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Diagnostics and Error Messages

The ACCU-CAL™ 150 radiometer continuously conducts internal self-diagnostics. If the unit detects an internal

problem, it will display one or more of the following error codes in the upper left corner on the display. Error

codes are two alphanumeric characters proceeded by an asterisk (*). If two errors are experienced at the

same time, both error codes will flash alternately on the screen every 0.5 seconds. Certain error codes may

indicate problems that require returning the unit to the factory for service.

Low Battery Indicator (*LB – Low Battery)



If this happens during an exposure run, the reading is still valid. The low battery indicator is designed to

illuminate early enough so that your data remains valid. Under severe low battery conditions, the unit

does not operate. Therefore, confirm that the unit flashes "RUNNING" before initiating a reading.

Over-Temperature State (*OT – Over Temperature)



If the internal temperature of the ACCU-CAL™ 150 exceeds 65°C during an exposure run, the unit will emit

a steady beeping tone after the run. However, the data it has collected is accurate and can be read by

pressing the select button. When doing this, the beeping tone stops and you can scroll through the data

readings. In addition, if the internal temperature of the unit exceeds 75°C, the unit beeps once then

displays the internal temperature continuously. The unit will not operate until the internal temperature

drops below 75°C. The maximum internal temperature is 80°C. If the internal temperature exceeds 80°C,

the warranty is voided.

CAUTION:

If you press the reset button to initiate RUN mode before the unit cools to 75°C, all data

from the previous exposure run is cleared from memory. The unit beeps and again continuously displays

the temperature.

Over Range State (*OR – Over Range)



The over range error message will be displayed if the peak irradiance value is too large for the instrument

to measure. Note that a unit's full scale range will be marginally higher than the normal range. Readings

that exceed the nominal range and do not result in an *OR error are valid.

Other Error Codes



For all other error codes, please contact Dymax for assistance.

Installation and operating Instructions for ACCU-CAL™ 150 Radiometer Communication Software

(USB PP2 V.2.00 )

The software has been designed for computers running Windows 2000, XP, and Vista and will not work with

Windows 95, 98, or NT.

Dymax ACCU-CAL™ 150 Radiometer User Guide