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Chapter Three: Field Calibration Guide
3.1. Introduction
There are several variable resistors(SVR or potential-meter) and jumpers
on the PCB. They are used for the adjustments of set points which vary
from different electrical applications.
3.2.Tools Required
Tools Description
1. AC Source : To offer an input power 100/110/120 or
220/230/240Vac to the UPS.
2. Multi Meter : To measure the Input Voltage and Battery Voltage
of the UPS
3. Power Meter : To measure the Output Voltage and Output Power
of the UPS.
4. Resistance Load : Bulb Fixture(700W/1400W/2100W)
5. Screw Driver : flat-type, cross-type
3.3. Technical Data
3.3.1. Battery Charging Voltage(25 C)
Set point
Model
Battery Charging Voltage
1. MS1K 41.4VDC +/-0.5V
2. MS2K 82.8VDC +/-0.5V
3. MS3K 110.4VDC +/-1.2V
3.3.2. Setpoints for Battery Low and Battery Cutoff
Model Battery Low Battery Cutoff
1. MS1K 32.4V +/-0.5VDC 28.8+/-0.5VDC
2. MS2K 64.8V +/-0.5VDC 57.6V +/-0.5VDC
3. MS3K 86.4V +/-0.5VDC 76.8V +/-0.5VDC
3.3.3. Fuse Rating(for Standard Models)
Model No.# MS1K/MS1KR MS2K/MS2KR MS3K/MS3KR
DC Fuse 40A/20A*2 20A*2 20A*2
AC Fuse for
230Vac
10A/250V 20A/250V 25A/250V
AC Fuse for
120Vac
20A/250V 25A/250V 50A/250V