5. Control and Calibration
This chapter explains the QA-90 maintenance procedures, including
testing and calibration.
5.1 Required Test Equip-
ment
• Power source with a range of 0 - 10 mA (Variref VF12).
• Digital multimeter: Range 0 - 16 A.
• Digital multimeter: Range 0 V and 500 V (HP34401 or similar).
• Metron calibrating unit for earth protection, MΩ.
• Metron calibrating unit for insulation resistance, MΩ.
• Adjustable equipment with an effective output ranging from 0 to
16A for calibrating current consumption.
• Test leads.
• Insulated transformer.
5.2 Preparation and
Adjustments
1. Startup Preparation
a. Press MORE (F1) in MAIN MENU.
b. Press Test according to (F7), and select UL 2601.1.
c. Press Test Type (F6), and select Rapid.
d. Press Test Mode (F5), and select Manual.
e. Press START (F4) then press MORE (F1) twice to advance
to Manual Test Setup Window 3.
Equipment Code : ...> F7
Sequence Name : ...> F6
Class: CL1 ,0 leads in 0 modules.......> F5
MORE MEMORY SETUP START
F1 F2 F3 F4
IMPORTANT!
BEFORE TESTING
THE QA-90 MUST BE POWERED ON FOR AT LEAST 30 MINUTES
PRIOR TO CONDUCTING ANY TESTING.
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