Gossen MetraWatt MetraHit 28s User Manual (English)

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METRA 28S and 29S

Precision Digital Multimeter, Power Meter

3-348-866-03

5/8.00

GOSSEN-METRAWATT GMBH

-Calibration Certificate

DQSCertified per

DIN EN ISO 9001 Reg. No.1262

QUALITY MANAGEMENT SYSTEM

Applications

METRAHit

28S and 29S multimeters are high performance pre-

cision instruments for the lab, service and training.

With a display range of 300,000 digits as well high level accuracy

and long-term stability, they fulfill all calibration and R&D labora-

tory demands. Battery operation allows for on-site precision ser-

vicing and calibration.

Features

Convenient Triple Display

The current measurement value, as well as two other values, are

updated and displayed, e.g. minimum and maximum value. The

usual switching back and forth between display values is no

longer necessary. Display resolution for the main display value can

be varied from 4¾ places for AC to 5¾ places for DC

(METRAHit

29S: from 2¾ to 5¾ places). The measurement rate,

adjustable from 1 ms to 0.5 s, allows for high-speed recorder,

precision data logger and mean value recorder functions with the

help of METRAwin

10/METRAHit

(optional PC software).

High Resolution and Precision

5¾ places, or 309,999 digits, allow for cost effective calibration of

tested devices and components, as well as precise reference

measurements.

Effective Value for Distorted Waveforms

The implemented measurement process provides for effective

value measurement (TRMS) independent of the waveform up to

100 kHz.

Additional Functions

Continuity testing with acoustic signal, event counting (number of

events and event durations), counts zero crossings, stopwatch,

data comparison and wide-range capacitance measurement. The

integrated temperature measurement function allows for the con-

nection of thermocouples and platinum resistance thermometers.

Overload Protection

The instrument is protected from overload in the voltage range.

Acoustic signalling occurs if measuring range limits are exceeded.

The FUSE display indicates a defective fuse in the current range.

Calibration

METRAHit

28S and 29S multimeters are shipped with a

DKD calibration certificate. They can be automatically calibrated

with the CS92E calibration system via the RS232 data interface.

Infrared Measurement Data Transmission *

These devices include a serial, duplex data interface for remote

control and measurement value transmission via infrared light.

METRAHit

28S and 29S

• 300,000 digits and triple display

• Precision multimeter (V, dB, A, Ω, F, Hz, F, °C/°F)

• Current measurement with (clip-on) current transformer:

a transformation ratio of 1000:1 or 10000:1

is utilized for display purposes

• Integrated quartz movement

for recording of MIN/MAX values relative to real-time

•AUTOSELECT

automatic measured quantity recognition (V, Ω and F)

METRAHit

29S

• Power and energy measurements (W, VAr, VA, Wh, PF)

with analog signals or energy measurement with pulses,

current measurement value, mean values and peak

power values are displayed

• Power disturbances recording

• Large, 128 kB measurement value memory

Need help?

Do you have a question about the Gossen MetraWatt MetraHit 28s and is the answer not in the manual?

Gossen MetraWatt MetraHit 28s Specifications

General

Type	Handheld Digital Multimeter
Max Voltage Measurement	1000 V DC, 750 V AC
Max Current Measurement	10 A DC/AC
Resistance Measurement	Yes
Capacitance Measurement	Yes
Frequency Measurement	Yes
Temperature Measurement	Yes
Temperature Measurement Range	-40 °C to 1000 °C
Battery Type	9V Battery
Continuity Test	Yes
Diode Test	Yes
Data Logging	Yes
Power Source	Battery
Safety Category	CAT IV 600 V, CAT III 1000 V
Measurement Functions	Voltage, Current, Resistance, Capacitance, Frequency, Temperature, Continuity, Diode Test
Display	LCD
Voltage Measurement Range	0.1 mV to 1000 V
Current Measurement Range	100 μA to 10 A DC/AC
Frequency Measurement Range	0.1Hz to 100kHz
Weight	Approx. 400 g
Interface	Infrared Interface
Accuracy	Varies depending on range and function, see datasheet