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Operator Manual 

Page 

14

 of 

40

 

P/N 1580281 

SEC3120 Digital Transmitter 

Sensor Electronics Corporation 

Rev 10, 20150707 

 

 
You must move cursor to the right of the 
seconds  and  select  ENTER  to  exit 
changing the hour  and  be  able  to  move 
on to the previous menu. 
 

ENTER on ‘PREVIOUS MENU’ to exit changing 
the date and time and return to the Main Menu. 
 
 
 
ENTER  on 

‘SAVE  CHANGES’  to  keep  the  new 

settings 

or ‘ABORT CHANGES’ to cancel them. 

Either choice will return to the Main Menu. 

 

 
ENTER on ‘PREVIOUS MENU’ to return back to the Initial 
/ Top Menu. 

 
 

8.3.

 

Relay Settings – Latching, Delay and Control Logic 

The Relay Menu is found in the Main Menu. 

From  normal  operation  screens  select  ENTER  to  show  the  Initial/Top 
Menu Screen. 

 
 

 

Select ENTER on MAIN MENU. 
 
 

 

Relay Menu (Selected from the Main Menu) 

Move the cursor to RELAY and select ENTER to open the 
relay menu. 
 
 

 

Latching: 

Each relay; Low, Mid, High and Fault; can be individually configured to latch when it is activated.  Setting a 
relay to ‘latch’ will cause it to remain activated after the condition that activated the relay has cleared.  This 
causes the user to acknowledge the activation in order to clear any alarms. 

Delay: 

Delay can also be applied to the activation (ON) or deactivation (OFF) of the individual relays.  The delay 
can be up to 255 seconds for each setting.  If a delay is set to the relay activation (ON DELAY) the alarm 
or fault associated with that relay will not be triggered until after the alarm condition has remained for the 
duration of the delay.  Similarly, if a delay is applied to the deactivation (OFF DELAY) the alarm will remain 
engaged  for  the  number  of  seconds  beyond  when  the  alarm  condition  has  cleared.    Use  caution  when 
applying ON DELAY to the activation of alarm relays as an unsafe atmosphere may be present for up to 
255 seconds prior to any alarms being activated. 

Setting  Relay  Latching  and  Delay  Conditions 

–  set  individually  for  each 

alarm/fault relay 

 
Move the cursor to the desired alarm (LOW, MID, 
HIGH or FAULT) and select ENTER. 

  DATE: 

  MM  / DD / YYYY   

* TIME: 

HH / MM / SS       * 

  PREVIOUS MENU   
   
   

  DATE: 

  MM  / DD / YYYY   

  TIME: 

HH / MM / SS        

* PREVIOUS MENU   
   
   

SAVE CHANGES 

 

ABORT CHANGES 

 

 

  

HIDE LOW GAS    

 

SELF TEST 

 

SET DATE TIME 

PREVIOUS MENU 

 

CALIBRATION 

 

ALARM 

 * 

RELAY 

 

NETWORK 

S1                 ID: XXX

 

               (S1 GAS RANGE) 

 

       (S1 GAS TYPE) 

 

       (STATUS) 

 

        EJECT MEMORY CARD 
        ABORT WARMUP 
        INFO 
*      MAIN MENU 

LOW 

 

MID 

 

HIGH 

        FAULT 

Содержание SEC3120

Страница 1: ...Electronics Corporation Rev 10 20150707 SEC3120 Transmitter Dual Sensor Display Instruction and Operation Manual P N 1580281 Rev 10 20150707 Sensor Electronics Corporation 12730 Creek View Ave Savage...

Страница 2: ...FACTORY AND FOUND DEFECTIVE WITHIN THE WARRANTY WOULD BE REPAIRED OR REPLACED AT SEC S OPTION SEC WILL RETURN REPAIRED OR REPLACED EQUIPMENT PRE PAID LOWEST COST FREIGHT THIS WARRANTY DOES NOT APPLY...

Страница 3: ...ring Operation 12 8 1 Required Sequence for Changes to Configuration 12 8 2 Date and Time 12 8 3 Relay Settings Latching Delay and Control Logic 14 8 4 Sensor Mode Single Unique or Identical 17 8 5 Al...

Страница 4: ...as a Modbus RTU Slave Optional alarm and fault relays Non intrusive programming Non intrusive calibration Removable non volatile time stamped data logging Optional IS barrier Digital communication li...

Страница 5: ...ing Voltage 24 VDC Nominal Range 18 to 32 Vdc measured at the detector head Current Draw without sensors Average 250 mA Peak 500 mA Input Sensor Digital 0 5 V Sensor Electronics Corp SEC Proprietary S...

Страница 6: ...r it could also rise How rapidly will the gas diffuse into the ambient air Select a location for the sensor that is close to the anticipated source of a gas leak Wind or ventilation characteristics of...

Страница 7: ...trip wires to 3 8 inch Solder tin the exposed wire to increase durability Protective bonding is provided by an internal screw location for connection of a grounding wire Installation of this wire shou...

Страница 8: ...ARM N O 6 MID ALARM N C 5 MID ALARM COMMON 4 MID ALARM N O 3 LOW ALARM N C 2 LOW ALARM COMMON 1 LOW ALARM N O NC NORMALLY CLOSED NO NORMALLY OPEN TB 2 SENSOR 1 1 WHITE DATA CAL 2 BLUE OR GREEN 4 20 mA...

Страница 9: ...ormation display When sensor one information is displayed the alarm state LEDs indicate the alarm status for sensor one When sensor two s information is displayed the alarm state LEDs indicate the ala...

Страница 10: ...ged Inital Power Up Screen Sequence of the SEC3120 BRWN Brown Out Reset or SOFT RESET shown on bottom line for a software reset 005 Counts down to 000 second startup delay VER refers to the Firmware v...

Страница 11: ...ft of the screen The right side of the screen will display the ID Range Gas Type and Status The bottom line will scroll through the MC memory card status Date Time and if a sensor has a warning code w...

Страница 12: ...line turn Modbus mode to OFF 2 Delete this unit from the SEC3500 HMI or equivalent device if it was previously online or discovered Consult the SEC3500 manual for details 3 Change the Sensor Role to e...

Страница 13: ...edit the TIME field Use the UP and DOWN switches to choose the hour minutes or seconds to edit and select ENTER Use the UP and DOWN switches to set the value and select ENTER edit hour is shown in fi...

Страница 14: ...has cleared This causes the user to acknowledge the activation in order to clear any alarms Delay Delay can also be applied to the activation ON or deactivation OFF of the individual relays The delay...

Страница 15: ...condition or an SEC3120 unit fault condition Alarm and fault states of sensor two will NOT cause any relays to be engaged This relay mode is commonly used in conjunction with the Single Sensor Role a...

Страница 16: ...UP and DOWN switches to choose the desired logic option SENSOR ONE relays respond to sensor one alarm states only SENSOR TWO relays respond to sensor two alarm states only AND relays will activate on...

Страница 17: ...be issued and the fault relay will be engaged This mode is commonly used for redundancy such as two oxygen sensors used to ensure that the actual oxygen levels are truly at the same appropriate value...

Страница 18: ...screen for each field being changed Scroll down to bring up the next page of the Modbus Settings Menu Select ENTER on PREVIOUS MENU to return the screen to the Network Menu Scroll down to PREVIOUS ME...

Страница 19: ...shold has been met Turning the setting YES will keep the transmitter relays from activating and the LEDs from changing color when the unit is in a warning Alarm Menu Selected from the Main Menu Move t...

Страница 20: ...0 HMI panels are the master The SEC3120 Modbus Network ID Modes are Legacy 3100 Mode This is not a mode that is selected directly by the user interface menus however this mode can be set by the SEC350...

Страница 21: ...he SAVE CHANGES screen for each field being changed Scroll down to the 2nd page of the Modbus Settings Menu Select ENTER on PREVIOUS MENU to return the screen to the Network Menu Scroll down to and se...

Страница 22: ...the cursor to ID and select ENTER The IDs of the sensors may be set in the range 1 254 however they cannot be set to the same value Note Be sure to assign the sensor an ID number not shared by any oth...

Страница 23: ...tible with Modicon Modbus Specification PI MBUS 300 Rev J SEC3500 HMI Panels communicate using SEC standard RS485 or default configuration parameters as shown below since they provide the most reliabl...

Страница 24: ...dbus Settings Menu Page 2 Select ENTER on PREVIOUS MENU to exit the Modbus Settings Menu and return to the Network Settings Menu Screen Scroll down to and select ENTER on PREVIOUS MENU to return to th...

Страница 25: ...by moving the cursor to COMM ALTERNATE and selecting ENTER The alternate values are 9600 baud 8 data bits no parity and 1 stop bit The following display is shown This is just an informational box to...

Страница 26: ...of 1200 2400 4800 9600 19200 and 38400 Return to the 485 bus menu and save the changes by moving the cursor to the next screen and select ENTER Scroll down to PREVIOUS MENU and select ENTER to return...

Страница 27: ...lowing screens will be displayed Once complete the SEC3120 will return to the calibration menu The sensor has been successfully zeroed if no faults are indicated ZERO CAL SENSOR ONE 1 WAIT FOR START E...

Страница 28: ...the sensor or ABORT CHANGES to return to the previous screen The Following screens are displayed To Span calibrate the sensor move the cursor to SPAN and select ENTER Apply clean air N2 for an oxygen...

Страница 29: ...erator to command the SEC3120 to reboot toggle the LEDs typically Locator Mode with alternating flashing red green alarm fault lights and toggle the individual relays on and off to verify operation Re...

Страница 30: ...lscale In the self test mode the SEC3120 outputs are fully functional The SEC3120 will display the rising gas level the 4 20 mA output will increase to 20 mA the relays will activate and the RS485 inf...

Страница 31: ...R INFO displays the information for both of the sensors 003 counts down to 000 seconds DDD Device ID for sensor 1 EEE Device ID for sensor 2 TYP Sensor type 00 is a SEC3000 32 is SEC Millennium FW Ver...

Страница 32: ...rd to start storage over The SEC3120 will continue to log data to the flash card until it reaches 100 full At that time the status will change to MC FULLNOW indicating that there is no more room to st...

Страница 33: ...vent 03 Alarm High Level Triggered Event 04 Alarm Mid Level Triggered Event 05 Alarm Low Level Triggered Event 06 Change in Gas Level 5 of Sensor Range Event 07 Sensor Fault Missing Not Identical Dete...

Страница 34: ...31 yyyy Year 2000 2099 HH Hours 24 hour format 00 23 MM Minutes 00 59 SS Seconds 00 59 S1 Literal text for sensor one S1 S2 Literal text for sensor two S2 BB Literal text for both sensors BB ID Replac...

Страница 35: ...command and control etc This requires the SEC3120 to have sequential Modbus network IDs one assigned for each physical sensor attached to it If the SEC3500 HMI or its operator attempts to Discover an...

Страница 36: ...Transmitters replacement of SEC3100 Single Digital Transmitters with SEC3120 Dual Digital Transmitters and SEC3120 Digital Transmitters that may initially start out as Single Sensor Role configuratio...

Страница 37: ...Operator Manual Page 37 of 40 P N 1580281 SEC3120 Digital Transmitter Sensor Electronics Corporation Rev 10 20150707 APPENDIX A Supplement Certification Listed Data...

Страница 38: ...Operator Manual Page 38 of 40 P N 1580281 SEC3120 Digital Transmitter Sensor Electronics Corporation Rev 10 20150707...

Страница 39: ...Operator Manual Page 39 of 40 P N 1580281 SEC3120 Digital Transmitter Sensor Electronics Corporation Rev 10 20150707...

Страница 40: ...Operator Manual Page 40 of 40 P N 1580281 SEC3120 Digital Transmitter Sensor Electronics Corporation Rev 10 20150707...

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