Watlow 96 User Manual

Series 96

Calibration Manual

1/16 DIN Temperature Controller

with Custom Toolbar (patentpending)

Watlow Controls

1241 Bundy Blvd., P.O. Box 5580, Winona, Minnesota USA55987-5580

Phone: [phone], Fax: [phone] http://www.watlow.com

97

TOTAL

CUSCUSTTOOMMERER

SSAATISFTISFAACTICTIOONN

3 Year Warranty

ISO 9001

Registered Company

Winona, Minnesota USA

January 1999
(1627)

Made in the U.S.A.

2 ■ Calibration Watlow Series 96

Table of Contents

Calibrating the Series 96.......................................................3

Thermocouple Input Procedure.............................................4

Voltage Process Input Procedure.........................................5

Current Process Input Procedure .........................................5

Process Output Procedures..................................................6

Calibration Parameters .........................................................8

Ordering Information ...........................................................11

How to Reach Us .................................................Back Cover

Warranty, Returns.................................................Back Cover

Technical Assistance

If you encounter a problem with your Watlow controller, see the Trouble­shooting Table in the Appendix of the Series 96 User’s Manual and review all
of your configuration information to verify that your selections are consistent
with your application: inputs; outputs; alarms; limits; etc. If the problem
persists after checking the above, you can get technical assistance from your
local Watlow representative, or by dialing [phone], ext. 1111.

An applications engineer will discuss your application with you.
Please have the following information available when calling:

• Complete model number • All configuration information

• User’s Manual • Diagnostic menu readings

Your Feedback

Your comments or suggestions on this manual are welcome. Please send them
to: Technical Writer, Watlow Controls, 1241 Bundy Blvd., P.O. Box 5580,
Winona, MN 55987-5580; phone: [phone]; fax: [phone]. The
Series 96 Calibration Manual is copyrighted by Watlow Winona, Inc., ©
January 1999, with all rights reserved. (1627)

Watlow Series 96 Calibration ■ 3

Calibrating the Series 96

Warm up the unit (20 minutes). To enter a calibration menu, enter the Factory Page by holding
down the ˆ and ‰ keys for six seconds. Once in the Factory Page [Fcty] use the Up-arrow ¿ or

Down-arrow ¯ Key to select a menu. The last three menus on the Factory Page are Calibration 1
Menu [cin1], Calibration 2 Menu [cin2] and Process Output Calibration Menu [cout].

You can restore the original factory calibration with Restore Factory Calibration [`rSt]
(Calibration 1 Menu) or revert to the default parameter range selections with Default Settings
[dFLt] (Calibration 1 Menu).

Figure 3 – The Calibration Menus.

[CUSt] Custom Menu

[FctY]

Factory Page

[Fcty] Factory Page
[`rSt] Restore Factory Calibration
[dFLt] Default Settings
[tc50] Thermocouple Calibration, 50mV
[tc00] Thermocouple Calibration, 0mV
[tc32] Thermocouple Calibration, 32mV
[`gnd] Set Ground
[LEAd] Lead Resistance Calibration
[r`15] RTD Calibration, 15Ω
[r380] RTD Calibration, 380Ω
[A`0u] Process Calibration 1, 0V
[A10u] Process Calibration 1, 10V
[A`4A] Process Calibration 1, 4mA
[A20A] Process Calibration 1, 20mA

[Fcty] Factory Page
[b`0u] Process Calibration 2, 0V
[b10u] Process Calibration 2, 10V
[b4A`] Process Calibration 2, 4mA
[b20A] Process Calibration 2, 20mA

[Fcty] Factory Page
[1``4] Output Calibration 1, 4mA
[1`20] Output Calibration 1, 20mA
[1``1] Output Calibration 1, 1V
[1`10] Output Calibration 1, 10V
[2``4] Output Calibration 2, 4mA
[2`20] Output Calibration 2, 20mA
[2``1] Output Calibration 2, 1V
[2`10] Output Calibration 2, 10V
[4``4] Output Calibration 4, 4mA
[4`20] Output Calibration 4, 20mA
[4``1] Output Calibration 4, 1V
[4`10] Output Calibration 4, 10V

‰

‰

¿

[`LOC] Lockout Menu

[FctY]

[dIAg] Diagnostics Menu

[FctY]

[cin1] Calibration 1 Menu

[FctY]

[cin2] Calibration 2 Menu

[FctY]

‰

[cout] Process Output Calibration Menu 1

[FctY]

¯

¿

¯

4 ■ Calibration Watlow Series 96

Thermocouple Input Procedure

Equipment

• Type J reference compensator with reference junction at 32°F/0°C, or type J
thermocouple calibrator to 32°F/0°C.

• Precision millivolt source, 0 to 50mV minimum range, 0.002mV resolution.

Input 1 Setup and Calibration

1. Connect the correct power supply to terminals 8 and 9 (see Series 96 User’s Manual).

2. Connect the millivolt source to terminals 6 (-) and 7 (+) with copper wire.

3. Enter 50.000mV from the millivolt source. Allow at least 10 seconds to stabilize. Set
Thermocouple Calibration, 50mV [tc50] (Calibration 1 Menu) to [`yES]. Press the
Advance Key ‰ to store 50.000mV input and move to the next prompt.

4. Enter 0.000mV from the millivolt source. Allow at least 10 seconds to stabilize. Set
Thermocouple Calibration, 0mV [tc00] (Calibration 1 Menu) to [`yES]. Press the
Advance Key ‰ to store 0.000mV input and move to the next prompt.

5. Disconnect the millivolt source and connect the reference compensator or thermocouple
calibrator to terminals 6 (-) and 7 (+). With type J thermocouple wire, if using a
compensator, turn it on and short the input wires. When using a type J calibrator, set it
to simulate 32°F/0°C. Allow 10 seconds for the controller to stabilize. Set Thermocouple
Calibration, 32° [tc32] (Calibration 1 Menu) to [`yES]. Press the Advance Key ‰ to
store type J thermocouple calibration and move to the next prompt.

6. Rewire for operation and verify calibration.

RTD Input Procedure

Equipment Required

•1kΩ decade box with 0.01Ω resolution.

Input 1 Setup and Calibration

1. Connect the correct power supply to terminals 8 and 9 (see Series 96 User’s Manual).

2. Short terminals 5, 6 and 7 together with less than 0.1Ω. Set Ground [`gnd]
(Calibration 1 Menu) to [`yES]. Press the Advance Key ‰ to store ground input and
move to the next prompt.

3. Short terminals 5 and 7 together with less than 0.5Ω. Set Lead Resistance Calibration
[LEAd] (Calibration 1 Menu) to [`yES]. Press the Advance Key ‰ to store the lead
resistance and move to the next prompt.

4. Connect the decade box to terminals 5 (S2), 6 (S3) and 7 (S1), with 20- to 24-gauge wire.

5. Enter 15.00Ω from the decade box. Allow at least 10 seconds to stabilize. Set RTD
Calibration, 15Ω [r`15] (Calibration 1 Menu) to [`yES]. Press the Advance Key ‰ to
store the 15.00Ω input and move to the next prompt.

6. Enter 380.00Ω from the decade box. Allow at least 10 seconds to stabilize. Set RTD
Calibration, 380Ω [r380] (Calibration 1 Menu) to [`yES]. Press the Advance Key ‰ to
store the 380.00Ω input and move to the next prompt.

7. Rewire for operation and verify calibration.