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Series TSXT Digital Temperature Switch

Specifications - Installation and Operating Instructions

Bulletin T-TSXT

The 

Series TSXT Digital Temperature Switch

 is designed with many refrigeration 

applications in mind. It accepts up to 3 temperature inputs, of either PTC or NTC 

temperature probe types and can control the compressor, defrost, fan, alarm, and 

light  in  a  refrigeration  system.  These  switches  allow  master/slave  configuration  to 

synchronize the defrost cycle between different units. The Series TSXT programming 

performed by the front keypad, the TS2-K programming key, or by RS485 module 

communication. Standard features include capacitive buttons, real time clock, HACCP 

alarm logging, temperature alarms, and password protected parameter settings.

INSTALLATION

Note: 

Unit must be mounted away from vibration, impacts, water, and corrosive gases.

•  Cut hole in panel 2.80 x 1.14 inches (71 x 29 mm).

•  Use the included gasket, or apply silicone around the perimeter of the hole to prevent 

 leakage.

•  Insert the unit into the hole in panel.

•  Slide removable fitting clips onto unit from back until secure to panel.

•  Wire the unit per the wiring diagram on the product label or by figures below. Avoid 

  installing temperature probe and digital input wiring in the proximity of power cables.

Wiring Diagram

SPECIFICATIONS

Probe Range:

 PTC: -58 to 302°F (-50 to 150°C); NTC: -58 to 230°F (-50 to 110°C). 

Input:

 PTC (1000 Ω @ 25°C) or NTC (10 KΩ @ 25°C) thermistor.

Output:

 Relay 1: SPST relay rated 16 A @ 240 VAC resistive, 10 FLA, 60 LRA; 

Relay 2: SPST relay rated 5 A @ 240 VAC resistive; Relay 3: SPST relay rated 8 A 

@ 240 VAC resistive.

Horsepower Rating (HP):

 1 HP (Relay 1).

Control Type:

 On/off with defrost options.

Power Requirements:

 115 VAC, 230 VAC, 24 VAC/VDC, or 12 VAC/VDC.

Power Consumption:

 3.6 VA @ 115/230 VAC; 1.5 VA @ 12/24 VAC/VDC.

Accuracy:

 ±1% FS.

Display:

 3-digit, plus sign.

Resolution:

 0.1°.

Memory Backup:

 Nonvolatile memory.

Ambient Operating Temperature:

 32 to 131°F (0 to 55°C).

Storage Temperature:

 -4 to 176°F (-20 to 80°C).

Weight:

 115 and 230 V models: 7.2 oz (204 g); 12 and 24 V models: 4.8 oz (136 g).

Front Panel Rating:

 IP65.

Agency Approvals:

 CE, cURus.

1

2

3

4

5

6

7

8

9

10

REL2 REL1  COM

POWER

SUPPLY

1

2

3

4

5

6

7

8

9

10

REL2  REL1 COM REL3

POWER

SUPPLY

11

1

2

3

4

5

Sd3    Sd2   Sd1  Com    In

Sd3   Sd2   Sd1  Com    In

Sd3    Sd2   Sd1  Com    In

6

7

8

9

10

REL1

COM

POWER

SUPPLY

TS2-K

TS2-K

TS2-K

TSXT-XX1

1 relay output

TSXT-XX2

2 relay outputs

TSXT-XX3

3 relay outputs

AUX

SET

GASKET

1.440

[36.5]

1.110

[28.3]

3.110 [79.0]

2.440 [62.0]

Panel cutout 2-51/64˝ x 1-9/64˝ (71 x 29 mm)

MODEL CHART

Model

Supply Power Outputs Model

Supply Power Outputs

TSXT-211

TSXT-221

TSXT-231

TSXT-241

TSXT-212

TSXT-222

115 VAC

230 VAC

12 VAC/VDC

24 VAC/VDC

115 VAC

230 VAC

1

1

1

1

2

2

TSXT-232

TSXT-242

TSXT-213

TSXT-223

TSXT-233

TSXT-243

12 VAC/VDC

24 VAC/VDC

115 VAC

230 VAC

12 VAC/VDC

24 VAC/VDC

2

2

3

3

3

3

DWYER INSTRUMENTS, INC.

P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A.

Phone: 219/879-8000
Fax: 219/872-9057

www.dwyer-inst.com
e-mail: [email protected]

®

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