ISOCON-6 USERS GUIDE
6. INSTALLATION:
The ISOCON’s input and output circuits are classed as Separated Extra Low Voltage (SELV). This means that they must not be
externally connected to voltages exceeding 30V ac or 60V dc, nor do they generate voltages above these limits internally. Where a
higher voltage input is required a specially designed DIVIDER unit can be used to condition the input signal prior to connection to the
process input terminals.
The ISOCON unit clips directly onto ‘Top Hat’ (TS35) symmetrical DIN rail. Ideally, mounting orientation should be vertical, with the
power supply situated on the top face to minimise temperature rise. Good airflow around the unit will maximise reliability of the
instrument.
The use of bootlace ferrules is recommended on wiring terminations.
Do not exceed terminal torque rating of 0.4 Nm – use an appropriate screwdriver. The unit can be removed from the DIN rail by
sliding a small screwdriver into the slot at the rear of the enclosure on the lower face and gently levering the metal clip, whilst lifting
the unit from the rail.
When the unit is used to convert a thermocouple input it is important when calibrating to ensure that the thermocouple simulator
employed is switched to automatic cold junction compensation and is at the same ambient temperature as the ISOCON. Note that
this is not always easy to achieve, especially if the ISOCON is mounted in a warm cabinet. An altenative method is to use an ice-
point reference and a mV source.
ISOCON-6
24V AC or DC POWERED ISOLATING SIGNAL CONVERTER
