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MR810 Technical Manual Rev C REF 185042601
8
8 PERFORMANCE TEST PROCEDURE
8.1 INTRODUCTION
This section outlines the performance testing required for the MR810 as part of the annual maintenan c e or
after servicing of the humidifier.
If the MR810 is intended to be used with a heated wire circuit, perform the functional check (§ 8.2) and th e
Heater-wire Mode Performance check (§ 8.3).
If the MR810 is intended to be used with a no n heated circuit, perform the functional check (§ 8.2) and the
non Heater-wire Mode Performance check (§ 8.4).
8.2 FUNCTIONAL CHECK
Check the function of the humidifier buttons and indicators as follows, allow two minutes to complete the
test:
1. Apply power to the unit under test; as power is applied check that the "See Manual" indicator flashes
briefly.
2. Check the operation of the power button. Replace if necessary (refer to § 6.7).
3. Turn the device on. Press the Temperature Setting button and cycle through all three settings of the
humidifier. If pressing the Temperature Setting button has no effect, check the button seating, and
replace if necessary. (Refer to § 6.7).
4. Using a Fisher & Paykel Healthcare compatible heated breathing circuit (such as an RT202), check that
the LED in the heater-wire adaptor illuminates when plugged into the circuit. If the heater-wire
indicator remains off, cons ul t § 5 (Tro ubl eshooting ).
8.3 HEATER-WIRE MODE PERFORMANCE CHECK
Conduct this check if the MR810 is used with heated breathing circuits.
• The following test should be performed with either the RT202 kit (using the included MR290 chamber), or
the MR370 chamber and CR140 reusable circuit kit. Other chambers or circuits will give different results.
• The test should be conducted in an ambient temperature of 23 ± 2 °C with no drafts. Do not conduct the
test with a hot heater plate as this can affect the accuracy of the test. Allow the MR810 to cool before
starting.
• Turning the device on/off, changing temperature settings, changing the gas flow, or disconnecting the
heater-wire will require the test to be restarted.
• Allow 1 to 2 hours to complete the test.
8.3.1 EQUIPMENT REQUIRED
1. MR810 humidifier to be tested.
2. Single-use: RT202 single use breathing circuit or similar.
Reusable: CR900 reusable heater-wire elbo w wi t h 1. 5 m reusable tubing (CR 1 4 0 ki t).
3. Single-use: MR290 chamber filled with water (included in RT202 kit).
Reusable: MR370 reusable chamber filled to maximum water line.
4. Constant dry g as sour ce of 1 0 ± 2 l/min.
5. Fisher & Paykel Healthcare Therm ometer, part no 90 0M R033.