Sigma 6000+ - Page 18

‘SIGMA 6000 ITV PUMP PREVENTATIVE MAINTENANCE
Push the PIG.RATE key and unit will display “OCC=X”. Load the unit with a water
filled LV. set. The value for “X” should be between 50 and 175.
Remove the set from the unit. Push the VOL.LIMIT key, the unit will display “AIR=X”.
Load the unit with an empty LV. set. The value for “X” should be less than 5 (<5). ©
Remove the empty set from the unit under test. Push the PIG.VOL key, unit will display
“ADC=X”. The value of “X” should be 0 or 1 (< 1).
Depress the RATE key; the unit will display “MOT”. In approximately two minutes a
number will appear. This number should match the MOT Number located on the unit
calibration label within 20. The label is located on the unit bottom.
Exit the TEST MODE by depressing the RUN/STOP key. Tum unit off with the
ON/OFF key.
3. ALARM FUNCTIONS AND MEMORY TEST
a.
With the unit plugged in depress ON/OFF, Set the RATE to 100 and the VOL. LIMIT to
500. Turn the unit off. Turn the unit back on again. Unit should display “RATE 100”.
Press the VOL. LIMIT key and verify that the unit displays “VOL 500”. Memory is
working.
Load a water filled set into the unit and depress RUN/STOP key. Close the set roller
clamp at a distance of 6” to 12” below the pump. “CLR OCCL” alarm shall occur within
30 seconds.
This test is OPTIONAL and may be preformed if specific occlusion pressures are
required for facility protocol.
(Optional) Gauge Occlusion Test per step 9.
Push the RUN/STOP key and introduce a "/g"air bubble into 1.V. line above the pump.
With the unit running, a “CLR AIR” alarm shall occur as the complete air bubble passes
in front of the AIR/OCCL sensor.
While the pump is running, unplug it from the AC outlet. The green AC indicator will
turn off. The display message “BATT ON” shall be displayed alternately with the
“RATE XXX” value selected.
Section 1 Page 10