DATREND Systems vPad-IV, Operating Manual

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vPad-IV OPERATORS MANUAL
If it becomes necessary to drain vPad-IV for disassembly and/or shipment, per (
Figure 18
) DO NOT drain
by using a syringe to withdraw the water from the Module input. Instead, use the syringe to inject air into
the input until all water within the unit has been ejected, as observed at the output of the Module.
CAUTION: Damage to vPad-IV caused by failure to observe the above priming and/or
draining instructions will not be covered under warranty.
3.5.5 Wetting the Flow Sensor
vPad-IV may be used to test infusion devices immediately after priming. However, on initial receipt of the
product, or after any period of dry storage which exceeds more than a week, best performance will be
obtained if the Module's
flow sensor is first "wetted" before performing any tests.
A vPad-IV Module may be "wetted" by priming the instrument as described in Section 3.5.4 and then
running a Flow Rate Test at 400 ml/hr for approximately 10 minutes. See Section 4.3.4 on page 32 for
instructions on setting up a Flow Rate Test.
An effective method of "wetting", which may be the preferred method if vPad-IV has spent a significant
amount of time in dry storage, is to clean the instrument according to the instructions given in the
maintenance chapter, specifically Section 5.3 on page 76. After cleaning, a Flow Rate Test at 400 ml/h for
about one minute will prepare the flow sensor for subsequent tests to follow.
Once a vPad-IV Module has been primed and "wetted", it is preferable to leave the instrument filled with
water between uses for as long as practical. While full, vPad-IV may be moved from one position to another
(e.g. from test bench to storage shelf) provided input tubing sets are connected and Modules remain upright
while the analyzer is being relocated.
3.5.6 Cleaning the Fluid System
The fluid system of vPad-IV should be cleaned on a regular basis. The frequency of cleaning will depend on
the quality of water used with vPad-IV, ranging from about once every 6 months for distilled water up to
once per month for ordinary "tap" water. A thorough cleaning will be necessary if vPad-IV becomes
accidentally contaminated with an incompatible medical fluid such as dextrose (D50W) or TPN solution.
Refer to the maintenance chapter on page 75 for complete instructions.
Setup/Chapter 3
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