Samson STM 5343, STL 5347, TR 5344, STL 5345, TR 5347 Mounting And Operating Instructions

...

Thermostats

Safety Temperature Monitor (STM) Type 5343 Temperature Regulator (TR) Type 5344 Safety Temperature Limiter (STL) Type 5345

Double Thermostat TR/STL Type 5347 Double Thermostat TR/STM Type 5348 Double Thermostat STM/STL Type 5349

Type 5343 Safety Temperature

Monitor (STM)

Type 5347

Double Thermostat TR/STL

Type 5344

Temperature Regulator (TR)

Type 5348

Double Thermostat TR/STM

Type 5345 Safety Temperature

Double Thermostat STM/STL

Mounting and Operating Instructions

EB 5206 EN

Edition January 2009

Limiter (STL)

Type 5349

Contents

Contents Page

1 General safety instructions . . . . . . . . . . . . . . . . . . . . . . . 3

2 Design and principle of operation . . . . . . . . . . . . . . . . . . . 4

2.1 Typetesting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.2 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.3 Mounting accessories . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3 Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3.1 Mounting position . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3.2 Contact thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.3 Thermowell. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.3.1 Wall mounting with thermowell in a different location. . . . . . . . . . 10

3.3.2 Mounting on tanks or in pipes . . . . . . . . . . . . . . . . . . . . . 10

4 Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . 12

5 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

5.1 Temperature regulator (TR) . . . . . . . . . . . . . . . . . . . . . . 13

5.2 Safety temperature monitor (STM) . . . . . . . . . . . . . . . . . . . 13

5.3 Safety temperature limiter (STL) . . . . . . . . . . . . . . . . . . . . 13

6 Lead sealing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

7 Dimensions in mm . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Definitions of the signal words used in these instructions

DANGER!

DANGER indicates a hazardous situation which, if not avoided, will result in death or

NOTICE

NOTICE indicates a property damage message.

serious injury.

Note: Supplementary explanations, infor mation and tips

2 EB 5206 EN

1 General safety instructions

General safety instructions

For your own safety, follow these instructions concerning the mounting, start-up and opera tion of the thermostat:

The thermostat may only be mounted, started up or operated by trained and experienced

personnel familiar with the product. According to these Mounting and Operating Instructions, trained personnel refers to individuals who are able to judge the work they are assigned to and recognize possible dangers due to their specialized training, their knowledge and experience as well as their knowledge of the relevant standards.

On wiring and connecting the thermostat, you are required to observe the VDE

regulations and the regulations of the local power suppliers. Therefore, this type of work must only be performed by trained personnel.

To avoid damage to any equipment, the following also applies:

Proper shipping and appropriate storage are assumed.

Note: The device with a CE marking fulfills the requirements of the Directives 2004/108/EC and 2006/95/EC (EMC). The Declaration of Conformity is available on request.

EB 5206 EN 3

Design and principle of operation

2 Design and principle of

operation

Safety temperature monitors (STM)

The snap-action switch is triggered if the temperature at the bulb rises above the ad justed set point. When the temperature falls below the set point by approximately 8 K, the switch returns to its original position.

The electric circuit is opened when the tem perature at the bulb falls below –20 °C. The circuit is automatically closed again when the temperature at the bulb rises above –20 °C.

The circuit remains permanently open if the measuring system is broken.

Temperature regulators (TR)

The snap-action switch is triggered if the temperature at the bulb rises above the adjusted set point. When the temperature falls below the set point by approximately 4 K, the switch returns to its original position.

The circuit remains permanently open if the measuring system is broken. It is not possi ble to unlock the device.

2.1 Typetesting

The thermostats are typetested by the Ger man Technical Inspectorate (TÜV) according to DIN EN 14597.

Type DIN register number

5343 STW120908 5344 TR120808 5345 STB120708

Safety temperature limiters (STL)

The snap-action switch is triggered and locked if the temperature at the bulb rises above the adjusted set point. When the tem perature falls below the set point by approx imately 10 %, the snap-action switch can be unlocked manually.

The electric circuit is opened when the tem perature at the bulb falls below –20 °C. The circuit is automatically closed again when the temperature at the bulb rises above –20 °C.

4 EB 5206 EN

Design and principle of operation

2.2 Technical data

Single thermostats: Type 5343 (STM), Type 5344 (TR), Type 5345 (STL) Double thermostats: Type 5347 (TR/STL), Type 5348 (TR/STM), Type 5349 (STM/STL)

Permissible ambient temperature

Transportation and storage –30 to +50 °C Service Max. +80 °C Max. pipe temperature when

mounted as a contact thermostat Degree of protection IP 54 according to EN 60529 Cable entry M20 x 1.5 cable gland,

Minimum switching capacity AC/DC = 24 V, 100 mA Maximum switching capacity

Temperature regulator (TR),

Safety temperature monitor (STM)

Safety temperature limiter (STL)

Influence of mean ambient temperature based on the set point

Connection Spring-clamp terminals, 0.75 to 2.5 mm² wire cross-section Materials

Bottom section of the housing PA (reinforced)

Housing cover ABS with window (PMMA)

Bulb and capillary Cu (copper) Weight Single thermostat approx. 0.225 kg

Max. +120 °C

suitable for 6 to 12 mm cable diameter

With 230 V AC +10 %

With 230 V DC +10 %

With 230 V AC +10 %

With 230 V DC +10 %

A shift of the switching point arises when the ambient temperature at the knob and at the capillary deviates from the calibration am bient temperature of +22 °C: Higher ambient temperature→Lower switching point Lower ambient temperature→Higher switching point

This influence is minimized by temperature compensation.

Double thermostat approx. 0.45 kg

NC contact: NO contact:

NC contact: Signal contact:

16 A (2.5); cosϕ= 1 (0.6)

6.3 A (2.5); cosϕ= 1 (0.6)

0.25 A

0.25 A 16 A (2.5); cosϕ= 1 (0.6)

2 A (2.5); cosϕ= 1 (0.4)

0.25 A

EB 5206 EN 5

Design and principle of operation

Switching

differential

Type Set point range Safety temperature monitor (STM)

5343-1 0 to +60 °C

5343-2 +40 to +100 °C

5343-3 +70 to +130 °C

5343-4 +35 to +95 °C

Temperature regulator (TR)

5344-1 0 to +120 °C

5344-2 +20 to +150 °C 4 K

Safety temperature limiter (STL)

5345-1 +70 to +130 °C 10 K

5345-2 +30 to +90 °C

Double thermostat TR/STL

TR: 0 to +120 °C

5347-1

STL: +70 to +130 °C

Double thermostat TR/STM

TR: 0 to +120 °C

5348-1

STM: +70 to +130 °C

Double thermostat STM/STL

STM: +70 to +130 °C

5349-1

STL: +70 to +130 °C

approx. Switching point accuracy

8 K

3 K

10 K

3 K

8 K

3 K

8 K

Range Range

0 to +30 °C:

+30 to +60 °C: +40 to +70 °C:

+70 to +100 °C:

+100 to +130 °C: +35 to +65 °C:

+65 to +95 °C:

0 to +60 °C:

+60 to +120 °C: +20 to +85 °C:

+85 to +150 °C:

+70 to +100 °C:

+100 to +130 °C:

+30 to +60 °C: +60 to +90 °C:

0 to +60 °C:

+60 to +120 °C:

+70 to +100 °C:

+100 to +130 °C:

0 to + 60 °C:

+60 to +120 °C:

+70 to +100 °C:

+100 to +130 °C:

+70 to +100 °C:

+100 to +130 °C:

+70 to +100 °C:

+100 to +130 °C:

+0 K +0 K

+6 K +3 K

+0 K +0 K

+6 K +3 K

+0 K +0 K

+6 K +3 K

+0 K +0 K

–12 K

–5 K –5 K

–12 K

–5 K

–12 K

–5 K

–12 K

–6 K –3 K

–5 K

–12 K

–5 K

–12 K

–6 K –3 K

–5 K

–12 K

–6 K –3 K

–5 K

–12 K

–5 K –12 K

Max.

medium

temp.

+85 °C

+125 °C

+155 °C

+120 °C

+145 °C

+175 °C

+155 °C

+115 °C

+145 °C

6 EB 5206 EN

+ 14 hidden pages

Samson STM 5343, STL 5347, TR 5344, STL 5345, TR 5347 Mounting And Operating Instructions

Specifications and Main Features

Frequently Asked Questions

User Manual