AUX E&H Series Provozní pokyny Strana 68
- Strana / 92
- Tabulka s obsahem
- KNIHY
Hodnocené. / 5. Na základě hodnocení zákazníků
8 Diagnosis and corrective maintenance
Diagnosis
• Diagnosis refers to the identification of instrument malfunctions and defects.
Corrective maintenance:
• replacement of parts diagnosed to be defective;
• testing of instrument and measuring system function;
• restoration of complete functionality.
Diagnosis based on the error table below and depending on difficulty and measuring
equipment at hand is to be performed by:
• trained operator personnel
• operator’s electricians
• company responsible for system installation/operation
• E+H Service.
Please refer to the tables in chap. 8.2 and 8.3 for identification of spare parts required.
Warning:
• Disconnect the instrument from the
power source before opening it
up. Work under tension may only
be performed by trained
electricians.
• Switched contacts may be
supplied from external circuits.
These circuits must also be
de-energized before work on the
terminals is performed.
Caution: ESD!
• Electronic components are
sensitive to electrostatic
discharges. Personal protective
measures, such as discharge via
PE or permanent grounding using a
wrist strap, are to be taken.
• For your own safety, use only
original spare parts. Original parts
will guarantee functionality,
accuracy and reliability after
repairs.
8.1 Diagnosis
The table below will help you diagnose problems and specifies the spare parts required. Please
refer to chap. 8.2.3 and 8.3.3 for information on the exact designations of the spare parts and
their installation.
Error Possible cause Tests and / or remedial measures Equipment, spare parts, personnel
Display dark, no LEDs
active
– No mains voltage Check if mains voltage is available Electrician / e.g. multimeter
– Wrong supply voltage / voltage
too low
Compare mains voltage and rating
on nameplate
Operator (utility company
specification or multimeter)
– Connection fault Terminal not tightened;
insulation clamped in terminal;
wrong terminal used
Electrician
– Instrument fuse defective Replace fuse,
first compare mains voltage and
rating on nameplate
Electrician /
see drawings in chap. 8.2.1 and
8.3.1 for corrected fuse
– Power supply unit defective Replace power supply unit,
using correct variant
On-site diagnosis by E+H Service
(test module required)
– Controller defective Replace controller,
using correct variant
On-site diagnosis by E+H Service
(test module required)
– CPM 253: ribbon cable
Pos. 310 loose or defetive
Check ribbon cable,
replace if necessary
See spare parts for CPM 253
Display dark, but LED(s)
active
Controller defective
(Module: LSCH/LSCP)
Replace controller On-site diagnosis by E+H Service
(test module required)
Diagnosis and corrective maintenance Liquisys M CPM 223 / 253
66 Endress+Hauser
- Endress Hauser 1
- Table of contents 3
- 1 General information 4
- 1.5 Product structure 5
- 2 Safety 6
- 2.5 Immunity to interference 7
- 2.6 Declaration of conformity 7
- 3 Installation 8
- 3.2 Dimensions 9
- 3.3 Mounting 10
- PM253E03.CHP 11
- 3.3.2 Mounting examples 12
- Endress+Hauser 11 13
- 3.4 Electrical connection 14
- 131094-4G 15
- Construction of special 16
- CPK1_12e.EPS 16
- Fig. 3.13 16
- • If the software setting 18
- Setpoint 19
- 4.3 Keys 20
- PM253ED4.CHP 21
- 4.5 Operating concept 22
- 4.5.2 Access codes 23
- 4.5.3 Menu structure 23
- • If a change is made but not 23
- • See the appendix of these 23
- 5 Instrument configuration 25
- RELAY2.CDR 26
- Oper.Mode 27
- Glass A5 28
- Fig. 5.4 29
- Alarm signalling and 29
- 28 Endress+Hauser 30
- PM253E5A.CHP 31
- Fig. 5.7 32
- User-defined current output 32
- Sel. Out2 33
- Tabelle (3) 34
- Table (3) 34
- 5.5 Monitoring functions 35
- Rel.Assg 36
- Curr.Assg 36
- CleanTrig 36
- 5.5.2 Check 37
- • Due to its semiconductor 37
- A.Thresh 38
- Err.Delay 38
- LowAlarm 38
- HighAlarm 39
- ProcMonit 39
- Tmax Low 39
- Tmax High 39
- GRENZ-E.CDR 40
- not allowed 41
- Pulse length modulation 42
- Pulse frequency modulation 42
- PM253E5B.CHP 43
- 5.6.4 ChemoClean function 44
- • Use relays 3 (water) and 44
- • When “Economy” is selected 44
- LC PV R2 45
- LC State 46
- 120 R239 48
- 0.3 R2310 48
- Clean = ChemoClean (5) 49
- Neutra controller (6) 49
- ChemoClean (5) 49
- Proc.Type 51
- 5.7 Service 52
- S.Default 53
- Contr E1 54
- SerNo E113 54
- LSG E114 54
- 5.10 Calibration 55
- the user is 55
- ≤ 0.05 and value 56
- 59.18 N2 59
- PV Offset 60
- 6 Interfaces 61
- Endress+Hauser 61 63
- 62 Endress+Hauser 64
- Endress+Hauser 63 65
- 64 Endress+Hauser 66
- Endress+Hauser 65 67
- 8.1 Diagnosis 68
- Endress+Hauser 67 69
- 223EXPHE.CDR 70
- 8.2.2 Disassembly of CPM 223 71
- 8.2.3 Assembly of CPM 223 71
- 8.2.4 Spare parts for CPM 223 72
- 253EXPHE.CDR 73
- 8.3.2 Disassembly of CPM 253 74
- 8.3.3 Assembly of CPM 253 74
- 8.3.4 Spare parts for CPM 253 75
- 8.4 Spare parts orders 76
- 8.6.1 pH/redox transmitter 77
- 8.6.2 pH/mV electrodes 77
- 8.6.3 Assembly 77
- 8.6.4 Liquid KCl supply 77
- 9 Accessories 79
- 10 Technical data 81
- 80 Endress+Hauser 82
- Endress+Hauser 81 83
- 11 Appendix 84
- Endress+Hauser 83 85
- 84 Endress+Hauser 86
- Endress+Hauser 85 87
- 12 Index 88
- PM253E12.CHP 89
- Declaration of contamination 91
- BA 194C/07/en/07.02 92
- Printed in Germany / CV5 / DT 92
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