Calibration
A-10
Appendix 4
535-PROF User's Manual
PRESS MENU
PRESS ACK
PRESS ACK
PRESS MENU
4 mA
OUTPUT "X"
20 mA
OUTPUT "X"
TO OTHER
CALIBRATION
MENU
EACH OUTPUT WILL GO
THROUGH THIS CYCLE
1
2
13
12
11
10
9
3
4
5
6
7
8
16
15
14
OUT 1–
OUT 1+
OUT 2–
OUT 2+
OUT 3–
OUT 3+
OUT 4–
OUT 4+
Connect to
multi-meter
–
+
3. On the Microcontroller Circuit Board locate jumper locations marked PV1 and
2nd near the edge connector. Reposition both jumper connectors in the 2nd
location onto pins for V and TC , as shown in
Figure A4.3.
4. Reinsert chassis into the case and apply power.
5. Allow controller to warm up for at least 30 minutes.
The 2nd and 3rd displays should read CALIBRATE ANALOG. IN. (
CALIBRATE
Menu,
ANALOG. IN
section).
Press
MENU
three times to reach the
CALIBRATE ANLG. OUT
Menu.
6. Connect hook up wires to the terminals for the corresponding milliamp output
modules.
Output 1 uses terminals 3 and 4.
Output 2 uses terminals 5 and 6
Output 3 uses terminals 7 and 8 (shown in
Figure A4.8)
Output 4 uses terminals 15 and 16.
Attach the test leads from the multimeter to the wires, and then plug the test
leads into the meter. Set the meter for DC milliamp.
7. Press
ACK
. The 2nd display will read OUTPUT1, OUTPUT2, OUTPUT3 or
OUTPUT4 (depending on the module installation).
8. Press
MENU
to scroll to the output to be calibrated (see
Figure A4.9). The 3rd
display should read 4 mA.
The multimeter should read a value close to 4.00.
9. Wait one minute. Use
and
(and
FAST
) on the controller to change the
meter’s display to exactly 4.00 mA.
10. Press
MENU
. The 3rd display should read 20 mA.
11. Let this setting stabilize for 5 minutes. Use
and
(and FAST) on the con-
troller to change the meter’s display to exactly 20mA.
12.
To calibrate another analog output
:
Move the wires and test leads to the new output terminals.
Press
MENU
until the 3rd display shows 4mA for the corresponding output in
the 2nd display. Repeat step 9-11.
13. To complete calibration, press
ACK
key, disconnect the power and place the
jumper connectors back into their original position.
RESET MENU DATA
Resets all parameter values back to their factory default values (except for calibra-
tion information). Refer to the flowchart in
Figure A4.2.
1. Disconnect power to the instrument.
2. Remove chassis from case.
3. On the Microcontroller Circuit Board, set jumpers at the 2nd PV location to
V
and
TC
.
4. Press
MENU
key until the display shows RESET MENU DATA.
5. Press the
ACK
key.
6. Press
MENU
key within two seconds to reset the menu data.
If successful, RESET COMPLETED will appear in the display.
If failed, RESET SKIPPED will appear instead.
7. To try again, press
ACK
key, and then press
MENU
key within two seconds.
8. When complete, return jumpers to their original positions.
Figure A4.8
Milliamp Output Calibration Wiring
Figure A4.9
Output Module Menu Cycle
