GASMAX II + GDS-IR Operation & Maintenance Manual, Revision 1.1
Page 35
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03
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Sensor Calibration Error
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Contact factory.
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04
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Zero calibration failure
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Zero readings must be within 10% of zero. For example, if the
range is 0-100 ppm, the zero reading cannot be above 10 ppm. For bridge-type sensors, it may be
possible to readjust the balance to restore a zero reading. Toxic sensors with high zero readings
must be replaced.
•
05
–
Span calibration failure
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Span readings must be within a range of from ½ to 2x the target
value. For example, if the target is 50 ppm, the sensor must output at least 25 ppm and no higher
than 100 ppm at the current preamp gain setting for calibration to proceed.
•
06
–
History data file full. Clear event log to remove.
•
07
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Sensor Channel Data CRC Fail
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Error in sensor data transfer. Contact factory.
•
08
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System Data CRC Fail
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Error in system data file. Contact factory.
•
09
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Custom Data CRC Fail
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Error in system data file. Contact factory.
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10- Linearization Data CRC Fail
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Error in system data file. Contact factory.
SOFTWARE RESET (“COLD BOOT”)
If the G M display shows ‘nonsense’ characters or one or more of the settings appear t
o be
corrupted, performing a “Cold Boot” will restore the default values in the non
-volatile memory
and may clear the problem. o perform a ‘Cold Boot”, perform one of the two following
procedures:
•
Disconnect power. Hold a magnetic wand over the EDIT key and apply 24VDC power. Hold the
magnet until the screen shows a “CO BOO ” message.
•
Hold the magnetic wand over the E key until the “Enter code sequence’ appears. Press four
“ P” keys to enter the MI E menu. Make a change in any value and then res
tore the value to
its original setting. Press the NEXT key to exit and THEN IMMEIDATELY PLACE THE MAGNETIC
W OVE HE E I KEY. Hold the magnet until the screen shows a “CO BOO ” message.
Note that a COLD BOOT will reset certain values to their default setting, including the MODBUS
address value. If a Smart Sensor is connected to a local sensor head, the GASMAX will reload the
sensor type, range, cal span value and other sensor
–
related values automatically.
Содержание GASMAX II + GDS-IR
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