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SenSmart 3000 User's Manual

Document: UM-1003

Revision Level B

9

2.8

3-Wire 4-20mA Mode Installation

CAUTION

: SenSmart 3000

’s equipped with the 10-0233 I/O Power Supply board only operate as

3 or 4-wire 4-20mA transmitters and are not compatible with 2-wire intrinsically safe installations
(see sections 2.7 and 2.7a). Such units should not be combined with 10-0247IS Sensor Heads
without flame arrestors unless the area is classified as non-hazardous.

SenSmart 3000

’s equipped with the 10-0233 I/O Power Supply and 10-0234 Alarms / Modbus

option are NRTL certified as suitable for Div 1 & 2 Groups B,C,D explosion proof installations with
the 10-0247 or with any sensor head with an equivalent CSA certification.

Description:

3-wire sourcing transmitters require an additional dedicated 24 VDC wire. The 4-20mA loop
current is then delivered, or sourced, from the transmitter output and the receiver device must not
provide 24 VDC from its input terminal. When the SenSmart 3000 is equipped with the bottom
10-0233 I/O Power Supply board shown in Figure 2-5, the 2-wire 4-20mA output is disabled and
one of the 10-

0233’s 3-wire outputs must be used. TB2 terminal 2 is for ECHEM toxic / oxygen 3-

wire 4-20mA output signals and TB2 terminal 3 is for LEL 3-wire 4-20mA output signals.

Instructions:

Unscrew the cover on the SenSmart 3000 explosion-proof enclosure. Loosen the 2 thumbscrews
holding the display assembly in place and remove it. A small ribbon cable is attached with
sufficient length to allow access to the I/O PCB mounted in the bottom of the enclosure (Figure 2-
5). Power and signal connections are to TB2 where 24 VDC, Signal and Common wires must be
connected.  A blocking diode protects the SenSmart 3000 if polarity of the power supply is
reversed but it will not operate. Reassemble the SenSmart 3000. Follow the procedures and
recommendations in the receiver and power supply manuals to complete the installation.  Be sure
the SenSmart 3000 enclosure and conduit are properly grounded. Apply power and the
SenSmart 3000 should function.  Proceed to section-3.

Figure 2-5: 10-0233 I/O Power Supply / 3-Wire 4-20mA Assembly

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Содержание SENSMART 2000

Страница 1: ...Built with our Proven St 48 Transmitter PH 409 986 9800 FAX 409 986 9880 8621 Hwy 6 Hitchcock TX 77563 Website http www rcsystemsco com Warning Read understand contents of this manual prior to operation Failure to do so could result in serious injury or death Users are responsible for correct translations of this manual into their native language ...

Страница 2: ...13 3 1 Transmitter Configuration Menu 13 3 1 1 Single Dual Gas Monitor Configuration 14 3 1 2 Output Zero Output Span Trims Factory Preset Technicians only 14 3 1 3 Model Name 14 3 1 4 Real Time Clock 14 3 1 5 Backlight 14 3 2 Initial Bridge Sensor Monitor Start Up 15 3 2 1 Initial Bridge Sensor Monitor Sensor Volts Check 15 3 2 2 Initial Bridge Sensor Monitor Balance Check 15 3 2 3 Initial Bridge...

Страница 3: ...tion 29 6 2 Set Balance Set Sensor Voltage Technicians only 30 6 3 Set Gain to Unity Technicians only 31 6 4 PreAmp Gain Adjust Technicians only 31 6 5 Simple Sensor Input Type Technicians only 32 6 6 Zero Cal Value Technicians only 32 6 7 Raw Min Max Counts Technicians only 33 6 8 4 20mA Input Marker Message Technicians only 33 SECTION 7 SPECIAL ORDER CONFIGURATIONS 33 7 1 ARCTIC Option 33 7 1 1 ...

Страница 4: ... the High Alarm setpoint Do not expose the SenSmart 3000 to electrical shock or continuous severe mechanical shock Protect the SenSmart 3000 from dripping liquids and high power sprays Use only for applications described within this manual CAUTION FOR SAFETY REASONS THIS EQUIPMENT MUST BE OPERATED AND SERVICED BY QUALIFIED PERSONNEL ONLY READ AND UNDERSTAND INSTRUCTION MANUAL COMPLETELY BEFORE OPE...

Страница 5: ...target gas calibration constants and other variables required to match the SenSmart 3000 to a specific application For traditional Simple sensors without the smart interface the USB interface allows direct SenSmart 3000 configuration from a PC or a six channel SenSmart 3000 Educator device Toxic and oxygen monitors are capable of 2 wire 4 20mA operation section 2 7 when the alarms Modbus option an...

Страница 6: ...enSmart 3000 designation to ST ATEX48 ATEX certified models including sensors are supplied only with sensor head part 10 2072 and are not available with the 10 0247 sensor head or the 0010 1200 Y fitting ATEX installations must be in compliance with EN60079 14 or suitable National or international standard and all cable glands and closing devices must carry a suitable ATEX marking The ATEX label i...

Страница 7: ...losion Proof Housing with Dual Sensor Head Adaptor Modular design simplifies the installation of the SenSmart 3000 Figure 2 3 A top Display Assembly is mounted with captive thumbscrews and is easily removed to access field wiring terminals An optional 10 0234 Alarms Modbus board mounts piggyback to the back of the Display Assembly Wiring from toxic or oxygen sensors terminates at the 10 0232 Displ...

Страница 8: ... Insure correct cabling and sealing fitting practices are implemented Do not aim the sensor pointing upward Install the SenSmart 3000 to a wall or bracket using the predrilled mounting flanges with I D 0 25 on 5 5 inch centers Figure 2 2 If conduit is rigid and able to support the weight of the SenSmart 3000 the mounting bolts may be omitted CAUTION The sensor should never be installed pointing up...

Страница 9: ...sically Safe Explosion Proof Installations SenSmart 2000s equipped with 10 0247 sensor heads are NRTL Nationally Recognized Testing Lab certified as suitable for both intrinsically safe and explosion proof installations SenSmart 2000s equipped with 10 0247IS sensor heads XP flame arrestor is not installed to allow monitoring of highly reactive gases such as chlorine are NRTL certified as suitable ...

Страница 10: ...output automatically correct for polarity so positive and negative are interchangeable Reassemble the SenSmart 2000 Follow the procedures and recommendations in the receiver manual to complete the installation Be sure the SenSmart 2000 enclosure and conduit are properly grounded Apply loop power by appropriately powering the receiver device DCS PLC Controller etc and the SenSmart 2000 should funct...

Страница 11: ...SenSmart 3000 User s Manual Document UM 1003 Revision Level B 8 2 7a Installation Drawing 11 0100 ...

Страница 12: ... SenSmart 3000 is equipped with the bottom 10 0233 I O Power Supply board shown in Figure 2 5 the 2 wire 4 20mA output is disabled and one of the 10 0233 s 3 wire outputs must be used TB2 terminal 2 is for ECHEM toxic oxygen 3 wire 4 20mA output signals and TB2 terminal 3 is for LEL 3 wire 4 20mA output signals Instructions Unscrew the cover on the SenSmart 3000 explosion proof enclosure Loosen th...

Страница 13: ... Installs RS 485 Terminating Resistor B Omits RS 485 Terminating Resistor A B S A B 1 RS 485 A B terminals are connected internally for easier IN OUT cabling S is no connect for shield to continue Figure 2 6 10 0234 Alarm Relays Modbus Option Instructions Unscrew the cover on the SenSmart 3000 explosion proof enclosure Loosen the two thumbscrews holding the display assembly in place and remove it ...

Страница 14: ...TB1 P1 FUSE Assy 10 0250 1 2 3 4 Isolated 4 20mA Output Option 1 2A Figure 2 8 10 0250 Isolated 4 20mA Output Option 2 11 Sensor Installation with Smart Simple Sensor Definition Many manufacturers offer industry standard electrochemical and catalytic bead sensors for toxic oxygen and LEL combustible gas detection These are referred to as Simple sensors in this manual The SenSmart 3000 design accom...

Страница 15: ...mbly Smart Sensors are automatically recognized by the SenSmart 3000 The Smart Sensor identification screen in Figure 2 10 is shown after power up upon installation of a new smart sensor or by viewing INPUT type in the SENSOR SETTINGS INFO menu section 5 5 S MA RT S E NS OR T y p e Ca t B e a d S p a n 10 0 Z e r o 0 S N x x x x x x B o r n On 0 1 2 8 0 4 L a s t Ca l 0 4 0 5 0 4 A NY k e y t o E ...

Страница 16: ...ration Menu Figure 3 1shows the SenSmart 3000 XMITTER CONFIG menu used to activate channels precisely calibrate 4 20mA outputs and set time date Its menus are set at the factory and typically not needed by the user To access from any data display press and hold the NEXT key for 5 seconds until the screen appears requesting a special key sequence 4 UP keystrokes ...

Страница 17: ...art 3000 s final 4 20mA output Their purpose is to provide precise SenSmart 3000 4mA and 20mA outputs To trim these values attach a precision milliamp meter to the SenSmart 3000 4 20mA output being used Enter the correct OUTPUT ZERO TRIM menu shown in Figure 3 2 Use the UP DOWN keys to trim the milliamp value to 4 00mA Next enter the correct OUTPUT SPAN TRIM menu and use the UP DOWN keys to trim t...

Страница 18: ...ck Catalytic bead sensors connect to a bridge circuit that may require a balance adjustment after installation especially when the sensor is remote mounted from the SenSmart 3000 Section 6 2 describes using the LCD to read and adjust BALANCE settings Correct BALANCE setting should be confirmed after start up for locally and remotely mounted catalytic bead sensors 3 2 3 Initial Bridge Sensor Monito...

Страница 19: ...ibration quick easy and error free A successful ZERO and SPAN calibration requires only four keystrokes The 4 20mA output indicates CAL MODE by transmitting 3mA for 2 wire installations and 1 5mA for 3 wire installations It then transmits 4mA during the subsequent CAL PURGE delay to prevent external alarms during calibration Local SenSmart 3000 alarm relays if equipped are inhibited during CAL MOD...

Страница 20: ... perform a SPAN calibration WARNING The SPAN gas used must match the value specified since this is what the SenSmart 3000 will indicate after a successful SPAN calibration The Cal Span Value may be edited if it becomes necessary to apply a different gas concentration see Cal Span Value in section 5 3 5 If the SPAN calibration is successful the display flashes REMOVE CAL GAS and starts the CAL PURG...

Страница 21: ...level alarm The A3 menu is identical to A1 A2 and may be set to trip at an upscale level value A3 WILL ALSO TRIP WITH MISSING OR FAILED SENSORS REGARDLESS OF THE LEVEL VALUE CAUTION Missing or failed sensors always trip Alarm 3 and relay K3 if equipped This is true even with A3 configured as a level alarm and it must be accepted that A3 level alarm events might be caused by the monitored level or ...

Страница 22: ...vels of menu items All SETUP menu items have at least one page of sub menus Items with sub menus are indicated by the symbol right hand pointing arrow at the end of each line Edit menu items by pointing to them press the EDIT key to display the cursor press UP DOWN to change that character press NEXT to move the cursor then press EDIT again to load the new item and remove the cursor Press NEXT to ...

Страница 23: ...stem Config Menus Measurement Name may be edited to contain virtually any 16 character ASCII field It is typically used to describe the monitored point by user tag or other familiar terminology Eunits engineering units may have up to a 10 character ASCII field Many common gases have pre configured Eunits based upon the sensor type and each may be edited in this menu as described in Configuration U...

Страница 24: ...tment to make the sensor read zero at the different temperatures To prevent accidental data entry a special keystroke sequence of 4 consecutive UP keys is required to enter this menu COMP E NS A T I ON T E MP 4 0 0 C GA I N 1 0 0 0 o f f s e t 0 0 0 0 E n t e r K e y S e q u e n c e t o a c c e s s me n u NE X T k e y t o E x i t S e e Ma n u a l HE L P PRESS UP KEY 4 TIMES Figure 5 4 Temperature ...

Страница 25: ...e 10 0234 Relay Modbus option installed A L A R M S E T T I N GS A l a r m 1 A l a r m 2 A l a r m 3 F a i l R e l a y s C o n f i g A l a r m E v e n t L o g A L A R M x S E T U P S e t P o i n t 2 0 D e a d B a n d 1 ON D e l a y 0 s OF F D e l a y 0 m L o w T r i p NO L a t c h i n g NO Alarm 1 2 3 menus are identical R E L A Y C ON F I G K 1 F a i l s a f e N O K 2 F a i l s a f e N O K 2 A c ...

Страница 26: ...t when the UP RESET key is pressed from a data display 5 4 1 Relay Configuration if equipped Relay Config has the submenu shown in Figure 5 7 The optional relay PCB must be installed to access this menu or a HARDWARE NOT PRESENT message appears RE L A Y CONF I G K 1 F a i l s a f e NO K 2 F a i l s a f e NO K 2 A c k n o wl e d g e NO K 2 Re f r e s h Of f K 3 a l wa y s F a i l s a f e Figure 5 7...

Страница 27: ...ensors and this menu is therefore not available with a smart sensor connected Recall Cal History recalls each successful calibration These dates may be reviewed by scrolling with the UP DOWN keys Input Type indicates what kind of input or sensor the SenSmart 3000 is configured to accept and is typically pre configured at the factory There are five Input Type possibilities consisting of bridge EC n...

Страница 28: ...ping of alarm relays if equipped without tripping alarm set points with the target gas This is useful for testing alarms events such as lights and audible devices WA RNI NG A l a r m p r o c e s s i n g wi l l b e h a l t e d d u r i n g d i a g n o s t i c mo d e E DI T t o c o n t i n u e A n y o t h e r k e y t o e x i t D I A GNOS T I CS Ou t p u t S t i mu l a t i o n Re l a y T e s t OU T P ...

Страница 29: ...n 2 Alarm 1 2004 2 NA Chan 2 Alarm 2 2005 2 NA Chan 2 Fault 2006 2 NA K1 2007 2 NA K2 2008 2 NA K3 2009 2 NA Chan 1 Cal Mode 2010 2 NA Chan 2 Cal Mode 2011 2 NA Read Write Coils Alarm Ack Reset 12001 1 5 Note After writing a TRUE to this register it resets back to FALSE automatically Read Only Registers D2A Raw Chan 1 31001 4 NA D2A Raw Chan 2 31002 4 NA Calibrated 10 bit value representing the D2...

Страница 30: ...s word bit assignment for system status CHAN_1_ACTIVE BIT0 CHAN_2_ACTIVE BIT1 SECURE_LEVEL BIT2 MARKER Tx LED BIT3 K1_FAILSAFE BIT12 K2_FAILSAFE BIT13 K2_ACK BIT14 LOCK BIT15 Chan 1 Sensor Life 31009 4 NA Chan 2 Sensor Life 31010 4 NA 16 bit signed integer ranging from 1 to 100 where 1 indicates Cal Required Chan 1 Sensor Temperature 31011 4 NA Chan 2 Sensor Temperature 31012 4 NA 16 bit integer r...

Страница 31: ...resents float value without the decimal point such as 123 4 is returned as 1234 Decimal Divisor is returned as 1 10 100 or 1000 for decimal position of 1 2 3 or 4 where 123 4 would return the value 10 Chan 1 Cal Zero Real 41001 3 NA Chan 1 Cal Zero Divisor 41002 3 NA Chan 1 Cal Span Real 41003 3 NA Chan 1 Cal Span Divisor 41004 3 NA Chan 1 Zero Real 41005 3 NA Chan 1 Zero Divisor 41006 3 NA Chan 1...

Страница 32: ...CURITY The SYSTEM SECURITY menu offers two levels of protection A LOW level allows CAL MODE sensor calibrations but requires the 4 digit Pass Code prior to altering menus HIGH level locks the entire menu database and the CAL Mode until the correct Pass Code is entered LOW and HIGH security levels always allow viewing of configuration menus but they may not be changed Contact Name is a 12 character...

Страница 33: ...n t s 10 11 R e a d i n g 10 0 U p D n t o C h a n g e N e x t t o e x i t S E L E C T I N P U T C a t B e a d 3 Wi r e U P D OWN t o c h a n g e E D I T t o s e l e c t N E X T t o e x i t SENSOR BALANCE SENSOR VOLTAGE menus are only active when input type Cat Bead 3 Wire S E L E C T E U NI T S EDIT L E L C u s t o m S e t B a l a n c e S e t S e n s o r V o l t a g e S e t Ga i n t o UN I T Y P ...

Страница 34: ...SET to zero and GAIN to one This is the definition of UNITY A calibration should be performed after setting UNITY WA RNI NG P r e v i o u s Ca l i b r a t i o n wi l l b e e r a s e d E DI T t o c o n f i r m NE X T t o e x i t Ga i n Un i t y EDIT Figure 6 4 Set UNITY GAIN Menu 6 4 PreAmp Gain Adjust Technicians only Depending upon Input Type SenSmart 3000 inputs range from a few micro amps to hu...

Страница 35: ...y be accepted by pressing the EDIT key or changed by moving the pointer to Custom and editing as described in Configuration Using the Magnetic Wand in section 5 2 S E L E CT I NP UT Ca t B e a d 3 Wi r e UP DOWN t o c h a n g e E DI T t o s e l e c t NE X T t o e x i t S E L E CT E UNI T S EDIT L E L Cu s t o m Figure 6 6 Input Type Selection Menu Coefficient Electrochemical Sensor Type Default EU...

Страница 36: ...e 10 0233 Power Supply PCB Figure 2 5 In addition when equipped with a locally mounted 10 0247 Smart Sensor Head Figure 2 9 ARCTIC Smart sensors are available with a 1 watt heater temperature controller for warming the sensor compartment This is important since many electrochemical sensors have a low temperature rating of only 20C If incoming 10 30VDC power is at least 24VDC the ARCTIC option exte...

Страница 37: ...s requiring 18VAC as primary power instead of the standard 10 30VDC Order I O Power Supply part 10 0233 18VAC 18VAC is applied to a bridge rectifier and filter capacitor to generate unregulated 24VDC The 10 0233 18VAC revision is also configured to accept 4 20mA inputs from 2 or 3 Wire 4 20mA Transmitters into terminals normally reserved for Bridge Sensors References to Bridge sensors within the m...

Страница 38: ...put and Output See Block Wiring diagram I V Amplifier TB1 3 2 1 10ohm R13 Amplifier V I TB2 3 2 1 A D Transmitter 2 Wire 3 Wire 4 20mA Input 24VDC Common Neg 24VDC Output 4 20mA Unregulated 5 Watt D A Microcontroller 4 20mA OUTPUT Wiring Monitor Field 18VAC 4 20mA OUTPUT Pos 18VAC Bridge Rectifier Filter Capacitor Supply board with I O Power 18VAC Power Input Order 10 0233 18VAC 1 2 3 1 2 3 4 4 El...

Страница 39: ...atbead Order 10 0233 4 20mA 1 2 3 1 2 3 4 4 Electrochemical 4 20mA OUTPUT 24VDC Common 24VDC Figure 7 3 10 00233 4 20mA Block Wiring Diagram 7 3 1 4 20mA Input Marker Message Technicians only Important SenSmart 3000 Input Marker menus are available only with special 4 20mA input configurations described in sections 7 2 and 7 3 of this manual and when the Input Type menu setting is 4 20mA 3 Wire se...

Страница 40: ...he LCD readout in Figure 7 5 when 1 5mA is the 4 20mA input In this example the SenSmart 3000 4 20mA output will also transmit a 1 5mA marker signal Me a s u r e me n t Na me I N CA L 0 Figure 7 5 4 20mA Input Type MARKER Message SECTION 8 Millenium Sensor Calibration The R C Systems Inc MILLENIUM is factory calibrated zeroed and spanned Unlike catalytic sensors it does not require routine span ga...

Страница 41: ...ition If after 20 seconds the calibration lead has not been removed from common the R C Systems Inc MILLENIUM will ignore the signal and continue operation as normal The R C Systems Inc MILLENIUM can be spanned in the field if the customer wishes to change the target hydrocarbon gas Please contact factory for additional equipment information and pricing for R C Systems Inc PC IR Link Package SenSm...

Страница 42: ...00 User s Manual Document UM 1003 Revision Level B 39 REVISION HISTORY Revision 3 4 3 27 2012 Update Sections 3 1 4 3 1 5 5 3 5 10 and added Revision History page Revision 3 5 4 18 2013 Update Figures 2 2 and 2 2a ...

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