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User manual - METER SRT-N118 

7.3.6. 

 

 ”SECu” menu

This menu contains presets connected with availability of other parameters:

“Scod”

  - user password (4-digits number). If this parameter is set at value  

“0000”

, user

password is turned off.

If the user do not remember his password, the access to the menu is possible
by   the   “one-use   password”.   To   get   this   password   please   contact   with
Marketing Division. “Single use password” can be used only one time, after
that   it   is   destroyed.   Entering   this   password   causes   in   clearing   of   user
password, it means sets the user password to „0000”.

The “one-use password” can be used  

ONE TIME ONLY

, it is impossible to use it

again! The “one-use password” can be restored by Service Division only.

“A r1, A r2” 

- this option permits user (

”on”

) or prohibits (

”oFF”

) to modify the thresholds of

the relays/LEDs R1, R2 without knowledge about user password.

7.3.7. 

 

 ”rS” menu

This menu is connected with RS-485 interface, and sets his properties:

”Addr”

- this parameter defines the address of the device, accordingly to Modbus protocol.

It can be set  in range from 0 to 199. If the value 0 is set then device, responds to

frames with address 255 (FFh). 

”bAud”

  - this parameter determines RS-485 interface baud rate. It can be set to one of 8

possible values:  

”1.2”

,  

”2.4”

,  

”4.8”,

 

”9.6”

,  

”19.2”

,  

”38.4”

,

”57.6”

,

”115.2”

, which

respond to the baud rates of 1200, 2400, 4800, 9600, 19200, 38400, 57600 and

115200 bit/s respectively.

”mbAc”

- this parameter sets the access to the configuration registers of the device.    

Possible values:

”on”

- configuration registers can be set via  RS-485 interface,

”oFF”

- configuration registers can not be set via  RS-485 interface.

The access to registers no 04h i 05h cant be denied by 

”mbAc” 

parameter (see: 

LIST OF REGISTERS

).

”mbtO”

- this parameter defines maximal time (sec) between following frames received by
the device. If the delay will be greater than the value of  

”mbtO”  

parameter, the

relays  and analogue outputs which are controlled via RS-485 interface, will set to
alert state (see 

"OUtP" menu, 

 and 

“rEL1” menu

 

description). Parameter “

mbtO

can be set to values from 0 to 99 seconds. The value 0 means that the time will be

not controlled.

”rESP”

-  this parameter defines minimal (additional) delay between the Modbus message

and   the   answer   of   the   device   (received   and   sent   via   RS-485   interface).   This

additional delay allows the device to work with poor RS-converters which do not

works properly on baud rates higher than 19200. This parameter can be set to one

of values:

31

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Summary of Contents for SRT-N118

Page 1: ...al METER SRT N118 Input type Pt100 500 1000 Wall mounting case IP 67 Read the user s manual carefully before starting to use the unit or software Producer reserves the right to implement changes witho...

Page 2: ...GRAMMING MENU 23 7 2 PARAMETERS EDITION 24 7 2 1 Numeric parameters digit change mode 24 7 2 2 Numeric parameters slide change mode 24 7 2 3 Switch parameters LIST type 25 7 3 MENU DESCRIPTION 25 7 3...

Page 3: ...ng to this manual local safety and EMC regulations If the device is equipped with PE connector it should be connected to PE wire Otherwise PE wire should be connected to GND connector The unit must be...

Page 4: ...C to 600 C and input is fully linearised accordingly to PN EN60751 A2 1999 standard Result is showed on 4 digit LED display The device can be equipped with two relay or OC type outputs Optionally SRT...

Page 5: ...max 20 W every wire Sensor power supply output 24V 5 10 max 100 mA stabilized Relay output 0 1 or 2 NO 1A 250V AC cos j 1 OC type output 0 1 or 2 30mA 30VDC 100mW Active current output optional for tw...

Page 6: ...70 C Humidity Altitude 5 to 90 no condensation up to 2000 meters above sea level Screws tightening max torque 0 5 Nm Max connection leads cross section 3 mm2 for connectors 1 6 or 2 mm2 for connectors...

Page 7: ...st be conducted with a disconnected power supply Protecting the power supply connections against unauthorized persons must be taken into consideration 4 1 UNPACKING After removing the unit from the pr...

Page 8: ...y that in the case of a short circuit of the cable from the side of the unit the cable shall be protected against destruction with an electrical installation fuse Wiring must meet appropriate standard...

Page 9: ...creened signal cables is recommended Signal cable screens should be connected to the earthing only at one of the ends of the screened cable In the case of magnetically induced interference the use of...

Page 10: ...l connections must be made while power supply is disconnected Figure 4 4 Terminals description relay outputs 10 Power supply depending on version option R2 option R1 24V 5 10 Imax 100 mA Uo DATA DATA...

Page 11: ...85 PE OC1 OC2 Umax 30V DC Imax 30mA Pmax 100mW option OC1 option OC2 Power supply depending on version n c Pt100 500 1000 12 11 10 Pt100 500 1000 3 4 1 2 14 15 16 5 6 12 11 10 9 8 7 13 option R1 24V 5...

Page 12: ...OC1 Umax 30V DC Imax 30mA Pmax 100mW option OC1 ACTIVE current output option Power supply depending on version n c Pt100 500 1000 12 11 10 Pt100 500 1000 3 4 1 2 14 15 16 5 6 12 11 10 9 8 7 13 option...

Page 13: ...OC1 Umax 30V DC Imax 30mA Pmax 100mW option OC1 Passive isolated current output 4 20mA option Power supply depending on version n c Pt100 500 1000 12 11 10 Pt100 500 1000 3 4 1 2 14 15 16 5 6 12 11 1...

Page 14: ...nce of particular wires Ra Rd CAN BE DIFFERENT When 3 wires connection is used the resistance of particular wires Ra Rd MUST BE IDENTICAL to enable proper compensation of it s resistance The resistanc...

Page 15: ...tromagnets motors etc it is required to use additional suppression circuit typically capacitor 47nF min 250VAC in series with 100R 5W resistor connected in parallel to relay terminals or better direct...

Page 16: ...current output only Figure 4 17 Example of passive current outputs connection for device with passive current output only 16 6 5 8 7 OC1 Uo voltage input 24V Logic controller 6 5 8 7 R 2k2 LED 10 mA U...

Page 17: ...s operation In cases where the unit gets dirty do not clean with solvents For cleaning use warm water with small amount of detergent or in the case of more significant contamination ethyl or isopropyl...

Page 18: ...ent exceeds the permissible measurement range warning Hi or Lo is displayed rather than calculated result depends on exceeded value The warning can be effect of measurement circuit malfunction In that...

Page 19: ...LEDs and analogue outputs can be controlled depend on the current value of input signal or the peak value see HOLd menu Figure 6 1 Process of peaks detection 6 3 CONTROL OF THE RELAY OUTPUTS The cont...

Page 20: ...LED outputs The relay outputs and LEDs named R can be controlled depend on both the current value and the peak value when peak detection is active of the input signal 20 zone A zone B measure SEtP pa...

Page 21: ...0 then the relay state will be changed as soon as input value exceeds any of the border values see points A and C Figure 6 4 a b c If values of t on or and toFF are positive then relay state will be...

Page 22: ...s mode Obja nienie A B C D E points where measured signal exceeds border values expected value allowed deviation BON BOFF CON COFF EON EOFF relays state changes moments for t on 0 toFF 0 tA tB tC tD t...

Page 23: ...lar parameters is described in paragraph MENU DESCRIPTION Some of the parameters can be accessed without menu entering quick view mode After pressing or v button name of the threshold e g rEL1 and his...

Page 24: ...ge of current position flashing digit or the sign Short pressing of the ENTER button causes change of the position digit Press ENTER at least 2 seconds to accept the changes after that question SEt is...

Page 25: ...change of value acceleration deceleration direction change While editing switch parameter selection of switch parameter If numerical parameter is being edited a short press of ENTER button change edi...

Page 26: ...or out value Threshold is the medium value of relay hysteresis HYSt hysteresis of relay range 0 999 Full hysteresis of the relay is equal to 2x HYSt parameter The relay state can change when an input...

Page 27: ...ameter is set by unit parameter toFF turn off delay time the relay is turned off with delay equal toFF if the input value exceeds appropriate border value defined with threshold and hysteresis at leas...

Page 28: ...eter allows shifting of measurement scale and express value added to calculated measured result 7 3 3 OutP menu This menu contains parameters of analogue output control Menu is available if the device...

Page 29: ...defines the percentage extension of nominal analogue range with 0 1 resolution Parameter Lo r defines lower border of the range due to formula Outmin A A Lo r where A lower signal value range limit Th...

Page 30: ...E PEAK VALUES modE the type of detected changes of the input signal can be set to values norm peaks peak and next drop of the input signal of value equal at least PEA inv drops drop and next peak of t...

Page 31: ...ddress 255 FFh bAud this parameter determines RS 485 interface baud rate It can be set to one of 8 possible values 1 2 2 4 4 8 9 6 19 2 38 4 57 6 115 2 which respond to the baud rates of 1200 2400 480...

Page 32: ...20c 50c Tab 7 1 Settings of rESP parameter 7 3 8 Edit parameter This parameter allows to change the edition mode of numerical parameters dig the change to by digit mode Slid slide change mode 7 3 9 d...

Page 33: ...e MENU ESC inPt ENTER MENU ESC ENTER ENTER MENU ESC SEtP SEt2 HYSt modE t on toFF unit AL Parameter edition See next page ENTER MENU ESC ENTER ENTER MENU ESC Omod OUtL OUtH Lo r Hi r AL Parameter edit...

Page 34: ...ter edition ENTER MENU ESC ENTER ENTER MENU ESC Addr bAud mbAc mbtO rESP Parameter edition ENTER MENU ESC ENTER ENTER MENU ESC Scod A r1 A r2 See previous page ENTER MENU ESC ENTER ENTER MENU ESC modE...

Page 35: ...om page 29 Iout 30 0 10 0 20 0 10 0 16 mA 4 mA 2 16 4 36 mA Calculated Iout exceeds the output working range 3 21 mA so current output will generate current equal to the upper border of range defined...

Page 36: ...s it means that high byte express integer part and low byte fractional part of desired output voltage 06h No 999 6000 Peak drop value no decimal point 10h Yes 0 2 tyPE parameter in InPt menu input typ...

Page 37: ...nt included 39h Yes 999 999 HySt parameter in rEL2 menu no decimal point included 3Ah Yes 0 5 modE parameter in rEL2 menu 0 noAC mode 1 on mode 2 oFF mode 3 in mode 4 out mode 5 modb mode 3Bh Yes 0 99...

Page 38: ...meter in OUtP menu for active current output and active voltage output expressed in 0 1 Yes 0 299 Lo r parameter in OUtP menu for passive current output expressed in 0 1 A4h1 Yes 0 199 Hi r parameter...

Page 39: ...EXAMPLES OF QUERY ANSWER FRAMES Examples apply for device with address 1 All values are represent hexadecimal Field description ADDR Device address on modbus network FUNC Function code REG H L Starti...

Page 40: ...A0 DATA identification code 21B0h 3 Change of the device address from 1 to 2 write to reg 20h ADDR FUNC REG H L DATA H L CRC L H 01 06 00 20 00 02 09 C1 DATA H 0 DATA L new device address 2 The answe...

Page 41: ...nctions presented above are available only 11 DEFAULT AND USER S SETTINGS LIST Parameter Description Default value User s value Desc page Parameters of relay R1 operation rEL1 menu SEtP Relay R1 thres...

Page 42: ...exception 22 1 mA 29 Passive current output configuration OUtP menu Omod Passive current output mode 4 20 mA 28 OUtL Display value for 4 mA current output 0 0 29 OUtH Display value for 20 mA current...

Page 43: ...s to the configuration parameters SECu menu A r1 Permission to changes of relay R1 threshold without of the user password knowledge on 31 A r2 Permission to changes of relay R2 threshold without of th...

Page 44: ...SIMEX Sp z o o ul Wielopole 11 80 556 Gda sk Poland tel 48 58 762 07 77 fax 48 58 762 07 70 http www simex pl e mail info simex pl...

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