The evaluator is programmed comfortably via PC or laptop. The relevant parameterization software AD-Studio and the programming interface cable are available as option. The maximum/minimum value evaluator AD-MMA 400 GVC acquires up to four input streams 0/4-20mA, compares them and makes the highest or deepest of these streams available 1:1 at the output. The highly linear and galvanically separated output signal (max. 20mA or 10V) is amplified thereby and can used at the same time. The integrated power supply unit is galvanically separated from the input signal as well as also from the output signal. Customer specific works settings are possible on request.



Acquisition of up to four input signals, comparison and output of the maximum or minimum value.

Business data

Order number
AD-MMA 400 GVC-I 4 Stromeingänge
AD-MMA 400 GVC-U 4 Spannungseingänge
Customs tariff number / country of origin 8543 70 90 / Deutschland


Data sheet pdf en-mma400gvc.pdf (205 kB)
Safety instructions pdf ad-safety-instructions.pdf (43 kB)

Technical specifications

Current inputs
Measuring range -20 ... + 20 mA
Number 1) 4
Input resistance 60 Ohm
Voltage inputs
Measuring range -10 ... + 10 V
Number 1) 4
Input resistance 1 MOhm
1) Please specify current or voltage inputs when ordering. A galvanic coupling is to be excluded.
Output current
Max. output range 0 ... 20,4 mA
Max. burden 500 Ohm
Residual ripple 20 µAss
Output voltage
Max. output range 0 ... 10,2 V
Min. burden 5 kOhm
Residual ripple 10 mVss
Input 13 bit
Output 10 bit
Transmission behaviour
Basic accuracy 0,2 % of full scale
Temperature influence < 100 ppm/K of full scale
Rise time 100 ms (output auf 90 %)
Voltage range AC 50 ... 253 V AC, 50/60 Hz
Nominal voltage AC 230 V AC
Voltage range DC 20 ... 253 V DC
Nominal voltage DC 24 V DC
Power consumption AC / DC 2,2 VA / 1W
Manner of fastening DIN rail 35mm (EN 50022)
Type of protection IP 20
Connector cross section Max. 2,5 mm²
Weight ~ 140 g
Environmental conditions
Ambient temperature -10 ... 60 °C
Storage and transport -10 ... 70 °C (no condensation)
Product family standard 2) EN 61326-1
Emitted interference EN 55011, CISPR11 Cl. B, Gr. 1
2) During electromagnetic disturbance minor changes in output signal are possible.
Electrical safety requirements
Product family standard EN 61010-1
Overvoltage category II
Pollution degree 2
Galvanic isolation, test voltages
Input/output 2,5 kV (1 min)
Signal/auxiliary voltage 3 kV (1 min)
Protective systems
Input/output Over voltage and over current
Power supply Over voltage, over current and over temperature

Block and wiring diagram




CAD / CAE Daten

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