Quadlogic MiniCloset-5c, Installation Manual

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Chapter 5 Using the Meter
© COPYRIGHT 2009
Quadlogic Controls Corporation
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2. Release the Display Scroll button. Scroll down by pressing and releasing the Display
Scroll button until the “Volts” screen is displayed (examples shown for 120V, 277V,
and 347V):
3. Verify that phases A, B, and C are displaying voltages within normal range, which is
-10% to +10% of the rated voltage.
II. Verifying kWh Reading
1. Press and hold the Display Scroll button until the following menu is displayed:
2. Release the Display Scroll button. Scroll down by pressing and releasing the Display
Scroll button until the following screen is displayed, indicating the All Hours kWh
reading for Meter # 1 (M# 1):
3. Verify that the kWh value increases on the LCD (assumes active load).
4. To view screens for Meters 2 to 8 (M# 2 to M# 8 for a 3-Phase Meter) repeat steps 1
to 3 as above.
III. Verifying Current and Energy
1. Press and hold the Display Scroll button. Scroll down by pressing and releasing the
Display Scroll button until the following menu heading is displayed:
2. Release the Display Scroll button. Scroll down by pressing and releasing the Display
Scroll button until the following screen is displayed:
The A(mperage) reading is the indication of current. The A(mperage) reading in the display
above will always be a positive number, even if the CT was incorrectly installed. Check the
reading, and using the correct multiplier, see if it indicates the approximate expected
current. Remember that this applies to Phase 1 only. If all the numbers on the multiplier
screen (under the Phase Diagnostics menu in Figure 5-2) were 1.00 and the current
transformers are 100:0.1, the correct multiplier is 1 and the readings are the actual values
seen on the LCD. If the CT’s are 200:0.1, multiply the LCD reading by 2.
The W(att) reading is the indication of power. The W(att) reading will also count forward
when viewed on the LCD. A negative power reading is indicative of an incorrectly installed
CT, or one that is cross-phased with the wrong voltage (phase) leg. The R(eactive) reading
kWH
Registers