KEPCO KIT 219-0452, BIT 4886 Firmware Upgrade for BOP 100-1M-4886-25968 - Manual (Page 8)

8
228-1481 REV 3 021704
KEPCO, INC. " 131-38 SANFORD AVENUE " FLUSHING, NY. 11352 U.S.A. " TEL (718) 461-7000 " FAX (718) 767-1102
http://www.kepcopower.com " email: [email protected]
16.The text window reads
Curr MIN
and the message Measure and Adjust. is displayed. Using the !
and " and
!
and
"
buttons (see PAR. 3.3.1.1), adjust until DVM reading is as specified in Table 3-3.
NOTE: If the <<<— or —>>> button is depressed, proceed to step 15 after clicking OK.
17.The text window reads
Curr PROTECT
and the message Measure and Adjust. is displayed. Using the
! and " and
!
and
"
buttons (see PAR. 3.3.1.1), adjust until DVM reading is as specified in Table
3-3. Click OK when done.
18.Current calibration is complete. If desired, the current calibration can be repeated by clicking Curr at the
calibration panel (Figure 3-4).
19.To exit Calibration, click on the Calibration On button on the main panel (Figure 3-3). This will open a
panel that allows the calibration to be saved. Click SAVE to save the calibration constants (both voltage
and current), or CANCEL to return to the old calibration.
20.Upon completing calibration, seal adjustment potentiometers A1R81 and A1R83 on BOP using sealant
(see Table 1).
TABLE 3-3. CALIBRATION MEASUREMENTS AND TOLERANCES - CURRENT
MODEL
SENSE
RESISTOR
VALUE
(SEE NOTE
AND
TABLE 3-4)
CURRENT
ZERO
HIGH
CURRENT
ACCURACY
CURRENT
PROTECT
ACCURACY
PAR. 3.3.1
STEP 14
PAR. 3.3.1
STEP 15, 16
PAR. 3.3.1
STEP 17
BOP 100-2M 1 Ohm
0V
±0.00005V
2V (MAX)
-2V (MIN)
±0.00015V
2V (MAX)
±0.0006V
REFER TO NOTES IF
EXACT SENSE RESISTOR
VALUE IS KNOWN.
R
SENSE
SEE
NOTES.
SEE
NOTE A.
SEE
NOTE B.
SEE
NOTE C.
USE SPACE PROVIDED
AT RIGHT FOR
CALCULATED VALUES.
NOTES: The following formulas are used to calculate proper calibration values if the
exact Sense Resistor value is known.
R
SENSE
= the measured value of the sense resistor to 6 places (minimum).
A. Adjust to 0V ±( R
SENSE
) ( 0.00005 )
B. Adjust V to ( R
SENSE
) (
2
)
±
( R
SENSE
) (
0.00015
)
C. Adjust V to ( R
SENSE
) ( 2 ) ± ( R
SENSE
) ( 0.0006 )
TABLE 3-4. SUGGESTED SENSE RESISTORS
VALUE KEPCO PART NO. MANUFACTURER MANUFACTURER PART NO.
1 OHM 115-2996 ISOTEK RUG-Z-1R00-0.1 TK10
NOTES:
1. For Sense resistor values not listed, calculate the nominal value and tolerance as follows:
Nominal Value (Volts) = Actual Sense resistor resistance (Ohms) (measured to 8 places) x rated current (Amps)
Tolerance (Volts) = Nominal value (Volts)/32000
2. Sense resistor must be used with heat sink capable of dissipating 10 times rated power with a minimum surface area of 36 square
inches to maintain thermal stability during calibration.