GHM-Martens STL4896, Operating Manual

Page 1: ...Operating manual Safety temperature limiter STL4896 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: ...2 2 Features 5 2 3 Brief information 6 2 4 Dimensions 7 2 5 Configuration of terminal strips 8 2 6 Connection diagrams 8 2 7 Electrical installation 9 3 Controls and functional description 10 3 1 Operating and display elements 10 3 2 Operation 10 3 3 Operating level 12 3 4 Configuration level 13 3 5 Error messages 18 3 6 Functional safety 20 3 7 Functional test 21 3 8 Approved temperature probes 2...

Page 3: ...nstructions 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 protective clothing All rights reserved 1 1 Safety signs and symbols Warning notices are identified in this document as describe...

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 incorporated 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 Products and Services of the E...

Page 5: ...g 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 11 10 2 1 Scope of delivery Safety temperature limiter STL4896 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 Certifi...

Page 6: ...ter fault elimination by pressing the 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 w...

Page 7: ...7 2 4 Dimensions Panel aperture in accordance with DIN IEC 61554 92mm 0 8mm 0 0mm 45mm 0 6mm 0 0mm ...

Page 8: ... 24 22 23 21 20 19 18 16 17 13 14 11 12 9 10 250V AC 500VA 30V DC 60W 2A Pre Alarmrelay 2A resistive load Internal time lag fuse 2A 250V AC 200VA 250V DC 80W 2A Mainrelay 2A cos 0 7 Ext alarm 24V Analog output 0 4 20mA Ext reset max 20mA Supply voltage 3 1 2 4 Alarm Out 1 25 15 24 22 23 21 20 19 18 16 17 13 14 11 12 9 10 TC2 TC1 7 8 5 6 250V AC 500VA 30V DC 60W 2A Pre Alarmrelay 2A resistive load ...

Page 9: ...e 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 mm 32 m 0 25 mm 58 m 0 5 mm 116 m 0 75 mm 174 m 1 mm 232 m 1 5 mm 3...

Page 10: ...and functional description 3 1 Operating and display elements 3 2 Operation The device is 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 ...

Page 11: ...ed 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 password Settings can be made here which must be protected from unauthorised change After the last menu item or if no button is pressed for more than 2 minutes the devices sw...

Page 12: ...value 20 0 C 19 2 C Type J Limit value 20 0 C STB max 28 4 C min Peak 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 c...

Page 13: ...on 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 within the range 5 100 ...

Page 14: ...assword has been entered three times the device enters a safety timeout 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 N...

Page 15: ... 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 thermocouples Change of the value in the range 1 C 1 0 C 5 of final va...

Page 16: ...ing point of the pre alarm relay Change of the value in the corresponding 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 an...

Page 17: ...nd 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 configuration level OFF No parameter lock ON Parameter locked Return to t...

Page 18: ...e that is required for the device to function safely The parameter cannot 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 detec...

Page 19: ... 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 and or working memory revealed an er ror The device must be inspect...

Page 20: ...ysically possible for double thermocouples It is not permissible 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 STL4896 safety temperature ...

Page 21: ...l alarm After the simulator changes the temperature back to the good range the STL4896 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 data the LED alarm on the front of the STL4896 goes out and voltage is n...

Page 22: ...hm group de 22 3 8 Approved temperature probes Pt100 Safety temperature probe TR293 TR296 Thermocouple Safety temperature probe TC293 TC296 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 23: ...00 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 digits Temperature coefficient 0 01 K Display Graphic LCD w...

Page 24: ... 4 1 Ordering code 1 2 3 4 STL4896 1 1 Pt100 3 wire connection 100 0 600 0 C 100 600 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 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 25: ...vice 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 packaging must take place when the device is disposed of The valid legal regulations and directives applicable at the time must be observed The device may not b...

Page 26: ...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 26 9 Declaration of Conformity ...

Page 27: ...ode 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 ON Parameter lock for configuration level OFF ...

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 ...