21
BL3300 SERIES MANUAL 01/28/2013
SECTION 4
MAINTENANCE AND ADJUSTMENTS
4.2.7
VOLTAGE METER ADJUST (R61)
1) Turn VOLTS control fully cw.
2) Set selector switch to
N
A.
3) Adjust F.S. potentiometer R61 until front panel voltage meter indicates same as DVM.
4) Repeat 4.2.6 and 4.2.7 for
N
B and
N
C.
4.2.8
CURRENT METER ADJUST (I-METER R58)
1) Set circuit breaker to OFF.
2) Set OUTPUT switch to OFF.
3) Turn VOLTS control fully ccw.
4) Connect load to rear panel OUTPUT terminals
N
A and NEUT.
5) Connect current clamp or other current measuring device across load.
6) Set circuit breaker to ON.
7) Set OUTPUT switch to ON.
8) Set selector switch to
N
A
9) Adjust VOLTS control, making certain it does exceed 12 amps, to 100 VRMS. Increase load until
current read on the measuring device is 7amps.
10) Adjust I-METER potentiometer R58 on
N
A board until front panel current meter indication is same as
load current noted in step 9.
11) Repeat 4.2.8 for
N
B and
N
C.
4.2.9
20 KHz TRIANGLE WAVE TRIM (DIST. TRIM R34)
1) Turn VOLTS control fully ccw.
2) Connect oscilloscope across rear panel
N
A and NEUT
3) Set oscilloscope gain to 500 mV/div.
4) Adjust DIST. TRM potentiometer R34 for smallest waveform peak-to-peak value.
4.2.10 LINE DROP COMPENSATION TRIM
1) Connect selected load to rear panel OUTPUT terminals
N
A and NEUT.
2) Connect DVM at load input so as to compensate for IR losses in the connecting lines.
3) Set circuit breaker to ON.
Summary of Contents for BL3300 Series
Page 9: ...3 BL3300 SERIES MANUAL 01 28 2013 ALL MANUAL ADDENDUMS WILL FOLLOW THIS PAGE ...
Page 15: ...9 BL3300 SERIES MANUAL 01 28 2013 SECTION 2 UNPACKING AND INSTALLATION ...
Page 17: ...11 BL3300 SERIES MANUAL 01 28 2013 FIGURE 2 2 ...
Page 20: ...14 BL3300 SERIES MANUAL 01 28 2013 ...
Page 33: ...3 PHASE POWER CHASSIS MECHNICAL OUTLINE ...
Page 34: ...BL3300 CONTROL CHASSIS MECHANICAL OUTLINE ...
Page 35: ...BL33XX SERIES SINGLE PHASE POWER CHASSIS OUTLINE DRAWING 19 0 TYP 17 TYP 7 0 MAX ...
Page 54: ...6 1 SECTION 6 PARTS LIST AND DRAWINGS f ...
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