Attaching 'Wired' Sensors/Probes to iSense Transmitters

Contents

To Attach ‘Wired’ Sensor(s)Probe(s) to the iSense Unit:

1.Remove the iSense Unit’s front cover.

•See Removing the Front Panel.

2.Loosen one of the input glands.

•The number of glands will depend on the number of Channels the Unit has and whether the Unit is supplied with an external power supply.

•Start with the left-hand gland for the first probe to be added. See Figure 214 below:

Wired iSense Probes 1

Figure 214
Loosening the Input Gland(s)

3.Thread the probe’s exposed wires through the gland until there is enough length for the wire to reach the Sensor/Probe Connection Terminal at top of the circuit board. See Figure 215 below.

4.Tighten the gland.

5.Using a screwdriver, press down on the Chan A GND Terminal Release Lever to open the Chan A GND (-ve) terminal. See Figure 215 below:

iSense Wired Probes 8

Figure 215

6.Thread the exposed end of the probe’s white wire and the shield into the open Chan A GND terminal. See Figure 216 below.

7.Release the lever.

8.Using a screwdriver, press down on the Chan A + Terminal Release Lever to open the Chan A + (+ve) terminal. See Figure 214 above.

9.Thread the exposed end of the red wire into the open Chan A + terminal. See Figure 216 below.

iSense Wired Probes 7

Figure 216

➢Note the Thermistor Probe’s shield connected to the Chan A GND terminal along with the white wire in this example.

10.Release the lever.

11.Repeat Steps 2 – 10 for any further probes for 2 or 3 Channel iSense devices; connecting additonal probes to Chan B GND/Chan B + and Chan C GND/Chan C + terminals respectively. See Table below:

Thermistor Type	Chan A + (+ve) EMS CH1	Chan A GND (-ve)	Chan B + (+ve) EMS CH2	Chan B GND (-ve)	Chan C + (+ve) EMS CH3	Chan C GND (-ve)
Single Channel	Wired probe’s Red wire	Wired probe’s White wire	none	none	none	none
Dual Channel	First Wired probe’s Red wire	First Wired probe’s White wire	Second Wired probe’s Red wire	Second Wired probe’s White wire	none	none
Triple Channel	First Wired probe’s Red wire	First Wired probe’s White wire	Second Wired probe’s Red wire	Second Wired probe’s White wire	Third Wired probe’s Red wire	Third Wired probe’s White wire

Table

Note:

The Thermistor Probe(s) shields for the IS02 Unit should also be connected to the Chan A GND (for 1st probe), Chan B GND (for 2nd probe) and Chan C GND (for 3rd probe) terminals.

Note:

Standard Thermistors cable sheath = White
Waterproof Thermistors cable sheath = Orange