9 Recommended Maintenance Checklist

This sheet can be copied and used to keep a record of the maintenance procedures carried out on your MR850 Humidifier(s), and probes. Place the serial number and the date that the maintenance was carried out in the spaces provided. Refer to section 5 for a description of the maintenance procedures required.

9.1Humidifier Check (Annually)

Serial

Visual Checks

Performance

Electrical Safety

Signature

Number

 

 

Checks

 

 

and Date

 

1.

Mains Cable

1.

Calibration

1.

Earth Resistance

 

 

2.

Heater Plate

 

Check

2.

Insulation Resistance

 

 

3.

Heater Wire

2.

Display Check

3.

Earth Leakage

 

 

 

Adaptor

 

 

4.

Other tests as required

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

9.2Probe Check (Every six months)

Batch ID

Visual Checks

Performance Checks

Signature

 

 

 

 

 

and Date

 

1.

Check Glass Thermistor

1.

Temperature Accuracy

 

 

2.

Check for Foreign Deposits

2.

Flow Accuracy

 

 

3.

Check Cable for Kinks, etc.

 

 

 

 

4.

Check Probe Connectors

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MR850 Technical Manual * Revision J * Issued November 2005 * Ref. 185041340 (185041713 internal)

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