Nipro SURDIAL, Руководство по обслуживанию, Страница: 275 / 334

10.14-1
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CLV
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10.14. Leak test and gap adjustment of clamp
10.14.1. Leak test of clamp
Leak test of clamp is performed to find whether gap adjustment of the clamp is required based on
the following procedures.
(1) Required devices
Manometer
Connection means
Forceps
Syringe
Stopwatch
(2) Turn on power SW of machine.
(3) Turn on [DIALYSIS] SW to shift to dialysis wait process.
(4) Set manometer, connection means and syringe to clamp as shown in Fig. 10.14-1 (a).
(5) Turn on BUBBLE SW to operate the clamp after bubble introduction into venous tube.
(6) Set manometer indication to 150mmHg by pressurizing the venous tube using the syringe
followed by clamping line between the syringe and manometer using forceps to maintain the
pressure as shown in Fig. 10.14-1(b).
(7) After the clamping, leave to stand for about 90 seconds to record the pressure A.
(8) Additionally leave to stand for about 120 seconds to record the pressure B.
(9) Additionally clamp line between the clamp and manometer using forceps as shown in Fig.
10.14-1(c).
(10) After the clamping, additionally leave to stand for about 120 seconds to record the pressure C.
(11) Derive leak value from the recorded pressures A, B and C. If the value is not acceptable,
adjust the clamp gap and re-check.
Leak value (mmHg) = Leak value from clamp and test setup Leak value from test setup
= (A B) (B C)
Acceptable range
Clamp leak value
1.00mmHg
Fig. 10.14-1 Test setup for clamp
leak test