Chapter 4: Parameters Setting, Service and Preventive Maintenance
4-10
3.
Electrical Safety Test - Leakage Current
Equipment required: Fluke Safety Analyzer, Model 505 or equivalent
2 Liters of room temperature saline
Setup:
Plug the Hyperthermia Pump
™
into AC outlet on the panel
of the Safety Analyzer.
CAUTION:
Before applying voltage to Safety Analyzer, make sure input line
voltage is correct for the
VOLTAGE OF UNIT UNDER TEST
.
a.
Earth Leakage Currents:
i.
Plug the Safety Analyzer into an appropriate power source,
turn Analyzer power to ON. Hyperthermia Pump
™
power
switch to STANDBY.
ii.
Switch selector on Analyzer to CHASSIS or LEAKAGE (
μ
A).
Connect a single red lead to the SINGLE LEAD input jack
and attach large clamp to equipotential ground terminal on
the Hyperthermia Pump
™
.
iii.
Record the leakage current displayed for each of the
following conditions, with Neutral switch in NORM position.
Tests should be performed in the following order.
Polarity - NORM;
Ground – NORM
Polarity - REVERSE; Ground – NORM
Polarity - REVERSE; Ground – OPEN
Polarity - NORM;
Ground - OPEN
iv.
Repeat the first two (Normal Polarity and Reverse Polarity -
Grounded) with Neutral switch in OPEN position.
v.
Install the disposable set and prime with saline and proceed
to the Infuse screen. Press STOP to set the pump at 0
ml/min, not heating or pumping.
vi.
Repeat iii & iv with the Hyperthermia Pump
™
in ON mode
(power switch ON, infuse screen displayed, not pumping or
heating).
vii.
Repeat iii & iv with the Hyperthermia Pump
™
infusing and heating
at 750 ml/min.