WI-191 Weekly maintenance

Work instruction Number 258
Page 1 of 3	Purpose: Weekly maintenance
Safety: Bio Hazard area
Instrument: Interrliner	Revision: 001, 2019

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Clean Fill nozzle

new-nozzle-er-uit

Clean fill nozzle

The use of a toothbrush and detergent is recommended.

Carefully scrub the fill nozzle inner part.
Use a tissue to dry the fill nozzle.

new-nozzle-er-uit

Clean waste separator

Removing

17402 Remove waste separator

Cleaning

A. Clean all parts with hot water and a brush.
B. Use some acid free vaseline on the screw-thread of the glass jar, the top rim of the glass jar, the O-ring for the HEPA filter and the black PVC pipe on the back.

Replacing

17402 Replace waste separator

C. If applicable replace the bacterial HEPA filter (For Maintenance Level 4: Exchange filter QWLV040002)

Check sensors

Check Fill stop sensor: Click the Check button, the OK sign is shown if the sensor value is in range.
Check temperature sensor: Value must be equal to the actual room temperature near the pipette belt.
The value can be set in tab Settings.
Check Diluter start sensor: This sensor is only used in EDTA mode. If the diluter does not start during the aspiration, the status of this sensor must be checked.
Click the Check button, the OK sign is shown if the sensor value is in range.
Check Diluent flow sensor: This sensor is only used in EDTA mode. When activated, the indicator Stand-by is activated and the indicator Flow is not. When the button Test is clicked, the indicator Flow must be shown as "activated". After finishing the test, both indicators must be shown as "activated".
Check Separator sensor: Click the Check button, the OK sign is shown if the sensor value is in range.
Check Flow sensor: Click the Check button, the OK sign is shown if the sensor value is in range.
Check Measure sensor:
Clean sensor first before executing this function.
Click the Check button, the OK sign is shown if the sensor value is in range.
Press the button Measure. The pipette currently at the measure position will be measured.
The results are displayed in graphical form:

	Measure head start position correct
	Measure head start position wrong

When a test pipette is installed at the measuring position the result of the test pipette is displayed in the field "ESR (mm)".

Loep

When the sensor is out of range and a red "X" is shown, the sensor values can be checked by turning on the service mode.

Inspect or replace sample probe or outer needle

Inspect needle condition. If necessary replace the sample probe or outer needle.

Check and clean instrument

Prepare disinfectant: (if not already prepared).
This disinfectant is for cleaning of all external parts that are exposed to blood.

Go to tab [Maintenance] and perform the [End-of-day wash] procedure.
Check system for leakage.
- Inspect the peristaltic pump tubes and connections for leaks.
- Check that liquid does not run back after the pumps have stopped.
Clean the outer needle with disinfectant
Check tubing from the syringe for trapped air bubbles.
Check Diluent syringe for trapped air bubbles.
If trapped air bubbles are found, go to tab [Maintenance], click button [Prime / Clean] and perform the [Prime Diluent/Diluter] function.
Wipe outer surface and stainless steel plate below the pipettes with disinfectant.
Check (or replace if needed) two drip trays (ESRI010318)