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6725 Semi-micro Calorimeter Instruction Manual
10-1
TROUBLESHOOTING
Error List
The calorimeter will run a number of diagnostic checks upon itself and will advise the
operator if it detects any error conditions. Most of these errors and reports will be self-
explanatory. The following list contains errors that are not necessarily self-evident and
suggestions for correcting the error condition.
A Misfire Condition Has Been Detected
This error will be generated in the event the
total temperature rise fails to exceed 0.5°C after the first minute of the post-period.
• Fuse wire not intact or improperly formed
• Breakdown of the insulator and o-ring on the insulated electrode assembly
• Bomb not filled with oxygen
• A bomb leak.
• Poor bucket stirring
• Ignition lead wires have broken internal strands
A Preperiod Timeout Has Occurred.
The calorimeter has failed to establish an
acceptable initial temperature, prior to firing the bomb, within the time allowed. Possible
causes for this error are listed below:
• A bomb leak
• Poor bucket stirring
• Lid not tight
• Initial bucket temperature outside the acceptable range (1-2 deg C below the
jacket setpoint)
The Current Run Has Aborted Due To Timeout.
The calorimeter has failed to establish
an acceptable final temperature within the time allowed. Possible causes for this error
are listed below:
• A bomb leak.
• Poor bucket stirring.
There Is A Problem With The Bucket Thermistor.
Possible electrical open or short. This
errors will result if the temperature probe response is not within the expected range.
Probe substitution can be useful in determining the cause of the problem (probe or
electronics). The valid working range of the probe resistance is 1000 to 5000 ohms.
• Check connection to board.
• Check quick disconnect.
• Replace probe.
There Is A Problem With The Jacket Thermistor. Possible electrical open or short. This
errors will result if the temperature probe response is not within the expected range.
- TABLE OF CONTENTS 2
- PREFACE 4
- Explanation of Symbols 5
- Safety Information 5
- INSTALLATION 7
- Communication Connections 9
- Printer Connections 9
- Balance Connections 9
- Bar Code Port 11
- Computer Connections 11
- QUICK START 19
- OPERATION 21
- Performing an analysis 23
- MENU DESCRIPTIONS 28
- Temperature vs. Time Plot 29
- Temperature Plot Setup Menu 29
- Operating Controls Menu 30
- Spike Controls 31
- Standardization Correction 37
- Determination Correction 38
- Calculation Factors Menu 39
- Net Heat/Dry Heat Factors 40
- Data Entry Controls Menu 40
- Reporting Controls Menu 42
- Communication Controls Menu 43
- File Management Menu 44
- Run Data File Manager 45
- Diagnostics Menu 46
- CALCULATIONS 49
- Manual vs. Fixed Corrections 50
- Definitions 51
- ASTM, ISO and Other Methods 55
- REPORTS 57
- MEMORY MANAGEMENT 59
- MAINTENANCE 60
- TROUBLESHOOTING 61
- TECHNICAL SERVICE 63
- PARTS LISTS 64
- DRAWINGS 66
- 493E Plug 69
- Table 1 – Default Settings 73
- Table 1 – Continued 74
- Value -43.5 75
- Revision 03/15/11 76
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