Digital Multimeter

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Handheld Digital Multimeter

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Product Details:

Brand	Sonel
Warranty	1 Year
Digit Display	4 Digit
DC Voltage	1000 V
Model Name/Number	CMM-40
AC Current	10 Amp
DC Current	10 Amp
Usage/Application	Measure Voltage, Current, Resistances and Capacitance
Weight	342 g
AC Voltage	1000 V
Power Supply	9 V
Dimension	187 x 81 x 55 mm
Protection Class	IP67

The most important features of CMM-40 are:

Autoranging/manual range selection,
DATA HOLD function, for holding measured values,
REL function, which allows you to make measurements relative to a stored reference value,
MAX/MIN function,
PEAK HOLD function,
Memory for 2,000 measurement results,
Continuity test with acoustic signalling (beeper),
AUTO-OFF function,
Display 4 digits (40,000 max),
Double molded, waterproof casing.

Other technical data:

Diode test: I=0.9 mA, U0 = 2.8 V DC
Continuity test: I<0.35 mA, sound signal for R<35
Over range indication: 0L displayed
Crest factor: 3 at full scale up to 500 V; decreasing linearly to 1.5 at 1,000 V
PEAK: captures peaks >1 ms
Sampling rate: 2 times per second
Input impedance: 10 M (V DC), 9 M (V AC)
Display: 40,000 counts backlit LCD with bargraph, 4 digits
Store capacitance: 2,000
Fuses: mA, A range: 0.5 A/1,000 V ceramic fast blow; A range: 10 A/1,000 V ceramic fast blow
Auto power OFF: 15 min.
Accordance with following standards: EN 61010 - 1:2004, EN 61010 - 2 - 032

Electric security:

Type of insulation: double, according to EN 61010 - 1 and IEC 61557
Measurement category: CAT III 1000 V acc. to EN 61010 - 1:2004

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Digital Earth Resistance Tester

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Product Details:

Measurement Range	35 Ohm
Model Name/Number	MRU-200-GPS
Brand	Sonel
Display	LCD
Humidity	80%

Description:
The Mru-200-Gps Offers A Variety Of Measurement Methods For Ground Resistance And Resistiviy

The MRU-200-GPS is the only meter which can perform all ground resistance measurement methods; 2-pole, 3-pole, 4-pole, and impulse earth impedance methods.

Ground resistance using auxiliary electrodes, or with electrodes and clamp for measurements in the presence of multiple ground paths
Ground resistance using double clamps when it is not possible to use auxiliary electrodes
Impulse ground resistance without disconnecting measured grounding
Soil resistivity using Wenner method
Leakage current using current clamp or flexible Rogowsky probe
Measurement of continuity of equipotential bonding and protective conductors (meets IEC 60364-6-61:2000 section 6.12.2) with auto-zero function and 200 mA current

Key Features:

Ground resistance measurement, with 2-pole, 3-pole, or 4-pole methods
Leakage current measurement
Selective measurement with clamp excludes influence from parallel ground points
No opening of rusted conductors needed
Impulse ground resistance measurement at 4/10 s, 8/20 s, or 10/350 s
Two clamps resistance measurement method without auxiliary test probes
GPS coordinates of measurement location are stored with test results

Other Functions & Features:

Resistance measurement of auxiliary electrodes
Measurement of interference voltage and interference frequency
Measurement in the presence of interference voltages at 162/3 Hz, 50 Hz, 60 Hz, and 400 Hz
Automatic or manual selection of frequency of measuring signal
Selection of maximum measuring voltage (25 V and 50 V)
Distance between the electrodes noted in meters (m) and feet (ft)
Memory storage for 990 measurements
Calibration information of test clamp(s)
Real-time clock
USB interface for PC connection
Internal battery with indication of state of charge
Backlit LCD graphic display