Parr-instrument 6400 Manual do Utilizador descarregar pdf (Página 73)

6400 Calorimeter Instruction Manual

10-4

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

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. These 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 the board

• Check quick disconnect

• Replace probe

• Replace board

There Is A Problem With The Jacket Thermistor

Possible electrical open. These 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 the board

• Check quick disconnect

• Replace probe

• Replace board

A/D Initialization Failed

Shortly after power is applied to the calorimeter controller and the operating system has

started, the CPU attempts to read the unique I/O board calibration information from the

I/O board. If the I/O board is not connected to the CPU, or the information on the board

is not valid, this error will be issued.

Bomb ID – Has Been Fired – Times Which Exceeds the Bomb Service Interval

The calorimeter controller keeps track of how many times the bomb has been fired.

When this count exceeds a preset limit (usually 500) this message will be issued each

time the bomb is used for a test. Perform bomb maintenance and reset counter on

Calibration Data and Control page for appropriate bomb number.

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Parr-instrument 6400 Manual do Utilizador Página 73