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3.1.4 Installation Option: Ball Valve Installation

The following figure

shows an example MGP261 ball valve installation. The figure highlights

the correct

wiring routes and shows the recommended installation depth and orientation.

Always use a separate cable for the optional (Ex ia) external

pressure or temperature sensor input wiring (1), and make sure the wiring

remains separated from the terminals and wiring (2) on the other side of the
metal barrier (3) on the component board.

CAUTION!

1

2

4

3

5

Figure 8 MGP261 Installation Example with Wiring Routes and Recommended Orientation and

Depth

1

Optional external pressure or temperature sensor input wiring (Ex ia): use the M16x1.5
lead-through and route the cable directly to the terminal.

2

Standard analog output, power supply input, and RS-485 communication wiring: use the
M20x1.5 lead-throughs and route the cables to the terminals through the openings below
the component board.

3

Metal barrier separating the intrinsically safe external sensor input terminals (optional, for

environmental compensation input) from the analog output, power supply input, and
RS-485 terminals on the component board.

4

1.5" male NPT thread on MGP261:

never install to any other thread type than 1.5" female

NPT

.

5

For best results, install MGP261 horizontally and position the tip of the filter within 1/3 of

the pipe's diameter from the pipe centerline. In smaller pipes, the installation depth can be
adjusted by using an adapter (for example, a ball valve).

More Information

‣

Recommended Installation Position on Pipeline (page 24)

MGP261 User Guide

M212273EN-A

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Содержание MGP261

Страница 1: ...M212273EN A User Guide MGP261 Multigas Probe for Methane Carbon Dioxide and Humidity Measurement MGP261...

Страница 2: ...change without prior notice Local rules and regulations may vary and they shall take precedence over the information contained in this document Vaisala makes no representations on this document s comp...

Страница 3: ...20 3 1 1 Process Flow Range and Installation Type 20 3 1 2 NPT 1 5 Thread Test Plug 257525SP 21 3 1 3 Installation Preparations 21 3 1 4 Installation Option Ball Valve Installation 22 3 1 5 Installat...

Страница 4: ...Compensation Received from External Temperature or Pressure Sensor 46 7 3 4 Configuring Input from External Analog Pressure or Temperature Sensor 47 8 Calibration 49 8 1 Calibration Overview 49 8 1 1...

Страница 5: ...A 1 Modbus Registers 68 A 1 1 Measurement Data 68 A 1 2 Configuration Registers 70 A 1 3 Status Registers 80 A 1 4 Device Identification Objects 83 Warranty 85 Technical Support 85 Recycling 85 Table...

Страница 6: ...agram 29 Figure 14 Installation Type Selection in Insight 33 Figure 15 Connecting Probe to Insight 35 Figure 16 Insight Main Menu and Settings 37 Figure 17 Modbus Communication Settings in Insight PC...

Страница 7: ...e 8 Operating Environment 63 Table 9 Compliance 63 Table 10 Inputs and Outputs 63 Table 11 Mechanical Specification 64 Table 12 Options and Accessories 64 Table 13 Modbus Measurement Data Registers Re...

Страница 8: ...MGP261 User Guide M212273EN A 6...

Страница 9: ...innish Estonian Swedish Norwegian Danish M212291EN USB Service Cable 257295 Quick Guide M212283EN Flow Through Adapter 258877 Quick Guide 1 3 Documentation Conventions Warning alerts you to a serious...

Страница 10: ...CAP are registered trademarks of Vaisala Oyj All other product or company names that may be mentioned in this publication are trade names trademarks or registered trademarks of their respective owners...

Страница 11: ...ument is highly robust and durable MGP261 measurement output options include 3 analog current output channels 4 20 mA and Modbus RTU over RS 485 The probe also provides a 4 20 mA Ex ia input for conne...

Страница 12: ...l Water Vapor H2O Volume Dew point temperature Dew point and frost point temperature 0 100 vol 10 60 C 14 140 F 2 2 3 Wet Basis and Dry Basis Measurement Output MGP261 methane carbon dioxide and water...

Страница 13: ...ent accuracy is not affected CAUTION 2 2 5 Process Flow Range and Installation Type A process flow range of 2 20 m s is suitable for the in situ installation calculation model When operating the probe...

Страница 14: ...asurement Configure serial communication settings analog input and output parameters and scaling and environmental compensations More Information Connecting to Insight Software page 35 MGP261 User Gui...

Страница 15: ...tening nut only tighten from the tightening nut when installing 6 1 5 male NPT thread never install the probe to any other thread type than 1 5 female NPT thread 7 Probe filter 8 1 5 NPT thread test p...

Страница 16: ...le Gland Options and Lead Throughs 1 M16x1 5 wiring lead through 1 used when wiring the optional Ex ia external pressure or temperature sensor input terminal 2 M20x1 5 wiring lead throughs 2 used when...

Страница 17: ...y P rot interferometer FPI and a band pass filter One set of optics measures humidity and carbon dioxide and a second one measures methane The measurement consists of two steps first the FPI is electr...

Страница 18: ...rmal operation 1 3 4 5 6 7 8 2 Figure 5 Measurement in the Measurement Cuvette 1 Mirror 2 Light absorbed by the measured gases 3 Sensor chips under TO5 packages see items 4 8 4 Hermetic window 5 Therm...

Страница 19: ...king in the hazardous location as defined by the applicable standards CAUTION For information on the standards that apply to using MGP261 based on the classification of the device see MGP261 certifica...

Страница 20: ...le 4 page 18 for screw terminal requirements Permitted supply short circuit current Ik 50 A MGP261 analog outputs must be externally powered Connect only de energized wires Never switch on the power s...

Страница 21: ...Groups I IIA IIB IIIC and 600nF for Group IIC The values of Lo and Co determined by this method shall not be exceeded by the sum of all of the Li plus cable inductances in the circuit and the sum of...

Страница 22: ...that the installation type configuration is set correctly in Insight when changing from one installation type to another so that the calculation model in use matches the installation environment and m...

Страница 23: ...ssification of MGP261 Ex II 1 2 1 G Ex eb mb ia IIB T3 Ga Gb 40 C Tamb 60 C Review the hazardous area information in Using MGP261 in Hazardous Locations page 17 and make sure that the conditions for s...

Страница 24: ...nd route the cable directly to the terminal 2 Standard analog output power supply input and RS 485 communication wiring use the M20x1 5 lead throughs and route the cables to the terminals through the...

Страница 25: ...ugh Adapter to MGP261 page 31 1 2 3 4 5 6 Figure 9 MGP261 in Flow Through Adapter 258877 1 Clamp with 2 screws 2 Mounting plate attach to mounting surface with screws or ties 3 Probe gland tightening...

Страница 26: ...ure 10 MGP261 Dimensions in Millimeters and Inches 3 1 7 Recommended Installation Position on Pipeline Figure 11 page 24 shows the recommended installation position for MGP261 Install the probe in a s...

Страница 27: ...a personal gas detector to monitor the safety of the area you are working in After installation use a gas detector to ensure that process connections are leak free WARNING To avoid compromising the l...

Страница 28: ...M16x1 5 gland for the optional external sensor input wiring Ex ia Use 1 or 2 M20x1 5 glands for wiring the 4 20 mA analog output power supply input and RS 485 terminals as required in your application...

Страница 29: ...ed into the port can tear the PTFE tape Only adjust the position of the probe in the installation port by tightening rotating clockwise CAUTION 2 Hold the probe by gripping the tightening nut with a w...

Страница 30: ...al pressure or temperature sensor input wiring Ex ia route the cable to the terminal through the M16x1 5 lead through above the component board 2 Analog output power supply input and RS 485 wiring rou...

Страница 31: ...RS 485 RS 485 RSGND 4 20 mA OUTPUTS 4 20 mA Ex ia INPUT SHIELD RS 485 Iout1 Iout2 Iout3Iin 24 VDC POWER SUPPLY FOR ANALOG OUTPUTS 24 VDC POWER SUPPLY FOR PROBE GROUNDING TERMINAL GROUNDING RAIL FOR PO...

Страница 32: ...l of the installation site 1 Close and tighten the connection box 0 55 mm cover gap and cable glands and tighten the probe to final tightness on the installation port by turning the tightening nut wit...

Страница 33: ...robe gland Never turn from the locknut of the probe gland below the tightening nut The threads of the locknut are glued onto the adapter with a sealant and rotating the locknut will compromise the lea...

Страница 34: ...es that the mounting alignment is incorrect and must be adjusted 90 Ensure the adapter mounting does not pull the probe out of a straight angle If the mounting pulls the probe to the side the leak tig...

Страница 35: ...ight If you install your probe directly into the process for example through a flange or ball valve in the actual pipeline select Directly in process If you are using the probe with a flow through ada...

Страница 36: ...g a Vaisala USB cable no 257295 More Information Connecting to Insight Software page 35 Insight Main View page 37 Configuring Modbus Communication Settings with Insight page 39 Configuring Analog Outp...

Страница 37: ...e 257295 to connect the probe to Insight CAUTION Vin Vin D D GND RS 485 Figure 15 Connecting Probe to Insight 1 Open the Insight software 2 Connect the USB cable to a free USB port on the PC 3 Open th...

Страница 38: ...OM port number in brackets the cable is ready for use Take note of the COM port number for later use If the device is listed as Vaisala USB Instrument Cable without a COM port number listed you must i...

Страница 39: ...al number and software version 2 Select Settings to switch between the Basic Mode and Advanced Mode user modes change the units of parameters metric non metric enter a factory code to access restricte...

Страница 40: ...ation settings can also be configured using Vaisala Insight PC software For a description of MGP261 Modbus registers see Modbus Registers page 68 Table 6 Default Modbus Serial Communication Settings D...

Страница 41: ...cation bit rate Parity data bits and stop bits Response delay To configure the Modbus communication settings with Insight 1 Connect to Insight and select Configure Device Communication 2 Enter the com...

Страница 42: ...software 6 2 Configuring Analog Outputs with Modbus The Modbus implementation of MGP261 includes configuration registers for analog output measurement parameter selection scaling and error output lev...

Страница 43: ...r 4 Store the selections with Save and exit with Close 5 Repeat the configuration for each output analog outputs 1 2 and 3 as required More Information Wet Basis and Dry Basis Measurement Parameters p...

Страница 44: ...ent output selection is made when ordering the probe and can be configured with Vaisala Insight PC software or Modbus The following formula shows the conversion between wet basis and dry basis values...

Страница 45: ...ntinuously The method used for environmental compensation is configured on the order form when ordering the probe and can later be updated using Vaisala Insight PC software or Modbus protocol 7 1 1 Te...

Страница 46: ...tions with Modbus The Modbus implementation of MGP261 includes configuration registers for pressure and temperature compensation setpoints You can also configure the temperature and pressure compensat...

Страница 47: ...ernal Measured temperature only and Off 4 Analog input 1 configure the input from the external pressure or temperature sensor used when the pressure or temperature compensation mode is set as External...

Страница 48: ...ower up defaults menu and store the setting by selecting Save 7 3 2 Using Probe Measurement as Temperature Compensation To set the internal temperature measurement of the probe as the temperature comp...

Страница 49: ...ternal sensor input in the Analog input 1 menu The Input mode and Input parameter selections are set automatically based on the external compensation parameter selection Figure 22 Analog Input 1 Confi...

Страница 50: ...4 Store the setting with Save MGP261 User Guide M212273EN A 48...

Страница 51: ...djustment review the instructions in Removing Probe from Process page 59 WARNING The following calibration and adjustment options are available when the probe is connected to Vaisala Insight PC softwa...

Страница 52: ...sampling line installations and field calibration and adjustment to achieve a controlled flow of gas to the probe The flow through adapter is delivered assembled with a mounting clamp mounting plate...

Страница 53: ...llation Option Flow Through Adapter Installation page 23 Attaching Flow Through Adapter to MGP261 page 31 Installation Type Configuration in Insight page 33 Flow Through Adapter Dimensions page 67 Cha...

Страница 54: ...adjustment replaces the low end adjustment in 2 point adjustments 4 Compensation setpoint configuration for the calibration and adjustment environment 5 Methane CH4 measurement adjustment tab In 2 poi...

Страница 55: ...the reference for the second adjustment points 1 Zero point adjustment tab adjust the zero signal low end reference point 0 for both CH4 and CO2 using nitrogen 2 CH adjustment tab adjust the high end...

Страница 56: ...select Start adjustment 4 Wait until Insight displays a notification about successful zero point adjustment activation The adjustment typically takes 2 3 minutes 5 The zero point adjustment is saved a...

Страница 57: ...ay be due to insufficient stabilization time or unsuitable calibration setup a If you want to apply the adjustment you have made select Activate adjustment b To exit without taking the adjustment in u...

Страница 58: ...a If you want to apply the adjustment you have made select Activate adjustment b To exit without taking the adjustment in use select Close 8 After completing the adjustment update the information in...

Страница 59: ...atically inserted 5 Check the difference between the reference and the measured value Very large differences may be due to insufficient stabilization time or unsuitable calibration setup a If you want...

Страница 60: ...r code DRW249919SP Remove the filter by rotating counter clockwise Do not touch the optical surfaces inside the measurement cuvette when replacing the filter CAUTION The probe filter is the only user...

Страница 61: ...nd meets local regulations for example related to ventilation and personal protective equipment Use a personal gas detector to monitor the safety of the area you are working in After installing or rem...

Страница 62: ...afety pin that locks the handle of the ball valve in the open position and close the ball valve 7 Clean the probe as instructed in Cleaning the Probe page 60 and move the probe to a clean area for fur...

Страница 63: ...contact Vaisala technical support Do not ship the probe to Vaisala without contacting technical support Technical support will provide you with return authorization and up to date shipping instructio...

Страница 64: ...5 vol Repeatability 0 5 vol at 60 vol 0 3 vol at 40 vol 0 1 vol at 10 vol Temperature dependence Compensated 0 100 vol 0 1 of reading C Compensated 0 100 vol 0 1 of reading C Compensated 0 25 vol 0 1...

Страница 65: ...age humidity range 0 90 RH Process pressure range 500 500 mbar g Process temperature range 0 60 C 32 140 F Process flow range 0 20 m s 1 1 A process flow range of 2 20 m s is suitable for in situ inst...

Страница 66: ...onnected external pressure sensor Table 11 Mechanical Specification Property Specification Weight 2 5 kg 5 5 lb Thread type 1 5 male NPT Cable lead throughs 1 x M16x1 5 2 x M20x1 5 Materials Probe bod...

Страница 67: ...of the MGP261 probe are the following 1 2 3 4 5 6 1 Probe body AISI 316L EN 1 4404 X2CrNiMo17 12 2 AISI 316L 2 Sensor package window polished sapphire 3 O ring ethylene propylene rubber black 4 Measur...

Страница 68: ...le gland options and lead through dimensions see Cable Gland Options and Lead Throughs page 14 32 1 26 80 5 3 17 1 5 NPT M16x1 5 M20x1 5 40 1 57 80 5 3 17 E E E E 6 0 24 14 0 56 142 5 59 179 7 05 388...

Страница 69: ...t installation depth The dimensions are given in millimeters and inches 415 16 33 130 5 1 198 7 8 G 1 8 55 21 7 76 29 9 186 1 mm 7 32 Distance at correct installation depth mm in Figure 29 Flow Throug...

Страница 70: ...instead An exception is generated only for any access outside the applicable register ranges A 1 1 Measurement Data Table 13 Modbus Measurement Data Registers Read Only Register Number Decimal Addres...

Страница 71: ...thane CH4 concentration dry basis 16 bit integer ppmv 100 parts per ten thousand 259 0102hex Carbon dioxide CO2 concentration 16 bit integer ppmv 100 parts per ten thousand 260 0103hex Carbon dioxide...

Страница 72: ...ressure compensation value cleared at probe reset 32 bit float hPa Range 450 1550 hPa Init default 1013 25 775 0306hex Volatile temperature compensation value cleared at probe reset 32 bit float C Ran...

Страница 73: ...O 8 2 1540 0603hex Response delay 16 bit integer Valid range 0 1000 1541 0604hex Restart device Function Analog Output 1 1794 0701hex Analog output 1 measurement parameter selection When written scal...

Страница 74: ...parameters Float Output parameters 0000hex CH4 wet basis 0002hex CH4 dry basis 0004hex CO2 wet basis 0006hex CO2 dry basis Minimum 0 Maximum 1000000 Output parameters 0008hex H2O wet basis 000Ahex H2O...

Страница 75: ...ut parameters 0000hex CH4 wet basis 0002hex CH4 dry basis 0004hex CO2 wet basis 0006hex CO2 dry basis Minimum 0 Maximum 1000000 Output parameters 0008hex H2O wet basis 000Ahex H2O dry basis Minimum 0...

Страница 76: ...meter selection When written scalings are reset Reg 0000hex CH4 wet basis 0002hex CH4 dry basis 0004hex CO2 wet basis 0006hex CO2 dry basis 0008hex H2O wet basis 000Ahex H2O dry basis 000Chex Td 000Eh...

Страница 77: ...ifferent parameters Float Output parameters 0000hex CH4 wet basis 0002hex CH4 dry basis 0004hex CO2 wet basis 0006hex CO2 dry basis Minimum 0 Maximum 1000000 Output parameters 0008hex H2O wet basis 00...

Страница 78: ...ers 0000hex CH4 wet basis 0002hex CH4 dry basis 0004hex CO2 wet basis 0006hex CO2 dry basis Minimum 0 Maximum 1000000 Output parameters 0008hex H2O wet basis 000Ahex H2O dry basis Minimum 0 Maximum 25...

Страница 79: ...ement parameter selection When written scalings are reset Reg 0000hex CH4 wet basis 0002hex CH4 dry basis 0004hex CO2 wet basis 0006hex CO2 dry basis 0008hex H2O wet basis 000Ahex H2O dry basis 000Che...

Страница 80: ...parameters Float Output parameters 0000hex CH4 wet basis 0002hex CH4 dry basis 0004hex CO2 wet basis 0006hex CO2 dry basis Minimum 0 Maximum 1000000 Output parameters 0008hex H2O wet basis 000Ahex H2O...

Страница 81: ...y basis Minimum 0 Maximum 1000000 Output parameters 0008hex H2O wet basis 000Ahex H2O dry basis Minimum 0 Maximum 250000 Output parameters 000Chex Td 000Ehex Tdf Minimum 10 Maximum 60 2311 0906hex Err...

Страница 82: ...4hex pressure Minimum 0 Maximum 20 000 0206hex temperature Minimum 200 Maximum 400 2567 0A06hex Input value read only Float A 1 3 Status Registers Table 15 Modbus Status Data Registers Read Only Regis...

Страница 83: ...signed integer 526 020Dhex Tdf measurement status 16 bit signed integer 527 020Ehex Ts measurement status 16 bit signed integer 528 020Fhex Device status 16 bit signed integer 0000hex Critical failure...

Страница 84: ...x Temperature measurement error Error 0027hex Supply power insufficient for analog input Error 0028hex Analog input 1 out of range Error 0030hex Internal temperature error Error 0031hex Supply power i...

Страница 85: ...ect ID Hexadecimal Object Name Example Contents 0 00hex VendorName Vaisala 1 01hex ProductCode MGP261 2 02hex MajorMinorVersion Software version for example 1 2 3 3 03hex VendorUrl http www vaisala co...

Страница 86: ...MGP261 User Guide M212273EN A 84...

Страница 87: ...of Sale for details of the warranty for each product Technical Support Contact Vaisala technical support at helpdesk vaisala com Provide at least the following supporting information Product name mod...

Страница 88: ...MGP261 User Guide M212273EN A 86...

Страница 89: ......

Страница 90: ...www vaisala com...

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