Calibration Procedure Using Scpi Commands - KEPCO BOP 1000W Operator's Manual

TABLE 4-4. CURRENT CALIBRATION MEASUREMENTS AND TOLERANCES
MODEL
BOP 10-75MG
BOP 20-50MG
BOP 36-28MG
BOP 50-20MG
BOP 72-14MG
BOP 100-10MG
REFER TO NOTES FOR SENSE
RESISTOR VALUE OTHER
THAN LISTED HERE
USE SPACE PROVIDED AT
RIGHT FOR CALCULATED
VALUES.
NOTES: The following formulas are used to calculate proper calibration values for Sense Resistors other than
those recommended.
R =
the measured value of the sense resistor in ohms (0.001% accuracy).
SENSE
I =
Nominal (rated) current output of BOP in Amperes (e.g., for BOP 50-20M, I = 20A)
Onom
A. 0V, Tolerance = ±(
R
B. ( SENSE ) x (
R
C. ( SENSE ) x (
4.3.1

CALIBRATION PROCEDURE USING SCPI COMMANDS

The following procedure provides a complete calibration of the unit. Steps 14 and 15 calibrate
the control signal used when the unit is a slave in series configurations. Steps 29 and 30 cali-
brate the control signal used when the unit is a master in parallel configurations. Steps 31 and
32 calibrate the control signal used when the unit is a slave in parallel configurations. There is
no need for a special calibration step when the unit is used as a master in series configurations
since the BOP output voltage (which is calibrated by this procedure) is used to control the next
unit in series.
NOTES: 1. For ZERO calibration, adjust output to obtain value closest to zero.
BOP-1K 080709
SENSE
RESISTOR
VALUE
(SEE NOTE AND
TABLE 4-2)
0.001 Ohm
0.001 Ohm
0.001 Ohm
0.01 Ohm
0.01 Ohm
0.01 Ohm
R
SENSE
SEE
NOTE.
R
SENSE ) x (0.1) x (
I
Onom )--result in V, Tolerance = ±(
I
Onom )--result in V, Tolerance = ±(
CURRENT ±FULL SCALE
ZERO CURRENT
0.075V (MAX)
0V
–0.075V (MIN)
±0.008mV
0.05V (MAX)
0V
–0.05V (MIN)
±0.005mV
0.028V (MAX)
0V
–0.028V (MIN)
±0.003mV
0.2V (MAX)
0V
–0.2V (MIN)
±0.02mV
0.14V (MAX)
0V
–0.14V (MIN)
±0.014mV
0.1V (MAX)
0V
–0.1V (MIN)
±0.01mV
SEE
SEE NOTE B.
NOTE A.
I
Onom )-- result in mV.
R
SENSE ) x (0.1) x (
R
SENSE ) x (0.5) x (
±FULL SCALE
CPR LIMIT
0.075V (MAX)
–0.075V (MIN)
±0.008mV ±0.038mV
0.05V (MAX)
–0.05V (MIN)
±0.005mV ±0.025mV
0.028V (MAX)
–0.028V (MIN)
±0.003mV ±0.014mV
0.2V (MAX)
–0.2V (MIN)
±0.02mV ±0.10mV
0.14V (MAX)
–0.14V (MIN)
±0.014mV ±0.07mV
0.1V (MAX)
–0.1V (MIN)
±0.01mV ±0.05mV
SEE NOTE C.
I
Onom )--result in mV.
I
Onom )--result in mV.
4-5