Fresenius Vial INJECTOMAT 2000 Anasthesie, Техническое руководство

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Page : 62 NT 0928 Rev.A0
5.18. Flow rate control: flow rate measurement using a test tube
5.18.1. Equipment used
q Stop clock
q Test tube or beaker with 1 ml 0.5 ml graduating
q Liquid: distilled water +/ oil)
q Luer Lock type plastic syringe (50 or 20 ml)
q Catheter extension with Luer Lock end piece (length 150 cm, inside diameter 2.5 mm).
q Needle
flow rate value (x) needle type
x < 30 ml/h G 26
x
≤
30 ml/h
G 18 ou G 21
5.18.2. Installation
1. The equipment should be installed according to the installation drawings shown in 5.18.3.
q
Remark: Make sure that the horizontal installation plane is respected.
2. Fill the syringe with 50 ml of distilled water. Prime if necessary to eliminate any air bubbles.
3. Secure the female Luer Lock end piece of the catheter extension onto the syringe and the male Luer
Lock end piece onto the needle.
4. Install the syringe on the device.
5. Fill the test tube with water ensuring that the needle is dipped in the liquid (1 cm) and add several
drops of oil in order to create a greasy film on the surface of the liquid. In this way the user will avoid
any measurement error due to evaporation of the liquid.
6. Place the needle inside the test tube.
5.18.3. Operating mode
1. Select the flow rate
q Important: for low flow rates (5 ml/h) validate and wait for the infusion to stabilize for 1 hour. If
possible, use a smaller test tube guaranteeing greater precision in ml reading. For higher flow
rates, 10 to 30 minutes are sufficient for this stabilization.
2. Start infusion by pressing on the START/CONFIRM key and set off the stop clock at the same time
(if necessary make a note of the stop clock start value).The length of the test is determined by the
time necessary for a 50 ml infusion in the test tube.
3. Calculate the difference between the design value and the real value.
4. The error percentage is calculated from this difference (Measurement error +/-1% ),
Time in hours
Measured value - Design value
Ddesigned value
X 100 = pourcentage
Real flow rate =
50 ml