Datasheet

3-349-696-03
2/10.12
GMC-I Messtechnik GmbH
METRALINE Z
CHECK
Loop Resistance Measuring Instrument
Measurement Results
Phase Detection (L)
Table Display
Applications
The METRALINE Z
CHECk
allows for the evaluation of measured imped-
ance in consideration of type, nominal current and disconnection
time. A table with the parameters of various protective devices is
included in device memory.
Applicable Regulations and Standards
Characteristic Values
Fault Loop Impedance / Line Impedance
Nominal Range per EN 61557-3: 0.27  to 200 
Voltage range: 190 to 260 V / 48 to 52 Hz
Load resistance: 50  (variable number of pulses at 10 ms)
Fault Loop Impedance Without Tripping the RCCB
Nominal Range per EN 61557-3: 0.8  to 200 
Voltage range : 190 to 260 V / 48 to 52 Hz
Load resistance: 50  (variable number of pulses and pulse
width)
Short-Circuit Current
IEC 61010-1/-031
DIN EN 61010-1/-031
VDE 0411-1/-031
Safety requirements for electrical equipment for mea-
surement, control and laboratory use
Part 1: General requirements
Part 31: Safety requirements for hand-held probe as-
semblies for electrical measurement and test
IEC 61557-1/-3
DIN EN 61557-1/-3
VDE 0413-1/-3
Electrical safety in low voltage distribution systems up to
1000 V AC and 1500 V DC – Equipment for testing,
measuring or monitoring of protective measures
Part 1: General requirements
Part 3: Loop resistance
IEC 61326-1
DIN EN 61326-1
Electrical equipment for measurement, control and labo-
ratory use
– EMC requirements
Part 1: General requirements
DIN EN 60529
VDE 0470-1
Degrees of protection provided by enclosures (IP code)
Range () Resolution
(
)
Intrinsic Uncertainty Measuring
Uncertainty
0.00 to 4.99 0.01 (3% rdg. + 5 d) (4 % rdg. + 7 d)
5.0 to 49.9 0.1 (3% rdg. + 3 d) (4 % rdg. + 4 d)
50 to 200 1 3% rdg.  4 % rdg.
Range (
) Resolution Intrinsic Uncertainty Measuring
Uncertainty
0.0 to 4.9 0.1 (5% rdg. + 2 d)  (6% rdg. + 2 d)
50 to 200 1  7% rdg.  8% rdg.
Range Resolution Intrinsic Uncertainty Measuring
Uncertainty
0 to 999 A 1 A
Depending on
measuring error
for loop impedance  1 d
Depending on
measuring error
for loop impedance  1 d
1.0 to 9.9 kA 0.1 kA
10 to 23 kA 1 kA
The following measurements can be performed with the
METRALINE Z
CHECk
:
• Fault loop impedance with short-circuit current
• Fault loop impedance with short-circuit current
without tripping the RCCB
• Line impedance with short-circuit current
• Line voltage
• Phase detection
Features
• Table of common protective devices can be displayed
• Digital display, backlit color OLED display,
switching between brief and detailed representation
• LED for measurement point illumination
• Patented means of securing test probes
• Compact and rugged – for service calls and laboratory use