Super System MKP Installation Manual

0831106 Rev.0

Calibration procedure

MKP
PKP
MKC
PKC

Calibration procedure for MKP - PKP

INSTRUMENT CALIBRATION
PROCEDURES

1 GENERAL GUIDELINES FOR CALIBRATION

For an accurate calibration it is necessary to proceed as follows:
a) - The instrument under calibration should be mounted in its case in

order to keep the internal temperature stable.

b) - The ambient temperature should be stable.

Avoid any drift due to air-conditioning or others.
c) - The relative humidity should not exceed 70%.
d) - The instrument must be in ON condition from 20 minutes at least.
e) - Operate, possibly, in an environment with no electromagnetic

disturbances.
f) - During calibration, connect to the instrument one input at a time.
g) - Before to execute each calibration, be sure that the specific

hardware setting has been made (see "Preliminary hardware

setting" paragraph).
For this calibration procedure it is necessary to use calibrators with

the following accuracy and resolution:

ACCURACY

1) For current input:

2) For voltage input : + 0.005% output + 0.001% range + 5 µV

3) For TC input: + 0.005% output + 0.001% range + 5 µV

4) For RTD input:

5) For cold junction compensation: better than 0.1 °C

RESOLUTION

1) For current input: 0.5 µA

2) For voltage input: 100 µV

3) For TC input: 1 µV

4) For RTD input: 10 mΩ

5) For cold junction compensation: better than 0.1 °C

2 PRELIMINARY HARDWARE SETTINGS

+ 0.025% output + 0.0025% range + 0.01 µA

+ 0.02 % + 0.0025 Ω/decade.

D

C

D

Fig. 2

2.2 MAIN INPUT SELECTION

Set J103 (see fig. 3) according to the desired input type as shown in
the following table.

J103 INPUT TYPE

T/C, RTD,CJ 60 mV 5 V 10 V 20 mA
1-2 open open close open open
3-4 open open close close open
5-6 open open open open close
7-8 open open open open close
5-7 close close open close open
6-8 close close open open open

1 3 5 7

J102

2 4 6 8

1 3 5 7

J103

2 4 6 8

CPU
card

2.1 HOW TO REMOVE THE INSTRUMENT
FROM ITS CASE

1) Switch off the instrument.

2) Push gently the lock A on the right.

3)While the lock A is maintained out, slide out the right side of the

instrument (see fig. 1).

B

A

B

Fig. 1

4) Push gently the lock C on the left.

5)While the lock C is maintained out, slide out the instrument

(see fig. 2).

J205

ON DIP

V301

1 2 3 4

Fig. 3

2.3 AUXILIARY INPUT SELECTION (option)

Set J102 (see fig. 3) according to the desired input type as shown in
the following table.

J102 INPUT TYPE

5 V 10 V 20 mA
1-2 close open open
3-4 close close open
5-6 open open close
7-8 open open close
5-7 open close open
6-8 open open open

2

Calibration procedure for MKP - PKP

2.4 IN CT / FEEDBACK SELECTION

This instrument can use the "IN CT" input or the "Feedback" input;
the two inputs are not contemporarily.
The current transformer input allows you to measure and display the
current running in a load driven by a time proportional control output
during the ON and OFF periods of the output cycle time. By this
feature it is also available the "Out failure detection" function (see
page 66 in the USER MANUAL).
The feedback input is used when the servomotor close loop or the
servomotor open loop with valve position indication outputs is
required.
To select the desired input type, set V301 (see fig. 3) as detailed in
the following table:

Input V301.1 V301.2 V301.3 V301.4
IN CT ON OFF ON ON
Feedback OFF ON OFF ON

2.5 CALIBRATION MODE SELECTION

To start the calibration procedure, the DIP SWITCH V101, mounted
on CPU card, must be set as follows:
V101.1 = Not care condition
V101.2 = OFF
V101.3 = Not care condition
V101.4 = ON
NOTE: during calibration procedure the serial communication
interface will be disabled.

ON DIP

1 2 3 4

V101

3 CALIBRATION PROCEDURE

3.1 FOREWORD

Calibration parameters are divided in groups.
Each group is comprised of two parameters (initial and full scale
values) plus a specific calibration check.

Follows a complete list of the "calibrations groups".

1) ñ.I.tc = Main input calibration, TC input

2) ñ.I.CJ = Main input calibration, cold junction

3) ñ.I.rt = Main input calibration, RTD input

4) ñ.I.ñA = Main input calibration, mA input

5) ñ.I.5 = Main input calibration, 5 V input

6) ñ.I.10 = Main input calibration, 10 V input

7) A.I.ñA = Auxiliary input calibration, mA input

8) A.I.5 = Auxiliary input calibration, 5 V input

9) A.I.10 = Auxiliary input calibration, 10 V input

10) In.Ct = Current transformer input calibration

11) FEEd = Feedback input

12) 05.ñA = Out 5 calibration

13) 06.ñA = Out 6 calibration

14) CAL = Default calibration data loading
NOTE: Calibration groups from group 7 to group 13 will be shown
only when the specific hardware is fitted.

GENERAL NOTE ABOUT CALIBRATION PROCEDURE:
During calibration procedure, when the initial or full scale value of a
group is selected and the middle display shows "OFF", pushing the
FUNC pushbutton the instrument will jump to the next parameter or
check without to modify the previous calibration setting.
In this way it is possible to recalibrate only the desired input or output.
It is also possibe to make a check of one or more calibration group
without to remake the specific calibration.

Fig. 4
When it is desired to exit from calibration mode proceed as follows:

1) switch off the instrument;

2) remove the instrument from its case;

3) select the desired operative mode by setting the DIP switch V101
as described in "Operative mode and hardware lock" paragraph
reported at page 23 of the USER MANUAL.

3.2 CALIBRATION PROCEDURE

HOW TO PROCEED

Switch on the instrument, the upper display will show CAL while the
lower display will show the firmware version.
Push the FUNC pushbutton to display the first calibration group on
the upper display. Depress FUNC pushbutton more times until the
desired calibration group is reached.

1) "ñ.I.tc" - MAIN INPUT CALIBRATION - TC INPUT

The upper display will show "ñ.I.tc".

1.1) "Lr" - INITIAL SCALE VALUE

The lower display will show "Lr"
a)Made the specific hardware setting as described at paragraph 2.
b)Connect the instrument under test to the calibrator as shown in

Fig. 5.

_

3

+

1

Fig.5
c) The upper display will show "ñ.I.tc", the lower display will show

"Lr" while "OFF" will appear on the middle display.
d)Set calibrator to 0.000 mV.
e)Push ▲ pushbutton, the middle display will change to "On".
f) After few seconds, start calibration by pushing FUNC

pushbutton. At the end of this calibration routine, the instrument

will go to the next step.

3