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Watlow EZ-Zone PM Express Temperature ControllerD291511.18a.fm
A-11
Appendix A: Sensors
Operations Menu Settings
Upon power up of the temperature controllers, the
Advance
key will scroll through the
Opera-
tions Menu
. Press the
Infinity
key to return to the default display.
1.
Press the green
Advance
button to scroll through the menu.
2.
Begin with the
Autotune Menu
(
AUt
). Use the arrow keys to select
No
(
no
). Then press
the green
Advance
button to move to the next setting.
3.
In the
Control Mode Active Menu
(
C.M
) select
Auto
(
AUto
). Press
Advance
.
4.
In the
Heat Proportional Band Menu
(
h.Pb
) select
14.0
° C
. Press
Advance
.
5.
In the
Cool Proportional Band Menu
(
C.Pb
) select
14.0
° C
. Press
Advance
.
6.
In the
Time Integral Menu
(
ti
) select
180.0
. Press
Advance
.
7.
In the
Time Derivative Menu
(
td
) select
0.0 seconds
. Press
Advance
.
8.
In the
Time Base Output 1
(
o.tb1
) select
1 sec. (SSR & sw dc)
. Press
Advance
.
9.
In the
Time Base Output 2
(
o.tb2
) select
20.0 sec. (mech. relay & NO-ARC)
. Press
Advance
.
10.
In the
Alarm Low Set Point Menu
(
A.Lo
) the user may adjust the setting to fit their chosen
specification.
Press
Advance
.
11.
In the
Alarm High Set Point Menu
(
A.hi
) the user may adjust the setting to fit their chosen
specification.
Press
Advance
.
10.
In the
Calibration Offset Menu
(
i.CA
) select
0.0
. Press
Advance
.
Calibration Procedure
Calibrate the temperature controllers as needed, following the steps below:
1.
Measure the temperature of the seal shoe at the end of the thermocouple with a tempera-
ture probe.
2.
Check to see if the temperature reading on the controller is different than that of the
probe. Calculate the difference, if any. This difference is the
Calibration Offset Value
.
For example, if the controller reading is 140 degrees C and the probe reading is 115
degrees C, then the
Calibration Offset Value
should be set at -25 degrees C.
3.
To adjust the
Calibration Offset
value, press the green
Advance
Key
to scroll through in
the
Operation Menu
screens until
i.CA
is displayed.
Summary of Contents for TM-500
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