Simex SRT-94-XA Page 4 User Manual Download

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User manual - METER SRT-94-XA

- Do not use the unit in areas threatened with excessive shocks, vibrations, dust,

humidity, corrosive gasses and oils.

- Do not use the unit in areas where there is risk of explosions.

- Do not use the unit in areas with significant temperature variations, exposure to

condensation or ice.

- Do not use the unit in areas exposed to direct sunlight.

- Make sure that the ambient temperature (e.g. inside the control box) does not

exceed the recommended values. In such cases forced cooling of the unit must

be considered (e.g. by using a ventilator).

The unit is designed for operation in an industrial environment and must
not be used in a household environment or similar.

GENERAL CHARACTERISTICS

The

SRT-94-XA

meter is equipped with thermocouple input (K, S, J, T, N, R, B, E). The

measurement range depends on connected thermocouple type. Measurement is linearised by

the polynomial characteristics referred to particular thermocouples and temperature of cold

ends is compensated automatically. The device has additional measurement range (-

90mV) mainly for diagnostics of measurement circuits. Being in this range, unit displays

direct voltage connected to its input (without compensation of cold ends). The result is

presented on 4-digit LED display. For every thermocouples result is displayed as integer (no

decimal point, e. g 1460) and for mV range with 2 digits after decimal points (with resolution

0.01mV e. g. -1.23 ).

SRT-94-XA

can be equipped with two or four relay (or OC type) outputs. Optionally with

two relays outputs can be equipped with active current output. Device

SRT-94-XA

is equipped

with RS-485 / Modbus RTU communication interface and 24V/100mA supply output for free

use. The meter can be ordered in two power supply versions.

TECHNICAL DATA

Power supply voltage

(depending on version)

External fuse (required)

Power consumption

85...

230

...260V AC/DC; 50 ÷ 60 Hz

(separated)

or 19...

...50V DC and 16...

...35V AC (separated)

T - type, max. 2 A

max. 4.5 VA @ 85 ÷ 260V AC/DC

max. 4.5 VA @ 16V ÷ 35V AC

max. 4.5 W @ 19V ÷ 50V DC

Measurement input

thermocouple type

: K, S, J, T, N, R, B, E

Summary of Contents for SRT-94-XA

Page 1: ... 94 XA Firmware v 5 18 or higher Input type TC K S J T N R B E 4 x 20 mm display Read the user s manual carefully before starting to use the unit or software Producer reserves the right to implement changes without prior notice 2018 12 20 SRT 94 XA_INSSXEN_v 2 11 001 ...

Page 2: ... MENU 19 7 2 PARAMETERS EDITION 20 7 2 1 Numeric parameters digit change mode 20 7 2 2 Numeric parameters slide change mode 20 7 2 3 Switch parameters LIST type 21 7 3 MENU DESCRIPTION 21 7 3 1 rEL1 menu 22 7 3 2 bEEP menu 24 7 3 3 inPt menu 24 7 3 4 OutP menu 25 7 3 5 bri parameter 26 7 3 6 HOLd menu 26 7 3 7 SECu menu 27 7 3 8 rS menu 27 7 3 9 Edit parameter 28 7 3 10 dEFS parameter 28 7 3 11 SE...

Page 3: ...afety and EMC regulations GND input of device should be connected to PE wire The unit must be properly set up according to the application Incorrect configuration can cause defective operation which can lead to unit damage or an accident If in the case of a unit malfunction there is a risk of a serious threat to the safety of people or property additional independent systems and solutions to preve...

Page 4: ...ermocouples and temperature of cold ends is compensated automatically The device has additional measurement range 10 90mV mainly for diagnostics of measurement circuits Being in this range unit displays direct voltage connected to its input without compensation of cold ends The result is presented on 4 digit LED display For every thermocouples result is displayed as integer no decimal point e g 14...

Page 5: ...ce RS 485 8N1 and 8N2 Modbus RTU not separated Baud rate 1200 bit s 115200 bit s Display depending on version LED 4 digit 20mm height red or LED 4 digit 20mm height green Data memory non volatile memory EEPROM type Protection level IP 65 optional version with panel cut out sealing available Terminals protection IP 20 Housing type Housing material Housing dimensions Mounting hole Assembly depth Pan...

Page 6: ...se characteristics installation of the unit must be conducted correctly and according to the local regulations Read the basic safety requirements on page 3 prior to starting the installation Ensure that the power supply network voltage corresponds to the nominal voltage stated on the unit s identification label The load must correspond to the requirements listed in the technical data All installat...

Page 7: ...3 mm mounting hole Figure 4 1 4 2 must be prepared The thickness of the material of which the panel is made must not exceed 5mm When preparing the mounting hole take the grooves for catches located on both sides of the housing into consideration Figure 4 1 4 2 Place the unit in the mounting hole inserting it from the front side of the panel and then fix it using the brackets Figure 4 3 The minimum...

Page 8: ...4 2 Allowable mounting hole dimensions Figure 4 3 Installing of brackets and dimensions of connectors Figure 4 4 Minimum distances when assembly of a number of units 8 115 mm 67 mm 92 mm 5 mm 12 mm 10 mm 8 5 mm 16 mm 92 mm max 5 mm 43 mm ...

Page 9: ... Over tightening can lead to damaging the connections inside the units and breaking the thread In the case of the unit being fitted with separable clamps they should be inserted into appropriate connectors in the unit even if they are not used for any connections Unused terminals marked as n c must not be used for connecting any connecting cables e g as bridges because this can cause damage to the...

Page 10: ... metal housing of the filter must be connected to the earth with the largest possible surface The cables connected to the filter output must not be run with cables with interference e g circuits controlling relays or contactors Connections of power supply voltage and measurement signals are executed using the screw connections on the back of the unit s housing Figure 4 5 Method of cable insulation...

Page 11: ...o relay terminals or better directly on the load In consequence of using the suppression circuit the level of generated electromagnetic disturbances is lower and the life of relay contacts rises 11 5 6 7 8 9 GND DATA Uo 24V 5 10 Imax 100mA TC GND GND GND DATA RS 485 1 2 10 11 12 13 14 15 R1 3 4 optional ACTIVE current output optional R2 n c n c optional optional Power supply depending on version 1...

Page 12: ...ion circuit connection a to relay terminals b to the inductive load Depending on version 85 230 260V AC DC or 19 24 50V DC 16 24 35V AC Figure 4 10 Connection of power supply and relays 12 N 10 11 10 11 L L N R4 FUSE 1 2 L N L N 10 11 12 13 14 15 3 4 FUSE R1 R2 R3 ...

Page 13: ...ponents and shorten the fault free time of the unit 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 alcohol Using any other agents can cause permanent damage to the housing Product marked with this symbol should not be placed in municipal waste Pl...

Page 14: ... the controller goes to the measurement mode 6 1 MEASUREMENT MODE In the measure mode the measurement results are displayed on the display If the result of measurement exceeds the permissible measurement range warning Hi or Lo is displayed rather than calculated result depends on exceeded value In the measurement mode user can check main thresholds values After pressing or v button name of the thr...

Page 15: ...eak will be displayed and display time counter will be cleared Figure 6 1 If no peaks are detected while time timE elapses device starts to show the current value of input signal again If HdiS HOLD then setting parameter timE 0 0 causes holding peak value until ESC button is pressed If HdiS rEAL then value timE 0 0 means no holding Displaying peak value is signalized by flashing most right decimal...

Page 16: ...gure 6 3 the relay will be turned on when value of input signal is contained in zone A modE in or zone B modE out and turned off if the signal is contained in the second one Figure 6 2 One threshold control of the relay LED outputs Figure 6 3 Two threshold control of the relay LED outputs The relay outputs and LEDs named R can be controlled depend on both the current value and the peak value when ...

Page 17: ... hysteresis and threshold hysteresis respectively If t on and toFF parameters are set to 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 turned on if the input value exceeds the border values and stay bigger or lower during at least t on see points ...

Page 18: ...s connected with relay outputs are described in paragraph rEL1 menu 6 3 2 Two thresholds mode Objaśnienie 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 tE time periods while input signal is in zone A or zone B Figure 6 5 Principle of LED relay output operation for t...

Page 19: ...cular 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 value will be displayed on the display in alternating mode If or v will be pressed in 5 sec again the next threshold will be displayed else the device comes back to the measurement mode If a free a...

Page 20: ...eys or v causes change 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 displayed and user must to confirm or cancel the changes To conform changes and story it in EEPROM press ENTER button shortly after SEt is displayed To cancel the changes press ES...

Page 21: ...flashing digit slide 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 edited position A long press of ENTER button at lest 2 sec causes of display a SEt ask which allow user to make sure if change of the parameter value is correct If switch parameter is...

Page 22: ...in 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 signal is out of threshold hysteresis to threshold hysteresis zone Presented parameters should be set to ensure that SEtP HYSt SEt2 HYSt SEtP HYSt or SEt2 HYSt do not exceeds the measure range Addi...

Page 23: ...esis at least toFF time toFF range 0 99 9 defined with 0 1 sec resolution Unit of this parameter is set by unit parameter If time when the input signal exceeds some border value is shorter than t on or toFF time the relay do not change his state see paragraph CONTROL OF THE RELAY OUTPUTS unit unit of time for t on i toFF parameters Can be set on one of two values min minutes SEC seconds AL this pa...

Page 24: ... 3 inPt menu This menu presets the measurement input tYPE type of the input sensor This parameter can be set to values thermocouple type measurement range tc K 200 C 1370 C tc S 50 C 1768 C tc J 210 C 1200 C tc t 200 C 400 C tc n 200 C 1300 C tc r 50 C 1768 C tc b 250 C 1820 C tc E 200 C 1000 C volt The device has additional measurement range 10 90mV mainly for diagnostics of measurement circuits ...

Page 25: ...OUtL 16mA 4mA for output range 4 20mA Iout W OUtL OUtH OUtL 20mA for output range 0 20mA where W denotes the displayed value OutL parameter can be greater than OutH In this case the conversion characteristic is reversed it means that if input value raises the output current falls Lo r Hi r this parameters define the output current range maximum range 0 to 24 mA If calculated output value Iout exce...

Page 26: ...d 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 the input signal of value equal at least PEA PEA minimal detected signal change classified as peak or drop see Figure 6 1 timE maximum time of displaying of the peak drop value can be set from 0 0 to 19 9 sec with 0 1 sec resolution If Hdi...

Page 27: ... 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 o...

Page 28: ...d parameter 38 4 57 6 115 2 rESP parameter 10c 20c 50c Tab 7 1 Settings of rESP parameter 7 3 9 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 10 dEFS parameter This setting allows to restore the factory settings of the device To get the access to this option special password is required 5465 next t...

Page 29: ...ENTER MENU ESC Measurement mode ENTER MENU ESC ENTER MENU ESC rEL3 MENU ESC MENU ESC bEEP MENU ESC inPt MENU ESC AL r1 r2 r3 r4 Parameter edition 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 edition MENU ESC OutP MENU ESC bri ENTER MENU ESC ENTER Parameter edition ...

Page 30: ...rameter 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 A r3 A r4 ENTER MENU ESC ENTER ENTER MENU ESC modE PEA timE Hdis H r1 H r2 H r3 H r4 Parameter edition HOUt See previous page MENU ESC SEt 4 digit special password entering 0 _ _ _ ENTER ENTER Default settings restoring ...

Page 31: ...0 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 by parameter Lo r i Hi r it means 21 mA 10 THE MODBUS PROTOCOL HANDLING Transmission parameters 1 start bit 8 data bits 1 or 2 stop bit 2 bits are send 1 and 2 bits are accepted when receive no parity control Baud rate sel...

Page 32: ...ctional part of desired output current 06h No see measurement range Peak drop value no decimal point 08h No 0 50 Temperature inside device housing expressed by 1 C 10h Yes 0 8 tyPE parameter in InPt menu input type 0 thermocouple input K 1 thermocouple input S 2 thermocouple input J 3 thermocouple input T 4 thermocouple input N 5 thermocouple input R 6 thermocouple input B 7 thermocouple input E 8...

Page 33: ...al point included 31h Yes 999 999 HySt parameter in rEL1 menu no decimal point included 32h Yes 0 5 modE parameter in rEL1 menu 0 noAC mode 1 on mode 2 oFF mode 3 in mode 4 out mode 5 modb mode 33h Yes 0 999 t on parameter in rEL1 menu expressed in tenth of seconds or tenth of minutes depend on unit parameter register no 35h 34h Yes 0 999 toFF parameter in rEL1 menu expressed in tenth of seconds o...

Page 34: ... in rEL3 menu expressed in tenth of seconds or tenth of minutes depend on unit parameter register no 45h 45h Yes 0 1 unit parameter in rEL3 menu 0 seconds 1 minutes 46h Yes 0 2 AL parameter in rEL3 menu 0 no changes 1 on 2 off 47h Yes 999 9999 SEt2 parameter in rEL3 menu no decimal point included 48h Yes 999 9999 SEtP parameter in rEL4 menu no decimal point included 49h Yes 999 999 HySt parameter ...

Page 35: ...isabled 1 current output enabled with 4 20mA mode 2 current output enabled with 0 20mA mode 3 current output controlled via RS 485 interface A1h1 Yes 999 9999 OUtL parameter in OUtP menu no decimal point included A2h1 Yes 999 9999 OUtH parameter in OUtP menu no decimal point included A3h1 Yes 0 999 Lo r parameter in OUtP menu expressed in 0 1 A4h1 Yes 0 199 Hi r parameter in OUtP menu expressed in...

Page 36: ...xamples 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 Starting address address of first register to read write Hi and Lo byte COUNT H L No of registers to read write Hi and Lo byte BYTE C Data byte count in answer frame DATA H L Data byte Hi and Lo byte CRC L H CRC error check Hi and Lo byte 1...

Page 37: ...h 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 answer the same as the message ADDR FUNC REG H L DATA H L CRC L H 01 06 00 20 00 02 09 C1 4 Change of baud rate of all devices connected to the net BROADCAST message ADDR FUNC REG H L COUNT H L CRC L H 00 06 00 22 00 04 29 D2 DATA H 0 DAT...

Page 38: ...COUNT L the count of being read registers max 16 The answer ADDR FUNC BYTE C DATA H1 L1 DATA H2 L2 DATA H3 L3 CRC L H 01 03 06 00 0A 00 00 00 01 78 B4 DATA H1 L1 reg 01h 10 displayed value 1 0 DATA H2 L2 reg 02h 0 no errors DATA H3 L3 reg 03h 1 decimal point position 0 0 There is no full implementation of the Modbus Protocol in the device The functions presented above are available only 38 i ...

Page 39: ... Hysteresis of relay R2 0 0 22 modE Operation mode of relay R2 on 22 t on Turn on delay of relay R2 0 0 23 toFF Turn off delay of relay R2 0 0 23 unit Unit of t on toFF parameters of relay R2 SEC 23 AL Reaction for critical situation of relay R2 oFF 23 Parameters of relay R3 operation rEL3 menu SEtP Relay R3 threshold 60 0 22 SEt2 Relay R3 second threshold 80 0 22 HYSt Hysteresis of relay R3 0 0 2...

Page 40: ...le 0 0 24 Active current output configuration OUtP menu Omod Current output mode 0 20 mA 25 OUtL Display value for 0 mA or 4 mA depend Omod current output 0 0 25 OUtH Display value for 20 mA current output 100 0 25 Lo r Extension of the bottom of the nominal output range 5 0 25 Hi r Extension of the top of the nominal output range 5 0 25 AL Current output value on critical exception 22 1 mA 26 Dis...

Page 41: ...n 27 A r3 Permission to changes of relay R3 threshold without of the user password knowledge on 27 A r4 Permission to changes of relay R4 threshold without of the user password knowledge on 27 RS 485 interface configuration menu rS Addr Device address 0 27 bAud Baud rate 9 6 27 mbAc Permission to changes of configuration registers on 27 mbtO Maximum delay between received messages 0 27 rESP Additi...

Page 42: ...User manual METER SRT 94 XA 42 ...

Page 43: ...User manual METER SRT 94 XA 43 ...

Page 44: ...SIMEX Sp z o o ul Wielopole 11 80 556 Gdańsk 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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