50 for normal operations.
*M91
Displays the Time Ratio between the Measured Total Transit Time and the Calculated
time. If the pipe parameters are entered correctly and the transducers are properly
installed, the ratio value should be in the range of 100±3%. Otherwise the entered
parameters and the transducer installation should be checked.
M92
Displays the estimated fluid sound velocity. If this
value has an obvious difference
with the actual fluid sound speed, pipe parameters entered and the transducer
installation should be checked again.
M93
Displays total transit time and delta time(transit time difference)
M94
Displays the Reynolds number
and the pipe factor used by the flow rate measurement
program. Pipe factor is calculated based on the ratio of the line-average velocity and
the cross
-section average velocity.
M95
(1)
Display the positive and negative energy totalizers
(2)
Upon entering this window, the circular display function will be started
automatically. The following windows will be displayed one by one,
each window will stay for 8 second :
M95>>M00>>M01>>M02>>M02>>M03>>M04>>M05>>M06>>M0
7>>M08>>M90>>M91>>M92>>M93>>M94>>M95.
This function allows the user to visit all the impormation without any
manual action
To stop this function, simply press a key. Or switch to a window other
than 95
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