Mettler Toledo M400/2(X)H Especificações Página 87
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Transmitter M400/2(X)H, M400G/2XH 87
© 03 / 2014 Mettler-Toledo AG, CH-8606 Greifensee, Switzerland Transmitter M400/2(X)H, M400G/2XH
Printed in Switzerland 30 031 683
14 Troubleshooting
If the equipment is used in a manner not specified by Mettler-Toledo the protection provided by
the equipment may be impaired. Review the table below for possible causes of common prob-
lems:
Problem Possible Cause
Display is blank.
– No power to M400.
– LCD display contrast set incorrectly.
– Hardware failure.
Incorrect measurement readings.
– Sensor improperly installed.
– Incorrect units multiplier entered.
– Temperature compensation incorrectly set or
disabled.
– Sensor or transmitter needs calibration.
– Sensor or patch cord defective or exceeds
recommended maximum length.
– Hardware failure.
Measurement readings not stable.
– Sensors or cables installed too close to equipment
that generates high level of electrical noise.
– Recommended cable length exceeded.
– Averaging set too low.
– Sensor or patch cord defective.
Displayed a is ashing.
– Setpoint is in alarm condition (setpoint exceeded).
– Alarm has been selected (see chapter 8.5.1
“Alarm”) and occurred.
Cannot change menu settings.
– User locked out for security reasons.
14.1 Cond (resistive) Error messages /
Warning- and Alarm list for analog sensors
Alarms Description
Watchdog time-out* SW/System fault
Cond Cell open*
Cell running dry (no measurement solution) or wires are
broken
Cond Cell shorted* Short circuit caused by sensor or cable
* According to the parameterization of the transmitter (see chapter 8.5.1 “Alarm”;
PATH: Menu/Configure/Alarm/Clean/Setup Alarm)
- Operation Manual 1
- Multi-parameter 1
- 1 Introduction 9
- 2 Safety instructions 10
- 3 Unit overview 14
- 3.2.1 Menu Structure 15
- 3.2.2 Navigation keys 15
- 3.2.6 ”Save changes” dialog 17
- 3.2.7 Security Passwords 17
- 3.2.8 Display 17
- 4 Installation instruction 18
- 4.1.2 Installation procedure 19
- (+ 0,5 mm/– 0,0 mm) 20
- (+ 0.02"/– 0.00") 20
- 4.2.1 Housing (wall mount) 21
- 4.3 Connector PIN denition 22
- 4.3.3 Analog Sensors 23
- InPro 3250i/SG/120 25
- Art.-Nr. 52 005 373 25
- 4.5.2.1 Example 1 27
- 4.5.2.2 Example 2 28
- 4.5.2.3 Example 3 29
- 4.5.2.4 Example 4 30
- 6 Quick Setup 34
- 7 Sensor Calibration 35
- (four electrode sensors only) 37
- 7.2.3 Process Calibration 38
- 7.3.1.1 Auto mode 39
- 7.3.1.2 Manual mode 40
- 7.4 pH calibration 41
- 7.4.1 One point calibration 41
- 7.4.1.1 Auto mode 41
- 7.4.1.2 Manual Mode 42
- 7.4.2 Two-point calibration 42
- 7.4.2.1 Auto Mode 42
- 7.4.2.2 Manual Mode 43
- 7.4.3 Process calibration 44
- (only for analog sensors) 46
- (only for analog sensor) 47
- 7.7 Sensor verication 47
- 8 Conguration 48
- 8.2.1.1 Analog sensor 49
- 8.2.1.2 ISM sensor 49
- 8.2.3.2 Concentration table 52
- 8.2.3.3 pH / ORP parameters 53
- or . key 54
- 8.2.4 Set averaging 55
- 8.3 Analog outputs 56
- 8.4 Set points 57
- 8.5 Alarm / Clean 58
- 8.5.1 Alarm 58
- 8.5.2 Clean 59
- 8.6 ISM set up 60
- 8.6.1 Sensor monitoring 60
- 8.6.2 CIP Cycle Limit 61
- 8.6.3 SIP Cycle Limit 62
- and . keys and press 63
- 8.7 Display 64
- 8.7.1 Measurement 64
- 8.7.2 Resolution 65
- 8.7.3 Backlight 65
- 8.7.4 Name 65
- 8.8 Hold analog outputs 66
- 9 System 67
- 9.2.1 Changing passwords 68
- 9.3 Set / Clear lockout 68
- 9.4 Reset 68
- 9.4.1 Reset system 69
- 9.5 Set date & time 69
- 10 PID setup 70
- 10.1 Enter PID setup 71
- 10.2 PID auto / manual 71
- 10.3 Mode 71
- 10.3.1 PID mode 72
- 10.4 Tune parameters 73
- 10.4.3 Proportional limits 73
- 10.4.4 Corner points 73
- 10.5 PID display 74
- 11 Service 75
- 11.1.3 Display 76
- 11.1.4 Keypad 76
- 11.1.5 Memory 76
- 11.1.6 Set OC 76
- 11.1.7 Read OC 77
- 11.1.8 Set analog outputs 77
- 11.1.9 Read analog outputs 77
- 11.2 Calibrate 77
- 11.2.1.1 Temperature 78
- 11.2.1.2 Current 78
- 11.2.1.3 Voltage 79
- 11.2.1.4 Rg diagnostic 79
- 11.2.1.5 Rr diagnostic 80
- 11.2.2 Calibrate unlock 81
- 11.3 Tech Service 81
- 12 Info 82
- 12.4 ISM sensor info 83
- 13 Maintenance 86
- 14 Troubleshooting 87
- 14.3.3 ORP messages 89
- 14.4 Amperometric O 90
- Error messages / 90
- Warning- and Alarm list 90
- 14.4.3 Trace oxygen sensors 91
- 14.5.1 Warning indication 92
- 14.5.2 Alarm indication 92
- 16 Specications 94
- 17 Default table 99
- Resistivity/Conductivity 103
- 18 Warranty 104
- 19 Buffer tables 105
- 19.1.2 Mettler-10 106
- 19.1.5 Hach buffers 107
- 19.1.6 Ciba (94) buffers 108
- 19.1.8 WTW buffers 109
- 19.1.9 JIS Z 8802 buffers 109
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