Calibrating Watlow Process Controls Calibration Manual
Contents
1. Menus Prompts Bi NOTE The Fcty menu is not available on a Series 981 984 Figure 1 Entering the Fcty Prompt Ja NOTE The Series 981 984 units have a Hold Run key in place of the Auto Man key WATLOW Series 988 Calibration Manual 3 Figure 2 Entering the Diagnostics Menu Figure 3 The Diagnostics Menu Diagnostics Menu The Diagnostics menu diAg contains specific information for each control This menu is for factory use only but can be accessed for viewing or technical assis tance e At the Fcty prompt press the Up or Down key to advance the upper display to the diAg prompt See below Use the Mode key to advance through this menu Do not enter any readings here make photocopies instead Feky Pc Es L1 L2 L3 L4 DEV OUT WATLOW Iar LU LL PROCESS L1 L2 L3 L4 SERIES 988 SERIES 988 kama j Press the Mode key to advance EEE through the Diagnostics menu Fety xa e MAN o Your Your Readings Readings l Input 2 A D count l Diagnostics Input 1 module Input 2 module Factory ship date Output 1 module Software revision Output 2 module Serial number Output 3 module Ambient temperature Ambient A D count Ground A D count Output 4 module Test displays Test outputs Input 1 A D count Open Loop 4 WATLOW Series 988 Calibration Manual When contacting the factory for technical assistance make sure you have the informa2. Calibrating Watlow Process Controls Applies to Series 981 982 983 984 986 987 988 989 KID PROCES coc ot NEJI HM WATLOWY Watlow Controls 1241 Bundy Blvd P O Box 5580 Winona MN 55987 5580 Phone 507 454 5300 Fax 507 452 4507 W988 CM10 9345 5 00 November 1993 Made in the U S A Printed on Recycled Paper Page Description Calibrating Your Watlow Process Control YUUYNOROOCO The Factory Fcty Menus Entering the Fcty Prompt Diagnostics Menu Calibration Menu Calibration Restore Prompt The dFL Prompt Input Calibration Output Calibration Calibration Procedures Low Gain Thermocouple Input High Gain Thermocouple Input RTD Input mA Process Input VDC Process Input mVDC Process Input Slidewire Feedback Input Current Transformer Input mA Process Output 1 and 2 VDC Process Output 1 and 2 mA Retransmit Output 3 VDC Retransmit Output 3 2 WATLOW Series 988 Calibration Manual Calibrating Your Watlow Process Control This manual is a supplement to the Series 981 982 and 988 989 Users Manual The calibration procedures within this manual pertain to the following controls Series 981 Series 986 Series 982 Series 987 Series 983 Series 988 Series 984 Series 989 Use in conjunction with the appropriate users manual From this point on 988 will be used in place of the above listed models Before attempting to calibrate make sure you read through the proced
3. Enter the Factory menu again by pressing the Up and Down keys simultaneously for three seconds to enter the Setup menu and an additional three seconds to enter the Factory menu e At the Fcty prompt press the Up or Down key to advance to the upper display to the CAL prompt Figure 4 Entering the Calibration Menu WATLOW l EFA PROCESS on E E L1 L2 L3 L4 s DISPLAY OUT AUTO MAN o SERIES 988 The Calibration menu begins with the Input 1 prompts and continues through to the Output 3 prompts Located at the end of the Calibration menu are the restore fac tory values and default parameters prompts See below Before continuing through the calibration menu refer to the proper calibra tion procedure for your control Calibration Figure 5 The Calibration Menu Input 1 Input 2 6 WATLOW Series 988 Calibration Manual Press the Mode key to advance through the Diagnostics menu Your Settings b 15 _ xw A50 cont gt a o1 o o R oO Sle xwe x A 20 gt O I o R gt A38 Output 1 AOU Output 2 Output 3 50H b20 Restore factory values St Default parameters dFL Your Settings Calibration Restore Prompt rSt dFL Prompts If you make a mistake while calibrating your control the rSt prompt near the end of the calibration menu restores the original factory calibration settings At the rSt prompt simply press
4. tion documented from the following prompts All prompts in this menu are read only DI FVelareysyilers Date This prompt represents the date the final control test was performed The first DAtE two numbers are the week 01 through 52 and the last two numbers are the year Software Revision Signifies the control software revision SOFt Serial Number Represents the control serial number The first two LED s in the upper display are Sn followed by the serial number The number is six digits in length beginning with the last two digits in the upper display and wrapping around to the lower display where the remaining four digits are shown n Ambient Temperature The ambient temperature at the Input 1 terminals in F AMb Acnt gnd cnt1 and cnt2 are for factory use only itY1 itY2 OtY1 OtY2 OtY3 and OtY4 are input and output module types respec tively Below is a listing of the displays and what they represent Please docu ment the displays before contacting the factory for technical assistance Input Types nonE No module Utch Universal thermocouple high gain RYB tc Thermocouple only UtcL Universal thermocouple low gain Curr Current detect UMu Universal millivolts OoOo SLid Slidewire UPrc Universal process UOFF Universal OFF Ei2 Event input 2 Urtd Universal RTD Curr Heater current Output Types nonE No module rLAB Relay A B SSR1 0 5A SSR rABS Relay A B with suppression ow2 SS1S 0 5A SSR with suppress
5. 2 calibration Connect the voltage source to terminal 18 and terminal 20 on the 988 terminal strip Use 20 to 24 gauge copper wire Remove the control from the case and set the Input 2 DIP switches to 1 ON 2 ON 3 ON 3 Apply power to the unit and let it warm up for 15 minutes After warm up put J the unit in the CAL menu See Page 6 NOTE Any prompt begin When performing calibration procedures always do the Input 1 prompts ning with an A beginning with an A first then continue on to the Input 2 prompts applies to Input 1 beginning with a B See the Calibration menu on Page 6 Those beginning with a B apply to 4 At the A20A or B20A prompt enter 20 00mA from the current source to the Input 2 Series 988 Allow at least 10 seconds to stabilize Press the Up key to change the upper display to YES Press the Mode key 5 At the A 4A or B 4A prompt enter 4 00mA from the current source to the Series 988 Allow at least 10 seconds to stabilize Press the Up key to change the upper display to YES Press the Mode key To conclude the current process Calibration press the Display key WATLOW Series 988 Calibration Manual 11 VDC Process Input J NOTE Any prompt begin ning with an A applies to Input 1 Those beginning with a B apply to Input 2 VDC Process Input Procedure 0 to 5VDC and 0 to 10VDC units Equipment Required e Precision Voltage source 0 10 volt minimum range with 00
6. 988 See Chapter 2 in the user s manual For Input 1 calibration Connect the millivolt source to terminal 9 and terminal 10 on the 988 terminal strip Use 20 to 24 gauge copper wire If you have model number98__ 2 remove the control from the case and set the Input 1 DIP switches to 1 OFF 2 ON 3 ON For Input 2 calibration Connect the millivolt source to terminal 19 and terminal 20 on the 988 terminal strip Use 20 to 24 gauge copper wire If you have model number98__ 2 ____ remove the control from the case and set the Input 2 DIP switches to 1 OFF 2ON 3 ON Apply power to the unit and let it warm up for 15 minutes After warm up put the unit in the CAL menu See Page 6 When performing calibration procedures always do the Input 1 prompts beginning with an A first then continue on to the Input 2 prompts beginning with a B See the Calibration menu on Page 6 At the A 50 prompt or the B 50 prompt enter 50 00mV from the millivolt source to the Series 988 Allow at least 10 seconds to stabilize Press the Up key to change the upper display to YES Press the Mode key At the A 00 prompt or the B 00 prompt enter 0 00mV from the millivolt source to the Series 988 Allow at least 10 seconds to stabilize Press the Up key to change the upper display to YES Press the Mode key At the te prompt disconnect the millivolt source and connect the reference compensator or T C
7. Terminals To 10 or 20 General Radio Model 1433 T 3 Apply power to the unit and let it warm up for 15 minutes After warm up put the unit in the CAL menu See Page 6 When performing calibration procedures always do the Input 1 prompts beginning with an A first then continue on to the Input 2 prompts beginning with a B See the Calibration menu on Page 6 4 At the A 15 or B 15 prompt enter 15 00 from the decade box to the Series 988 Allow at least 10 seconds to stabilize Press the Up key to change the upper display to YES Press the Mode key 5 At the A380 or B380 prompt enter 380 00 from the decade box to the Series 988 Allow at least 10 seconds to stabilize Press the Up key to change the upper display to YES Press the Mode key To conclude the RID calibration press the Display key 10 WATLOW Series 988 Calibration Manual mA Process Input mA Process Input Procedure 0 to 20mA and 4 to 20mA units Equipment Required e Precision current source 0 20mA range with 0 01mA resolution Setup and Calibration 1 Connect the AC voltage L1 L2 and ground to the proper terminals on the Series 988 See Chapter 2 in the user s manual Judajn 2 For Input 1 calibration Connect the voltage source to terminal 8 and terminal 10 on the 988 terminal strip Use 20 to 24 gauge copper wire Remove the control from the case and set the Input 1 DIP switches to 1 ON 2 ON 3 ON fie a For Input
8. at least 10 seconds to stabilize Press the Up key to change the upper display to YES Press the Mode key To conclude the millivolt process Calibration press the Display key J NOTE Any prompt begin ning with an A applies to Input 1 Those beginning with a B apply to Input 2 WATLOW Series 988 Calibration Manual 1 3 Slidewire Current 14 Slidewire Feedback Input Procedure Equipment Required 1K precision decade box with 0 01 resolution Setup and Calibration 1 Connect the AC voltage L1 L2 and ground to the proper terminals on the Series 988 See Chapter 2 in the user s manual 2 Connect the decade box to terminal 18 and 20 on the 988 terminal strip Place a jumper wire between terminal 19 and 20 Use 20 to 24 gauge cop per wire 3 Apply power to the unit and let it warm up for 15 minutes After warm up put the unit in the CAL menu See Page 6 4 Atthe B 15 prompt enter 1000 00 from the decade box to the Series 988 Allow at least 10 seconds to stabilize Press the Up key to change the upper display to YES Press the Mode key 5 At the B380 prompt remove the jumper from terminals 19 and 20 and place it between terminals 18 and 19 Allow at least 10 seconds to stabilize Press the Up key to change the upper display to YES Press the Mode key To conclude the slidewire feedback calibration press the Display key Current Transformer Input Procedure Equipment Required e DC sourc
9. it warm up for 15 minutes After warm up put the unit in the CAL menu See Page 6 When performing calibration procedures always do the Input 1 prompts beginning with an A first then continue on to the Input 2 prompts beginning with a B See the Calibration menu on Page 6 gt NOTE 4 At the A 50 or B 50 prompt enter 50 00mV from the millivolt source to the Any prompt begin Series 988 Allow at least 10 seconds to stabilize Press the Up key to change ning with an A the upper display to YES Press the Mode key applies to Input 1 Those beginning 5 At the A 00 or B 00 prompt enter 0 00mV from the millivolt source to the we apply 2 Input 2 Series 988 Allow at least 10 seconds to stabilize Press the Up key to change j the upper display to YES Press the Mode key 6 At the tc prompt disconnect the millivolt source and connect the reference compensator or T C calibrator to terminal 9 and terminal 10 on the 988 terminal strip If using a compensator turn on and short the input wires If using a J calibrator set it to simulate 32 F 0 C Allow 10 seconds for the con trol to stabilize Press the Up key to change the upper display to YES To con clude the T C calibration press the Display key 7 For Input 1 calibration Remove the control from the case and set the Input 1 DIP switches to 1 OFF 2 ON 3 OFF lab F ln 8 For Input 2 calibration Remove the control from the case and set the Input 2 DIP sw
10. terminal 15 and terminal 17 Set the DMM to read a range of 0 to 20mA Connect the leads of the DMM to measure current 3 Apply power to the unit and let it warm up for 15 minutes After warm up put the unit in the CAL menu See Page 6 When performing calibration procedures always do the Output 1 prompts 2 l beginning with a 1 first then continue on to the Output 2 prompts MOTE beginning with a 2 See the Calibration menu on Page 6 Any prompt begin ning with a 1 4 Atthe 1 40r2 4 prompt the multimeter should read approximately 4 mA Use dn Output 1 the Up or Down keys to adjust the reading on the multimeter for 3 85mA a wwa A 05mA Allow the control to stabilize for 10 seconds Press the Mode key to Output 2 Pee enter and advance to the next prompt 5 Atthe 120 or 2 20 prompt use the Up or Down keys to adjust the reading on the multimeter for 20 15mA 05mA Allow the control to stabilize for 10 sec onds Press the Mode key to enter and advance to the next prompt To con clude the process output calibration press the Display key WATLOW Series 988 Calibration Manual 15 VDC Process Output VDC Process Output 1 amp 2 Calibration pl NOTE Any prompt begin ning with a 1 applies to Output 1 Those beginning with a 2 apply to Output 2 Equipment Required e 4 1 2 digit Digital Multimeter nares and Calibration Connect the AC voltage L1 L2 and ground to the p
11. 1 volt resolution Setup and Calibration 1 Connect the AC voltage L1 L2 and ground to the proper terminals on the Series 988 See chapter 2 in the users manual 2 For Input 1 calibration Connect the voltage source to terminal 9 terminal 10 on the 988 terminal strip Use 20 to 24 gauge copper wire Remove the control from the case and set the Input 1 DIP switches to 1 ON 2 ON 3 ON For Input 2 calibration Connect the voltage source to terminal 19 and 20 on the 988 terminal strip Use 20 to 24 gauge copper wire Remove the control from the case and set the Input 2 DIP switches to 1 ON 2 ON 3 ON 3 Apply power to the unit and let it warm up for 15 minutes After warm up put the unit in the CAL menu See Page 6 When performing calibration procedures always do the Input 1 prompts beginning with an A first then continue on to the Input 2 prompts beginning with a B See the Calibration menu on Page 6 4 At the A10U or B10U prompt enter 10 000 volts from the voltage source to the Series 988 Allow at least 10 seconds to stabilize Press the Up key to change the upper display to YES Press the Mode key 5 At the A OU or B OU prompt enter 0 000 volts from the voltage source to the Series 988 Allow at least 10 seconds to stabilize Press the Up key to change the upper display to YES Press the Mode key To conclude the voltage process calibration press the Display key 12 WATLOW Series 988 Ca
12. ation information will not be entered Once the appropriate parameters are calibrated press the Display key to exit the CAL menu Output Calibration After calibrating the Input 1 and 2 prompts the next prompts apply to Output 1 through 3 which are for process outputs only Model numbers affected are Output 1 98 F_ ____ Output 2 98 F _ Output 3 98 eM 98 N The prompt in the lower display indicates the output signal while the upper display reads a hexidecimal value which matches the output value The upper display value is for internal use only and should be ignored Each output calibration prompt is preceded by a 1 2 or 3 signifying Output 1 2 or 3 respectively If your unit does not have Output 2 or 3 these prompts will not appear Once the appropriate parameters are calibrated press the Display key to exit the CAL menu WATLOW Series 988 Calibration Manual T Low Gain T C Ai NOTE Any prompt begin ning with an A applies to Input 1 Those beginning with a B apply to Input 2 Low Gain Thermocouple Input Procedure For all thermocouple inputs excluding Type R S and B Equipment Required Type J reference compensator with reference junction at 32 F 0 C or Type J thermocouple calibrator set at 32 F 0 Precision millivolt source 0 50mV minimum range 0 01mV resolution Setup and Calibration 1 Connect the AC voltage L1 L2 and ground to the proper terminals on the Series
13. calibrator to terminal 9 and terminal 10 on the 988 terminal strip 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 control to stabilize Press the Up key to change the upper display to YES To conclude the T C calibration press the Display key 8 WATLOW Series 988 Calibration Manual High Gain Thermocouple Input Procedure High Gain T C Type R S and B only Equipment Required e Type J reference compensator with reference junction at 32 F 0 C or Type J thermocouple calibrator set at 32 F 0 e Precision millivolt source 0 50mV minimum range 0 01mV resolution Setup and Calibration 1 Connect the AC voltage L1 L2 and ground to the proper terminals on the Series 988 See Chapter 2 in the user s manual 2 For Input 1 calibration Connect the millivolt source to terminal 9 and terminal 10 on the 988 terminal strip Use 20 to 24 gauge copper wire If sa ae you have model number 98 _ 2 _ ___ remove the control from the tle case and set the Input 1 DIP switchesto 1 OFF 2ON 3 ON For Input 2 calibration Connect the millivolt source to terminal 19 and oF terminal 20 on the 988 terminal strip Use 20 to 24 gauge copper wire If Ji al fn you have model number 98 _ _2 ___ _ remove the control from the t case and set the Input 2 DIP switches to 1 OFF 2 ON 3 ON 3 Apply power to the unit and let
14. e 50mA minimum sourcing capacity 0 5V minimum range Setup and Calibration 1 Connect the AC voltage L1 L2 and ground to the proper terminals on the Series 988 See Chapter 2 in the user s manual 2 Connect the voltage source to terminal 18 and terminal 20 on the 988 termi nal strip Use 20 to 24 gauge copper wire 3 Apply power to the unit and let it warm up for 15 minutes After warm up put the unit in the CAL menu See Page 6 4 At the B 50 prompt enter 4 72VDC from the voltage source to the Series 988 Allow at least 10 seconds to stabilize Press the Up key to change the upper display to YES Press the Mode key 5 At the B 00 prompt enter 0 00VDC from the voltage source to the Series 988 Allow at least 10 seconds to stabilize Press the Up key to change the upper display to YES Press the Mode key To conclude the current transformer input calibration press the Display key WATLOW Series 988 Calibration Manual mA Process Output mA Process Output 1 8 2 Procedure Equipment Required e 4 1 2 digit digital multimeter Setup and Calibration 1 Connect the AC voltage L1 L2 and ground to the proper terminals on the Series 988 See Chapter 2 in the user s manual 2 For Output 1 calibration Connect the digital multimeter to terminal 12 and terminal 14 Set the DMM to read a range of 0 to 20mA Connect the leads of the DMM to measure current For Output 2 calibration Connect the digital multimeter to
15. igital Multimeter Setup and Calibration 1 Connect the AC voltage L1 L2 and ground to the proper terminals on the Series 988 See Chapter 2 in the user s manual 2 Connect the digital multimeter to terminal 1 and terminal 2 Set the DVM to read a range of 0 to 20mA Connect the leads of the DVM to measure current 3 Apply power to the unit and let it warm up for 15 minutes After warm up put the unit in the CAL menu See Page 6 4 At the 3 LO prompt the multimeter should read approximately 0 1mA Use the Up or Down keys to adjust the reading on the multimeter for 0 00mA 0 05mA Allow the control to stabilize for 10 seconds Press the Mode key to enter and advance to the next prompt 5 At the 3 HI prompt use the Up or Down keys to adjust the reading on the multi meter for 20mA 05mA Allow the control to stabilize for 10 seconds Press the Mode key to enter and advance to the next prompt To conclude the process retransmit output calibration press the Display key VDC Retransmit Output 3 Calibration Equipment Required e 4 1 2 digit Digital Multimeter a and Calibration Connect the AC voltage L1 L2 and ground to the proper terminals on the Series 988 See Chapter 2 in the 988 User s Manual 2 For Output 1 calibration Connect the digital multimeter to terminal 1 and terminal 2 Set the DVM to read a range of 0 to 10VDC Connect the leads of the DVM to measure volts DC 3 Apply power to the uni
16. ion 2rLY Two relays SSr2 2 0A SSR Proc Process ov SS2S 2 0A SSR with suppression Uret Voltage retransmit ERZE 2SSr Two 0 5A SSR Iret Current retransmit dc Switched DC SPLY Power supply 2dc Two switched DC 232 RS 232 communications rLYc Form C relay 485 ElIA 485 422 communications rLcS Form C relay with suppression Display Press the Up or Down key to change the upper display from no to YES Each dISP display and LED is tested If any display or LED is absent contact the factory Test Output This prompt tests each output As the Up or Down key is pressed it cycles through the available outputs Once the corresponding LED is lit the respective output is energized Press the Up or Down key again to advance to the next output If any LED s are non functional or if the outputs fail to energize contact the factory tout Open Loop This prompt enables open heater or shorted sensor detect and enables the error code function This prompt only functions in the proportional control mode The error message OPLP flashes in the lower display when on is selected and heat or cool is full ON and no temperature change has occurred over a period of time The time period is based on the system characteristics Range on or OFF Default OFF OPLP This menu will continue looping through the parameters until you press the Display key to return to the Display loop WATLOW Series 988 Calibration Manual 5 CAL Menu Calibration Menu
17. itches to 1OFF 2 ON 3 OFF uhi 9 At the A OH or B OH prompt enter 0 00 mV from the millivolt source to the Series 988 Allow at least 10 seconds to stabilize Press the Up key to change the upper display to YES Press the Mode key 10 At the A 20 or B 20 prompt enter 20 00 mV from the millivolt source to the Series 988 Allow at least 10 seconds to stabilize Press the Up key to change the upper display to YES Press and hold the Mode key while also pressing the Up key until the lower display reads tc WATLOW Series 988 Calibration Manual 9 2 NOTE Any prompt begin ning with an A applies to Input 1 Those beginning with a B apply to Input 2 RTD Input Procedure Equipment Required e 1K precision decade box with 0 01 resolution Setup and Calibration 1 Connect the AC voltage L1 L2 and ground to the proper terminals on the Series 988 See Chapter 2 in the user s manual 2 For Input 1 calibration Connect the decade box to terminals 8 9 and 10 on the 988 terminal strip see below Use 20 to 24 gauge copper wire Remove the control from the case and set the Input 1 DIP switches to 1 OFF 2 OFF 3 ON For Input 2 calibration Connect the decade box to terminal 18 19 and 20 on the 988 terminal strip see below Use 20 to 24 gauge copper wire If you have model number 98 __ 2 remove the control from the case and set the Input 2 DIP switches to 1 OFF 2 OFF 3 ON To 8or 18 To 9 or 19 Series 98X
18. libration Manual mVDC Process Input mVDC Process Input Procedure 0 to 50mVDC and 0 to 100mVDC units Equipment Required e Precision millivolt source 0 100mV minimum range with 0 001mvV resolution Setup and Calibration 1 Connect the AC voltage L1 L2 and ground to the proper terminals on the Series 988 See Chapter 2 in the user s manual 2 For Input 1 calibration Connect the millivolt source to terminal 8 and terminal 10 on the 988 terminal strip Use 20 to 24 gauge copper wire Remove the control from the case and set the Input 1 DIP switches to 1 ON 2 OFF 3 ON For Input 2 calibration Connect the millivolt source to terminal 18 and terminal 20 on the 988 terminal strip Use 20 to 24 gauge copper wire Remove the control from the case and set the Input 2 DIP switches to 1 1 ON 2 OFF 3 ON 3 Apply power to the unit and let it warm up for 15 minutes After warm up put the unit in the CAL menu See Page 6 When performing calibration procedures always do the Input 1 prompts beginning with an A first then continue on to the Input 2 prompts beginning with a B See the Calibration menu on Page 6 4 Atthe A OU or B OU prompt enter 0 000mV from the millivolt source to the Series 988 Allow at least 10 seconds to stabilize Press the Up key to change the upper display to YES Press the Mode key 5 At the A100 or B100 prompt enter 100 00mV from the voltage source to the Series 988 Allow
19. roper terminals on the Series 988 See Chapter 2 in the user s manual 2 For Output 1 calibration Connect the digital voltmeter to terminal 13 and terminal 14 Set the DVM to read a range of 0 to 10VDC Connect the leads of the DVM to measure volts DC For Output 2 calibration Connect the digital multimeter to terminal 16 and terminal 17 Set the DVM to read a range of 0 to 10VDC Connect the leads of the DVM to measure volts DC 3 Apply power to the unit and let it warm up for 15 minutes After warm up put the unit in the CAL menu See Page 6 When performing calibration procedures always do the Output 1 prompts beginning with a 1 first then continue on to the Output 2 prompts beginning with a 2 See the Calibration menu on Page 6 4 Atthe 1 Oor2 0 prompt the multimeter should read approximately O Volts Use the Up or Down keys to adjust the reading on the multimeter for 0 0VDC 0 1VDC Allow the control to stabilize for 10 seconds Press the Mode key to enter and advance to the next prompt 5 Atthe 110 or2 10 prompt use the Up or Down keys to adjust the reading on the multimeter for 10 0VDC 0 1VDC Allow the control to stabilize for 10 sec onds Press the Mode key to enter and advance to the next prompt To con clude the process output calibration press the Display key 16 WATLOW Series 988 Calibration Manual mA Retransmit Output 3 Procedure Equipment Required e 41 2 digit D
20. t and let it warm up for 15 minutes After warm up put the unit in the CAL menu See Page 6 4 At the 3 LO prompt the multimeter should read approximately O volts Use the Up or Down keys to adjust the reading on the multimeter for 0 0VDC 0 1 volt Allow the control to stabilize for 10 seconds Press the Mode key to enter and advance to the next prompt 5 At the 3 HI prompt use the Up or Down keys to adjust the reading on the multi meter for 10 0VDC 0 1VDC Allow the control to stabilize for 10 seconds Press the Mode key to enter and advance to the next prompt To conclude the voltage process retransmit output calibration press the Display key WATLOW Series 988 Calibration Manual 17 18 WATLOW Series 988 Calibration Manual Watlow Process Controls Calibration Manual Watlow Controls 1241 Bundy Blvd P O Box 5580 Winona MN 55987 5580 Phone 507 454 5300 Fax 507 452 4507
21. the Up or Down key to change the upper display to read YES press the Mode key The original factory calibration values are restored The dFL Prompt To set the operating parameter defaults for either domestic or international use the dFL default prompt at the end of the Calibration menu Once you have entered the Calibration menu use the Mode key to advance to the dFL prompt Press the Up or Down key to change the upper display to US or SI For domestic prompts select US and receive F e Rate In minutes e Proportional band in degrees or units e Reset in repeats per minute For international prompts select SI and receive e e Derivative in minutes e Proportional band in of span e Integral in minutes per repeat Input Calibration Once you enter the Factory menu press the Up or Down key until the CAL prompt appears in the upper display with Fcty in the lower display Press the Mode key to advance to the first calibration prompt See Figure 2 on the previous page The upper display shows the prompt default no while the lower display indicates the input signal prompt Each input calibration prompt is preceded by an A or B signifying Input 1 or 2 respectively Refer to the Calibration menu on the previous page again Before advancing to the next prompt when calibrating always apply the correct input signal and allow to stabilize for 10 seconds before changing the upper display to YES If the parameter is left at no the calibr
22. ures carefully and have the proper equipment called for in each procedure The Factory Fcty Menus P The Fcty prompt consists of three menus PLOC diAg and CAL The Fcty prompt will not appear if the hardware lockout DIP switch is ON Refer to Chapter 1 of the Users Manual white book e The Panel Lockout PLOC menu is explained in detail in the Series 988 Users Manual e The Diagnostics diAg menu contains specific information for each control It is explained in detail on Page 4 of this manual e Inthe Calibration menu CAL various input signals must be supplied for the control to go through its auto calibration See Page 5 for the complete Calibration menu and procedures Make sure the input type DIP switches are in the proper position before beginning Refer to the 988 Users Manual Entering the Fcty Prompt The Fcty prompt can only be entered from the SEt prompt e Press the Up Down keys simultaneously for 3 seconds 1 second Any inad vertent change in the displayed data when pressing the Up Down keys is ignored The SEt prompt appears in the lower display Continue pressing the Up Down keys simultaneously for another 3 seconds and the Fcty prompt appears in the lower display with PLOC in the upper display For 981 984 units the dlAg prompt appears in the upper display WAROW 3 Seconds LOW in PE PL g c PROCESS PROCESS GEL Feky L1 L2 L3 L4 L1 L2 L3 L4 ome 0 AES JJ I4 2 SERIES 988
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