Hebei CCT-3300 - General fault inspection and trouble shooting

9
mA mode
Output
terminal
voltage of
terminal
voltage of
cable
Meter mode I+/I- >12V DC no
Transmitter
mode
T+/T- no DC24V
General fault inspection and trouble shooting:
phenomenon
Possible factor
trouble shooting methods
No reading
after powered
A. No power supply
connection
B. Instrument fault
A. Check the wire connection of power
supply
B. Maintained by professional.
Unstable
reading
A. Incorrect wire
connection of Cell
B. there is bubble in the
pipeline
C. the water quality is
not stable
A
. check the wire connection according
to the instruction and change if
incorrect.
B．change the pipeline or select anther
measurement point
C．Use stable water quality to check the
problem reason
Serious error of
reading
A. Incorrect constant
Setting
B. The electrode
constant is changed
C. Inappropriate flow
speed of measured
point
D. Incorrect electrode
installation
A. Reset the electrode constant
B. Replace a new electrode or reset the
electrode constant.
C. Choose a new installation position
D. Install the electrode according to the
installation instruction
.
different mA
reading
between sender
and receiver
A. Reviver transfer
error
B. Not up to 20mA
C. Incorrect setting
on sending
D. mA transfer error
A. Reset the transfer setting again
B. Loop resistance is too large, enlarge
the cable.
C. Set the corresponding of mA and
reading again.
D. Use the ammeter to check the current.