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| 49 |
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B2 | MAINTENANCE SCHEDULE CHECKLIST |
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| (PHOTOCOPY AND FILE IN MAINTENANCE RECORDS) |
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| Type of service check: | qmonthly | q3 monthly | q6 monthly | qyearly | |||||
| Humidifier Serial Number:___________________________ | Date: ______________ |
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| Step |
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| Method | Pass | Fail |
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| Monthly |
| Check Temperature Probe |
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| Refer Appendix B1.1 | q | q | ||
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| Check Reusable Heater Wire |
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| Refer Appendix B1.1 | q | q | ||
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| Check Heater Wire Connections |
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| Refer Appendix B1.1 | q | q | ||
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| Check Power Cable |
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| Refer Appendix B1.1 | q | q | ||
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| Perform |
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| Refer Appendix B1.1 | q | q | ||
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| Three Monthly |
| Perform Temperature Probe Test and Check |
| see § 4.3 and Appendix B | q | q | |||
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| Temperature Probe |
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| Annually |
| Performance Check |
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| see § 6 | q | q | ||
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| Electrical Safety Checks - as required |
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| Method |
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| Pass | Fail |
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| Earth resistance test |
| Measure the resistance from the earth pin on the mains plug to: |
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| i The heaterplate.(0.2 Ω maximum) (To get a good contact on the | q | q | |||
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| anodised heaterplate, clip under the front edge of it.) |
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| ii The earth stud on the base of the humidifier(0.2 Ω maximum). | q | q | |||
| Insulation resistance test |
| Use a 500V DC tester to measure the resistance from the phase pin |
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| on the mains plug to: |
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| i The heaterplate (10 M Ω minimum). |
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| ii The earth stud on the base of the humidifier (10 M Ω minimum). | q | q | |||
| Earth Leakage test |
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| Has to be measured using an electrical safety tester as per IEC601. | q | q | ||||
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| Measure earth leakage with the earth probe of the tester on the |
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| heaterplate. Earth leakage current is measured at normal operating |
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| voltage and frequency of supply. |
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| Should be 0.5 mA maximum in no fault condition. |
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| Signature:______________________ |
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Ref. 185040646 MR730/720/700/480 Technical Manual ¯ Revision F ¯ Issued March 2001
