PAnEL MoUnTED METER TYPE n21 USER`S MAnUAL
Contents
1. 6 1 USB Interface list of parameters The USB interface is intended only for the configuration of the meter identifier 213 0xD5 meter address 1 baud rate 9 6 kbit s operating mode Modbus RTU transmission mode 8N2 maximum response time 100 ms implemented functions 03 readout of registers 04 readout of input registers 06 one register writing 16 registers writing 17 device identification Broadcast address 253 6 2 Map of N21 meter registers In the N21 meter data are placed in 16 and 32 bit registers Process variables and meter parameters are placed in the address area of registers in a way depended on the variable value type Bits in 16 bit registers are numbered from the least significant to the most signifi cant bit b0 b15 The 32 bit registers contain float numbers compliant with IEEE 754 standard Range of the registers is shown in Table 2 The 16 bit registers are shown in Table 3 The 32 bit registers with their equivalent registers 2x16 bits are shown in Table 4 The register addresses shown in the tables are their physical addresses 21 Table 2 Address sa range Value type Description 4000 4020 Integer Meter configuration Value set in the 16 bit 16 bits register 4500 4526 Integer User defined graphical icon representing 16 bits the unit of the measuring value 6000 6018 Float Value is set in the two following 16 bit2. to the standard quantities The conversion is done by an approximation of a straight line passing through the characteristic parameters points Fig 11 value displayed NG measuring value Figure 11 Individual characteristic Example Pressure transducer with a range of 0 500 Pa and 0 10 V voltage output is connected to the input voltage range of 10 V Set the individual characteristic as follows X1 0 lower value of the measuring range of the N21 meter X2 10 upper value of the measuring range of the N21 meter X1 0 lower value of the measuring range of the pressure transducer X2 500 upper value of the measuring range of the pressure transducer After enabling the individual characteristic the meter indicates directly the value in Pa 19 5 3 4 Preview of the measuring values Measured values x Stop refresh float precision 2 Parameter Value Displayed value 266 6 Figure 12 Measured value 266 6 Preview CJC temperature 29 95 CJC temperature with correction 14 169999999999998 of the Value of the AC transducer 29571 measuring Average value of the transducer 29571 A values 5 3 5 Editor of the measuring value unit Defining units x inversion B xX ld v Selection clearing ofthe the editing pre defined area units gt Figure 13 Editor of the measuring Unit from conf Close value unit Save to reg Save to conf Unit from reg 20 6 CONFIGURATION INTERFACE
3. Choice of precision 0 of the 0 0 3 of the displayed 0 0 displayed values 0 00 values 0 000 0 5 s 1s Averaging Averaging time 3s time of the measurement 5s 0 5 s results 10s 15s 20s Automatic temperature A compensation of the Ss thermocouple cold None On compensation a a On junctions or a line resistance for Pt100 sensor It is possible to set a temperature value which will be corrected by the measurement Manual result if an automatic 20 00 60 00 C 0 00 compensation temperature compensation of the thermocouple cold junction or a line resistance is disabled 15 Enabling the value of the input signal Without individual Without Enabling GONVSISION characteristic individual individual to the displayed value characteristic according to the linear R characte papa Characteristic enabled ristic characteristic of user defined coefficients Individual seres Mt characteristic POIt of the individual 1000 1000 od characteristic Y1 0 X1 Y1 Fi igure 11 Individual User defined second 1000 1000 X2 1 characteristic point of the individual Y2 1 X2 Y2 characteristic Figure 11 Measuring Preview of the current Figure 12 values measuring values Output Configuration tab The method of triggering the alarm output depending on the input signal H OFF Relay output alarm thresholds H ON operating The H OFF mode N OFF H OFF mode disables th
4. code N21 00E0 means N21 N21 meter 00 standard version E English version 0 without extra quality requirements 34 35 LUMEL LUMEL S A ul S ubicka 1 65 127 Zielona G ra Poland Tel 48 68 45 75 100 exchange Fax 48 68 45 75 508 http www lumel com pl N21 09 Export Department Tel 48 68 45 75 302 or 304 Fax 48 68 325 40 91 e mail exportQlumel com pl
5. input 60 mV 60 mV lt 100 Q voltage input 10 V 10 V lt 100 Q thermocouples lt 100 Q Preheating time 30 minutes Basic error lt 0 1 of the range 1 digit 30 Additional errors in rated operating conditions compensation of cold junction temperature changes lt 1 C compensation of wire resistance changes e when changing wire resistance lt 10 Q lt 0 5 C e when changing wire resistance lt 20 Q lt 1 0 C from ambient temperature changes lt 0 1 of the range 10 K Averaging time lt 0 5 s default External transducers supply output 24V 5 Yo 30 MA Relay output NO load 250 V 0 5 A number of switching 1 x 105 Serial interfaces USB for configuration 1 1 2 0 address 1 8N2 mode baud rate 9 6 kbit s max USB cable lenght lt 3m broadcast address 253 transmission protocol Modbus RTU response time 100 ms Test voltages supply alarm outputs 2 1 kV d c measuring inputs 3 2 kV d c USB interfaces 0 7 kV d c 31 Protection grade IP from frontal side IP 65 for terminals IP 20 Protection grade IK IK 06 Power input in the supply circuit lt 3VA Weight lt 0 2 kg Overall dimensions Rated operating conditions supply voltage ambient temperature storage temperature humidity external magnetic field sustained overload capacity short term overload 1 s sensor inputs voltage inputs current inputs
6. is used for mea suring after a repair Connection and or using the meter in a way which is not compliant with the users manual may cause deterioration of the degree of protection 4 INSTALLATION 4 1 Mounting The N21 meter has separable strips with the screw terminals which enable the connection of external supply wires of 2 5 mm and signal wires of 1 5 mm You must prepare a 92 08 x 45 mm cut out in the panel The thi ckness of the panel material should not exceed 6 mm The meter should be mounted from the panel front with disconnected supply volta ge Check the correct position of the seal before placing the meter into the panel When the panel is inserted in the slot mount it in the panel with the mounting brackets Fig 2 Figure 3 Meter dimensions 4 2 External Connection Diagrams ao 1 2 3 4 5 6 7 8 9 10 11 12 13 14 2 o Q Q o Q Q o o o UDB measured signals alarm 24V N 230V configuration 24V d c supply 30 mA max supply of object transducers Figure 4 Electrical connections of the N21 meter N DM Comment concerning safety The meter is provided with a universal power supply that allows operation in a wide range of input voltages 22 253V a c 20 300V d c Life threatening voltage also appears at the terminal 12 of the meter in the case
7. of the use of the input terminals 13 14 1 2 3 4 5 6 thermocouple J K voltage input 60mV 1 2 3 4 5 6 1 2 3 4 5 Resistance thermometer Resistance thermometer in a 2 wire system in a 3 wire system 2 3 4 5 6 current input 20mA voltage input 10V Figure 5 Connections of measuring signals AN 10 5 OPERATION 5 1 Display description measuring value user defined unit alarm indicator USB cable connection indicator bargraph Figure 6 Front panel 5 2 Power on status indication The display shows information about the manufacturer device type and software version after switching the supply on Then the meter starts to show the measuring values according to the current configuration Con program ion using e 5 3 Device configurat mous 0001 0001 I T 0001 0001 o o A gt Rsuepeuetp enPIAIPU NOM elejno eD Do 00 09 00 02 00 s 13401 v s I uun1 ETOZ O ayBuAdo gt 8S T 0 A uo2 KT35 zzo5 p puoTunop UOTIEIN TJUOD 2204 azod TeTIas qam pa193uu0 0970 TZN TZN AT1921102 PspeoTumop UOTJBINGTJUCO 35 POTJTJUSPT SOTASP APTS KTaD31105 p peoTumop UOTJBIN TJU0J dO snapow e im ar sOumas elau39 4 uopein yuo2 jndyno 4 snqpoR ta q aoTaaq wod eueS qaqaq h ASS e josuo 090 IZN IZN papauuco pod solnsq sme1
8. 2x16 bits registers Registers contain exactly the the byte order same data as 32 bit registers of 7500 of 3210 range Read only registers 7000 7018 Float Value is set in the two following 16 bit 2x16 bits registers Registers contain exactly the byte order the same data as 32 bit registers of 7500 of 1032 range Read only registers 7500 7509 Float Value set in the 32 bit register Read only 32 bits registers 8012 8015 Integer The coefficients of the individual 32 bits characteristic for the measuring value conversion Table 3 b m E 20 5 55 6 Range Description 8 22 2 4000 RW 0 5 Selection of the measuring input 0 0 voltmeter 10 V 1 millivoltmeter 60 mV 2 milliammeter 20 mA 3 Pt100 4 J thermocouple 5 K thermocouple 22 4001 4002 RW RW 0 5 19999 19999 Relay output operating mode 0 H OFF disabled permanently 1 H ON enabled permanently 2 N OFF 3 N ON 4 OFF 5 ON Low threshold triggering the relay output AL L Fig 10 NOTE The value in the register contains the value of the triggering threshold x10 600 4003 RW 19999 19999 Low threshold triggering the relay output AL L Fig 10 NOTE The value in the register contains the value of the triggering threshold x10 800 4004 RW 0 3600 Relay activation delay 4005 RW 0 3600 Relay deactivation delay 4006 R
9. LUMEL PANEL MOUNTED METER TYPE N21 USER S MANUAL CE Contents R N a 7 8 9 INSTALLATION APPLICATION AND METER DESIGN 5 METER SED coria ea 6 BASIC REQUIREMENTS OPERATIONAL SAFETY 6 4 1 Mounting 4 2 External Connection Diagrams 9 SERVICE ta oz an NAA AN 11 5 1 Display desEripLIONi oc NAA NG Aka AG 5 2 Power on status indication 5 3 Device configuration using e Con program 12 5 3 1 Configuration parameters 14 5 3 2 Alarm output operating modes 18 5 3 3 Individual characteristic 5 3 4 Preview of the measuring values CONFIGURATION INTERFACE a 6 1 USB Interface list of parameters 21 6 2 Map of N21 meter registers 21 ERROR CODES Laan sa tenses AG AABANG SOFTWARE UPDATE TECHNICAL DATA nsa AA GANA AA 10 ORDERING CODE 11111 0372235283 NANG wi add NONIE DENG 1 APPLICATION AND METER DESIGN The N21 meter is a digital programmable panel mounted instrument designed to measure d c voltages or d c currents unipolar or bipolar temperature wit
10. W 0 3 Precision of the displayed values 0 0 1 0 0 2 0 00 3 0 000 4007 reserved 4008 reserved 4009 RW 0 1 Enabling individual characteristic 0 without individual characteristic 1 individual characteristic enabled 4010 RW 0 1 Saving parameters to the memory 0 do not save 1 save parameters NOTE Saving is performed when the access password is set register 4012 4011 reserved 23 4012 4013 RW 0 32000 Access password to save the parameters Enabling the automatic temperature compensation of the thermocouple cold junction line resistance 0 without automatic compensation a parameter specified in the registry 4014 is included in compensation 1 automatic compensation 4014 2000 6000 The value of manual temperature compensation of the thermocouple cold junction or correction for the resistance thermometer sensor Temperature range 20 00 C 60 00 C NOTE The registry value contains a temperature x100 4015 5 10 30 50 100 150 200 Averaging time of the measurement results NOTE The registry value contains time in seconds x10 4016 0 1 Language of messages 0 POL 1 ENG 4017 R Serial number MSB 4018 R Serial number LSB 4019 R Software version 4020 R Custom made version 24 Table 4 16 bit 32 bit Register regi
11. e output N ON permanently H ON OFF activates the output ON permanently Other modes as shown in Figure 10 Low Lower threshold threshold of the input signal triggering causing the alarm 1999 9 1999 9 60 0 the relay output reaction output AL_L at Fig 10 High Upper threshold threshold of the input signal triggering causing the alarm 1999 9 1999 9 80 0 the relay output reaction output AL Hat Fig 10 16 Relay Relay activation delay activation relating to changes 0 3600 s 0 delay of the input signal Relay deactivation Relay delay relating to deactivation y 9 0 3600 s 0 changes of the input delay a signal General Settings tab Saving Saving actually set Do not save Do not parameters parameters to the Save save to the internal non volatile memory memory Language Setting language for Polish Polish dislpayed messages English 17 5 3 2 Alarm output operating modes a N ON alarm state 1 hu on HA s off gt AL_L AL_H Measured value b N OFF A Alarm state 4 ob off AL L AL H Measured value a gt AL_L AL_H Measured value gt AL_L AL_H Measured value Figure 10 Relay output operating modes 18 5 3 3 Individual characteristic The individual characteristic allows the conversion of the measuring value to the displayed value It is used for imaging the measurements of non electrical quantities using non electrical transducers
12. ftwa re and the update files are available at the website www lumel com pl Updating is done via the USB interface of the N21 meter 28 LUMEL UPDATER v 1 15 ukasa Device Nar Port COMS 1s Disconnect Bik File ward compalibiBy mode OAN21_LPCTSA7 Debug N21_vO_AB img Messages Doe azi N21 Figure 16 Sending data please wat The program window for updating 21 the software 23670 OK 14 36 31 Caution Software update automatically resets meter settings to manufacturer settings so it is recommended to save meter settings using e Con software before upgrading When you start an e Con program Figure 7 set the communication parameters in the Communication field at the left side of e Con window and then click connect button The meter will be automatically recognized The parameters should be read and saved to a file for later restoration using the N21 configuration field Next select Update firmware from the menu at the top The window of the LUMEL UPDATER LU program will open Figure 18 Using this program select the correct port on which the N21 meter was installed and press the Connect button Information about the progress of the update process are available in the Messages window The message Port opened is displayed when the port is open properly The meter will display the message UPDATE and the progress bar will ap
13. h use of thermocouples J Fe CuNi K NiCr NiAl and Pt100 resistance thermometers The readout field is an OLED graphic display with a resolution of 32x128 points The eCon program is designed for the configuration of the N21 meter The meter should be connected to a PC via a miniUSB connector located on the rear of the meter Following parameters can be set measuring input display precision of the result decimal point e relay output operating mode e thresholds triggering the relay output e time delays of the relay output triggering e individual characteristic for measuring signal automatic or manual temperature compensation of cold junctions averaging time of the measurement e user defined units of measured signal display language Meter output signals are isolated from the input signals and power supply 4 Lae Figure 1 View of the meter 2 METER SET Complete set of the meter includes NZ Maa arias 1pc clamps to fix in the panel 4 pcs Si wa az OCE LOSY Sus hie 1pc USES manually tits aaah 1pc s guarante Card uu u u Namana nan 1pc SOB A a ET 1 pc Accessories For the N21 meter you can order USB CABLE A miniUSB B 1m BLACK Order code 20 069 00 00150 3 BASIC REQUIREMENTS OPERATIONAL SAFETY The symbols in the manual mean Warning important to be aware of before connecting the device A Warning of potentially hazardous sit
14. nfiguration to a pdf file using the eCon menu Fig 8 N21 configuration Numer seryjny O firmware 0 40 t aff fi q Export the configura 4 tion to a pdf file Saving the configuration i to a file Information about the meter Reading the configuration Saving the configuration to a meter Reading the configuration from a meter Figure 8 Read write and export settings 13 Communication Port Miernik Meter N21 COM10 KZ Device ID 1 Baud rate 9600 v Mode RTU 8N2 y Timeout 5000 ms Duse the f ings of the modul ni Use the factory settings of the module disconnect Status port disconnected Device unknown e Serial port Modbus TCP Figure 9 Establishing connection to N21 meter 5 3 1 Configuration parameters After establishing a connection there are configuration parameters of the meter on the right side of the program window 14 Table 1 Range Parameter ak Range of parameter of Parameter description name change parameter change Input Configuration tab Measuring Type and range Voltmeter 10 V Voltmeter input of the input signal Millivoltmeter 60 mV 10 V Milliammete 20 mA Pt100 thermocouple J thermocouple K TDesigning a pictogram representing the symbol of measuring Defining value unit using the a units graphical editor Figure 19 7 Designed pictogram can be uploaded to the meter or saved to a file Figure 12 RAM
15. ow in the 18 vertical lines with 8 points each Each line corresponds to one byte of data in which the value 1 in a given field corresponds to turning on a given point on the display and the value O turning off a given point The definition of the whole image creates a string of 54 bytes in 16 bit 4500 registers of the meter The values of the 8 bit lines in the 16 bit registers are arranged as shown in Figure 15 MSB LSB z Reg4500 N E 14 43 12 11 10 9 8 7 6 5 4 3 2 1 o Line 1 N 2 Line 0 N 2 N 0 26 Figure 15 Setting a line value in the 16 bit register 7 ERROR CODES After switching the meter on the error messages may be displayed Following list shows reasons of errors Overflow of the upper value of the indica tion range Overflow of the lower value of the indica tion range Saving the configuration to non volatile memory of the meter is in progress 27 Fail ure of non volatile memory of the me Attempt to restore the default values Please contact the service on a recurrent problem Restoring manufacturer settings Fail suri con ure in communication with the mea ng transducer of the meter Please tact the service Update Meter s software update is in progress 8 SOFTWARE UPDATE The features implemented in the N21 meter enable to upgrade its software using a PC with e Con software installed Free eCon so
16. pear The LU program will display information about the software version and the version of the bootloader when the meter is properly detected At this point you should select the correct meter upgrade file by pressing the If the correct file is selected the LU program LU will display a message File opened Press Send button The LU program shows a progress bar and the meter displays the message Update during the software update The meter restarts restores the manufacturer settings and goes to normal operation after the upgrade process is successfully completed Information Done and duration of the update will appear in the LU program window In the next step you can restore previously saved settings of the meter using e Con software Caution Turning meter supply off during upgrade process may result in permanent damage 29 9 TECHNICAL DATA Measuring ranges Measuring ranges of Un voltage 72 mV 60 mV 60 mV 72 mV input resistance gt 200 kQ 12 V 10 V 10 V 12 V input resistance gt 1 MQ Measuring ranges of In current 24 mA 20 mA 20 mA 24 mA input resistance lt 500 1 Temperature measurement using Pt100 200 C 850 C current of the sensor lt 300 uA max resistance of wires lt 20 Q Temperature measurement using thermocouple J 50 C 1200 C Temperature measurement using thermocouple K 50 C 1370 C Max resistance the external measuring circuit voltage
17. requirements for overcurrent protection for supply circuit working position warm up time 32 96 x 48 x 64 mm 22 60 V a c 50 400 Hz 20 60 V d c terminals 12 13 60 253 V a c 40 400 Hz 60 300 V d c terminals 13 14 10 23 55 C 25 85 C lt 95 condensation not permissible 0 40 400 A m measurement of voltage current 110 10v 2 Un 10 In characteristic B horizontal 15 min Readout field OLED display 32x128 points amber Electromagnetic compatibility noise immunity acc to EN 61000 6 2 noise emission acc to EN 61000 6 4 Safety requirements according to EN 61010 1 standard isolation between circuits basic installation category Ill pollution grade 2 maximum phase to earth operating voltage for supply circuit 300 V for measuring input 50 V for remaining circuits 50 V altitude a s l lt 2000 m 33 10 ORDERING CODE The N21 meter comes standard with universal input relay output power output 24 V d c supply voltage 24 V a c d c 230 V a c d c miniUSB port for programming Version standard 00 custom made XX Language Polish E English E other X Acceptance tests without extra quality requirements 0 with quality inspection certificate acc to customer s request X after agreeing with the manufacturer ORDERING CODE EXAMPLE The
18. s elnpow ayy jo sumas Hope aya sn J Sen eA paanseaw ZA TX sonsti nzpeaeup ENPIAIPUT ADO s nsu npeaeup ENPIAIPI uonesuadwos Ienuew uonesuadwo gt sjewo ny aun yuo sup bujbosay Po Aejdsip y uo paAejdsip sanjea yo uo1spaid A 09 0 axemmiTz TOOO OSI xsqumu TeTz s aping aiemuuy qepdn sayepdn 405 pay 1d N3 suun 6ujuyag andui Sunnse w uopeinbyuo ynduy a E HE s4 uoneinB6uuo3 TZN Sowog sw AI 0005 an B ang naa 0096 184 pneg oai apow GI 221000 0LWOD LEN IWAN uopeojuni Hod LOD awen sajnpow 44 siajjomuo9 siayaw sisonpsueil 8olnap Iv ua paps 103EIN HU0D 331030 E eizp ziejj uoo auoigni AOP 2 ebp sia Figure 7 e Con program window 12 The eCon program designed for configuration of the N21 meter is availab le at the manufacturer s website www lumel com pl The meter should be connected to a PC via USB cable The USB drivers will be installed and a new serial port will appear on the first connection When the eCon program starts select the port on which the device is installed in the area Communication set the transmission parameters baud rate 9600 mode RTU 8N2 and then click the icon connect Before changing a configuration you should read and save the current configuration for future restore the settings You can save the parameters to a file read from a file as well as export the co
19. ster register a Description address address yp 6000 7000 7500 R Displayed value 6002 7002 7501 R Measuring value 6004 7004 7502 R Temperature of the thermocouple cold junction 6006 7006 7503 R Temperature of the thermocouple cold junction with a correction 6008 7008 7504 R Value from AC converter 6010 7010 7505 R Averaged value from AD converter 6012 7012 7506 R reserved 6014 7014 7507 R reserved 6016 7016 7508 R reserved 6018 7018 7509 R reserved When lower limit is exceeded the value 99999 is set Conversely when upper limit is exceeded the value 99999 is set Table 5 BIE Register register 6 Description address yp 8012 R Individual characteristic parameter X1 8013 R Individual characteristic parameter X2 8014 R Individual characteristic parameter Y1 8015 R Individual characteristic parameter Y2 25 Table 5 32 bit register b wj Description address yp 4500 RW Bit data of an image of the symbol representing the unit of the measuring value as shown in Figure 14 and 15 Lines 1 0 4501 RW Lines 3 2 RW RW sA RW 4526 RW Lines 53 52 18 1 2 3 4 5 18 19 pa 35 24 gt 6 Figure 14 Designing an image of measuring value unit 26 The image of measuring value unit takes a display area of 18x24 points The area is divided into 3 rows and each r
20. uations Especially Failure to follow the directions marked by this symbol could result in serious injuries of the personnel and dama ge of the device Caution Useful notes The notes should facilitate the operation of the device Should pay attention if the device is not working as expected Possible consequences in case of ignoring informa tion In terms of operational safety the meter meets the requirements of the EN 61010 1 standard Comments concerning safety Assembly and installation of the electrical connections should be made only by people authorized to perform assembly of electric devices The person installing the meter is responsible for ensuring the safety of the implemented system Always check the connections before turning the meter on Opening the meter housing gives access to the live parts The supply must be switched off and the measuring circuits discon nected before removing the meter housing Removal of the meter housing cover during the warranty period voids the warranty The meter is designed to be installed and used in the industrial electromagnetic environment conditions The building installation should have a switch or a circuit breaker installed This switch should be located near the device easy accessible by the operator and suitably marked In case of damage the meter can to repaired only by manufacturer s authorized service Check the correct operation of the meter before it
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