ABL77 Service Manual
Chapter 4: Test and Calibration Procedures
Inlet Flap Sensor
Introduction
This procedure is used for verifying proper performance of the inlet flap sensor
(opto-sensor).
Verify inlet flap
sensor
Follow the steps below to verify proper performance of the inlet flap sensor.
Step Action
1.
•
Select
Options
from the
Main Menu
•
Enter a
Password
that will allow access to the
Hardware
screen.
Access to this screen requires a password. If a user password is not
available, the generic MK592 may be used.
NOTE:
This password is for Radiometer use only. Do not share this
password with customers.
•
Select
Hardware
from the
Options
menu.
RESULT:
The following screen will appear.
2.
Place a sensor cassette on the analyzer.
3.
Open the inlet flap on the sensor cassette and verify that the
Door
indicator on the Hardware screen reads
1
.
4.
Close the inlet flap and verify that the
Door
indicator reads
0
.
5.
If these readings are not observed:
•
Replace the opto sensor cable (REF: 902-684). This part includes
the opto sensor and attached cabling.
•
If the analyzer still fails to give the proper results, the valve board
should be replaced.
Rev. F
4-39