Message RecommendedAction
SYSTEMS:IR PORT FAILURE Cyclethe power.
SYSTEMS:BATTERY NOT
INSTALLED
Cyclethe power.
Checkthat the battery is properly connected.
Replacethe battery.
CHANNELS:FAILURE Cyclethe power.
CALIBRATION:DUE FOR RECAL Checkthat the instrument date is correct.
Recalibratethe instrument and set the recalibration date accordingly.
CALIBRATION:INVALID
PARAMETERS
Checkthe correctness of the calibration parameters for each channel.
GPIB:NOT INSTALLED Normalmessage if the IEEE-488 option is not installed.
MEMORYDATA:QUESTIONABLE Resetthe memory by pressing EXIT when prompted.
MEMORYDATA:INVALID DATA Resetthe memory by pressing ENTER when prompted. (This action requires that important data
suchas probe coefficients be restored.
BUTTONS:[button name] Checkthe stated button to ensure that it is not stuck. Loosen as necessary.

11.1.2 Start-up Error Messages

The followingmessages may appear after the self-test. If the recommended ac-
tion fails to correct the error,con tacta Hart Authorized Service Center (see
Section 1.3) for assistance.
Message RecommendedAction
CALIBRATIONEXPIRED Checkthat the instrument date is correct.
Recalibratethe instrument and set the recalibration date accordingly.
INVALIDCALIBRATION PARAMETERS Checkthe correctness of the calibration parameters for each channel.
MEMORYQUESTIONABLE Resetthe memory by pressing EXIT when prompted.
MEMORYDATAINVALID, MEMORY WILL BE
CLEARED
Resetthe memory by pressing ENTER. (This action requires that important data
suchas probe coefficients be restored.)
11.2 Downloading Auto Logged Data
The 1529 “Chub-E4”Thermometer Readout stores up to 8,160 autolog read-
ings or100 demand log readings in its memory. These readings can be down-
loaded to acomputer using the RS-232 serial port.
The followingsteps should be followed to download logged data using the se-
rialport:
1. Connect the1529 to a COMport on thecomputer using the serial cable.
2. Run a terminal program such as Windows®Terminal or HyperTerminal®.
141
11 Troubleshooting
Downloading Auto Logged Data