Technical description

The M2842 series "snap-on" isolation amplifier and line conditioner can be used to provide a low cost analogue input to standard PLS resp. SPC’s without the use of an expensive analogue input card. Use an inexpensive digital I/O pin of your SPC to read the output frequency of the M2842. The M2842 can accept current / voltage and temperature signals which are converted to an output frequency proportional to the input signal.
Additionally, the M2842 provides a 2.5kV galvanic separation between input, output and supply. The output section provides NPN, PNP or an active high/low signal. All within a voltage range between 5 and 24Vpp signal level.

As a typical application the M2842 can be used to capture and galvanically isolate a temperature of a PT-100 probe.
If your SPC has no more analogue inputs left, the output frequency of the M2842 is captured with a simple digital input pin. Doing so, the relatively expensive and not galvanically isolated input card of your SPC can be avoided. Since the M2842 is also an isolation amplifier, parasite ground loops or interferences can be avoided.

Another typical application can be the control of a stepper motor control unit with pulses or frequencies if the set point signal is analogue.

The instrument is equipped with 16 pre-programmed ranges which can be selected with program switches on one edge of the instrument. With the “Mpro” software which is free of charge, any range within the measuring range of the instrument is programmable. If you wish, Mostec can program any non standard measuring range.

Adjustable standard ranges:
Input signals: 0…1V, 0…10V, 0…20mA, 4…20mA, -50…300˚C,
-30…170˚C, 0…100˚C
Output signals: 0…1kHz and 0…2kHz, higher frequencies on request.
Supply: Wide range power supply from 20VAC/DC to 253VAC/DC, galvanic 3-way-isolation.