GHM-Martens STL50 Operating Manual Download

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Operating manual

Safety temperature

limiter

STL50

Approved in accordance with:

DIN EN 14597 (replacing DIN 3440)

SIL 2

Save for later reference.

English

Company / brands of GHM

www.ghm-messtechnik.de

Summary of Contents for STL50

Page 1: ...Operating manual Safety temperature limiter STL50 Approved in accordance with DIN EN 14597 replacing DIN 3440 SIL 2 Save for later reference English Company brands of GHM www ghm messtechnik de ...

Page 2: ... Scope of delivery 5 2 2 Features 5 2 3 Brief information 6 2 4 Dimensions 6 2 5 Connection diagrams 7 2 6 Electrical installation 8 3 Controls and functional description 9 3 1 Operating and display elements 9 3 2 Operation 9 3 3 Operating level 11 3 4 Configuration level 12 3 5 Error messages 17 3 6 Functional safety 19 3 7 Functional test 20 3 8 Approved temperature probes 21 4 Technical data 22...

Page 3: ... instructions use This operating manual must be kept in a location such that qualified personnel can refer to it at all times Any processes described in this operating manual may only be carried out by trained qualified personnel who are authorised by the owner and wearing protec tive clothing All rights reserved 1 1 Safety signs and symbols Warning notices are identified in this document as descr...

Page 4: ...e However deviations cannot be entirely ruled out Therefore we cannot assume any guarantee for complete conformity The specifications in this document are checked regularly and any necessary corrections are incorpo rated into subsequent versions This document is subject to technical changes In addition all claims are based on the valid Standard Terms for the Supply of Prod ucts and Services of the...

Page 5: ...ting of the display illuminate and the cause of error is shown on the display in plain text A 24 V DC signal for an external alarm is also connected to terminals 17 18 2 1 Scope of delivery Safety temperature limiter STL50 with packaging This operating manual 2 2 Features Can be used as STB Safety temperature limiter ASTB Exhaust gas safety temperature limiter STW Safety temperature monitor Certif...

Page 6: ...button on the front side or an externally connected button ASTB like before but with exhaust temperature monitoring STW Maximum or minimum monitoring without catch Automatic reset after return to the permissible range Switching hysteresis always acts towards a safe range Error buffer The last error is stored as plain text and can be viewed and deleted on the working level Temperature probe With us...

Page 7: ...7 2 5 Connection diagrams STL50 1 1R X 00 STL50 5 1R X 00 STL50 1 2RAO X 00 STL50 5 2RAO X 00 ...

Page 8: ... installation of electrical and elec tronic systems applicable in the respective country of use is mandatory Pt100 input The resistance of 4 Ω per line must not be exceeded The corresponding line length for copper cable is specified in the table The values must be calculated for other line materials and cross sections Maximum line length for copper lines Line cross section Maximum line length 0 14...

Page 9: ...s operated on 2 levels The desired parameter is opened with the button Selection within a parameter or adjustment of a value takes place with the and buttons Button combinations press buttons simultaneously 1 parameter back parameter is set to 0 or minimum value 19 2 C Pt100 Limit value 20 0 C STB max ...

Page 10: ...o the operating level after this message or if no password is entered After an incorrect password has been entered three times the device enters a safety timeout for 60 minutes The progress of this safety timeout is shown in the display The safety area is accessible with entry of the correct pass word Settings can be made here which must be protected from unauthorised change After the last menu it...

Page 11: ...ak value display max 28 3 C Reset with Peak value display Reset with max 28 4 C TC2 TC1 min 28 4 C max 28 4 C max 28 4 C No error Error log memory Reset with Error log memory display Deletion of error messages with the button Switching of the representation for the actual value display to individual measurements The value that is closer to the value for STM max or STB min is always displayed Peak ...

Page 12: ...rameter only appears with appropriate device version 3 4 Configuration level Display Description entered values are factory settings 19 2 C Pt100 Limit value 20 0 C STB max Language english deutsch Display F C Unit Display 65 Contrast Actuate for 2s Working level Language of user guidance deutsch english française Unit of measure of the display C F Contrast of the display Change of the value withi...

Page 13: ...eout for 60 minutes With the setting 0000 and active password protection a jump to the working level takes place Change the password Change the value within the range 0000 9999 Attention Write down the password Resetting to 0010 can only take place in the factory Input Type J Double thermocouple Fe CuNi Type K Double thermocouple NiCr Ni Type N Double thermocouple NiCrSi NiSi Type S Double thermoc...

Page 14: ...max Safety max STW min temperature monitor min Description max Relay is deactivated when the adjusted limit value is exceeded min Relay is deactivated when the adjusted limit value is undercut Limit value switching point alarm output Change of the value in the corresponding measuring range Alarm output hysteresis Change of the value in the range 1 C 0 1 C 100 C 100 0 C Measurement difference of th...

Page 15: ...nding measuring range Function of the analog output OFF Analog output is switched off 0 20 Analog output 0 20mA and or 0 10V 4 20 Analog output 4 20mA and or 2 10V 0 20 22 Analog output 0 20mA and or 0 10V in case of error 22mA 11V 4 20 22 Analog output 4 20mA and or 2 10V in case of error 22mA 11V 3 6 4 20 Analog output 4 20mA and or 2 10V in case of error 3 6mA 1 8V Start value of the analog out...

Page 16: ...Configuration level 19 2 C Pt100 Limit value 20 0 C STB max Background lighting of the display AUTO Lighting only goes out after only 2 min if a button is not pressed In case of an error and if the relay is switches off the lighting switches on and remains active ON The lighting is permanently active Front side function reset button OFF Button disabled ON Button active Parameter lock for the confi...

Page 17: ...annot be changed because the parameter lock is activated for the configuration level An incorrect password was entered for the security area The dis play returns to password entry after 3 seconds After an incorrect password has been entered three times the device enters a safety timeout for 60 minutes A cable interruption is detected at the connection terminals to the thermocouples Check connectio...

Page 18: ...tect at the terminals of the Pt100 Check connection lines and Pt100 probes The measurement exceeds the maximum temperature for Pt100 probes The measurement undercuts the minimum temperature for Pt100 probes The internal temperature of the device has detected an impermissi bly high or low value Check the installation conditions and envi ronmental temperature of the device Monitoring of the program ...

Page 19: ...to use simple thermocouples and connect the inputs in parallel with jumpers If separate probe fittings are used they must be installed next to each other so that they both detect the same temperature In case of faults and errors If a fault occurs in the system the cause must be rectified immediately If the STL50 safety temperature limiter is decommissioned for this purpose the process must be safe...

Page 20: ...age of 24 V DC is connected to the appropriate terminals for an external alarm After the simulator changes the temperature back to the good range the STL50 functions correctly if the relay is reactivated in safety temperature limiter operating mode the relay is not activated until the front RESET button or an external RESET button having been pressed then the display shows the normal operating dat...

Page 21: ...ture probe TR293 TR296 Thermocouple Safety temperature probe TC293 TC293 T R C 293 NL M20x1 5 Nominal length Clamping gland moveable AF27 85 G 1 2B Ø9mm Ø3mm 40 11 EL M20x1 5 Extension tube Installation length AF27 85 G 1 2B Ø9mm Ø6mm 11 50 140 40 T R C 296 ...

Page 22: ...ectronic safety related systems Input Pt100 in the range 100 0 600 0 C or 100 600 C 3 wire connection maximum resistance 4 Ω per wire Probe current 1 mA no independent heating Thermocouple Type J Fe CuNi range 100 0 800 0 C or 100 800 C Type K NiCr Ni range 150 1200 C Type N NiCrSi NiSi range 150 1200 C Type S Pt10Rh Pt range 0 1600 C Integrated comparison point compensation Basic accuracy 0 5 2 d...

Page 23: ...600 C 5 Thermocouples J Fe CuNi 100 0 800 0 C 100 800 C K NiCr Ni 150 1200 C N NiCrSi NiSi 150 1200 C S Pt10Rh Pt 0 1600 C 2 1R 1 Alarm output relay 2RAO 2 relay outputs analog output 3 0 230 V AC 10 50 60 Hz 1 115 V AC 10 50 60 Hz 4 24 V AC 15 50 60 Hz 5 24 V DC 15 4 00 No options ...

Page 24: ...vice has been cleaned and packaging which prevents damage to the device is used and 3 a safety data sheet for the measuring medium is affixed to the outside of the package if the device has come into contact with a critical substance 7 Disposal Separation by material and recycling of device components and packag ing must take place when the device is disposed of The valid legal regu lations and di...

Page 25: ...25 9 Declaration of Conformity ...

Page 26: ...rd 0010 Input Decimal place One Sensor correction 0 0 C Operating mode STBmax Limit value Alarm output 20 C Hysteresis Alarm output 2 C Max Temperature difference of the thermocouples 40 C Pre alarm function OFF Pre alarm value 20 C Pre alarm hysteresis 2 C Analog output function OFF Analog output start value 0 C Analog output end value 100 C Backlight Display AUTO Function reset button front side...

Page 27: ...27 ...

Page 28: ...GHM Group Martens GHM Messtechnik GmbH Kiebitzhörn 18 22885 Barsbüttel Germany Phone 49 40 670 73 0 info ghm group de www ghm group de 28 V2 51 15 03 2018 ...

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