67
FIGURE 6
12.
ORIGINATOR: ALEX
REY
13.
DATE: 7/29/96
PAGE
ISSUED:
DATE:
2 OF 2
radiant technology corporation
ENGINEERING
SPECIFICATION
ES NO: 00028
REVISIONS
13.1.
A
13.2.
B
14.
APPROVAL
09/16/96
05/26/99
SCR POWER CONTROL PCB CALIBRATION, OPTO22 CONTROL SYSTEM
1.
SCOPE
This procedure covers the zero crossing and span adjustment for 50Hz or 60Hz SCR power
control PCB.
NOTE: This procedure should be performed every six months to ensure proper furnace
operations.
3.1
Zero Crossing Adjustment
The zero potentiometer has both positive and negative voltages available. By
turning the zero control clockwise the unit’s output voltage will increase
proportionately to the adjustment. Turning it counterclockwise will decrease it.
3.2
Span Adjustment
The span potentiometer is used to adjust the maximum output. It will adjust a
command signal input. Clockwise adjustment increases the output while
counterclockwise decreases the output.
2.
TEST EQUIPMENT REQUIRED
2.1
You MUST use a true RMS Voltmeter.
2.2
Trimpot adjustment tool.
Summary of Contents for 2115150301
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