WEG MMW03-CH User manual

MMW03-CH
Multimeter

Designed to measure:
➢Phase-Neutral Voltage; Phase-Phase Voltage;
➢Phase Current; Neutral Current;
➢Frequency;
➢Cosⱷ; Power factor;
➢Active power; Reactive power; Apparent power;
➢THDv, THDi,
➢Voltage and current harmonics up to the 31st order (over
Modbus)
MMW03-CH - Multimeter

Other functions:
➢Indication of phase loss and phase sequence error
➢It determines and saves, in the memory, the maximum and
minimum values of:
✓Voltage;
✓Current;
✓Frequency;
✓cosφ and power factor;
✓THDv; THDi;
✓Active, reactive and apparent power;
MMW03-CH - Multimeter

MMW03-CH - Multimeter
Other functions:
➢Current, voltage, frequency, cosφ and power factor alarms
➢Stores:
✓Hour meter;
✓Total time energized;
✓Total time de-energized;
➢RS485 communication with MODBUS RTU protocol;
➢2 alarm output relays;
➢4-digit password;

Phases
Kilo and Mega
Indicators (7
segments)
Output relays and alarm;
Instant measurement
indicators
Front panel
Capacitive indication
per phase and of the
system
Arrow keys
Maximum or minimum value indicator

MMW03-CH
Menus

Indicators L1, L2 and L3
1) L1, L2, L3 flashing simultaneously and very
slowly (1 per second):
•Error in the phase sequence - voltage;
2) None/all of L1, L2, L3 flashing slowly (1 for
0.5 second):
•Voltage loss in one or all connections
3) None/all of L1, L2, L3 flashing slowly (1 for
0.2 second):
•Current loss in one or all connections;

Measurement menus

V F-N
Phase-Neutral Reading
(F-N)
Phase 1 - F-N Voltage
Phase 2 - F-N Voltage
Phase 3 - F-N Voltage
F-N average voltage
Line frequency
Measurement menus

V F-F
Measurement menus

I (current)
Measurement menus

Cosφ
Measurement menus

PF (Power factor)
Measurement menus

PActive power
Measurement menus

Q Reactive power
Measurement menus

S Apparent power
Measurement menus

THDv
Measurement menus

THDi
Measurement menus

To view max. and min menus,
use the left and right arrow
keys.
Maximum and minimum menus
The maximum and minimum
values are calculated and
stored in non-volatile memory
for the following parameters
➢Voltage (F-N and F-F)
➢Neutral current
➢Frequency
➢Cosφ
➢Power factor
➢THDV
➢THDI
Measurement menus –V (L-N)

To view max. and min. and
demand menus, use the left
and right arrow keys.
Demand Menus
Measurement menus
The demand values are
calculated and stored in non-
volatile memory for the
following parameters:
➢Current
➢Active power
➢Reactive power
➢Apparent power