Watlow Series SD31 PID with Optional Countdown Timer - Manual (Page 49)

Wa t l o w S e r i e s S D 3 1 ■ 47 ■ C h a p t e r 9 F a c t o r y
Current Process Input Procedure
Equipment
• Precision current source, 0 to 20 mA range, with
0.01 mA resolution.
Input Setup and Calibration
1. Connect the correct power supply to terminals 1
and 2 (see Chapter Two).
2. Connect the current source to terminals 11(-) and
8(+).
3. Enter 4.00 mA from the current source to the con-
troller. Allow at least 10 seconds to stabilize. Press
the Down Key
¯ until the Input Calibrate 4 mA
parameter, [``A;4] appears. Press and hold the
ß Key and change [`~no] to [`yES] by press-
ing the Down Key
¯. Release the ß Key and
press the Down Key ¯ to store the 4 mA input and
move to the next parameter.
4. Enter 16.00 mA from the current source to the con-
troller. Allow at least 10 seconds to stabilize. At the
Input Calibrate 16 mA parameter,
[`A;16] , press
and hold the ß Key and change [`~no] to
[`yES] by pressing the Down Key ¯. Release the
ß Key and press the Down Key ¯ to store the
16 mA input and move to the next parameter or
press the Infinity Key
ˆ to exit the Factory Page.
5. Rewire for operation and verify calibration.
Process Output Procedures
Equipment
• Precision volt/ammeter with 3.5-digit resolution.
Output 1 Setup and Calibration
1. Connect the correct power supply to terminals 1
and 2 (see Chapter Two).
Volts
2. Connect the volt/ammeter to terminals 7 (-) and 6 (+).
3. Press the Down Key ¯ until the Output 1 Cali-
brate 1 V parameter, [01;1u] appears. Press and
hold the ß Key and change [`~no] to [`yES] by
pressing the Down Key ¯. Release the ß Key.
The voltage output value appears in the display.
Press the Up
¿ or Down Key ¯ to adjust the dis-
play value to match the value from the volt/amme-
ter. The unit should stabilize within one second. Re-
peat until the volt/ammeter reads 1.00 V, ±0.1 V.
Press the Down Key
¯ to store the value and move
to the next parameter.
4. At Output 1 Calibrate 9 V parameter [01;9u], press
and hold the ß Key and change [`~no] to
[`yES] by pressing the Down Key ¯. Release the
ß Key. The voltage output value appears in the
display. Press the Up
¿ or Down Key ¯ to adjust
the display value to match the value from the
volt/ammeter. The unit should stabilize within one
second. Repeat until the volt/ammeter reads 9.00 V,
±0.1 V. Press the Down Key
¯ to store the value
and move to the next parameter or press the Infini-
ty Key
ˆ to exit the Factory Page.
5. Rewire for operation and verify calibration.
Milliamperes
6. Connect the volt/ammeter to terminals 7 (-) and 5
(+).
7. Press the Down Key ¯ until the Output 1 Cali-
brate 4 mA parameter, [01;4a] appears. Press and
hold the ß Key and change [`~no] to [`yES] by
pressing the Down Key ¯. Release the ß Key.
The current output value appears in the display.
Press the Up
¿ or Down Key ¯ to adjust the dis-
play value to match the value from the volt/amme-
ter. The unit should stabilize within one second. Re-
peat until the volt/ammeter reads 4.00 mA, ±0.1
mA. Press the Down Key
¯ to store the value and
move to the next parameter.
8. At Output 1 Calibrate 16 mA parameter [01;16],
press and hold the ß Key and change [`~no] to
[`yES] by pressing the Down Key ¯. Release the
ß Key. The current output value appears in the
display. Press the Up
¿ or Down Key ¯ to adjust
the display value to match the value from the
volt/ammeter. The unit should stabilize within one
second. Repeat until the volt/ammeter reads 16.00
mA, ±0.1 mA. Press the Down Key
¯ to store the
value and move to the next parameter or press the
Infinity Key
ˆ to exit the Factory Page.
9. Rewire for operation and verify calibration.
Restoring Factory Calibration
• Press the Up ¿ and Down ¯ keys together for six
seconds until [FaCT] appears in the display.
• Press the Down Key ¯ to step through the parame-
ters until the [rESt] appears.
• Press and hold the ß Key and change [`~no] to
[`yES] by pressing the Down Key ¯. Release the
ß Key and press the Infinity Key ˆ to exit the
Factory Page.