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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
Mounting and
Operating Instructions
EB 5206 EN
Edition January 2009
Type 5345 Safety Temperature
Limiter (STL)
Type 5349
Double Thermostat STM/STL
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Summary of Contents for Samson STM 5343
- Page 1 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 5344 Type 5345 Safety Temperature Type 5343 Safety Temperature Temperature Regulator (TR) Limiter (STL) Monitor (STM)
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Page 2: Table Of Contents
Contents Contents Page General safety instructions ..... . . 3 Design and principle of operation ....4 Typetesting . -
Page 3: General Safety Instructions
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... -
Page 4: Design And Principle Of Operation
Design and principle of operation The circuit remains permanently open if the Design principle measuring system is broken. It is not possi- operation ble to unlock the device. Safety temperature monitors (STM) Typetesting The snap-action switch is triggered if the temperature at the bulb rises above the ad- justed set point. -
Page 5: Technical Data
Design and principle of operation 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. - Page 6 Design and principle of operation Switching Max. differential medium Type Set point range approx. Switching point accuracy temp. Safety temperature monitor (STM) Range 0 to +30 °C: +0 K –12 K 5343-1 0 to +60 °C +85 °C Range +30 to +60 °C: +0 K –5 K Range...
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Page 7: Mounting Accessories
Design and principle of operation Mounting accessories Thermowells The thermostat is supplied without a thermowell. The following thermowells are available for single and double thermostats as accessories: Thermowells for single thermostat Max. pressure at 150 °C Order no. Nickel-plated brass · CuZn (2.0401) 100 x 8 mm 48 bar 1400-9844... -
Page 8: Installation
Installation Installation Table 1 · Properties of the measuring fluid Dangerous reaction NOTICE! Ignition temperature +375 °C On installing the thermostat, follow the in- Water pollution Class 1 structions described below to prevent dam- Slightly contaminating age to the thermostat and to ensure it can Toxicological specifications function properly: Irritant... -
Page 9: Contact Thermostat
Installation Contact thermostat Thermowell You can attach single thermostats to pipes Note: The bulbs of double thermostats share with diameters between 15 and 100 mm. A the same thermowell. See section 2.3. strap is required in this case (see section 2.3 on accessories). -
Page 10: Wall Mounting With Thermowell In A Different Location
Installation 3.3.1 Wall mounting with thermo- 3.3.2 Mounting on tanks or in well in a different location pipes The thermostats are fastened to the wall The thermostats are attached to the using two screws (not included in the scope thermowells which are screwed into place. of delivery). - Page 11 Installation Fig. 4a · Uncoiling the capillary Fig. 4b · Wall mounting with the thermowell in a Fig. 4c · Mounting on tanks or in pipes different location 1 Thermostat 2 Bulb 3 Capillary 6 Seal 7 Thermowell 7a Clip 7b Small metal plate 7c Screw Fig.
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Page 12: Electrical Connection
Electrical connection Electrical connection Flexible wire ends without ferrules: Use a slotted screwdriver to keep the spring open (in ) and place the wire ends DANGER! into the terminal point ( ) as far they Risk of electric shock! will go. –... -
Page 13: Operation
Operation Operation Safety temperature monitor (STM) Temperature regulator (TR) Open the thermostat housing and adjust the Adjust the set point at the set point adjuster set point using a screwdriver. (4). Safety temperature Limiting the set point range limiter (STL) The lower range value and upper range Open the thermostat housing and adjust the value of the set point range can be limited. -
Page 14: Lead Sealing
Lead sealing Lead sealing NOTICE Only lead-seal in the gray-colored area, otherwise the thermostat cannot function properly. Note: You have to drill the holes for the lead sealing. The lead seal is not included in the scope of delivery. Dimensions in mm Single thermostats Dimensions with thermowell (accessories) Type 5343 Safety Temperature Monitor (STM) - Page 15 Dimensions in mm Dimensions with thermowell (accessories) Type 5344 Temperature Regulator (TR) 42.4 ˚C G1/2 Ø8 Dimensions with thermowell (accessories) Type 5345 Safety Temperature Limiter (STL) 42.4 G1/2 Ø8 Metal plate and screw for fastening the thermostat onto the thermowell (wall mounting) EB 5206 EN...
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Page 16: Double Thermostat Tr/Stl Type
Dimensions in mm Double thermostats Dimensions with thermowell (accessories) Type 5347 Double Thermostat TR/STL G1/2 Ø15 Dimensions with thermowell (accessories) Type 5348 Double Thermostat TR/STM G1/2 Ø15 EB 5206 EN... - Page 17 Dimensions in mm Dimensions with thermowell (accessories) Type 5349 Double Thermostat STM/STL G1/2 Ø15 Metal plate and screw for fastening the thermostat onto the thermowell (wall mounting) EB 5206 EN...
- Page 18 EB 5206 EN...
- Page 19 EB 5206 EN...
- Page 20 SAMSON AG · MESS- UND REGELTECHNIK Weismüllerstraße 3 · 60314 Frankfurt am Main · Germany Phone: +49 69 4009-0 · Fax: +49 69 4009-1507 EB 5206 EN Internet: http://www.samson.de...
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