3. For Block 2 (and upgraded Block 1.8 systems), measure the voltage
between test point 1 (+) and test point 2 (-). Adjust trimpot R1 on the
A/D board to 2.048 VDC, ±0.005 VDC. Apply a small amount of
Glyptal to the trim pot to lock adjustment.
4. Remove the extender board and reinstall the A/D board.
High-Low Pressure Range Divider
Voltage Verification
1. Open the control enclosure and interrupt power to the enclosure by
defeating the safety interlock. Remove the microprocessor board, and
insert the AutoTest board.
2. Remove the connector from the MKS Baratron pressure transducer,
and attach the voltage divider adjustment tool to the harness
connector.
3. Apply power to the enclosure by enabling the safety interlock.
4. Perform the Analog Test from the AutoTest procedures.
5. If the voltage is not within specifications, adjust the bottom trim pot
(R7) on the connector distribution board until the indicated voltage
on the is correct according to the AutoTest procedures. Adjust trim
pot R5 on Block 2 devices.
6. Remove the adjustment tool and reconnect the cable to the pressure
transducer.
Baratron Zero Test
4
4
Note: This test should be performed as part of PM2.
1. Remove the bellows, filter, vent valve, vacuum switch and throttle
valve from the vacuum subsystem.
2. Connect the T-piece to the KF-25/16 adapter (D16B pump) or the
KF-40/16 adapter (D16A pump). See the Baratron Test diagram.
3. Disconnect the capacitance manometer (Baratron) from the chamber
and attach it to one side of the T-piece.
4. Using an extension harness, connect the one end to the Baratron
harness and the other end to the Baratron.
5. Install the Thermovac TM-20 (TR-211) vacuum gauge head to the
center of the T-piece. Let the TM-20 warm up for about 15 minutes
prior to use.
6. Turn on the TM-20, the display indicates 7.6 X 10+2 Torr (760 Torr).
In the video clip, the demonstrator indicates the major parts of the
TM-20 that need to be assembled.
Certification Procedures
Product Certification
ASP Service Guide rev. D
STERRAD® 100 Sterilizer
13-7
Содержание STERRAD 100
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