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SOLAR300 - SOLAR300N
EN - 128
7.9. USING OF METER IN A THREE PHASE 3 WIRE ARON SYSTEM
CAUTION

The maximum voltage between inputs D1, D2, A1, A2 and A3 is 1000V /
CAT IV 600V to earth. Do not measure voltages exceeding the limits
indicated in this manual. If these voltage limit values are exceeded, the
user may be exposed to electrical shocks and the instrument could get
damaged

If possible, before connecting the meter to the electrical equipment under
test turn the power supply off
Fig. 168: Meter connection in a three phase 3-wire ARON system
1. Check and modify the basic settings of meter if necessary (see § 5.3.1) Set ARON
system option.
2. Connect voltage test leads on Phases L1, L2, L3, and Ground cables considering the
colours as shown in Fig. 168. Verify the result “ 123 ” at display relative to a correct
phase sequence indication (see § 5.2.4.1) and perform the corrections if necessary.
3. Connect the transducer current clamps on Phase L1, L2, L3 cables as shown in Fig.
168 respecting the clamp’s arrow direction indicating the current standard sequence
from generator to load.
On Real Time Values’ section screens (selecting a 3 wire
system preliminarily) always verify the positive value of Active Power and the
power factor relative to load which should be normally inductive
before starting a
recording. Reverse the clamp by 180 degrees on cables in case of negative readings.
4. Supply the electrical installation under test in case it was temporarily put out of service
for meter connection. The values of parameters are shown by meter at display in Real
Time Values’ section (see § 5.2.4.1).
5. Press SAVE key if a instantaneous sample of display values (Instant) should be saved
(see § 5.7). Use HOLD function to stopping the values at display if necessary.
6. Check all settings before start a recording (see § 5.4). Press GO/STOP key to enable
and disable a recording on meter (see § 5.6)