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M94
Display the Reynolds number and the pipe factor used by the flow rate
measurement program. Note, the pipe factor is rarely used.
M95
Not used
M96
Not used
M97
Command to store the pipe parameters either in the built-in data logger or to the
RS-232C serial interface
M98
Command to store the diagnostic information either in the built-in data logger or
to the RS-232C serial interface
M99
Command to copy the current display either to the built-in data logger or to the RS-
232C serial interface
M+0
View the last 64 records of power on and off events. The recorded information
include the date and time as well as the corresponding flow rate when the power
on or off occurs
M+1
Display the total working time of the instrument
M+2
Display the last power-off date and time
M+3
Display the last power-off flow rate
M+4
Display the total number of times the flow meter has been powered on and off
M+5
A scientific calculator for the convenience of field applications.
All the values are in single accuracy.
All the mathematic operators are selected from a list.
M+6
Velocity change setup
M+7
Protocol selection
M+8
Not used
M+9
Not used
M-0
Entry to hardware adjusting windows. Valid for the manufacturer only.
6
Troubleshooting
This section provides troubleshooting techniques for most common operating problems.
6.1
No Display
1.
Check the power supply connection.
2.
Check the power fuse for faults.
3.
Check the contrast of LCD and adjust.
6.2
Exciting Alarm
1.
Check the connection of the exciting cables.
2.
Check the total resistance of sensor’s exciting coil resistances (less than 150Ω)
.
3.
If first and second points are OK, then the converter is faulty.
6.3
Empty Pipe Alarm
If measured fluid full of testing pipe of sensor:
1.
Short circuit three connectors
SIG 1, SIG 2, SGND of converter; if no “Empty Alarm” is
displayed then the converter works. In this case, it is possible that the conductivity of
