Owner's manual

9
MAINTENANCE & TROUBLESHOOTING
Parr Instrument Company
52
Rinse Tank Level May Be Low.
The controller decrements the rinse tank counter each
time the bomb is rinsed. This message will be issued
when the counter is at or below zero when the bomb
rinse sequence is executed. This message is a reminder
that the rinse tank needs refilling, followed by a manual
resetting of the bomb rinse counter.
There Is A Problem With The Bucket Thermistor.
Possible electrical open. (1416E left side of bucket at
bottom):
Check connection to board.
•
Check quick disconnect.•
Replace probe.•
There Is A Problem With The Jacket Thermistor.
Possible electrical open or short. 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.
Jacket Fill Error.
A timer is started whenever the jacket water tank needs
to be filled or topped off. If the jacket fill time exceeds
ten minutes, this error or warning will be issued and
the jacket fill process is halted. If the heater and pump
are on, they are turned off. Pressing the OK key on
the warning/error prompt box will restart the jacket
filling process. The heater and pump can’t be started
until the jacket water tank is completely filled. Repeated
or persistent errors or warnings are an indication of a
problem. See Jacket Fill and Cooling Problems section
on page 47.
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.
You Have Exceeded The Run Data File Limit (1000
Files).
The memory set aside for test runs has been filled. Use
the memory management techniques to clear out non-
current tests.
Bomb EE Standard Deviation Warning.
The relative standard deviation for the calibration runs
in memory for the indicated bomb exceeds the preset
limit.
Sample Weight Warning.
The entered sample mass exceeds the value entered via
the SAMPLE WEIGHT WARNING ABOVE key on
the data entry controls page. This warning threshold is
normally 2 grams.