
102105-0 DP-IR MANUAL REV M
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FLOW ERROR icon is on
Very slow to purge out
• Filter needs to be changed
• Plugged probe
• Internal leak
• Check lters and replace if
necessary
• Clean probe lter and clear or
replace the tubing
• Check tightness of internal
Hydrophobic lter
Maintenance
In order to maintain the DP-IR in good working condition, the following maintenance should be
performed as indicated:
Maintenance Item Frequency
Self-Test and Calibration Daily to ensure the instrument is
functioning properly
Battery recharge Recharge to full capacity after each use
Replace dust lter Daily or more often as needed depending on
conditions
**Note**
There is a hydrophobic lter inside the front cap behind the dust lter. Replace this lter should
it clog due to water or dust. There is a back up hydrophobic lter inside the instrument housing
to prevent water damage to the instrument. The exterior lters should be changed as needed by
the user.
**Note**
Do not operate the instrument without the dust lter or without the hydrophobic lter.
**Warning**
To reduce the risk of ignition of a ammable or explosive atmosphere, batteries
must be changed or recharged only in a location known to be non-hazardous.
**Caution**
Only use HEATH battery pack P/N 102961-0.
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