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
4
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
4
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.
4
-
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:
NO contact:
NC contact:
Signal 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
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
8 K
8 K
8 K
3 K
10 K
3 K
8 K
3 K
8 K
8 K
8 K
Range
Range
Range
Range
Range
Range
Range
Range
Range
Range
Range
Range
Range
Range
Range
Range
Range
Range
Range
Range
Range
Range
Range
Range
Range
Range
Range
Range
0 to +30 °C:
+30 to +60 °C:
+40 to +70 °C:
+70 to +100 °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
+0 K
+0 K
+0 K
+0 K
+0 K
+0 K
+6 K
+3 K
+6 K
+3 K
+0 K
+0 K
+0 K
+0 K
+6 K
+3 K
+0 K
+0 K
+6 K
+3 K
+0 K
+0 K
+0 K
+0 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
–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
–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
+145 °C
+145 °C
6 EB 5206 EN
Loading...