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Operation Manual HORIBA APDA-371
Particulate Monitor
Date:
April, 2010
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HORIBA Europe GmbH, Julius-Kronenberg-Str. 9, D-42799 Leichlingen, Telefon: +49(0)2175-8978-0, Fax: +49(0)2175-8978-50
Page 53
The ALIGN Menu
NOZZLE:
This screen tests the two nozzle photo sensors. Use the UP and DOWN soft-keys to move the
nozzle, and monitor the status of the S4 and S5 photo sensors on the screen.
SHUTTLE:
This screen tests the photo sensor which monitors the position of the shuttle beam (the two tape
rollers that move together). The status of photo sensor S7 should only change to ON when the beam
is moved all the way to the right side. The shuttle must be moved by hand for this test.
IDLER:
This screen tests the photo sensor which monitors the position of the right-side tape tensioner (the
spring-loaded tape roller on the right). When the tensioner is in its left position under its spring
tension, both photo sensors S6 and S1 should be OFF. If the tensioner is moved to the middle of its
travel, photo sensor S1 should be ON and S6 OFF. When the tensioner is at the rightmost position,
S1 and S6 should both be ON. The tensioner must be moved by hand. The left side tensioner
assembly has no sensors to check.
CAPSTAN:
This screen tests the two photo sensors which watch the rotation of the Capstan shaft. This is the
shaft under the rubber pinch rollers which drives the filter tape forwards and backwards. Press the
ADVANCE soft-key to rotate the Capstan counter-clockwise, and the BACKUP soft-key to rotate
clockwise. The shaft should rotate one-half of a rotation each time. Photo sensor S8 should turn ON
to stop the shaft at each half-turn, and will be OFF while the shaft is turning. It is helpful to put an ink
mark on the end of the shaft to view the rotation.
LATCH:
This screen shows the status of the pinch roller latch. If the rollers are latched in the UP position,
then S9 should be ON. S9 should turn OFF if the latch is unhooked.
REF:
This screen tests the two photo sensors which monitor the position of the reference membrane
assembly. When the EXTEND soft-key is pressed the membrane should extend and the S2 photo
sensor should be ON, and S3 OFF. When the WITHDRAW soft-key is pressed the membrane
should withdraw and the S2 photo sensor should be OFF and S3 ON. It takes a few seconds for the
membrane to move.
7.17
HEATER Test Menu
The TEST > HEATER screen is used to force the Smart Heater ON or OFF for testing purposes. The heater takes
several minutes to heat up or cool down noticeably. The heater automatically turns back off upon exit from the screen.
7.18
FILTER-T Test Menu – Filter Temperature Sensor
The TEST > FILTER-T screen is used to calibrate the filter temperature sensor located in the air stream beneath the
filter tape. When this screen is entered, the APDA will automatically raise the nozzle and turn the pump on. This allows
ambient room air to equilibrate the filter temperature sensor without the heating effects of the Smart Heater. Allow the
pump to run for at least 5 minutes to allow the sensor to equilibrate. Press the RESET hot key to clear out any past
calibration values, then enter the ambient room temperature from your reference standard into the REFERENCE field
and press the CALIBRATE hot key. The APDA reading should change to match within +/- 1 deg C. The RESET hot key
can be used to revert to default calibrations and start over if difficulty is encountered. Older revisions of APDA firmware
contain a different test screen for this sensor.
TEST MODE
NOZZLE
SHUTTLE
IDLER
CAPSTAN
LATCH
REF
SELECT
EXIT