WI-224 Level 3 maintenance
Work instruction Number 224 (PDF-version)
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Page 1 of 8
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Purpose: Maintenance level 3
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Safety: Bio Hazard area
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Instrument: Interrliner
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Revision: 004, 2019
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Clean Fill nozzle and exchange O-ring Fill Nozzle
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6. 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.
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Exchange bacterial filter
On waste bottle (If used):
Exchange bacterial filter QWLV040001 on the waste bottle assembly.
Exchange Rinse and Saline tube assembly
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New rinse pump tube assembly ESRI090902.
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New saline pump tube assembly ESRI090903
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New tube replacement:
- Open left cover.
- Pull pump tube slightly downwards and at the same time towards the front of the unit to release the tube out of the pump plate holder.
- Remove the old tube from the peristaltic pump rotor.
- Disconnect the tubing at both ends of the tube connectors.
- Connect new tubing to both ends of the connectors.
- Place one end of the tube in the pump plate holder.
- Pull the new tube over the peristaltic pump rotor.
- Pull pump tube slightly downwards and at the same time towards the back of the Interrliner.
Fill and clean
Starrsed Cleaning Agent preparation Interrliner ESR analyzer unit: Fill and clean: This cycle takes about 90 minutes.
- Fill the clean adapter EHST110907 with hot de-ionized water. (+/- 150 ml, 80 °C)
- Add 15 ml Starrsed Cleaning Agent (QRR 010905) to the hot water in the adapter.
- Place the cap on the adapter and mix well.
- Put the adapter with cleaning solution on the lower tube holder.
- Select tab, , button .
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Start Fill and clean procedure:
- Select button OK.
- The needle goes down and the process is started.
- When all the pipettes are filled, the needle goes back to the home position.
- After the Fill & clean process is finished, a notification is given to stop the procedure.
- Remove the adapter from the needle assembly and press "Stop".
The instrument is ready for normal operation.
Sensor check
Vacuum pressure check
- Go to tab -> . Select box.
Flow: 0980 ± 60 Abs: 0320 ±10 If the flow is not in range there might be a blockage in the vacuum flow line to the flow sensor.
Fill Stop sensor check
- Go to tab -> . Select box.
Fill stop sensor FS 90..140..165
Diluter Start sensor check
- Go to tab -> . Select box.
Diluter start sensor 400-550-700
Measure sensor check
- Go to tab -> Selectbox.
Measure sensor MS 50 ±10
Temperature sensor check
- Go to tab -> Selectbox.
Temperature sensor TS [Room temperature]
Diluent flow sensor check
- Go to tab -> Selectbox.
Press test. When test is finished, signal Down and signal Up must be green.
Separator check
- Go to tab -> Selectbox.
Separator sensor <200 600 >700
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Clean waste separator and exchange Waste cassette assembly
Be careful, as there may be blood in the cassette. First, make up some disinfectant and put this in the waste separator. Press to pump disinfectant through the pump cassette.
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Clean Separator
The waste system must be cleaned before replacing the waste pump cassette.
- Open the left cover and remove the waste container. The waste separator is now visible.
- Lift the stainless steel vacuum tube with use of the lever.
- Pull the waste separator towards the front of the ESR analyzer unit. (Note: The separator has two sensor connectors at the rear)
- Remove bacterial HEPA filter.
- Fill waste separator with 100ml disinfectant or 100 ml water with 2% bleach.
- Replace bacterial HEPA filter.
- Lift left cover.
- Lift stainless steel vacuum tube up.
- Insert the waste separator sliding it over the support shelf.
- Push the waste separator towards the rear, with the sensor connectors in the holes.
- Release the stainless steel vacuum tube.
- Replace the waste container.
- Close left cover.
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Exchange Waste Cassette and blotting washer
- Disconnect the two tubes from the waste pump cassette.
- Press levers (at three o'clock and nine o'clock positions) and pull at the same time.
- Remove the old blotting washer ESRI090026 around the motor shaft.
- Clean peristaltic pump motor shaft using a tissue soaked in alcohol.
- Place the new blotting washer ESRI090026.
- Insert new waste pump cassette ESRI090921 until it clicks into place.
- Remove the protection caps on from the tubes.
- Connect the two tubes from the waste pump cassette on the luers at the steel plate under the waste pump.
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Exchange Pinch valve tube
Replace the pinch valve tube ESRI010246
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Inspect or replace sample probe or outer needle
A faulty or broken needle can cause a fill time-out error or a dilution error. 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 and perform the 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 click button and perform the function.
- Wipe outer surface and stainless steel plate below the pipettes with disinfectant.
- Check (or replace if needed) two drip trays (ESRI010318)
Exchange air filter
Air filter replacement QWLV040003
- Pull both tube connectors out of the blue disk filter.
- Place new blue disk filter
- Reconnect the tube connectors on the filter
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