Gossen METRAHIT AM PRO Multimeter

16 multimeter functions
Resolution: ±12,000 digits, 4½-place
Basic accuracy: ±0.05% (VDC)
Voltage ACTRMS, voltage AC+DCTRMS, voltage DC, frequency (Hz, kHz), resistance, diode test, continuity test, current ACTRMS, current AC+DCTRMS, temperature with type K thermocouples
Auto-range current measurement from 0.1 mA to 10 A (16A) via a single connector jack and a single fuse
Additional filter function and voltage measurement with reduced input impedance for limiting interference, e.g. for measurements at frequency converters
Automatic and manual measuring range selection
Automatic storage of measured values: DATA / MIN / MAX
Large, light-blue illuminated display with extra-large characters (15 mm) and an analog bar graph for dynamic processes
Separate battery and fuse compartments
Patented automatic blocking sockets (ABS)
Measuring category: 600 V CAT IV, 1000 V CAT III

Description
Additional information
Specifications

Description

The Metrahit AM PRO is a high-performance digital multimeter from the Metrahit Advanced Multimeter series by Gossen Metrawatt. It’s designed for professional use in a wide range of electrical applications.

Key Features:

Universal use in all fields of electrical engineering!
TRMS measurement up to 10 kHz with digital display (12000 digits) and analog scale
Measurement of voltage and current, DC, AC and AC/DC, resistance, temperature, frequency, continuity/diodes
Automatic measuring range selection and measured value storage
Safety for the user and the instrument in measuring categories CAT IV up to 600 V and CAT III up to 1000 V.
High Accuracy: Offers precise measurements for various electrical parameters, including voltage, current, resistance, capacitance, frequency, and more.
Data Logging: Can record measurement data over time, allowing for trend analysis and long-term monitoring.
Rugged Construction: Built to withstand harsh environments and demanding applications.
Advanced Functions: Includes advanced features such as diode test, continuity test, non-contact voltage detection, and more.

Benefits:

Improved Productivity: Enhanced accuracy and speed of measurements can significantly improve workflow efficiency.
Enhanced Safety: Rugged construction and safety features minimize the risk of electrical hazards.
Data-Driven Decisions: Data logging capabilities enable informed decision-making based on long-term measurement trends.
Versatility: Suitable for a wide range of applications, including electrical installation, maintenance, and troubleshooting.

The Metrahit AM PRO is a versatile and reliable digital multimeter that combines high accuracy, robust construction, and advanced features to provide a powerful and efficient tool for professionals in various fields.

Additional information

Brand	Gossen Metrawatt

Characteristic Values

	METRAHIT AM XTRA	METRAHIT AM PRO	METRAHIT AM BASE	METRAHIT AM TECH

Item number	M240A	M242A	M241A	M243A
Display
Indication	Analogue/digital	Analogue/digital	Analogue/digital	Analogue/digital
Indication digits	12000	12000	12000	12000
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	0.05Percentage	0.05Percentage	0.05Percentage	0.05Percentage
Measuring circuit category	CAT IV	CAT IV	CAT IV	CAT IV
Max. voltage measuring circuit category	600Volt	600Volt	600Volt	600Volt
Relative value measurement	x	x	x	x
Min. value storage	x	x	x	x
Max. 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	0,00001Volt – 1000Volt	0,00001Volt – 1000Volt	0,00001Volt – 1000Volt	0,00001Volt – 1000Volt
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	1000Volt	1000Volt	1000Volt	1000Volt
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	0,00001Volt – 1000Volt	0,00001Volt – 1000Volt	0,00001Volt – 1000Volt	0,00001Volt – 1000Volt
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	1000Volt	1000Volt	1000Volt	1000Volt
Lowest resolution, AC voltage	0.01 mV	0.01 mV	0.01 mV	0.01 mV
Frequency range volt AC	15Hertz – 20000Hertz	15Hertz – 10000Hertz	15Hertz – 1000Hertz	15Hertz – 10000Hertz
Internal resistance volt AC	9 1	9 1	9	9 1
Low-pass filter AC voltage (fc)	1kiloHertz	1kiloHertz		1kiloHertz
Voltage measuring range AC+DC	0,00001Volt – 1000Volt	0,00001Volt – 1000Volt	0,00001Volt – 1000Volt	0,00001Volt – 1000Volt
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	1000Volt	1000Volt	1000Volt	1000Volt
Lowest resolution volt AC+DC	0.01Millivolt	0.01Millivolt	0.01Millivolt	0.01Millivolt
Internal resistance volt AC+DC	9	9	9	9
Frequency range volt AC+DC	20kiloHertz	10kiloHertz	1kiloHertz	10kiloHertz
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	0,00000001Ampere – 10Ampere	0.0001Ampere – 10Ampere		0,000001Ampere – 10Ampere
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	10Ampere	10Ampere		10Ampere
Lowest resolution, DC current	0.01 µA	100 µA		1 µA
Current measurement range AC	0,00000001Ampere – 10Ampere	0.0001Ampere – 10Ampere		0,000001Ampere – 10Ampere
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	10Ampere	10Ampere		10Ampere
Lowest resolution, AC current	0.01 µA	100 µA		1 µA
Frequency range alternating current	15Hertz – 10000Hertz	15Hertz – 10000Hertz		15Hertz – 10000Hertz
Current measurement range AC+DC	0,00000001Ampere – 10Ampere	0.0001Ampere – 10Ampere		0,000001Ampere – 10Ampere
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	10Ampere	10Ampere		10Ampere
Lowest resolution amps AC+DC	0,00001Milliampere	0.1Milliampere		0.001Milliampere
Frequency range amps AC+DC	10kiloHertz	10kiloHertz		10kiloHertz
Current sensor with clipping	x	x	x	x
Current measuring range with current sensors	0.00001Ampere – 10000Ampere	0.00001Ampere – 10000Ampere	0,00001Ampere – 10000Ampere	0.00001Ampere – 10000Ampere
Current transformer with clipping	x	x		x
Current measuring range with current transformers	0.00001Ampere – 10000Ampere	0.00001Ampere – 10000Ampere		0.00001Ampere – 10000Ampere
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)
Resistance test/diode test	x	x	x	x
Continuity test	x	x	x	x
With 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	40Mega-Ohm	40Mega-Ohm	40Mega-Ohm	40Mega-Ohm
Lowest resolution, resistance	0.01 Ohm	0.01 Ohm	0.01 Ohm	0.01 Ohm
Lowest resolution, milliohm measurement	10Milli-Ohm	10Milli-Ohm	10Milli-Ohm	10Milli-Ohm
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	0,00001Mikro-Farad – 1000Mikro-Farad			0,00001Mikro-Farad – 1000Mikro-Farad
Capacitance measurement ranges	10 nF 100 nF 1 µF 10µF 100 µF 1000 �F			10 nF 100 nF 1 µF 10µF 100 µF 1000 �F
Max. capacitance measuring range	1000Mikro-Farad			1000Mikro-Farad
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	0,00001kiloHertz – 1000kiloHertz	0,00001kiloHertz – 100kiloHertz	0,00001kiloHertz – 100kiloHertz	0,00001kiloHertz – 100kiloHertz
Max. frequency measuring range	1000kiloHertz	100kiloHertz	100kiloHertz	100kiloHertz
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	-250Degrees celsius – 1372Degrees celsius	-250Degrees celsius – 1372Degrees celsius	-250Degrees celsius – 1372Degrees celsius	-250Degrees celsius – 1372Degrees celsius
Temperature measurement RTD	x
Temperature measuring range RTD	-200Degrees celsius – 850Degrees celsius
Max. temperature measuring range	1372Degrees celsius	1372Degrees celsius	1372Degrees celsius	1372Degrees celsius
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