The ISOCON-6 is a universal input Isolating Signal Converter. It can accept
virtually every type of analogue input signal from millivolts to 40Vdc, mA,
thermocouples, RTD’s etc. It also produces 3 types of analogue output; voltage,
mA source, or mA sink.
The unit can be powered by any DC voltage between 12 and 36Vdc or 12 and
32Vac. For mains AC voltage the ISOCON-3 is available which can be powered
from any supply from 90Vac to 264Vac at 50 or 60Hz.
The instrument is packaged in a very compact 12.5mm wide enclosure which can
be mounted on standard TS35 DIN-rail.
The unit can also be equipped with 1 digital output which can be either a relay or
an open collector output, or a second analogue output (see DUALCON-6). Note,
units with above options are housed in a 17.5mm wide box.
1.1.1 Isolation Details
The ISOCON-6 has full 3 port isolation of 1000V between the Input Stage,
Output Stage and Power Supply for functional reasons.
2. UNPACKING
The instrument should be carefully inspected for signs of damage which may
have occurred in transit. In the unlikely case that damage has been sustained,
DO NOT use the instrument, but please retain all packaging for our inspection
and contact your supplier immediately.
The instrument comes with the following items as standard:
1 Isocon-6 Isolating Signal Converter
1 Isocon-6 User Guide
If the instrument has been factory configured the input and output details will be
listed on the Serial number label on the side of the unit. If this label is blank then
the unit will be set to its default configuration which is 4-20mA input and 420mA source output. Please check that the details on the side label are correct,
especially the power supply voltage.
If re-configuration is required please refer to Section 4 of this manual.
IIG-010801 Page 3
ISOCON-6 USERS GUIDE
3. CONNECTIONS
The ISOCON is housed in a compact DIN rail mounting enclosure, with 8
terminals, arranged in 4 rows of 2 terminals. Two rows are at the top of the front
panel and 2 rows are at the bottom. All the sensor input terminals are on the
bottom rows and the power supply and analogue outputs are on the top
terminals.
The diagram below shows how to connect all the different input, output and
power supply types.
2
12-36Vdc / 12-32Vac
1
0V
PSU
2 1
OUTPUT
12 10
INPUT
5 4
INPUT
+ve
12
- ve
10
5
+ve
4
- ve
3
24V Tx Supply
6
0-10V 0(4)-20mA
Current Source Voltage Source
Input: mA, Volts, mV, T/C
2 Wire
Transmitter
4-20mA Sink
24V Supply
4-20mA Sink
Current Sink
2 Wire RTD
125R to 1K
2 Wire Pot
1K to 100K
4 Wire RTD 3 Wire RTD
3 Wire Pot
3 6
Page 4 IIG-010801
ISOCON-6 USERS GUIDE
4. CONFIGURING THE ISOCON
!
DO NOT OPEN UNIT OR ADJUST SWITCHES WITH
POWER SUPPLY, INPUT OR OUTPUT CONNECTED
The ISOCON is an extremely versatile device which can support many different
types of input. The unit is configured by turning the power off, selecting the
internal switch settings required and turning the power back on.
To open the Isocon, 2 catches just below the outer terminal blocks must be pushed
in gently, one at a time. The front of the case can then be pulled and the unit will
come out of the box.
! WARNING !
Press here gently
There are 3 switch banks, S1, S2, and S3, located inside the ISOCON as shown
below:
Switch S3
12 1
12 1110
Switch S2
Switch S1
1
12
1
12
Switch 10 is OFF
Switch 11 is ON
Switch 12 is OFF
ON = 1
OFF = 0
Switch S1 and S2 configure the input type and range, and switch S3 configures the
output type, range and a few additional functions. The switch settings are explained
in the next few pages. The diagrams refer to switch positions 0 and 1, with 0 being
OFF and 1 being ON. This is illustrated in the picture above.
IIG-010801 Page 5
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