Watlow Series PD - Manual (Page 62)

W a t l o w S e r i e s P D
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60
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C h a p t e r 8 C a l i b r a t i o n P a g e
Calibrating the Series PD
Warm up the Series PD for 20 minutes. To reach the Calibration web page, go to Device Configuration >
Calibration. The Enter Network Password box appears and you are prompted to enter Network Password infor-
mation. The default User Name is new and Password is user.
Be sure to change your user name and password if controller security is a concern. If you want your browser
to remember the User Name and Password after you enter it the first time, check the box, Save this password
in your password list. If you close your browser, you must re-enter your user name and password information.
з з Caution: Before performing a calibration, all control loops should be disabled. Go to Device Configuration > Control Loops
> Loop 1 or 2 > Loop Settings > Control Loop Action, and set to Off.
Equipment Required
• 4 1/2 digit millivolt meter
• 4 1/2 digit milliammeter
• Precision millivolt source, 0 to 50 mV minimum range, 0.002 mV resolution.
• Precision current source, 0 to 20 mA range, with 0.01 mA resolution.
• 1 k
Ω
decade box with 0.01
Ω
resolution.
Calibrate Analog Input x (1 or 2)
1. Select Calibrate Analog Input x
2. Select Millivolts Low (-5 mV)
3. Connect appropriate value to input terminals. See Chapter 2 for wiring.
4. Measure value to 3 decimal places and enter value in box.
5. Click on the Calibrate button.
6. Select Millivolts High (20 mV)
7. Repeat steps 3 through 5.
8. Select Ohms Low (90.85 Ohms)
9. Repeat steps 3 through 5.
10. Select Ohms High (346.66 Ohms)
11. Repeat steps 3 through 5.
12. Select Milliamps Low (0 mA)
13. Repeat steps 3 through 5.
14. Select Milliamps High (15 mA)
15. Repeat steps 3 through 5.
16. Select Volts Low (0 V)
17. Repeat steps 3 through 5.
18. Select Volts High (10.0 V)
19. Repeat steps 3 through 5.
20. Select Go Back To Calibration Page.
21. Verify calibration and rewire for operation.