CIRCUTOR AR5L Series User Manual

Page 7

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7

- Small size, low weight, portable instrument.
- True R.M.S. measuring system.
- Instantaneous, maximum and minimum values of each discrete electric

parameter.

- Electrical energy meters incorporated
- Harmonic measurement
- Neutral current measurement (only in AR5-L model)
- RS-232 communication to PC
- Ability of setting a recording threshold, so that data is only recorded in

memory when measured values are not within the defined threshold (see
Section 6.1.2.2.-TRIGGER: Trigger conditions).

- Automatic data collection in memory at regular user-definable periods.

Depending on the type of circuit under analysis, following enumerated

parameters are measured and can be saved in memory:

NOTE: It’s not allow to save cos

ϕ

data in memory. Only can be read on

display.

4-wire three-phase system:

Parameter

Symbol

L1 L2 L3 Three-phase value

Phase-to-Neutral voltage

V

x

x

x

Current

A

x

x

x

x

Neutral current
(only in AR5-L model)

I

N

x

Frequency

Hz

x

Active power

kW

x

x

x

x

Reactive power L

kvarL

x

x

x

x

Reactive power C

kvarC

x

x

x

x

Apparent power

kVA

x

Power factor

PF

x

x

x

x

Active energy

kW h

x

x

x

x

Reactive-energy (inductive)

kvaLh

x

x

x

x

Reactive-energy (capacitive)

kvaCh

x

x

x

x

Voltage harmonics

x

x

x

Current harmonics

x

x

x

Current Neutral harmonics
(only in AR5-L model)

x

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