TF1100-EH transit-time handheld flowmeter manual
20
second. So there are 36 different flow rate units in total for selection.
M32
Window for selecting the totaliziers’ working unit
M33
Select totalizer multiplier
The multiplier ranges from 0.001 to 10000
M34
Turn on or turn off the NET totalizer
M35
Turn on or turn off the POS totalizer
M36
Turn on or turn off the NEG totalizer
M37
(1) Totalizer reset
(2) Restore the instrument to the default parameters as the manufacturer did
(Reset system) by pressing the dot key
.
followed by the
◀
key. Take
care or make note on the parameters before doing restoration.
M38
Manual Totalizer. Press-a-key-to-run or to stop totalizer for easier calibration
application etc.
M40
Flow rate damper for a stable value. The input range is 0 to 999 seconds.
0 means there is no damping. Default value is 10 seconds
M41
Low Flow Cutoff, may be used in order to force a zero display at
lower flows and avoid
incorrect totalizer.
For instance, this value is 0.01m/s,
the meter will display zero when
flow rate is less than ±0.01m/s.
M42
Set Zero, when the fluid is in the static state, the displayed value is
called “zero point”. When the “Zero Point” is not really at zero, the
incorrect read value is going to be added into the actual flow values.
Set Zero must be carried out after the transducers are right installed and the
flow inside is in the absolute static state (no liquid moved in the pipe line).
Set Zero also is very important step when recalibrating the meter in lab.
Doing this step enhances the measuring accuracy and flow offset can be
eliminated.
M43
Clear the zero point set by the user, and restore the zero point set by the
manufacturer
M44
Manual Zero Point. Set up a manual flow bias. Generally this value should be
0.
M45
The Scale Factor is used to modify the measurement results, factory default
is 1.0 or other value depend on calibration, please see the calibration data
sheet and save this sheet. If really necessary, the user can enter a numerical
value other than factory default value according to re-calibration results.
M46
Network environment Identification Number. Any integer can be entered
except 13(0DH, carriage return), 10 (0AH, line feeding), 42 (2AH), 38,
65535. Every set of the instrument in a network environment should have a
unique IDN. Please refer to the chapter for communication.
M47
System locker to avoid modification of the parameters (The universal
password is 0808)
M49
Communication tester
M41
Low Flow Cutoff
0.01m/s
