Lorentz PS1200 User Manual

50
These tests are extremely helpful when trying
to assess the performance of a system, or
locate a fault. These procedures will help you
to fill out the Problem Report (Section 9.5).
Obtaining and using a multimeter Refer
to Section 13.7, and to your meter’s instruc-
tion manual. Measuring current (amps) is
easiest if you have a clamp-on ammeter, as
shown in photos 2A, 4A and 6A.
Probe input Some meters give a choice of
probe sockets. The negative (black) probe
ALWAYS goes in the “COM” (common)
socket. The + (red) probe input varies, and is
specified below.
9.6 Electrical Testing Illustrated
WARNING
These tests pose
potential shock
and burn hazards.
Follow appropri-
ate safety precau-
tions.
WARNING To
measure voltage,
put the + probe in
the VOLTS socket
on the meter. If it
is in an AMPS
socket, attempting
a voltage reading
will cause a short
circuit and
potential damage.
Range If your meter is “auto-ranging”, this
does not apply. Otherwise, use the range
than the reading you expect. For example, in
Test #1, “normal” voltage is around 80. The
proper range may be 100V or 200V, depend-
ing on your meter design.
Access Open the junction box for access to
the terminals. The appearance of your wiring
may vary.
Part 1 – Testing the Solar Array (DC)
REFER TO THE NUMBERED PHOTOS ON THE FOLLOWING PAGE
This test refers to a 48V solar array with a PS600 pump set. Your system voltage
may vary from that
*) Test 4 or 4A – The current is determined
by both the array AND the load (current
draw of the pump system). If the pump is
not under full load (like in a bucket), the
current may be as little as 1 amp.
BATTERY SYSTEMS Perform tests #
1, 3 and 4 (4A), as above. Normal result
for #1 should equal the battery voltage,
typically 44-58V Normal result for #3 is
slightly lower, not more than 2V lower.
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Lorentz PS1200 Specifications

General

Brand	Lorentz
Model	PS1200
Category	Water Pump
Language	English