Datasheet

GMC-I Messtechnik GmbH 3
METRAHIT27M, 27I and H+E CAR
Milliohm Resistance Meter and Digital Multimeter,
Insulation Tester and Data Logger
Protective Cover for Harsh Conditions
The device features a very compact, rugged design. Beyond this,
it is protected against damage in the event of impacts or dropping
by means of a soft rubber cover with tilt stand. The rubber
material also assures that the instrument does not wander if it is
set up on a vibrating surface.
Characteristic Values
1)
Display: 3¾ places in following ranges: 3 m@ 1A, 30 m, , M@...V,
a different sampling rate can also be selected in the rAtE menu for saving and
transmitting measured values.
2)
Lowest measurable frequency for sinusoidal measuring signals symmetrical to the
zero point
3)
At 0to+ 40C
4)
ZERO is displayed for “zero balancing” function.
5)
Range 3 V~: U
E
=0.15V
eff/rms
. . . 3 V
eff/rms
30 V~: U
E
=1.5V
eff/rms
. . . 30 V
eff/rms
300 V~: U
E
=15V
eff/rms
. . . 300 V
eff/rms
600 V~: U
E
=300 V
eff/rms
. . . 600 V
eff/rms
For voltages > 100 V: power limiting of 1.8 · 10
6
V · Hz
6)
20 45 65 Hz 1 kHz sine, see influences on page 4.
7)
Pulsating measuring current with interval of T = 1 s
8)
Plus sensor deviation
9)
Temperature value is based upon the characteristic curve per EN 60 751.
10)
In the case of high resistance values of greater than 300 M, the capacitive
influence of the person performing the measurement or the measurement cable
may distort the measured value. Use short or shielded measurement cables for this
reason.
11)
In the event of an overcharge, the integrated FF 1.6 A/1000 V fuse blows.
Key
rdg. = reading (measured value), R = measuring range, d = digit(s),
2/4 L = 2/4-wire measurement
Applicable Regulations and Standards
Measuring
Function
Measuring Range
Resolution at Upper
Range Limit
Input Impedance
Intrinsic Uncertainty at Max. Resolution
under Reference Conditions
Overload Capacity
3)
(... % rdg. + ... d) (... % rdg. + ... d)
4¾ 30000 / 3¾ 3000
1)
DC AC
6)
DC AC
6)
Value Time
V
3 V 100 V 2.1 M 2.1 M //<50pF 0.1+10
4)
0.2 + 10 (>500 d)
600 V
DC
AC
eff
sine
Cont.
30 V 1 mV 2.1 M 2.1 M // < 50 pF 0.1 + 5 0.2 + 10 (>500 d)
300 V 10 mV 2.1 M 2.1 M // < 50 pF 0.1 + 5 0.2 + 10 (>500 d)
600 V 100 mV 2.1 M 2.1 M // < 50 pF 0.1 + 5 0.2 + 10 (>500 d)
Open-Circuit
Voltage
Measuring Current,
Approx.
(... % rdg. + ... d)
m@1A
(4 L)
3m 0.001 m 3.5 4V 1A
7)
1+10
0.6 V
11)
Cont.30 m 0.001 m 3.5 4V 1A
7)
0.5 + 10
300 m 0.01 m 3.5 4V 1A
7)
0.5 + 10
m
(4 L)
30 m 0.01 m 3.5 4 V 200 mA
0.25 + 10
0.6 V
11)
4)
Cont.
300 m 0.01 m 3.5 4 V 200 mA
3  0.1 m 3.5 4V 20mA
30  1m 3.5 4V 20mA

(2 L)
300  10 m 3.5 4 V 1 mA 0.1 + 10
4)
600 V
DC
AC
eff
sine
max. 10 s
3k 100 m 3.5 4 V 100 A0.1+5
4)
30 k 1  3.5 4V 20A0.1+5
300 k 10  3.5 4V 20A0.1+5
3 M 100  3.5 4V 10A0.1+5
30 M 1k 3.5 4V 10A1.5+10
300  0.1  3V 1mA 1+5
3V 0.1mV 3V 1mA 1+5
Test Voltage Measuring Current
M@
... V
30 M 0.01 M 50/100/250/500 V
< 1.5 mA
2+10
600 V
DC/AC
max. 10 s300 M 0.1 M 50/100/250/500 V 2 + 10
3000M
10)
1 M 50/100/250/500 V 3 + 10
f
min
2)
(... % rdg. + ... d)
Hz
300 Hz 0.01 Hz
1Hz 0.05 + 5
5)
600 V AC Cont.
3kHz 0.1 Hz
Temperature
Sensor
Measuring Range Resolution
Intrinsic Uncertainty at Max. Resolution
under Reference Conditions (...% rdg. + ... d)
8)
C / F
Pt 100
9)
–200.0  +100.0 C
0.1 K
1 K + 5
600 V
DC
AC
eff
sine
max. 10 s
+100.0  +600.0 C 0.5 + 5
Pt 1000 –200.0  +100.0 C1 K + 5
+100.0  +600.0 C 0.5 + 5
Ni 100 –60.0  +180.0 C0.5+ 5
Ni 1000 –60.0  +180.0 C0.5+ 5
IEC 61010–1
DIN EN 61010–1
VDE 0411 Part 1
Safety requirements for electrical equipment
for measurement, control and laboratory use
Part 1: General requirements
EN 60529
VDE 0470-1
Test instruments and test procedures
Protecti on provided by enclosures (IP code)
DIN EN 61326-1
VDE 0843-20-1
Electrical equipment for measurement, control and
laboratory use – EMC requirements –
Part 1: General requirements