User`s guide

M3000A/M3046A/M3015A/M3016A Service Guide
Maintaining the Instrument 3-7
• IR lamp (M3015-XXXXX)
• Pump assembly and CO
2
scrubber (M3015-29303)
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The procedure for replacing the Pump and CO
2
Scrubber is found in "Repairing the
Instrument".
The effectiveness of the Pump and the CO
2
Scrubber gradually decreases over time. As a
result, periodic replacement is necessary.
Agilent Technologies recommends replacement as follows:
• After 15,000 to 20,000 hours of use, max. 20 000 hours (check “Pump Op Time”).
• If the Instrument requires repairs.
127( When fitting a new Pump and CO
2
Scrubber, it is recommended that you also check
the counter for the Infrared Lamp. If the counter for the IR lamp indicates an operating time
greater than 15 000 hours, it is recommended that you replace it at the same time. After fitting
the new part(s), go to Service Mode and reset the counter for the part(s) you have replaced.
The procedure for resetting the counters is found in "Repairing the Instrument".
When the PumpOpTime has been reset an INOP will be generated: “CO
2
OCCLUSION”.
To clear this INOP you must perform a flow check and store the flow in Service Mode (select
“Store Flow”).
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The infrared lamp can be exchanged only on M3015A Measurement Server Extensions with
CO
2
Data aquisition hardware revision A.01.10 or higher. If an IR lamp with part number
M3015-XXXXX is used on M3015A Measurement Server Extensions with CO
2
Data
aquisition hardware revision A.01.10 or lower, the instrument will give incorrect CO
2
readings.
The procedure for replacing the Infrared Lamp is found in "Repairing the Instrument".
The intensity of the Infrared Lamp gradually decreases over time. As a result, periodic
replacement is necessary.
Agilent Technologies recommends replacement of the Infrared Lamp as follows:
• After 15,000 to 20,000 hours of use, max. 20 000 hours (check “IRSourceTime”).
• If the Instrument exhibits a noticeably larger noise on the CO
2
wave.
• If the Instrument does not pass the accuracy test after calibration.
When fitting a new Infrared Lamp, observe the following recommendations:
• When fitting a new Infrared Lamp, it is recommended that you also check the counter for
the Pump. If the operating time for the Pump is greater than 15 000 hours, it is recom-