User Manual

ManualsBrandsGossen Metrawatt ManualsDigital Multimeters - HandheldDigital Multimeter, 600V, 300kHz, 60MOhm

GMC-I Messtechnik GmbH 47

Measurements: V/Hz/dB – PQ/ – MHz/% – Ω/nS/R

– /

–

Temp – /m – W/Wh – A/Hz/thd

5.7

Measurement of Active, Apparent and Reactive power – W, VA, VAr

Measurement of Active, Apparent and Reactive Energy – Wh, VAh, VArh

The METRAHIT ENERGY is a compact power meter for direct and

alternating current in single-phase systems. The current path can

be measured directly (up to 10 A, max. 5 min., up to 16 A briefly

for max. 30 s), or with the help of current transformers or current

clamp transformers.

Power Measuring Ranges

(without current clamp; clamp factor can be calculated)

Bandwidth up to 1 kHz; signal components of higher frequency are clipped by in-

put filters.

The instrument automatically selects the measuring range which

allows for highest possible resolution of the applied quantities. It’s

also possible to select a fixed measuring range via the interface or

with the MAN / AUTO key. If a fixed measuring range has been selec-

ted, this selection is retained when the instrument is switched to

the energy measuring mode.

Note

If the measuring instrument activates a measuring range

which is too high during automatic measuring range

selection, this may be due to peak value monitoring (see

section 4.1.3 on page 17). Check the crest factor of the

respective signal in V

AC+DC

or A

AC+DC

Significance of the Power Factor

±1: no phase shifting

–(0 ... 0.99): capacitive; +(0 ... 0.99): inductive

Ð First disconnect supply power from the measuring circuit or

the power consumer, and discharge any capacitors.

Ð Set the rotary switch to W. The instrument displays RMS

values for voltage and current, as well as active power.

Ð You can switch the display back and forth amongst active,

reactive and apparent power with the  and  keys (including

power factor).

Ð The extreme values can be displayed by pressing the DATA/MIN/

MAX key.

Ð Press the FUNC | ENTER key in order to measure active,

apparent and reactive power.

Ð Connect the current and voltage path as shown above.

I / U range 0.6 V 6 V 60 V 600 V

600 μA 0.36 mW 3.6 mW 36 mW 0.36 W

6 mA 3.6 mW 36 mW 0.36 W 3.6 W

60 mA 36 mW 0.36 W 3.6 W 36 W

0.6 A — 3.6 W 36 W 0.36 kW

6 A — — 0.36 kW 3.6 kW

10 A (16 A) — — 0.6 kW (0.96 kW) 6 kW (9.6 kW)

–/N

+/L

Power Consumer

COM

Tem p

AmA