Three - Phase Power Measurements - Urrea UD370 Manual De Usuario

The Meter is powered by a single
9V battery (NEDA Type 1604, 6 LF
22 or 006 p). To guarantee proper
functioning of the meter, the
specified battery alkaline or other
long-life batteries are recommended.
If the low-battery indicator is shown
in the display, replace the battery by
using the following procedur.
WARNING: TO PREVENT ELECTRICAL
HAZARD OR SHOCK, TURN THE METER
OFF AND DISCONNECT TEST LEADS
BEFORE REMOVING THE BACK COVER.
1. Unclamp the Meter from any
conductor, and turn it off by pressing
the ON-OFF pushbutton.
2. Place the Meter face down on a
non-abrasive surface and completely
loosen the three rear panel screws
with a Phillipshead screwdriver.
3. Grasp the bottom of the rear cover
and lift it free of the case.
4. Lift the battery from the case,
and carefully disconnect the battery
connector leads.
5. Snap the battery connector leads
to the terminals of a new battery
and reinstall the battery cover. Then
insert the battery into position. Dress
the battery leads so that they will not
be pinched between the case bottom
and the case top. Do not discard
battery cover.
6. Replace the rear cover, ensuring it
slips beneath the hold-down lip (next
to the jaws) and fits securely into
position.
7. Reinstall the three securing screws.
If the Meter will not be used for
periods of longer than 60 days,
remove the battery and store it
separately.
E N G L I S H
5.2 Maintenance
Repairs or servicing should be
performed by qualified personnel
only.
WARNING: TO AVOID ELECTRICAL
SHOCK OR DAMAGE TO THE METER,
DO NOT GET WATER INSIDE THE CASE.
REMOVE THE TEST LEADS AND ANY
INPUT SIGNALS BEFORE OPENING THE
CASE.
Periodically wipe the case with a
damp cloth and detergent; do not use
abrasives or solvents.
5.3 Calibration
The Meter should be calibrated
annually. Regarding the service /
calibration information on the Meter,
contact the nearest distributor of the
Meter.
6. THREE - PHASE POWER
MEASUREMENTS
Refer to the following figures for
suggested ways to measure total
power in a three-phase system.
Measurement Connections
(3ø, 3 wire)
19