AVL 9180 Service Manual

45
TEST PINCH VALVES
This test turns on/off each solenoid valve as indicated and is useful to verify both
electronic control and mechanical operation of each solenoid valve.
TEST INTERFACE
The Interface Test can be used to verify correct operation of the RS232C serial port.
To operate this test, jumper pin 2 and pin 3 of the rear interface connector prior to
invoking the test. During the interface test, the analyzer sends out a test string and
checks if it is received within a set period of time. If correct operation is observed
after completion of the test, INTERFACE OK will be displayed.
TEST AMPLIFIER
The Amplifier Test displays ground, reference and output voltage of each input
amplifier. The values displayed for each electrode channel will be dependent on the
electrode inputs and may vary. Display of the ground should read between -10mV
and +10mV with the reference voltage reading between -2490mV and -2510mV.
With all inputs open, the display should read +/- 4095 for each channel. On the 9140/
9180/9181, an additional display indicating the temperature voltage and temperature in
degrees C is available to verify the temperature adjustment.
ENTER SERVICE CODE
Service Codes are available and allow additional programming features. Following is a
listing of the available Service Codes and functions:
Set Reset Service Code Description
ALL LLA This service code will enable the Ca
++
value during auto-
(9181 only) matic serum/blood measurement. Special precautions are
necessary to obtain the correct Ca
++
value due to sample
exposure to room air.
CDC Clears all Service Codes.

AVL 9180 Specifications

General

Brand	AVL
Model	9180
Category	Measuring Instruments
Language	English