CME NIKI V4 Service Manual page 47

Battery Test
1. With a pump running, unplug the device. No change in pumping should occur,
the display will start blinking within a few seconds and the Charging led is off.
The battery requires changing when LO BATT is displayed, (the pump will show
'Low Battery' on display and about to finish on the battery capacity screen) the
audible alarm or alert is activated.
2. Connect the pump to an AC outlet.
1. If the device operates satisfactorily on battery power, plug the device back.
Operation should continue without interruptions and the data on the display
should become stable.
WARNING
If the device does not operate on battery power, troubleshoot in
accordance with section 4.4 and repair in accordance with section 4.5.
Air Detection Test
The NIKI V4 pump is designed to detect air bubbles passing through the set. The air
bubble size detection is adjustable through the configuration option and is factory set to
50 micro liter (section 6). If pump fails to detect air remove it from service and
troubleshoot it in accordance with section 4.4 repair and recalibrate in accordance with
section 4.5.
1. Prime and load a standard administration set with one Y-site above the device.
2. Using a precise syringe, introduce an air bubble into the administration set through
the Y-site above the pump, 110 micro liters.
3. Close the door and start the pump. When the intact air bubble reaches the air
sensor, the following should occur:
a. Air is displayed in the Message Display.
b. The audible alarm is activated.
c. The pump stops.
d. If the pump does not alarm, verify that the air bubble did not break up before
reaching the sensor and repeat the test.
NIKI V4 Operator's Manual 47