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 T

RACKER

 300 S

ERIES

 P

ROCESS

 C

ONTROLLER

 I

NSTALLATION

 G

UIDE

 30-5012 I

SSUE

 D

1.  Introduction

The Tracker 300 provides solutions for the following applications:

Data acquisition.

Signal conditioning.

Condition monitoring.

Alarm trip.

PID  control.

2.  Safety and EMC Information

Safety EN61010-1:2001
Susceptibility EN61326:1998
Emissions EN61326:1998
CE certified 

2004

Warning: 

This instrument is marked with the international hazard 
symbol. It is important to read this Installation Guide 
before installing or commissioning the instrument as it 
contains important information relating to safety and 
Electromagnetic Compatibility EMC.

Warning: 

This instrument must be fitted within an enclosure that 
provides adequate protection against electric shocks.

Warning: 

The mains terminals must use ferrules. 

The unit is double insulated. 

Note: 

Ensure that the power to the instrument is switched off before 
carrying out any installation or maintenance work.

3.  Installation

To install the instrument, you will need to carry out the following steps:

Make connections to the instrument as shown in Section 4 Connections.

1.

Attach the instrument on a DIN rail. 
To do this, latch the DIN rail recess on 
the back of the instrument on the DIN 
rail top runner. 

2.

Insert a screwdriver into the aperture 
on the spring-loaded securing clip 
located on the back of the instrument.

3.

Lever the screwdriver upward to slide 
the clip away from the instrument 
(take care not to exert too much 
pressure on the instrument casing). 
Ensure the recess is located around 
both the top and bottom DIN rail 
runners then release the clip to 
securely lock the instrument on the 
DIN rail. 

Note: 

•Avoid installing the instrument close to strong magnetic fields, 

e.g. switch gear, contactors or motor starters.

•It is recommended that all connections to the terminals are 

made using ferrules to provide greater reliability and to prevent 
short circuits between adjacent terminals.

•Do not place signal and power supply wiring in the same loom.

•Use screened cables or wires for all signal/sensor leads with 

the screen earthed at one end only.

•The DIN rail should be earthed to ensure the best performance 

of the instrument.

4.  Connections

The diagram below shows the terminal connection arrangement. 

Analogue Input Connections

10V Voltage Input

100mV Input

20mA Input

Thermocouple

RTD (3-wire)

RTD (2-wire)

TPSU Connections (Transducer Power Supply) T321 
& T332 only 

24V DC

10V DC

Two Wire Transmitter Connections (T321 & T332 only)

(24V, 4–20mA input

)

Analogue Output Connections (optional)

Voltage Out

Current Out (source)

Current Out (sink)

T331 Logic Outputs

Relay/SSR Connections (T331)

Relay Connections (T331)

5.  Powering the Instrument

The AC mains supply version operates with voltages in the range 90-
230V

 @ 50/60Hz. The low voltage version operates from an AC/DC 

supply in the range 10-32V .

The diagram shows how the instrument should be connected to the 
appropriate supply. Isolation should be provided by a double pole switch 
and a 630mA or 1A time-delay fuse as appropriate (see diagram below). 
The isolation switch must be readily accessible.

Warning: 

This instrument is designed for installation in an enclosure 
that  provides adequate protection against electric shocks. 
Access to power terminals should be restricted to authorised, 
skilled personnel only. Application of supply voltages higher 
than those for which the instrument is intended may 
compromise safety and cause permanent damage. 

Warning: 

Ensure the power supply is connected to the terminals 
marked 3 & 4 as shown in the diagram above.

6.  Indicators

There are two LEDs located on the front panel of the instrument, identified 
as A and B as shown in the terminal connection arrangement diagram.

LED A – can represent four different functions:

1.

When lit, it confirms that the instrument is receiving mains power.

2.

When flashing fast (approx. 4Hz), it indicates that there is a 
system error.

3.

When flashing slowly (approximately 1 second per cycle), it 
indicates that there is a process error, e.g. sensor break.

4.

When flickering, it indicates that the serial communication 
interface is transmitting.

LED B – functions are user programmable

7.  Serial Communications

The instrument can be configured using either of its serial interfaces:

1.

Connection to the RS485 interface is as shown below.

2.

Connection to the front panel configuration socket is via a special 
cable. The main RS485 interface is disconnected when the 
configuration socket is in use.

There are no internal links or potentiometers. There is no reason to open 
the instrument. 

The Windows compatible software supplied provides access to all 
configuration parameters and allows all setup files to be named and stored 
for future use. Full context-sensitive help and an online User Guide are 
available at all times when using the configuration software. The RS485 
interface can also be used to access real time values, i.e. measurements, 
values, alarm setpoints.

8.  Specification

*Requires an analogue output or Tracker 340 module for PID control.

Optionally 2× relay (replaces SSR drive).

Power Requirements

AC mains supply

90-230V

  50mA  50/60Hz

Low Voltage

10-32V   300mA

Operating Conditions

Ambient temperature

Storage -10°C to 70°C.
Operating 0°C to 60°C.

Humidity

10% to 95% RH non-condensing.

Physical/Mechanical

T330 module 

Weight 167g (max) packed weight 223g.

Dimensions

1

2

3

A

B

CONFIGURATION

LEAD SOCKET

1

2

3

4

5

7

6

8

9

10

11

12

13

15

14

16

Voltage
Source

mV

Source

mA

Source

RTD

RTD

+

-

Transmitter

C - Common

A two relay version of the T331 is 
available where the second relay 
replaces the SSR drive.

NO - Normally Open

V

A

External

Supply

A

NO

C

RELAY2

NO
C

RELAY1

NO
C

RELAY1

SSR

+

-

L(+)

Neutral

N(-)

Live (~)

90-230V
50/60Hz

(630mA)

(+)

_

(-)

+

10-32V
AC/DC

(1A)

A

B

MODEL NUMBER

Tracker 321 Tracker 331 Tracker 332

Universal Input + RS485 Interface

Sensor Excitation (10/24V DC)

Analogue Output (Option)

Auto-tune PID Control

*

1 x Relay + 1 x SSR Outputs

112.6mm

22.5mm

99.0mm

Note: Depth is 114.5mm when mounted

on DIN rail TS35/TS35D

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