• Gossen Metrawatt
  • Camille Bauer

Characteristic Values

METRAHIT AM XTRA (METRAHIT X-TRA) METRAHIT AM PRO (METRAHIT PRO) METRAHIT AM BASE (METRAHIT BASE) METRAHIT AM TECH (METRAHIT TECH)
Item number M240A M242A M241A M243A
Product details page Details Details Details Details
Display
Indication Analogue/digital Analogue/digital Analogue/digital Analogue/digital
Indication digits 12000 12000 12000 12000
Analogue bar graph display x x x x
Analogue bar graph display analogue/logarithmical
Multiple display
Measuring range selection Manual/automatic Manual/automatic Manual/automatic Manual/automatic
Basic data
Type of measurement TRMS TRMS TRMS TRMS
True RMS measurement x x x x
Basic accuracy 0.05% 0.05% 0.05% 0.05%
Measuring circuit category CAT IV CAT IV CAT IV CAT IV
Max. voltage measuring circuit category 600V 600V 600V 600V
Relative value measurement x x x x
Min. value storage x x x x
Maximum value storage x x x x
Peak value memory
Data hold x x x x
Special functions
Explosion-tested version
Power and energy measurement
Harmonics analysis/power quality
Crest factor measurement
Rotational speed measuring
Duty cycle measurements x
Pulse freqency measurement MHz @ 5V TTL x
Inductance measurement
Interturn short-circuit high-voltage test
Automatic circuit breaker
Voltage measurement
Voltage measurement types DC
AC
AC Fil
AC+DC 		DC
AC
AC Fil
AC+DC 		DC
AC
AC+DC 		DC
AC
AC Fil
AC+DC
With decibel measurement (dB)
Voltage measuring range DC 0,00001V - 1000V 0,00001V - 1000V 0,00001V - 1000V 0,00001V - 1000V
Voltage measuring ranges DC 100 mV
1 V
10 V
100 V
1000 V 		100 mV
1 V
10 V
100 V
1000 V 		100 mV
1 V
10 V
100 V
1000 V 		100 mV
1 V
10 V
100 V
1000 V
Max. voltage measuring range, DC 1000V 1000V 1000V 1000V
Lowest resolution, DC voltage 0.01 mV 0.01 mV 0.01 mV 0.01 mV
Internal resistance volt DC 10 9 9 9
Voltage measuring range AC 0,00001V - 1000V 0,00001V - 1000V 0,00001V - 1000V 0,00001V - 1000V
Voltage measuring ranges AC 100 mV
1 V
10 V
100 V
1000 V 		100 mV
1 V
10 V
100 V
1000 V 		100 mV
1 V
10 V
100 V
1000 V 		100 mV
1 V
10 V
100 V
1000 V
Max. voltage measuring range, AC 1000V 1000V 1000V 1000V
Lowest resolution, AC voltage 0.01 mV 0.01 mV 0.01 mV 0.01 mV
Frequency range volt AC 15Hz - 20000Hz 15Hz - 10000Hz 15Hz - 1000Hz 15Hz - 10000Hz
Internal resistance volt AC 9
1 		9
1 		9 9
1
Low-pass filter AC voltage (fc) 1kHz 1kHz 1kHz
Voltage measuring range AC+DC 0,00001V - 1000V 0,00001V - 1000V 0,00001V - 1000V 0,00001V - 1000V
Voltage measuring ranges AC+DC 100 mV
1 V
10 V
100 V
1000 V 		100 mV
1 V
10 V
100 V
1000 V 		100 mV
1 V
10 V
100 V
1000 V 		100 mV
1 V
10 V
100 V
1000 V
Max. voltage measuring range, AC+DC 1000V 1000V 1000V 1000V
Lowest resolution volt AC+DC 0.01mV 0.01mV 0.01mV 0.01mV
Internal resistance volt AC+DC 9 9 9 9
Frequency range volt AC+DC 20kHz 10kHz 1kHz 10kHz
Current measurement
Current measurement types DC
AC
AC+DC 		DC
AC
AC+DC 		DC
AC
AC+DC 		DC
AC
AC+DC
Current measurement range DC 0,00000001A - 10A 0.0001A - 10A 0,000001A - 10A
Current measuring ranges DC 0.1 mA
1 mA
10 mA
100 mA
1:00 AM
10:00 AM 		1:00 AM
10:00 AM 		10 mA
100 mA
1:00 AM
10:00 AM
Max. current measuring range, DC 10A 10A 10A
Lowest resolution, DC current 0.01 µA 100 µA 1 µA
Current measurement range AC 0,00000001A - 10A 0.0001A - 10A 0,000001A - 10A
Current measuring ranges AC 0.1 mA
1 mA
10 mA
100 mA
1:00 AM
10:00 AM 		1:00 AM
10:00 AM 		10 mA
100 mA
1:00 AM
10:00 AM
Max. current measuring range, AC 10A 10A 10A
Lowest resolution, AC current 0.01 µA 100 µA 1 µA
Frequency range alternating current 15Hz - 10000Hz 15Hz - 10000Hz 15Hz - 10000Hz
Current measurement range AC+DC 0,00000001A - 10A 0.0001A - 10A 0,000001A - 10A
Current measuring ranges AC+DC 0.1 mA
1 mA
10 mA
100 mA
1:00 AM
10:00 AM 		1:00 AM
10:00 AM 		10 mA
100 mA
1:00 AM
10:00 AM
Max. current measuring range AC + DC 10A 10A 10A
Lowest resolution amps AC+DC 0,00001mA 0.1mA 0.001mA
Frequency range amps AC+DC 10kHz 10kHz 10kHz
Current sensor with clipping x x x x
Current measuring range with current sensors 0.00001A - 10000A 0.00001A - 10000A 0,00001A - 10000A 0.00001A - 10000A
Current transformer with clipping x x x
Current measuring range with current transformers 0.00001A - 10000A 0.00001A - 10000A 0.00001A - 10000A
Clip factors 01:01
01:10
0,111111111
0,736111111 		01:01
01:10
0,111111111
0,736111111 		01:01
01:10
0,111111111
0,736111111 		01:01
01:10
0,111111111
0,736111111
Resistance measurement
Milliohm measurement with 4 wire technique (Kelvin connection)
Continuity test x x x x
Conductivity measurement
Resistance measurement range 0.01Ohm - 40000000Ohm 0.01Ohm - 40000000Ohm 0.01Ohm - 40000000Ohm 0.01Ohm - 40000000Ohm
Resistance measurement ranges 100
1 k
10 k
100 k
1 M
10 M
40 M 		100
1 k
100 k
1 M
10 M
40 M 		100
1 k
10 k
100 k
1 M
10 M
40 M 		100
1 k
10 k
100 k
1 M
10 M
40 M
Max. resistance measuring range 40MOhm 40MOhm 40MOhm 40MOhm
Lowest resolution, resistance 0.01 Ohm 0.01 Ohm 0.01 Ohm 0.01 Ohm
Lowest resolution, milliohm measurement 10mOhm 10mOhm 10mOhm 10mOhm
Nominal test voltage 10 V
Nominal test voltage 50 V
Nominal test voltage 100 V
Nominal test voltage 250 V
Nominal test voltage 500 V
Nominal test voltage 1000 V
Capacitance measurement
Capacitance measurement x x
Capacitance measuring range 0,00001µF - 1000µF 0,00001µF - 1000µF
Capacitance measurement ranges 10 nF
100 nF
1 µF
10µF
100µF
1000 µF 		10 nF
100 nF
1 µF
10µF
100µF
1000 µF
Max. capacitance measuring range 1000µF 1000µF
Lowest resolution, capacitance 0.00001 µF 0.00001 µF
Cable length measurement
Cable symmetry testing for two wire connections a-b-E
Frequency measurement
Frequency measurement x x x x
Measuring range for frequency 0,00001kHz - 1000kHz 0,00001kHz - 100kHz 0,00001kHz - 100kHz 0,00001kHz - 100kHz
Max. frequency measuring range 1000kHz 100kHz 100kHz 100kHz
Lowest resolution, frequency 0.01 Hz 0.01 Hz 0.01 Hz 0.01 Hz
Temperature measurement
Temperature measurement x x x x
Temperature measurement TC x x x x
Temperature measuring range TC -250°C - 1372°C -250°C - 1372°C -250°C - 1372°C -250°C - 1372°C
Temperature measurement RTD x
Temperature measuring range RTD -200°C - 850°C
Max. temperature measuring range 1372°C 1372°C 1372°C 1372°C
Lowest resolution, temperature 0.1 °C 0.1 °C 0.1 °C 0.1 °C
Interface and memory
Interface x
Bluetooth interface
IR interface x
Measured value memory x
Memory capacity for measured values 15400
Miscellaneous
Power supply unit socket x
Device protection category IP 52 IP 52 IP 52 IP 52
Resistance test/diode test x x

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