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Chapter 4 Serial Communications 

Sierra 240/241 Instruction Manual

 

4-22 

IM-240

 

 

The unit responds with an identical message to that transmitted, and the 
totalizer is reset. If the “coil” is turned off as in the following message, 
the response is also identical to the transmitted message, but the totalizer 
is not affected.  

01 05 00 00 00 00 CD CA 

 

01 Device address 
05 Function code 5 = write single coil 
00 00 Coil address = 0 

00 00 Data to “turn off coil” does n

ot reset totalizer 

CD CA CRC 
 

  

Содержание INNOVA-MASS 240-VT

Страница 1: ...eries Instruction Manual Table of Contents IM 240 0 1 240 241 Series Vortex Volumetric and Mass Flow Meters Models 240 V VT VTP LP 241 V VT VTP LP Cryogenic Instruction Manual Document Number IM 240 R...

Страница 2: ...le for any damage or personal in jury whatsoever resulting from the use of Sierra Instruments standard mass flow meters for oxygen gas You are responsible for cleaning the mass flow meter to the degre...

Страница 3: ...ed Flow Requirements 2 2 240 In Line Flow Meter Installation 2 3 Wafer Style Flow Meter Installation 2 4 Flange Style Flow Meter Installation 2 5 241 Insertion Flow Meter Installation 2 6 Cold Tap Gui...

Страница 4: ...2 Fluid Menu 3 13 Units Menu 3 14 Time and Date Menu 3 15 Diagnostics Menu 3 16 Calibration Menu 3 17 Password Menu 3 18 Chapter 4 Serial Communications HART Communications 4 1 Wiring 4 2 HART Command...

Страница 5: ...s 1 6 2 1 Recommended Pipe Length Required for Installation 2 2 2 2 Flange Bolt Torquing Sequence 2 3 2 3 Wafer Style Flow Meter Installation 2 4 2 4 Flange Style Flow Meter Installation 2 5 2 5 Hot T...

Страница 6: ...Output Using Input Power Supply 2 31 2 37 Isolated Pulse Output Using Meter Power Sup AC only 2 31 2 38 Isolated Alarm Output Using External Power Supply 2 32 2 39 Non Isolated Alarm Output Using Mete...

Страница 7: ...your local code when wiring this unit to a power source Failure to do so could result in injury or death All AC power connections must be in accordance with published CE directives All wiring proce d...

Страница 8: ...4 20 mA output signal offers your choice of volumetric or mass flow rate Mass flow rate is based on a constant value for fluid density stored in the instrument s memory Both the mass and volumetric f...

Страница 9: ...ibutor Remove the packing slip and check that all ordered compo nents are present Make sure any spare parts or accessories are not dis carded with the packing material Do not return any equipment to t...

Страница 10: ...ortices created by the shed der bar Temperature is measured using a platinum resistance tempera ture detector PRTD Pressure measurement is achieved using a solid state pressure transducer All three el...

Страница 11: ...surable Therefore the volume encompassed by each vortex remains constant as shown below By sensing the number of vortices passing by the velocity sensor the InnovaMass flow meter computes the total fl...

Страница 12: ...241 insertion meters is negligible The pressure drop for 240 Series in line meters is defined as P 00024 V2 English units P in psi in lb ft3 V in ft sec P 000011 V2 Metric units P in bar in kg m3 V i...

Страница 13: ...4 10 Linear range Rey nolds Number Re Strouhal Number St 10 5 10 10 8 10 6 10 7 5000 Corrected range Figure 1 3 Reynolds Number Range for the InnovaMass Temperature Measurement InnovaMass Flow Meters...

Страница 14: ...e velocity temperature and pressure sensor are located within this tube just downstream of a built in shedder bar This entire assembly is called the insertion sensing head It fits through any entry po...

Страница 15: ...sing may be used indoors or outdoors including wet environments Available input power options are DC loop powered 2 wire DC powered or AC powered Three analog output signals are available for your cho...

Страница 16: ...Safe and convenient access with adequate overhead clear ance for maintenance purposes 4 Verify that the cable entry into the instrument meets the specific standard required for hazardous area installa...

Страница 17: ...flow meter using the recommended number of straight run pipe diameters upstream and downstream of the sensor Note For liquid applications in vertical pipes avoid installing with flow in the downward...

Страница 18: ...ompatible with the process fluid and pressure ratings of the specific installation Verify that the inside diameter of the gasket is larger than the inside diameter of the flow meter and adjacent pipin...

Страница 19: ...ng neck This ensures that the sensor head is positioned downstream of the vortex shedder bar and is correctly aligned to the flow Installing the meter opposite this direction will result in completely...

Страница 20: ...ronics enclosure To adjust the viewing angle of the enclosure or dis play keypad see page 2 18 and 2 19 Figure 2 4 Flange Style Flow Meter Installation When installing the meter make sure the flange m...

Страница 21: ...ping instructions are general in nature and intended for guideline purposes only Before installing the me ter review the mounting position and isolation value requirements given below Mounting Positio...

Страница 22: ...nsor assembly when inserting into the pipe 5 After cutting measure the thickness of the cut out and record this number for calculating the insertion depth 6 Weld the flow meter pipe con nection on the...

Страница 23: ...s in diameter 5 Run a static pressure check on the welds If pressure loss or leaks are detected repair the joint and re test 6 Connect the hot tapping equipment to the isolation valve open the isolati...

Страница 24: ...Instruction Manual Chapter 2 Installation IM 240 2 9 Connect isolation valve and test for leaks xxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxx Purge pipe Figure 2...

Страница 25: ...on is used with most flow meter process connections The length S of the stem is 29 47 inches Compact Probe configuration is used with compression fitting process connections The length S of the stem i...

Страница 26: ...tended F Distance from the raised face of the flange or top of NPT stem housing to the outside of the pipe wall R Pipe inside diameter 2 for pipes ten inches and smaller R Five inches for pipe diamete...

Страница 27: ...es 4 Hold the meter securely while loosening the compression fitting In sert the sensor into the pipe until the calculated insertion length I is measured between the base of the enclosure adapter and...

Страница 28: ...inches t Thickness of the pipe wall Measure the disk cut out from the tapping procedure or check a piping hand book for thickness Figure 2 8 Insertion Calculation Meters with Insertion Tool Example 1...

Страница 29: ...alignment pointer Align the sensor head using the sensor alignment pointer Adjust the alignment pointer parallel to the pipe and pointing downstream Tighten the stem lock bolt to secure the sensor po...

Страница 30: ...nuts 4 Loosen the two packing gland nuts Loosen the stem lock bolt adja cent to the sensor alignment pointer Align the sensor head using the sensor alignment pointer Adjust the alignment pointer paral...

Страница 31: ...on Length Formula I S F R t Where I Insertion length S Stem length the distance from the cen ter of the sensor head to the base of the enclo sure adapter S 29 47 inches for standard probes S 41 47 inc...

Страница 32: ...packing gland nuts 3 Align the sensor head using the sensor alignment pointer Adjust the alignment pointer parallel to the pipe and pointing downstream 4 Insert the sensor head into the pipe until ins...

Страница 33: ...y sensitive Wear a grounding wrist strap and make sure to observe proper handling precautions required for static sensitive components To adjust the display 1 Disconnect power to the flow meter 2 Loos...

Страница 34: ...Adjustment To avoid damage to the sensor wires do not rotate the enclosure beyond 180 degrees from the original position To adjust the enclosure 1 Remove power to the flow meter 2 Loosen the three se...

Страница 35: ...ements If conduit seals are used they must be installed within 18 inches 457 mm of the enclosure LOOP POWER FREQ OUT PULSE OUT OPTIONAL BACKLIGHT POWER Figure 2 14 Loop Power Wiring Terminals Input Po...

Страница 36: ...perate correctly The maximum loop resistance load for the current loop output is de pendent upon the supply voltage and is given in Figure 2 16 The 4 20 mA loop is optically isolated from the flow met...

Страница 37: ...lay is a normally open single pole relay The relay has a nominal 200 volt 160 ohm rating This means that it has a nominal on resistance of 160 ohms and the largest voltage that it can withstand across...

Страница 38: ...utput is isolated from the meter electronics and pow er supply Freq Out Freq Out Freq Out voltage V Select resistor so that current through Freq Out 40 mA Figure 2 19 Isolated Frequency Output Using E...

Страница 39: ...Remove both glands and install appropriate conduit entry glands and conduit The cable entry device shall be of a certified flameproof type suitable for the conditions of use and correctly installed Th...

Страница 40: ...SSURE TEMPERATURE RED 2 SHLD 1 2 BLK 2 SHIELD SHIELD SENSOR V2 SHIELD SENSOR V1 VORTEX BLK 1 PWR S1 E1 S2 T2 T1 T3 E2 T4 GND RED 1 P3 P1 P2 P4 SHLD 3 4 SHLD 5 6 RED 6 BLK 6 BLK 5 RED 5 BLK 3 BLK 4 RED...

Страница 41: ...ULSE OUT NEUT FREQ OUT ALARM 1 4 OPTION 1 1 2 3 1 5 2 3 ALARM 3 4 5 Figure 2 24 AC Wiring Terminals Input Power Connections To access the wiring terminal blocks locate and loosen the small set screw w...

Страница 42: ...UT FREQ OUT ALARM 1 4 OPTION 1 1 2 3 1 5 2 3 ALARM 3 4 5 Figure 2 26 DC Wiring Terminals DC Power Wiring The DC power wire size must be 20 to 10 AWG with the wire stripped 1 4 inch 7 mm Connect 18 to...

Страница 43: ...nce load for the current loop output is depend ent upon the supply voltage and is given in Figure 2 26 The 4 20 mA loop is optically isolated from the flow meter electronics Rload is the total resista...

Страница 44: ...there are current and power specifications that must be ob served The output can conduct a current up to 40 mA and can dissipate up to 200 mW The output is isolated from the meter electronics and pow...

Страница 45: ...50 millisecond square pulse The pulse output optical relay is a normally open single pole relay The relay has a nominal 200 volt 160 ohm rating This means that it has a nominal on resistance of 160 o...

Страница 46: ...third configuration if you have an AC powered unit only In any case the voltage of the pulse output is the same as the voltage supplied to the circuit AC or DC powered meters Figure 2 35 Isolated Pul...

Страница 47: ...tely There are three connection options for the alarm output the first with a sep arate power supply Figure 2 33 the second using the flow meter power supply Figure 2 34 DC powered units only and the...

Страница 48: ...emove both glands and install appropriate conduit entry glands and conduit The cable entry device shall be of a certified flameproof type suitable for the conditions of use and correctly installed The...

Страница 49: ...a few In any case the wiring diagram will be included with the meter if any of the op tions are specified Otherwise the optional terminal blocks will be left blank and non functional Option2 Option1...

Страница 50: ...5 Power Ext 4 20 mA Input Device External Figure 2 43 External 4 20 mA Input Wiring External Power Supply Follow the above diagram to wire the external 4 20 mA input into the flow meter using an exte...

Страница 51: ...nal 4 20 mA input into the flow meter using power from the 24 VDC output of an AC powered me ter Optional Contact Closure Input Wiring Option2 Option1 1 2 3 4 5 1 2 3 4 5 Figure 2 46 Optional Contact...

Страница 52: ...see the following pages for instructions on using the setup menus Flow Meter Display Keypad The flow meter s digital electronics allow you to set adjust and monitor system parameters and performance A...

Страница 53: ...r completing the self test sequence the Run Mode screens appear 3 The Run Mode displays flow information as determined by system settings Some screens depicted on the next page may not be dis played b...

Страница 54: ...Setup Menus Password Mass Flow Rate Volume Flow Rate Temperature Pressure Density Total Alarm 1 Status Fluid ENTER Date Time Alarm 2 Status Alarm 3 Status Run Mode Screens Energy ENTER Press Exit to...

Страница 55: ...ume Flow Unit Temperature Unit Density Unit Pressure Unit Set Time Set Date Sim Vor Freq Sim Temp 1 2 Sim Pressure Highest Velocity Highest Temp 1 2 Highest Pressure Lowest Int Temp Meter Size or Pipe...

Страница 56: ...o continue 3 Use the Setup Menus described on the following pages to customize the multi parameter features of your InnovaMass Flow Meter The entire lower display line is available for entering parame...

Страница 57: ...A xxxx xxxx 4 mA xxxx xxxx 4 mA xxxx xxxx 20mA xxxx xxxx 20mA xxxx xxxx 20mA xxxx xxxx Time Const Sec xxxx Time Const Sec xxxx Time Const Sec xxxx Modbus Order 0 1 2 3 1 0 3 2 2 3 0 1 Comm Protocol Mo...

Страница 58: ...the denominator Press the key until hr appears in the denominator Press ENTER to select 4 Press key until Units Menu appears Second set the analog output 1 Use keys to move to the Output Menu 2 Press...

Страница 59: ...sec 1 TC Display Time constant used to smooth display E Energy Energy EMS Meters Only Use keys to access menus Use the Display Menu to set the cycle time for automatic screen sequencing used in the Ru...

Страница 60: ...sing the keys until Alarm 1 appears The lower line displays the mass flow rate at which the alarm activates Note all outputs are disabled while using the Setup Menus First set the desired units of mea...

Страница 61: ...pulse every second Example for Setting the Totalizer The following shows how to set the totalizer to track mass flow in kg sec All outputs are disabled while using the Setup Menus First set the desire...

Страница 62: ...11 Totalizer 2 Menu Password ENTER Use keys to access menus Totalizer Menu ENTER Run Mode Totaling Inactive Mass Volume Energy Reset Total YES or NO Use the Totalizer 2 to Monitor Flow or Energy Note...

Страница 63: ...e Outgoing Energy As above you must properly configure the meter in the Energy Menu 1 Loc in Sent Flow Select Yes or No based on where the meter is located Refer to the above table 2 Heating System Se...

Страница 64: ...gen Density xxxx AL xxxx BL xxxx Select Steam T P Comp for VT and in the run mode screens Sat Steam T Comp for the fluid type VTP models The VT model will display For a V model in any fluid enter nomi...

Страница 65: ...Chapter 3 Operation Sierra 240 241 Series Instruction Manual 3 14 IM 240 Mole Weight lbm lbm mol CRIT PRESS psia CRIT TEMP R Density Kg m3 and Viscosity cP centipoise...

Страница 66: ...r 4inH20 4mmH2O Density Unit lbm ft3 kg m3 gm cc lbm gal gm mlit kg lit gm lit lbm in3 MilG Million gallons Imperial gallon 1 20095 US gallons bbl barrels 42 US gallons MilL Million liters 4inH2O and...

Страница 67: ...time For example 1 00 PM is entered as 13 00 00 in the Set Time menu Example for Setting the Time How to set the time to 12 00 00 You can check the time in the Run Mode by pressing the keys until the...

Страница 68: ...re Use the Diagnostics Menu to simulate operation and review the system files The system log files contain time date stamped messages including power on power off programming time outs parameter fault...

Страница 69: ...eter Factor xxxx Vortex Coef Ck xx Low Flow Cutoff xx Serial Number xxxxxxxxx Series M22 meter size Series M23 pipe internal diameter inches Meter calibration constant Series M22 pulses ft3 Series M23...

Страница 70: ...Manual Chapter 3 Operation IM 240 3 19 Password Menu Password ENTER Use keys to access menus Password Menu Set Password 1234 ENTER Run Mode Use the Password Menu to set or change the system password...

Страница 71: ...ed on 4 20 mA Output 1 Point to point analog digital and multi drop digital only modes are supported Wiring The diagrams below detail the proper connections required for HART communications Loop Power...

Страница 72: ...S485 RS485 GND OPTION 2 ALARM 2 PULSE OUT FREQ OUT ALARM 1 4 OPTION 1 1 2 3 1 5 2 3 ALARM 3 4 5 Figure 4 2 DC Powered Meter Wiring HART AC Powered Meter Wiring R load 250 ohm minimum Remote Connection...

Страница 73: ...power model shown To activate Multi drop mode put a device ID of 1 to 15 in the Dev id menu 0 is point to point mode This fixed the 4 20 ma output to 4 ma Typically DC power for the loop is provided...

Страница 74: ...Ck Value 3 Lo Flo Cutoff 4 RTD1 Ro 5 RTD1 alpha 6 RTD1 beta 7 RTD2 Ro 8 RTD2 alpha 9 RTD2 beta Pcal B00 Pcal B01 Pcal B02 Pcal B10 Pcal B11 Pcal B12 Pcal B20 Pcal B21 Pcal B22 Ref Resistance Internal...

Страница 75: ...4 PV rnge 5 Apply values 6 PV Rnge unit 7 PV LRV 8 PV URV 9 PV AO1 Lo end pt PV AO1 Hi end pt PV AO1 Added damp 1 SV is 2 SV AO2 Out 3 SV 4 SV rnge 5 Apply values 6 SV Rnge unit 7 SV LRV 8 SV URV 9 SV...

Страница 76: ...s AGA8 Real Gas Other Gas Liquified Gas Other Liquid Density Viscosity Coef AL Viscosity Coef BL Mol Weight Crit Press Crit Temp Compressibility AL BL Density 60F API K0 API K1 API AL API BL AGA Ref T...

Страница 77: ...D 7 Max Press 1 Temp 2 Sim Temp 3 RTD1 4 RTD1 AtoD 5 Max temp 6 Temp 2 7 Sim Temp 2 8 RTD2 9 RTD2 AtoD Max temp 2 From Online Menu Diagnostics Menu 1 Status group 1 2 Status group 2 3 Status group 3 S...

Страница 78: ...n 5 Damp 6 Snsr s n 7 Sim Temp 8 Maximum 9 Temp Diag 1 RTD1 Ro 2 RTD1 alpha 3 RTD1 beta 4 RTD2 Ro 5 RTD2 alpha 6 RTD2 beta 1 Vtx Freq 2 Sim Vtx Freq 3 Vtx AtoD 4 Filter Set 5 Gain Set 6 Re 7 Vel 8 Max...

Страница 79: ...USL 1 Universal Rev 2 Fld dev Rev 3 Software Rev 1 4 mA 2 20 mA 3 Other 4 End 1 Apply Values 2 Enter Values 1 4 mA 2 20 mA 3 Exit 1 PV LRV 2 PV URV 3 PV USL 4 PV LSL 1 Sensors 2 Signal Condition 3 Ou...

Страница 80: ...limit 1 3 3 4 PV USL View Primary variable lower sensor limit 1 3 4 1 Distributor N A Not used 1 3 4 2 Model N A Not used 1 3 4 3 Dev id View Device identification 1 3 4 4 Tag Edit Tag 1 3 4 5 Date Ed...

Страница 81: ...butor N A Not used 1 4 4 2 Model N A Not used 1 4 4 3 Dev id View Device identification 1 4 4 4 Tag Edit Tag 1 4 4 5 Date Edit Date 1 4 4 6 Write Protect View Write protect 1 4 4 7 Descriptor Edit Vor...

Страница 82: ...ments The following documents are available online from www modbus org Modbus Application Protocol Specification V1 1 Modbus Over Serial Line Specification Implementation Guide V1 0 Modicon Modbus Pro...

Страница 83: ...ting pin RS 485 GND GND G SC Reference 4 20 mA 3 4 20 mA 1 DC PWR 4 20 mA 2 RS485 RS485 RS485 GND OPTION 2 ALARM 2 PULSE OUT FREQ OUT ALARM 1 4 OPTION 1 1 2 3 1 5 2 3 ALARM 3 4 5 Figure 2 DC Wiring Te...

Страница 84: ...is 1 non standard or 2 When changing the protocol the change is made as soon as the Enter key is pressed Modbus Units The Modbus Units menu is to control what units where applicable the meter s varia...

Страница 85: ...200 38400 57600 and 115200 The default baud rate is 19200 baud Depending upon the Modbus protocol selected data are transmitted in 8 bit data frames with even or odd parity and 1 stop bit or no parity...

Страница 86: ...filter setting are accessible via the Modbus protocol Long integer and floating point numbers are accessed as pairs of 16 bit registers in the register order selected in the Modbus Order menu Floating...

Страница 87: ...le with the energy meter firmware Registers Variable Data type Units Function Code Addresses 30527 30528 Totalizer 2 unsigned long display units 03 04 526 527 32043 32048 Totalizer 2 units string 03 0...

Страница 88: ...e which is defined as follows This byte may be cleared by setting coil register 00003 function code 5 address 2 data 0xff00 Bit s Definition 0 1 Byte order see Modbus Order on page 2 0 3 2 1 0 1 2 3 0...

Страница 89: ...n code with the most significant bit set and the data field will contain the exception code byte as follows If the first byte of a message is not equal to the unit s Modbus address if the unit detects...

Страница 90: ...0F 01 Device address 04 Function code 04 read input register 00 00 Starting address 00 0C Number of registers 12 F0 0F CRC A typical response from the device is as follows note these are the older reg...

Страница 91: ...indicates error response 02 Exception code 2 invalid data address C2 C1 CRC Request the state all three alarms 01 02 00 00 00 03 38 0B 01 Device address 02 Function code 2 read discrete inputs 00 00 S...

Страница 92: ...ed and the totalizer is reset If the coil is turned off as in the following message the response is also identical to the transmitted message but the totalizer is not affected 01 05 00 00 00 00 CD CA...

Страница 93: ...esponding to a data request from a master device Baud Rates on the MS TP Bus An MS TP bus can be configured to communicate at one of four different baud rates It is very important that all of the devi...

Страница 94: ...00 and 38 400 baud rates b MAC address range is 0 127 Supported BACnet Objects A BACnet object represents physical or virtual equipment information as a digital input or parameters The 240 241 Series...

Страница 95: ...l Version 1 Protocol Revision 4 Protocol Services Supported F F F F F F F F F F F F T F T T T T F F F F F F F F F F F F T T F F F F F Protocol Object Types Supported T F F T F T F F T F F F F F F F F...

Страница 96: ...ut Object Vortex Mass Flow Meters Analog Input type objects are described in the below Table Object Instance Object Name Unit Description 1 Volume Flow cubic feet per second cubic feet per minute us g...

Страница 97: ...kilograms per minute kilograms per hour pounds mass per minute pounds mass per hour tons per hour grams per second grams per minute If Totalizer selection for Volume measure cubic feet per second cub...

Страница 98: ...value of the scaled frequency output 15 Flow Velocity feet per second This Object indicates the fluid velocity 16 Viscosity centipoises This Object indicates the fluid viscosity 17 Frequency hertz Thi...

Страница 99: ...ed for alarms that are either disabled or inactive 2 Alarm2 3 Alarm3 4 External This object is an external bit input which can be used for numerous tasks such as resetting a totalizer This Object is o...

Страница 100: ...tandardized Device Profile Annex L BACnet Operator Workstation B OWS BACnet Advanced Operator Workstation B AWS BACnet Operator Display B OD BACnet Building Controller B BC BACnet Advanced Application...

Страница 101: ...rty Execute Write Property Execute Read Property Multiple Execute Write Property Multiple Execute Who Is Execute I Am Initiate Who Has Execute I Have Initiate Device Communication Control Execute Segm...

Страница 102: ...able Additional Writable Properties Range Restrictions Analog Input AI No No None None Binary Input BV No No None None Binary Value No No None None Device No No None None Standard Object Types Suppor...

Страница 103: ...Channel 1 4 20mA F F F F Normal False AI12 Channel 2 4 20mA F F F F Normal False AI13 Channel 3 4 20mA F F F F Normal False AI14 Scaled Freq F F F F Normal False AI15 Flow Velocity F F F F Normal Fals...

Страница 104: ...Is static device binding supported This is currently necessary for two way communication with MS TP slaves and certain other devices Yes No Networking Router Clause 6 List all routing configurations...

Страница 105: ...cating support for multiple character sets does not imply that they can all be supported simultaneously ANSI X3 4 IBM Microsoft DBCS ISO 8859 1 ISO 10646 UCS 2 ISO 10646 UCS 4 JIS C 6226 If this produ...

Страница 106: ...S TP Master Slave Token passing a twisted pair RS485 network created by BACnet BIBB BACnet Interoperability Building Block Specific individual function blocks for data exchange between interoperable d...

Страница 107: ...second level Press EXIT to move from the second level back to the first press EXIT while in the first level to return to the setup menus Caution password 16363 will allow full access to the configura...

Страница 108: ...ter Type A2D Ref Resistor 2700 Min Delta H 1 Energy EMS Meters Only A3 A4 Rtd2 x x Pe v 0 0 Pv v 0 0 Std 1 000 Nrml 1 000 Visc xxxx Cp x Cnts Ext x xxx mA Iso Power Volts x x vdc 4 20 1 Fscale 4 20 2...

Страница 109: ...Kc It Kb Profile equation factory use only Model 241 only V Calculated average pipe velocity ft sec Re Calculated Reynolds number RTD1 Resistance value of integral RTD in ohms RTD2 Optional RTD resis...

Страница 110: ...izer is accumulating faster than the pulse output hardware can function The queue will allow the pulses to catch up later if the flow rate decreases A better practice is to slow down the totalizer pul...

Страница 111: ...ero Scale Same as above but for the 4 mA point Alarm 1 Test Used as a test to verify that the alarm circuit is functioning When low is selected the alarm will initiate a low alarm on the output When H...

Страница 112: ...only Calibration Mode Factory use only A2D Ref Resistor Factory use only Pressure Cal Current Calibration value for the electronics and pressure transducer combination Consult Factory for value Pressu...

Страница 113: ...ect a DVM in series with the output loop Select zero or full scale from the second level of the hidden diagnostics and then actuate the enter key twice This action will cause the meter to output its 4...

Страница 114: ...Depth Correct Insertion style meter Power and Wiring Correct Application Fluid Correct Meter Range Correct for the Application Meter Configuration Correct Describe Installation Geometry i e upstream d...

Страница 115: ...no flow Symptom Erratic Output 1 The flow rate may be too low just at the cutoff of the meter range and the flow cycles above and below the cutoff making an erratic output Consult the factory if neces...

Страница 116: ...ow TC Time Constant 4 The vortex coefficient Ck may be incorrectly set The Ck is a value in the equation used to determine if a frequency represents a valid vortex signal given the fluid density and s...

Страница 117: ...eld and wire number 2 Turn on the pressure and temperature display in the Display Menu and verify that the pressure and temperature are correct 3 Using ESD precautions and hazardous area precautions r...

Страница 118: ...plays Temperature Fault 1 For remote mounted electronics carefully check all the wiring connections in the remote mount junction box There are 18 connections that must be correct verify each color bla...

Страница 119: ...d red shield and wire number 2 Using ESD precautions and hazardous area precautions remove the electronics enclosure window cover Disconnect the pressure sensor from the electronics stack or the remot...

Страница 120: ...rs off of the circuit boards 4 Locate and loosen the small set screw which locks the smaller enclosure cover in place Unscrew the cover to expose the field wiring strip Tag and remove the field wires...

Страница 121: ...ucers are traceable to NIST Standards Sierra is ISO 9001 registered and conforms to the requirements of ANSI NCSL Z540 and ISO IEC Guide 25 Instructions for Returning Your Instrument for Service The f...

Страница 122: ...quired describe the symptoms as accurately as possible on the RMA form Pack your instrument carefully Use the original packaging and foam or bubble wrap packing peanuts NOT recommended and include a c...

Страница 123: ...Sierra 240 241 Series Instruction Manual Appendix A Specifications IM 240 A 1 Appendix A Product Specifications...

Страница 124: ...Appendix A Specifications Sierra 240 241 Series Instruction Manual A 2 IM 240...

Страница 125: ...Sierra 240 241 Series Instruction Manual Appendix A Specifications IM 240 A 3...

Страница 126: ...Appendix A Specifications Sierra 240 241 Series Instruction Manual A 4 IM 240...

Страница 127: ...Sierra 240 241 Series Instruction Manual Appendix A Specifications IM 240 A 5...

Страница 128: ...Appendix A Specifications Sierra 240 241 Series Instruction Manual A 6 IM 240...

Страница 129: ...Sierra 240 241 Series Instruction Manual Appendix A Specifications IM 240 A 7...

Страница 130: ...Appendix A Specifications Sierra 240 241 Series Instruction Manual A 8 IM 240...

Страница 131: ...Sierra 240 241 Series Instruction Manual Appendix A Specifications IM 240 A 9...

Страница 132: ...Appendix A Specifications Sierra 240 241 Series Instruction Manual A 10 IM 240...

Страница 133: ...Sierra 240 241 Series Instruction Manual Appendix A Specifications IM 240 A 11...

Страница 134: ...Appendix A Specifications Sierra 240 241 Series Instruction Manual A 12 IM 240...

Страница 135: ...Sierra 240 241 Series Instruction Manual Appendix A Specifications IM 240 A 13...

Страница 136: ...2007 Electrical Apparatus for explosive gas atmospheres Flameproof enclosures d EN 61241 0 2006 IEC 61241 0 2004 EN IEC 61241 1 2004 Directive 94 9 EC 1994 Equipment Intended for use in Potentially Ex...

Страница 137: ...61010 1 2004 Safety requirements for electrical measuring control and laboratory devices Pressure Equipment Directive 97 23 EC AD 2000 Merkbl tter Regulations for pressure vessel calculations Explosio...

Страница 138: ...Meter Calculations Volume Flow Rate Mass Flow Rate Flowing Velocity Where A Cross sectional area of the pipe ft 2 f Vortex shedding frequency pulses sec K Meter factor corrected for thermal expansion...

Страница 139: ...Flowing Velocity Volume Flow Rate Mass Flow Rate Where A Cross sectional area of the pipe ft 2 f Vortex shedding frequency pulses sec Kc Meter factor corrected for Reynolds Number pulses ft Qv Volume...

Страница 140: ...the formula given by Keenan and Keys The given equation is for the volume of the steam B p T v 04 555 4 12 12 3 13 0 3 3 2 4 0 1 2 0 0 p g B p g B p g B B B 2 80870 0 10 62 2641 89 1 B 2 5 1 10 6246 1...

Страница 141: ...ty and Ro are known and are stored in a table used by the Vortex meter The hard coefficient to find is the compressibility Z Z is found using the Redlich Kwong Equation Miller page 2 18 The Redlich Kw...

Страница 142: ...the critical compressibility critical pressure and critical temperature along with the molecular weight to find the density The equation for specific gravity is C f c c c F T T Z T Mw p G 01102 0 008...

Страница 143: ...he non ideal changes in Factor a fluid s density due to changes in temperature and or pressure CSA Canadian Standards Association d Width of a bluff body or shedder bar D Diameter of a flow channel E...

Страница 144: ...sity nm3 hr Normal cubic meters per hour flow rate converted to normal conditions as shipped 101 kPa and 0 C User definable P Permanent pressure loss P Line pressure psia or bar absolute act The densi...

Страница 145: ...rises scfm Standard cubic feet per minute flow rate converted to standard conditions as shipped 14 696 psia and 59 F User definable Shedder Bar A non streamlined body placed into a flow stream to cre...

Страница 146: ...r provided return or rejection of product is made within a reasonable period but no longer than one 1 year for calibration and non calibration defects from date of delivery To assure warranty service...

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