The materials included in this compilation are for the use of Dwyer Instruments, Inc. potential customers and current employees as a resource only. They may not be reproduced, published, or transmitted electronically for commercial purposes. Furthermore, the Company’s name, likeness, product names, and logos, included within these compilations may not be used without specific, written prior permission from Dwyer Instruments, Inc. ©Copyright 2014 Dwyer Instruments, Inc.

1. Digital Temperature Switches
The materials included in this compilation are for the use of Dwyer Instruments, Inc. potential customers and current employees
as a resource only. They may not be reproduced, published, or transmitted electronically for commercial purposes.
Furthermore, the Company’s name, likeness, product names, and logos, included within these compilations may not be used
without specific, written prior permission from Dwyer Instruments, Inc. ©Copyright 2014 Dwyer Instruments, Inc.

2. Overview
TSW
Weatherproof Digital
Temperature Switch
TST/TSXT
Digital Temperature
Switches

3. TSW – Specifications
IP66 Enclosure
Probe Range: -50 to 150°C (-58 to
302°F)
Accuracy: ±1% FS
Control Type: ON/OFF
Output: Single Stage–1 SPDT, Two
Stage–2 SPDT

4. TSW - Features
Configuration key available for programing
multiple units
Password protected parameter settings
Jumper parameter setting lockout
Multiple conduit knockouts for installation
flexibility
Line voltage jumper pins
1 PTC thermistor probe included with control

5. TST – Specifications
Front Display IP65
Probe Range: -50 to 150°C (-58 to
302°F)
Accuracy: ±1% FS
Control Type: ON/OFF
Output: SPDT 16A @ 240 VAC
Resistive

6. TST - Features
Internal Buzzer for probe/memory
error or high/low temperature alarm
conditions
Configuration key available for
programing multiple units
Password protected parameter settings
Capacitive buttons offer a clean look
MODBUS® protocol for remote
communication

7. TSXT - Specifications
Front Display: IP65
Probe Range: -50 to 150°C (-58 to 302°F)
Accuracy: ±1% FS
ON/OFF Control
Up to 3 Relay Outputs
Relay 1 – SPST 16A @ 240 VAC Resistive
Relay 2 – SPST 5A @ 240 VAC Resistive
Relay 3 – SPST 8A @ 240 VAC Resistive

8. TSXT - Features
Models available with 1, 2, or 3 relay
outputs
3 temperature inputs and one digital
input for complete refrigeration
control
Configuration key available for
programing multiple units
Capacitive buttons offer a clean look
MODBUS® protocol for remote
connection

9. Applications
TSW used to control temperature of coolant in
industrial process chillers

10. Applications
TST used to limit fermentation temperature in
brewing systems

11. Applications
TST used to maintain heated water line
temperature in outdoor wood boilers

12. Applications
TSXT used to control
refrigeration and
defrost cycles in
refrigerated cabinets

13. Applications
TSXT used to control refrigeration and defrost
cycles in walk in coolers
Modbus feature offers remote monitoring to
ensure proper function

14. Applications
TST used to maintain heated liquid bath
temperature in industrial parts washers and
ultrasonic cleaners

15. Additional Applications
The TST, TSXT, and TSW can be used in
many other refrigeration, cooling, or low
temp heating applications where On/Off
control is desired

16. TSW – Demonstration
Conduit
Knockouts
on Side,
Bottom and
Back
Process
Value
User
Interface
Buttons
Output On
Indicator
Units
Defrost On
Indicator

17. TSW – Demonstration
Lockout Jumper
Sensor
Input
Line Power
Jumpers
Outputs and
Power Supply
Configuration Key
Input
Label with
Wiring Diagram

18. TSW – Demonstration
Set point adjustment
Press – Display will show “SP”
Press again – Display will show set-point
value “3”
Use and to adjust set-point value
Press to store value
Press and to exit parameter
menu and return to normal operation

19. TSW – Demonstration
Parameter adjustment
Press and hold until display shows “0”
(approximately 8 seconds)
Press again – Display will show “SP”
Use and to cycle through parameter
menu
Press to view parameter setting
Use and to adjust parameter setting
Press to store parameter setting and
return to menu
Press and to exit parameter menu
and return to normal operation

20. PID Loop Controllers

21. Overview
16G PID Loop Controller
1/16 DIN Panel Mount
8G PID Loop Controller
1/8 DIN Panel Mount
4G PID Loop Controller
1/4 DIN Panel Mount

22. 4G/8G/16G - Specifications
Control Types:
PID
PID Program (Ramp/Soak)
Fuzzy logic
On-Off
Manual Control
Output Options:
5A Relay
4-20mA Current
0-10 DC Linear Voltage
12V Pulse
Universal Inputs:
Thermocouples
RTDs
0-10V
4-20mA
0-50mV

23. 4G/8G/16G - Features
RS-485 Modbus communication standard
2 integral user programmable function buttons
Cycle between 2 stored set-points
Cycle between run and stop modes
Cycle between auto and manual modes
Manual reset of alarm conditions

24. 4G/8G/16G – Features
Up to two hardware options can also be selected
when ordering:
Input retransmission (4-20 mA)
Remote set-point adjustment (4-20 mA input)
Digital input which can be programed for:
Hard parameter lockout
Cycle between run and stop modes
Cycle between auto and manual modes
Manual reset of alarm conditions

25. 4G/8G/16G - Applications
16G used to
control damper
position in Dryer
Oven

26. 4G/8G/16G - Applications
PID controllers used
to maintain
temperatures in
medical laboratory
incubation chambers

27. 4G/8G/16G - Applications
PID controllers to run programmed heat cycles
in environmental testing chambers

28. 4G/8G/16G - Applications
PID controllers
used to control
sealing iron
temperature in
packaging
equipment

29. Additional Applications
The 4G, 8G, and 16G can be used in many
other temperature or process control
applications where PID, or multi-step control
is desired