Endress+Hauser TopClean S CPC 30, Руководство по эксплуатации

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8 Trouble-shooting TopClean S CPC 30
104 EHauser
8.1.3 Instrument-specific errors
Error Possible cause Tests and / or remedial action Equipment, spare parts,
personnel
Display dark, no LEDs
active No mains voltage Check whether mains voltage is
applied Electrician / e.g. multimeter
Incorrect supply voltage or too low Compare actual mains voltage with
nameplate data
Connection defective Terminal not picked-up; insulation
clamped
Instrument fuse defective (non-Ex) Replace fuse after comparing mains
voltage and nameplate data Electrician / suitable fuse; see fig. 31
(p. 108) and fig. 34 (p. 111)
Device fuse defective (Ex system) Replace fuse Use Ex fuse; electrician required
Power unit defective Replace power unit, pay attention to
variant On-site diagnosis: all 6 red LEDs on
the M3G module must be lit
Central module defective (if all 6
LEDs on the power unit M3G are lit) Replace central module
Pay attention to variant On-site diagnosis by E+ H Service
(test module required)
Ribbon cable loose or defective Check ribbon cable Cable soldered onto the site of the
M3G module
Display dark, but
LED active Central module defective
(Module: M3Cx-x) Replace central module M3Cx-x On-site diagnosis by E+ H Service
(test module required)
Display functioning, but
no change in display
and/or instrument
cannot be operated Instrument or module in instrument
not correctly installed Check module connections See device view on page 108
Operating system in impermissible
state Switch instrument off and on. Possibly EMC problem: if problem
persists, have installation checked by
E+H Service
Instrument gets hots Incorrect mains voltage or too high Compare mains voltage and
nameplate data
Power unit defective Replace power unit All 6 red LEDs on the M3G module
must be lit
Incorrect measured pH
/ mV value and / or
measured temperature
value Transmitter module defective
(module: MKP2), firstly please carry
out tests and take measures as
described in chap. 8.1.2 Test measuring inputs:
– Connect pH, Ref and PA directly on
the instrument with wire jumpers:
Display must be pH 7
– Resistance 100
Ω
of terminals 11 to
12 + 13.
Display must be 0 °C
If test negative: Replace module
MKP2, bushing using the device view
on page 108
Current output,
Current value incorrect Calibration incorrect:
– Load too high
– Shunt / short-circuit to frame in
current circuit
Test with integrated current simulation,
connect mA meter directly to current
output If simulation value incorrect: new
module M3Cx-x
required.
If simulation value correct:
check current circuit for load and
shunts
Incorrect operating mode Check, whether 0–20 mA or 4–20 mA
is selected
No current output signal Jumper incorrectly set Change coding See chap. 8.4.2
Current output stage defective
(Module: M3CH-x) Test with integrated current simulation,
connect mA meter directly to current
output If test negative:
replace module M3CH-x
(Check variants, see spare parts list
in chap. 8.3)
Instrument with PROFIBUS
®
interface
PROFIBUS
®
instruments do not have a
current output
For information, see "DIAG" /
instrument version