Supply moisture meter and sound level meter,etc.

M23

Window for selecting transducer type.

If the user-type-transducer is selected, you need enter additional 4 user-type-wedge parameters that describe the user transducers.

If the PI-type transducer is selected, you need enter additional 4 PI-type transducer parameters that describe the PI-type transducers.

M24

Window for selecting the transducer mounting methods.

Four methods can be selected:

(0) V-method  (1) Z-method   (2) N-method（small pipe）  (3) W-method (small pipe)

M25

Display the transducer mounting spacing or distance

M26

(1) A switch for the parameters in flash memory will be loaded when power is turned on. The default option is that the parameters will be loaded. If this switch is not turned on, the system will try to use the parameters in the system RAM, if these parameters are ok, otherwise the system will load the parameters in flash memory.

(2) Function to store the current parameters into the flash memory so that these parameters will be solidified and will be loaded as the default parameters every time when power is turned on.

M27

Entry to store to or restore from the internal Flash memory, as many as 9 different pipe parameter configurations.

To save or load the current setup parameter, use the going up or going down keys to change the address number, press ‘ENT’ key, and use going down or going up keys to select to save to or load from the memory.

M28

Entry to determine whether or not to hold (or to keep) the last good value when poor signal condition occurs. YES is the default setup.

M29

Entry to setup empty signal threshold. When the signal is less than this threshold, the pipe is regarded as empty pipe, and the flow meter will not totalize flow.

This is based on the fact that, for most occasions, when pipe is empty, the transducer would still receive signal, just smaller than normal, As a result, the flow meter would show normal operation, which is not correct.

Make sure that the entered value must be less than the normal signal strength.

When much noisy signals are received, to make sure the flow meter will not incorrectly totalize flow, there is also a ‘Q’ threshold should be entered in M.5.

M30

Window for selecting unit system. The conversion English to Metric or vice versa will not affect the unit for totalizers.

M31

Window for selecting flow rate unit system.

Flow rate can be in

0. Cubic meter          short for   (m3)

1. Liter                          (l)

2. USA  gallon                   (gal)

3. Imperial Gallon                 (igl)

4. Million USA gallon              (mgl)

5. Cubic feet                      (cf)

6. USA liquid barrel                (bal)

7. Oil barrel                       (ob)

The flow unit in terms of time can be per day, per hour, per minute or per second. So there are 32 different flow rate units in total for selection.

M32

Window for selecting the totaliziers unit. Available units are the same as those in M31.

M33

Window for setting the totalizer multiplying factor.

The multiplying factor ranges from 0.001 to 10000. Factory default is 1

M34

Turn on or turn off the NET totalizer.

M35

Turn on or turn off the POS (positive) totalizer.

M36

Turn on or turn off the NEG(negative) totalizer.

M37

(1) Totalizer reset.

(2) Restore the factory default settings parameters. Press the dot key followed by the backspace key. Attention： it is recommended to make note of the parameters before doing the restoration.

M38

Manual totalizer used for easier calibration. Press a key to start and press a key to stop the manual totalizer.

M39

Interface Language selection.

The selection could also be changed automatically by the system, if English LCD display is used as the display device.

M3.

Setup for local segmental LCD display. Enter 0 or 1 for the non-auto-scan mode; Enter 2~43 for the auto-scan mode. In the auto-scan mode the display will automatically scan displaying from 00 to the entered number of the local segmental LCD display.

M40

Flow rate damper for a stable value. The damping parameter ranges form 0 to 999 seconds.

0 means there is no damping. Factory default is 10 seconds.

M41

Low flow rate (or zero flow rate) cut-off to avoid invalid accumulation.

M42

Zero calibration/Zero point setup. Make sure the liquid in the pipe is not running while doing the setup.

M43

Clear the zero point value, and restore the solidified zero point value.

M44

Set up a flow bias. Generally this value should be 0.

M45

Flow rate scale factor. The default value is ‘1’.

Keep this value as ‘1’, when no calibration has been made.

M46

Networks address 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 system parameters.

If password is forgotten, a command ‘LOCK0’ can be sent to the serial input to unlock. Or you can write 0 to REGISTER49-50 under MODBUS protocol.

M48

Entry to linearity correcting data inputs. By using of this function, the non-linearity of flow meter will be corrected. Correcting data shall be obtained by careful calibration.

Firstly, the number of how many sets of data shall be input.

Secondly, data sets of correction, in an order of from the smallest flow to the biggest.

NOTE: to avoid erratic changes of these data， which is very important for the accuracy of the flow meter, a password window was added on Aug 18, 2009. The password is always ‘1111’