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The mA output is galvanically isolated. It can be active (which means that the receiver device
connected to it should have a passive input) or passive (which means that the receiver device
must provide the power supply for the current loop). It is recommended to use a receptor with
an input resistance of less than 700 Ω to guarantee correct operation.
To configure the analog output type (active or passive) there are two jumpers placed just
behind the terminal strip. For the passive mode the jumpers must be situated between pins
2 and 3 and for active mode the jumpers must be between pins 1 and 2.
NOTE: The analog output has protection against reversed polarity. Due to another
protection against over voltages, if a reversed supply voltage greater than 32 V is applied to
the loop, the equipment may be damaged.
2.1.4
Transducers wiring
The transducers are identified as TR1 and TR2. Be sure to connect the cable TR1 in the TR1
terminals in the circuit board and the cable TR2 in the TR2 terminals. The exchange of the
transducers can result in a loss of precision of the values measured by the instrument.
Transducer cables are supplied with plastic indicators 1 and 2 to be connected to the
transducers TR1 and TR2 respectively.
Terminal
TR1 +
-
TR1
TR2 +
-
TR2
10
Live (positive)
Shield (negative)
Live (positive)
Shield (negative)
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