S S REGELTECHNIK FSTF Room Temperature Sensors In Wall Panel Switch Instruction Manual

: June 12, 2024
: S S REGELTECHNIK

S S REGELTECHNIK FSTF Room Temperature Sensors In Wall Panel Switch

Product Information

The product is a room temperature sensor that is designed to be installed in- wall as part of a panel switch program. It is compatible with the GIRA System 55 Standard switch program, but can also work with other switch manufacturers and programs upon request. The sensor has various measuring ranges and outputs, as well as different options for potentiometers, switches, and buttons. It is classified as Schutzklasse III (according to EN 60 730) and has an IP 20 protection rating (according to EN 60 529).

Technical Specifications

Measuring ranges: See table
Sensor/output: Assembled on board, passive
Range suppression: In the button
Testing current: See page 8
Potentiometer: Standard 1k, max. 0.1 W (Other values available upon request)
Drehschalter: Max. 24 V AC/DC, max. 130 mA, up to 5 switching stages (0, Auto, I, II, III)
Wippschalter: Max. 24 V AC/DC, max. 130 mA
Taster: LED: Max. 24 V DC (Optional max. 24 V AC)
Montage: Schutzklasse III (according to EN 60 730)
Schutzart: IP 20 (according to EN 60 529)

Product Usage Instructions

Choose the appropriate measuring range for your application based on the table provided in the manual.
Install the room temperature sensor in-wall according to the mounting instructions provided by the switch program manufacturer.
Connect the sensor/output to the designated points on the circuit board.
Adjust the potentiometer to the desired value, taking into consideration the maximum power rating.
If using a Drehschalter or Wippschalter, ensure that the maximum voltage and current ratings are not exceeded.
If using a Taster with LED, make sure to use the appropriate voltage (DC or AC).
Ensure that the device is properly grounded and connected to a power source according to the regulations in your region.
Refer to the general information and important notes sections in the manual for additional guidance and safety precautions.

Dimensional drawing

S-S-REGELTECHNIK-FSTF-Room-Temperature-Sensors-In-Wall-Panel-Switch-
FIG-2

A room temperature sensor THERMASGARD® FSTF is used for air temperature measurement or setpoint adjustment, for presence detection or as room control and operating panel with temperature sensor, push-buttons, potentiometers, status indicators (LEDs). The in-wall sensor is mounted in high-quality panel switch programmes, ideally of the brands Gira, Berker, Merten, Jung, Siemens or Busch-Jaeger (using in-wall adapters) either individually or in combination with light switches, socket outlets, etc.It is used in non-aggressive, dust- free environments, in refrigeration, air conditioning and clean room technology, and in interior rooms, such as living rooms, offices, hotels, etc.

TECHNICAL DATA

S-S-REGELTECHNIK-FSTF-Room-Temperature-Sensors-In-Wall-Panel-Switch-
FIG-25

WIRE CONNECTION

S-S-REGELTECHNIK-FSTF-Room-Temperature-Sensors-In-Wall-Panel-Switch-
FIG-5

THERMASGARD® FSTF 1

Standard version with sensor

Connecting diagram

THERMASGARD® FSTF 1 Room temperature sensors

THERM ASGARD ® FSTF 1| Room temperature sensors|
---|---|---
Type ⁄ WG01| Sensor ⁄ Output| Item No.
FSTF1| passive| IP 20 (–30…+60 °C)
FS T F1 P t100| Pt100 (according to DIN EN 60 751, class B)| 1101-5020-1000-162
FS T F1 P t1000| Pt1000 (according to DIN EN 60 751, class B)| 1101-5020-5000-162
FS T F1 Ni1000| Ni1000 (according to DIN EN 43 760, class B, TCR = 6180 ppm ⁄ K)| 1101-5020-9000-162
FS TF1 Ni TK| Ni1000 TK5000 (TCR = 5000 ppm ⁄ K), LG – Ni1000| 1101-5021-0000-162
FS T F1 LM 235 Z| LM235Z (TCR = 10 mV ⁄ K; 2.73 V at O °C), KP10| 1101-5022-1000-162
FST F1 NT C 1,8 K| NTC 1.8 K| 1101-5021-2000-162
FST F1 NT C 10 K| NTC 10K| 1101-5021-5000-162
FST F1 NT C 20 K| NTC 20K| 1101-5021-6000-162

THERMASGARD® FSTF xx LT

Version with sensor, LED (green), and push-button (max. 24 V DC, max. 10 mA)

Connecting diagram

THERMASGARD® FSTF xx LT Room temperature sensors

Type ⁄ WG01	Sensor ⁄ Output	Item No.
FSTF xx LT	passive	IP 20 (–30…+60 °C)
FS T F P t100 L T	Pt100 (according to DIN EN 60 751, class B)

THERMASGARD® FSTF xx L D2

Version with sensor, LED (green), and turn switch (2-step) (max. 24 V AC ⁄ DC, max. 130 mA)

Connecting diagram

THERMASGARD® FSTF xx LD2 Room temperature sensors

Type ⁄ WG01	Sensor ⁄ Output	Item No.
FSTF xx LD2	passive	IP 20 (–30…+60 °C)
FS T F P t100 D 2 L	Pt100 (according to DIN EN 60 751, class B)

THERMASGARD® FSTF xx L D4

Version with sensor, LED (green) and turn switch (4-step) (max. 24 V AC ⁄ DC, max. 130 mA)

Connecting diagram

THERMASGARD® FSTF xx LD4 Room temperature sensors

Type ⁄ WG01	Sensor ⁄ Output	Item No.
FSTF xx LD4	passive	IP 20 (–30…+60 °C)
FS T F P t100 D 4 L	Pt100 (according to DIN EN 60 751, class B)

THERMASGARD® FSTF xx P

Version with sensor and potentiometer (1 kOhm, max. 0.1 W)

Connecting diagram

THERMASGARD® FSTF xx P Room temperature sensors

Type ⁄ WG01	Sensor ⁄ Output	Item No.
FSTF xx P	passive	IP 20 (–30…+60 °C)
FS T F P t100 P	Pt100 (according to DIN EN 60 751, class B)

THERMASGARD® FSTF xx PLW

Version with sensor, potentiometer (1 kOhm, max. 0.1 W), LED (green), and rocker switch (max. 24 V AC ⁄ DC, max. 130 mA)

Connecting diagram

THERMASGARD® FSTF xx PLW Room temperature sensors

Type ⁄ WG01	Sensor ⁄ Output	Item No.
FSTF xx PLW	passive	IP 20 (–30…+60 °C)
FS T F P t100 P L W	Pt100 (according to DIN EN 60 751, class B)

THERMASGARD® FSTF xx PLT

Version with sensor, potentiometer (1 kOhm, max. 0.1 W), LED (green), and push-button (max. 24 V DC, max. 10 mA)

Connecting diagram

THERMASGARD® FSTF xx PLT Room temperature sensors

Type ⁄ WG01	Sensor ⁄ Output	Item No.
FSTF xx PLT	passive	IP 20 (–30…+60 °C)
FS T F P t100 P L T	Pt100 (according to DIN EN 60 751, class B)

THERMASGARD® FSTF xx PD4

Version with sensor, potentiometer (1 kOhm, max. 0.1 W) and turn switch (max. 24 V AC ⁄ DC, max. 130 mA)

Connecting diagram

THERMASGARD® FSTF xx PD4 Room temperature sensors

Type ⁄ WG01	Sensor ⁄ Output	Item No.
FSTF xx PD4	passive	IP 20 (–30…+60 °C)
FS T F P t100 P D 4	Pt100 (according to DIN EN 60 751, class B)

THERMASGARD® FSTF xx P 2L 2T

Version with sensor, potentiometer (1 kOhm, max. 0.1 W), 2 LEDs (green, red), and 2 push-buttons (max. 24 V DC, max. 10 mA)

Connecting diagram

THERMASGARD® FSTF xx P 2L 2T Room temperature sensors

Type ⁄ WG01	Sensor ⁄ Output	Item No.
FSTF xx P 2L 2T	passive	IP 20 (–30…+60 °C)
FS T F P t100 P 2 L 2 T	Pt100 (according to DIN EN 60 751, class B)

General notes

Measuring principle of HVAC temperature sensors in general:
The measuring principle of temperature sensors is based on an internal sensor that outputs a temperature-dependent resistance signal. The type of the internal sensor determines the output signal. The following active ⁄ passive temperature sensors are distinguished:

Pt 100 measuring resistor (according to DIN EN 60 751)
Pt 1000 measuring resistor (according to DIN EN 60751)
Ni 1000 measuring resistor (according to DIN EN 43 760, TCR = 6180 ppm ⁄ K)
Ni 1000_TK 5000 measuring resistor (TCR = 5000 ppm ⁄ K)
LM235Z, semiconductor IC (10 mV ⁄ K, 2.73 V ⁄ °C). Ensure correct polarity + ⁄– when connecting!
NTC (according to DIN 44070)
PTC
KTY silicon temperature sensors
The most important resistance characteristics are shown on the last page of these operating instructions. According to their characteristics, i ndividual temperature sensors exhibit different slopes in the range between 0 °C and +100 °C (TK value). Maximum-possible measuring ranges also vary from sensor to sensor (for some examples to this see under technical data).

Resistance characteristics of passive temperature sensors

In order to avoid damages ⁄ errors, preferably shielded cables are to be used.
Laying measuring cables parallel with current-carrying cables must in any case be avoided. EMC directives shall be observed! These instruments must be installed by authorised specialists only!

Limiting deviation according to classes:
Tolerances at 0 °C:

Platinum sensors (Pt100, Pt1000):

DIN EN 60751, class B : ± 0.3 K
1 ⁄ 3 DIN EN 60751, class B: ± 0.1 K

Nickel sensors:

NI1000 DIN EN 43760, class B: ± 0.4 K
NI1000 1 ⁄ 2 DIN EN 43760, class B: ± 0.2 K
NI1000 TK5000: ± 0.4 K
ATTENTION, NOTE !
Testing current influences the thermometer‘s measuring accuracy due to intrinsic heating and therefore, should never be greater than as specified below:

Standard values for testing current:

Sensor current, maximum: I max.
Pt1000 (thin-layer): < 0,6 mA
Pt100 (thin-layer): < 1,0 mA
Ni1000 (DIN), Ni1000 TK5000 : < 0,3 mA
NTC xx : < 2 mW
LM235Z: 400 μ A … 5 mA
KTY 81 – 210 : < 2 mA

General notes

Our “General Terms and Conditions for Business“ together with the “General Conditions for the Supply of Products and Services of the Electrical and
Electronics Industry“ (ZVEI conditions) including supplementary clause “Extended Retention of Title“ apply as the exclusive terms and conditions.
In addition, the following points are to be observed:
- These instructions must be read before installation and putting in operation and all notes provided therein are to be regarded!
- In order to prevent measuring errors, ensure during installation on an in-wall flush box that the end of the installation pipe is sealed against draught.
- Devices must only be connected to safety extra-low voltage and under dead-voltage condition. To avoid damages and errors at the device (e.g. by voltage induction) shielded cables are to be used, laying parallel with current-carrying lines is to be avoided, and EMC directives are to be observed.
- This device shall only be used for its intended purpose. Respective safety regulations issued by the VDE, the states, their control authorities, the TÜV and the local energy supply company must be observed. The purchaser has to adhere to the building and safety regulations and has to prevent perils of any kind.
- No warranties or liabilities will be assumed for defects and damages arising from improper use of this device.
- Consequential damages caused by a fault in this device are excluded from warranty or liability.
- These devices must be installed and commissioned by authorised specialists.
- The technical data and connecting conditions of the mounting and operating instructions delivered together with the device are exclusively valid. Deviations from the catalogue representation are not explicitly mentioned and are possible in terms of technical progress and continuous improvement of our products.
- In case of any modifications made by the user, all warranty claims are forfeited.
- This device must not be installed close to heat sources (e.g. radiators) or be exposed to their heat flow. Direct sun irradiation or heat irradiation by similar sources (powerful lamps, halogen spotlights) must absolutely be avoided.
- Operating this device close to other devices that do not comply with EMC directives may influence functionality.
- This device must not be used for monitoring applications, which serve the purpose of protecting persons against hazards or injury, or as an EMERGENCY STOP switch for systems or machinery, or for any other similar safety-relevant purposes.
- Dimensions of enclosures or housing accessories may show slight tolerances on the specifications provided in these instructions.
- Modifications of these records are not permitted.
- In case of a complaint, only complete devices returned in original packing will be accepted.

Notes on commissioning:
This device was calibrated, adjusted and tested under standardised conditions. When operating under deviating conditions, we recommend performing an initial manual adjustment on-site during commissioning and subsequently at regular intervals.

Commissioning is mandatory and may only be performed by qualified personnel!
These instructions must be read before installation and commissioning and all notes provided therein are to be regarded

Caution
You must ensure that the potentiometer is connected up correctly. Polarity reversal can cause a short circuit.
Depending on the switching program, there are two quick release axles enclosed with the potentiometer to compensate different installation heights of the covers. This ensures that the min. and max. stop of the set point adjustment function properly.

S-S-REGELTECHNIK-FSTF-Room-Temperature-Sensors-In-Wall-Panel-Switch-
FIG-24

An overview of various versions

Resistance characteristics of passive temperature sensors

S-S-REGELTECHNIK-FSTF-Room-Temperature-Sensors-In-Wall-Panel-Switch-
FIG-26

Resistance characteristics of passive temperature sensors

° C

| PT 100

Ω

| PT 1000

Ω

| Ni 1000

Ω

| Ni 1000

TK 5000

Ω

| FeT (T1)

Ω

| KTY 81-210

Ω

| LM235Z (KP10)

mV

|

° C

---|---|---|---|---|---|---|---|---
– 50| 80.3| 803| 743| 790.8| –| 1030| –| – 50
– 40| 84.3| 843| 791| 826.8| –| 1135| 2330| – 40
– 30| 88.2| 882| 842| 871.7| 1935| 1247| 2430| – 30
– 20| 92.2| 922| 893| 913.4| 2031| 1367| 2530| – 20
– 10| 96.1| 961| 946| 956.2| 2128| 1495| 2630| – 10
0| 100.0| 1000| 1000| 1000.0| 2227| 1630| 2730| 0
+ 10| 103.9| 1039| 1056| 1044.8| 2328| 1772| 2830| + 10
+ 20| 107.8| 1078| 1112| 1090.7| 2429| 1922| 2930| + 20
+ 30| 111.7| 1117| 1171| 1137.6| 2534| 2080| 3030| + 30
+ 40| 115.5| 1155| 1230| 1185.7| 2639| 2245| 3130| + 40
+ 50| 119.4| 1194| 1291| 1235.0| 2746| 2417| 3230| + 50
+ 60| 123.2| 1232| 1353| 1285.4| 2856| 2597| 3330| + 60
+ 70| 127.1| 1271| 1417| 1337.1| 2967| 2785| 3430| + 70
+ 80| 130.9| 1309| 1483| 1390.1| 3079| 2980| 3530| + 80
+ 90| 134.7| 1347| 1549| 1444.4| 3195| 3182| 3630| + 90
+ 100| 138.5| 1385| 1618| 1500.0| 3312| 3392| 3730| + 100
+ 110| 142.3| 1423| 1688| 1557.0| 3431| 3607| 3830| + 110
+ 120| 146.1| 1461| 1760| 1625.4| 3552| 3817| 3930| + 120
+ 130| 149.8| 1498| 1833| –| 3676| 4008| –| + 130
+ 140| 153.6| 1536| 1909| –| 3802| 4166| –| + 140
+ 150| 157.3| 1573| 1987| –| 3929| 4280| –| + 150
| NTC| NTC| NTC| NTC| NTC| NTC| NTC| NTC|
---|---|---|---|---|---|---|---|---|---
1.8 kOhm| 2.2 kOhm| 3 kOhm| 5 kOhm| 10 kOhm| 10 kPRE| 20 kOhm| 50 kOhm
° C| Ω| Ω| Ω| Ω| Ω| Ω| Ω| Ω| ° C
– 50| –| –| –| –| –| –| –| –| – 50
– 40| 39073| –| –| –| –| –| 806800| 2017000| – 40
– 30| 22301| 27886| 53093| 88488| 175785| 135200| 413400| 1033500| – 30
– 20| 13196| 16502| 29125| 48541| 96597| 78910| 220600| 551500| – 20
– 10| 8069| 10070| 16599| 27664| 55142| 47540| 122260| 305650| – 10
0| 5085| 6452| 9795| 16325| 32590| 29490| 70140| 175350| 0
+ 10| 3294| 4138| 5971| 9951| 19880| 18790| 41540| 103850| + 10
+ 20| 2189| 2719| 3747| 6246| 12491| 12270| 25340| 63350| + 20
+ 30| 1489| 1812| 2417| 4028| 8058| 8196| 15886| 39715| + 30
+ 40| 1034| 1248| 1597| 2662| 5329| 5594| 10212| 25530| + 40
+ 50| 733| 876| 1081| 1801| 3605| 3893| 6718| 16795| + 50
+ 60| 529| 626| 746| 1244| 2489| 2760| 4518| 11295| + 60
+ 70| 389| 454| 526| 876| 1753| 1900| 3098| 7745| + 70
+ 80| 290| 335| 346| 627| 1256| 1457| 2166| 5415| + 80
+ 90| 220| 251| 275| 458| 915| 1084| 1541| 3852| + 90
+ 100| 169| 190| 204| 339| 678| 817| 1114| 2785| + 100
+ 110| 131| 146| 138| 255| 509| 624| 818| 2045| + 110
+ 120| 103| –| 105| 195| 389| 482| 609| 1523| + 120
+ 130| –| –| 81| 151| 300| 377| 460| 1149| + 130
+ 140| –| –| 64| 118| 234| 298| 351| 878| + 140
+ 150| –| –| 50| 93| 185| 238| 272| 679| + 150