MEN Mikro M76

Specification

Resolution:

22.5 bits @ 10Hz sampling
20 bits @ 50/60 Hz sampling
11 bits @ 1kHz sampling

DC Voltage Measurement:

Maximum input voltage if no further safety measures are taken:

• 60V DC / 42V AC for all measuring ranges

Maximum input voltage if requirements of EN60950 are fulfilled through additional safety measures (see user manual):

• High-voltage input: 500V DC for 500V range
• Normal input: 125V DC for 125mV, 1.25V, 12.5V and 125V range

Measuring ranges:

• -125mV..+125mV
  
• -1.25V..+1.25V
  
• -12.5V..+12.5V
  
• -125V..+125V
  
• -500V..+500V

Measuring accuracy:

• 24 hours, 23°C ±1°C: error < 0.025%
• 90 days, 23°C ±5°C: error < 0.05%
• Temperature coefficient 0°C..+55°C: error < 0.01%
  

Input impedance:

• 40 MOhm @ 500V input (HV)
• 10 MOhm @ 125V and 12.5V range
• > 1 GOhm @ 1.25V and 125mV range

Input current: max. 10pA @ 23°C
CMRR: 100dB @ 50/60Hz
NMRR: 60dB @ 50/60Hz

AC Voltage Measurement:

Maximum input voltage if no further safety measures are taken:

• 60V DC / 42V AC for all measuring ranges

Maximum input voltage if requirements of EN60950 are fulfilled through additional safety measures (see user manual):

• High-voltage input: 250V AC
• Normal input: 60V AC

Measuring ranges:

• 250mV RMS, sine 40Hz..100kHz, error < 5%
  
• 2.5V RMS, sine 40Hz..100kHz, error < 1%
  
• 25V RMS, sine 40Hz..100kHz, error < 1%
  
• 250V RMS (high-voltage input), sine 40Hz..100Hz, error < 1%
  

Crest factor: max. 4
Measuring accuracy @ 50/60Hz:

• o24 hours, 23°C ±1°C: error < 0.5%
• 90 days, 23°C ±5°C: error < 1%
• Range error < 1%

Input impedance:

• High-voltage input: 40 MOhm
• Normal input: 1 MOhm

Input current: max. 10pA @ 23°C
CMRR: 100dB @ 50/60Hz

Sensors:

Resistance temperature detectors (RTD): PT100 or PT1000

• Supported temperature range: -200..+850°C

Thermocouples of type K or type T, option: configuration for other types

• Supported temperature range type K: -200..+1372°C
• Supported temperature range type T: -200..+400°C
  

Line break detection

DC Current Measurement:

Maximum input voltage if no further safety measures are taken:

• 60V DC for all measuring ranges

Measuring ranges:

• -12.5mA..+12.5mA
• -125mA..+125mA
• -1.25A..+1.25A
• -2.5A..+2.5A

Measuring accuracy:

• 24 hours, 23°C ±1°C: error < 0.025%
• 90 days, 23°C ±5°C: error < 0.05%
• Temperature coefficient 0°C..+55°C: error < 0.01%

Shunt:

• 1 Ohm @12.5mA, 125mA range
• 0.1 Ohm @ 1.25A, 2.5A range

AC Current Measurement:

Maximum input voltage if no further safety measures are taken:

• 42V AC for all measuring ranges

Sine 40Hz..100Hz
Measuring ranges:

• 25mARMS
• 250mARMS
• 2.5ARMS

Crest factor: max. 4
Measuring accuracy:

• 24 hours, 23°C ±1°C: error < 0.5%
• 90 days, 23°C ±5°C: error < 1%
• Range error < 1%

Shunt:

• 1 Ohm @ 25mA, 250mA range
• 0.1 Ohm @ 2.5A range

Resistance Measurement:

Measuring ranges:

• 250 Ohm
• 2.5 kOhm
• 25 kOhm
• 250 kOhm
• 2.5 MOhm

Measuring accuracy 250 Ohm, 2.5 kOhm, 25 kOhm, 250 kOhm:

• 24 hours, 23°C ±1°C: error < 0.1%
• 90 days, 23°C ±5°C: error < 0.2%
• Temperature coefficient 0°C..+55°C: error < 0.01%

Measuring accuracy 2.5 MOhm:

• 24 hours, 23°C ±1°C: error < 1%
• 90 days, 23°C ±5°C: error < 2%
• Temperature coefficient 0°C..+55°C: error < 0.1%

Measuring modes: 2- and 4-wire
Maximum measuring voltage: 2.5V

Peripheral Connections:

Via front panel on a 5-pin 5W5S D-Sub receptacle connector with high-voltage contacts (recommended)
Via carrier-board connector (rear-panel I/O) (not recommended)

M-Module™ Characteristics:

A08, D16, INTA, IDENT

Electrical:

Isolation voltage:

• 500V DC between isolated side and digital side
• 180V DC COM to shield
• Voltage between the connector shield and isolated ground is limited to 180V using a varistor; AC coupling between connector shield and isolated ground through 47nF capacitor

Supply voltage/power consumption: +5V (4.85V..5.25V), 700mA max.

Mechanical:

Dimensions: conforming to M-Module™ Standard
Weight: 94g

Environmental:

Temperature range (operation):

• 0 to +60°C or -40 to +85°C screened
• Airflow: min. 10m³/h

Temperature range (storage): -40 to +85°C
Relative humidity range (operation): max. 95% non-condensing
Relative humidity range (storage): max. 95% non-condensing
Altitude: -300m to + 3,000m
Shock: 15g/11ms
Bump: 10g/16ms
Vibration (sinusoidal): 2g/10 to 150Hz
Conformal coating on request

MTBF:

100,000h @ 50°C (derived from MIL-HDBK-217F)

Safety:

THE M76 DOES NOT COMPLY WITH THE REQUIREMENTS OF THE EN60950 STANDARD. THE MAXIMUM INPUT VOLTAGES FOR ALL
TYPES OF MEASUREMENTS ARE 60V DC AND 42V AC. HOWEVER, THE M76 WAS DESIGNED TO PROVIDE HIGH-VOLTAGE FUNCTIONALITY. IF YOU NEED TO APPLY VOLTAGES HIGHER THAN 60V DC AND 42V AC, TAKE APPROPRIATE MEASURES TO KEEP THE SAFETY REQUIREMENTS OF EN60950.
PCB manufactured with a flammability rating of 94V-0 by UL recognized manufacturers

EMC:

Tested according to EN 55022 (radio disturbance), IEC1000-4-2 (ESD) and IEC1000-4-4 (burst)

Software Support:

MEN Driver Interface System (MDIS™ for Windows®, Linux, VxWorks®, QNX®, OS-9®)

ROHS Status:

This product is lead free/ROHS compliant.