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Emerson Rosemount 3152, Reference Manual

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Reference Manual 

00809-0100-4835 Rev BE 
February 2018

Rosemount 3150 Series 

Maintenance & Troubleshooting

 

66 

Table 5-3 – Troubleshooting 

SYMPTOM 

POTENTIAL 

SOURCE 

CORRECTIVE ACTION 

High Output 

Primary Element 

Check for restrictions at primary element, improper installation or 
poor condition.  Note any changes in process fluid properties that 
may affect output. 

Impulse Piping 

•

Check for leaks or blockage.

•

Ensure blocking valves are fully open.

•

Check for entrapped gas in liquid lines, or liquid in dry lines.

•

Ensure that density of fluid in impulse line is unchanged.

•

Check for sediment in transmitter process flanges.

Transmitter 

Electronics 

Make sure that filter pins and the sensor module connections are 
clean.  If the electronics are still suspect, substitute new 
electronics. 

Transmitter 

Electronics Failure 

Determine faulty circuit board by trying spare electronics 
assembly or terminal block assembly.  Replace faulty assembly. 

Sensor Module 

NOTE: S

ee

 Sensor Module Checkout 

section.  The sensing 

element is not field repairable and must be replaced if found to be 
defective.  See 

Disassembly Procedure

 for instructions on 

disassembly.  Check for obvious defects (i.e. punctured isolating 
diaphragm, etc.) and contact Rosemount Nuclear. 

Power Supply 

Check the power supply output voltage at the transmitter. 

Low Output 

or No Output 

Primary Element 

Check the installation and condition of primary element. 
Note any changes in process fluid properties that may affect 
output. 

Loop Wiring 

 

CAUTION 

Do not use more than 55 volts to check the loop, or 
damage to the transmitter electronics may result. 

•

Check for inadequate voltage to the transmitter.

•

Check the milliamp rating of the power supply against the total
current being drawn for all transmitters being powered.

•

Check for intermittent shorts, open circuits, or multiple grounds.

•

Check for proper polarity at the signal terminal.

•

Check loop impedance.

•

Check wire insulation to detect possible shorts to ground.

Impulse Piping 

•

Ensure that the pressure connection is correct.

•

Check for leaks or blockage.

•

Check for entrapped gas in liquid lines, or liquid in dry lines.

•

Check for sediment in transmitter process flanges.

•

Ensure that blocking valves are fully open and that bypass
valves are tightly closed.

•

Ensure that density of fluid in the impulse line is unchanged.

Transmitter 

Electronics 

Connections 

•

Ensure that calibration adjustments are in allowable range.

•

Check for short in sensor leads.

•

Make sure filter pins are clean, and check the sensor module
connections.

•

If the electronics are still suspect, substitute new electronics.

Continued on Next Page 

Summary of Contents for Rosemount 3152

Page 1: ...Reference Manual 00809 0100 4835 Rev BE February 2018 Rosemount 3150 Series Rosemount 3150 Series Nuclear Pressure Transmitters Including the Rosemount 3152 3153 and 3154 ...

Page 2: ...Rosemount 3150 Series Reference Manual 00809 0100 4835 Rev BE February 2018 ii This page intentionally left blank ...

Page 3: ...derstand the contents of this manual before installing using or maintaining this product For Assistance Within the United States contact Rosemount Nuclear Instruments Inc Rosemount Nuclear at 1 952 949 5210 Outside the United States contact the nearest Rosemount representative Customer Feedback Your feedback is important to us please send comments or suggestions to Chan RNII CustomerFeedback Emers...

Page 4: ...nsmitters are manufactured under a quality system that meets the requirements of 10CFR50 Appendix B 10CFR Part 21 ISO 9001 NQA 1 KTA 1401 KTA 3507 CSA N285 0 CSA Z299 1 and the applicable portions of IAEA 50 C Q During qualification testing interfaces were defined between the transmitter and its environment that are essential to meeting requirements of the qualification standards listed above Spec...

Page 5: ...nificant figures in dimensions Figure 2 6 updated to show external ground screw 2 14 18 19 Revised Electrical section 2 15 19 Updated Figure 2 7 to include Figure 2 7a and Figure 2 7b 2 15 20 21 Revised Figure 2 9 Added Figures 2 10 and 2 11 3 2 5 3 24 52 Added NOTE regarding transmitter factory calibration 3 10 33 Added NOTE regarding typical jumper positions to Coarse Zero Select Jumper Position...

Page 6: ...Rosemount 3150 Series Reference Manual 00809 0100 4835 Rev BE February 2018 vi Title Page This page intentionally left blank ...

Page 7: ...t 18 Electrical 18 SECTION 3 Overview 23 Calibration Safety Messages 23 Calibration Overview 24 Calibration Considerations 24 Definitions 25 Span Adjustment Range 27 Zero Adjustment Range 27 Calibration Procedures 28 Span and Zero Adjustment 28 Zero Based Calibration Procedure LRV is Zero 28 Elevated or Suppressed Zero Calibration Procedure 29 Coarse Zero Select Jumper Position Selection Procedure...

Page 8: ...Safety Messages 51 Troubleshooting General Considerations 52 Test Terminal 54 Electronics Assembly Checkout 54 Sensor Module Checkout 55 Disassembly Procedure 56 Process Flange Removal 57 Electronics Housing Disassembly 57 Reassembly Procedure 59 Electronics Housing Reassembly 59 Process Flange Reassembly 63 Post Assembly Tests 64 SECTION 6 Overview 69 Transmitter Spare Safety Messages 69 Parts Ge...

Page 9: ...Reference Manual 00809 0100 4835 Rev BE February 2018 Rosemount 3150 Series Contents ix This page intentionally left blank ...

Page 10: ...Operation Provides a description of how the transmitter operates Section 5 Maintenance and Troubleshooting Provides basic hardware troubleshooting considerations including disassembly and reassembly procedures and post assembly tests Section 6 Transmitter Spare Parts Provides order information for transmitter spare parts NOTE Refer to the applicable Rosemount Qualification Test Reports Product Dat...

Page 11: ...Reference Manual 00809 0100 4835 Rev BE February 2018 Rosemount 3150 Series Introduction 2 This page intentionally left blank ...

Page 12: ...Conduit Connections Electronics Housing Electrical Considerations Signal Integrity Wiring Connections Installation Procedures Mechanical Electrical SAFETY MESSAGES Procedures and instructions in this section may require special precautions to ensure the safety of the personnel performing the operation Refer to the following safety messages before performing an operation preceded by this symbol WAR...

Page 13: ...nal process flange bolts must break back plane of flange web i e bolt hole but must not contact module housing Use only the approved bolts supplied with the bracket GENERAL CONSIDERATIONS Measurement accuracy depends upon proper installation of the transmitter and its associated impulse piping and valves Mount the transmitter close to the process and use a minimum of piping to achieve best accurac...

Page 14: ...curacy zero the transmitter to cancel this effect per Section 3 Calibration Mount the process flanges with sufficient clearance for process connections For safety reasons place the drain vent valves so the process fluid is directed away from possible human contact when the vents are used Also consider that access to the vent drain valve s and process connection s may be required for plant specific...

Page 15: ... finger tight Tighten the nut one and one quarter turns Do not over tighten Re assembly To reconnect insert the tubing with pre swaged ferrules into the fitting until the front ferrule sits in the fitting Tighten the nut by hand then rotate one quarter turn more or to the originally secured position Then tighten the nut slightly For more detailed information regarding the specifications and use of...

Page 16: ...se piping at least 1 inch per foot 8 cm per meter downward from the transmitter toward the process tap see Figure 2 2 for details Avoid high points in liquid lines and low points in gas lines Make sure both impulse legs are the same temperature Use impulse piping of large enough diameter to avoid friction effects and blockage Vent all gas from liquid piping legs and internal to transmitter process...

Page 17: ...emain filled with condensate Fill impulse lines with water to prevent steam from contacting the transmitter directly and to ensure accurate measurement start up Condensate chambers are not typically necessary since the volumetric displacement of the transmitter is negligible NOTE For steam service do not blow down impulse piping through the transmitter Flush the lines with the transmitter isolated...

Page 18: ...rovided with the transmitter in the unused conduit opening per the torque values in Table 5 2 in Section 5 Maintenance and Troubleshooting The 3154 has one conduit connection Use a qualified conduit seal at the conduit entry to prevent moisture from entering the terminal side of the housing during accident conditions Certain option codes provide a factory installed qualified electrical connector T...

Page 19: ...aring to make electrical connections to the transmitter Read this section carefully before proceeding to the electrical installation procedure Rosemount 3150 Series transmitters provide a 4 20 mA signal when connected to a suitable dc power source Figure 2 3 illustrates a typical signal loop consisting of a transmitter power supply and various receivers controller indicator computer Figure 2 3 Typ...

Page 20: ...on Figure 2 4 Transmitter Supply Voltage vs Load Figure 2 4a IEEE Qualified and Design Regions applicable to 3152N 3153N and 3154N models only POWER SUPPLY VDC 2500 1500 2000 500 1000 12 20 25 30 35 40 45 50 48 13 5 15 38 55 IEEE QUALIFIED REGION DESIGN REGION LOAD OHMS 53 2150 1725 60 43 0 ...

Page 21: ... only Figure 2 4c RCC E Qualified and Design Regions applicable to 3153K and 3154K models only 2150 POWER SUPPLY VDC 2500 1500 500 12 1000 20 25 30 35 40 45 50 15 55 KTA QUALIFIED REGION DESIGN REGION LOAD OHMS 53 60 43 0 1900 2000 45 43 POWER SUPPLY VDC 2500 2000 1500 500 12 1000 20 25 30 35 40 50 15 55 RCC QUALIFIED REGION DESIGN REGION LOAD OHMS 53 2150 2050 60 0 38 750 ...

Page 22: ...high frequency noise has no effect on most instruments Computers with short sampling times in a circuit where the negative transmitter terminal is grounded can detect a significant noise signal Filter this signal out by using a large capacitor 1 uf or a 110 kHz LC filter across the load Signal loops grounded at any other point are negligibly affected by this noise and do not need filtering Signal ...

Page 23: ...of flange web i e bolt hole but must not contact module housing Use only the approved bolts supplied with the bracket 1 Attach the mounting bracket to the mounting location as follows Panel Mount Mount the bracket to a panel or other flat surface for illustration see Figure 2 5 Please note that the bolts required for this step are customer supplied hardware Based on qualification tests performed b...

Page 24: ...provided 5 2 Carbon Steel Panel Bracket 5 16 18 UNC 2A Grade 2 7 3 SST Panel Bracket 3 8 24 UNF 2A Grade 2 8 4 SST 2 inch Pipe Mount Bracket 2 inch pipe U bolts provided 1 The Bracket Code can be found in the 13th position of the 3152 3153 and 3154 model strings 2 Bracket Codes 1 and 5 are available on 3152 and 3153 transmitters only 3 Bracket Codes 2 and 7 are available on 3152 3153 and 3154 tran...

Page 25: ...imensions are nominal in inches millimeters 1 Transmitter and bracket orientation with respect to gravity will not impact qualification 2 Transmitters can alternatively be mounted inside bracket as shown below or with process connection positioned adjacent to bracket not shown 3 A pipe mount kit with three 3 U bolts not shown is also available The use of a third U bolt is necessary to meet KTA sei...

Page 26: ...BE February 2018 17 Installation Figure 2 6 Transmitter Dimensional Drawings Figure 2 6a 3152 3153 Traditional Flange NOTE All dimensions are nominal in inches millimeters Figure 2 6b 3154 Traditional Flange NOTE All dimensions are nominal in inches millimeters ...

Page 27: ...support for the conduit if necessary Electrical CAUTION Do not connect signal leads to the TEST terminals WARNING Electrical shock can result in death or serious injury Avoid contact with the leads and terminals High voltage that may be present on leads can cause electrical shock 1 Remove the cover from the terminal side of the transmitter 2 Connect the power leads to the SIGNAL terminals on the t...

Page 28: ...further 6 Visually inspect both covers to ensure they are installed metal to metal Visual inspection is sufficient to ensure metal to metal contact however a gap gauge may be used for verification if desired When metal to metal contact has been made the acceptable gap between cover and housing will be less than 0 010 inch see Figures 2 10 and 2 11 NOTE Replace the cover o rings per the steps outli...

Page 29: ...ng Covers Installed Metal to Metal Aluminum Housing 3152 3153 SST Housing 3152 SST Housing 3154 Figure 2 10 Inspection of Metal to Metal Installation 1 If the gap exceeds acceptable limit it will be possible to insert a 0 010 inch gap gauge at least 0 100 in 2 54 mm Cover Housing Interface Note Stainless Steel SST interface includes chamfers on cover and housing ...

Page 30: ...ure 2 11 Acceptable vs Unacceptable Gap Between Cover and Housing Figure 2 11a Acceptable Gap Between Cover and Housing Aluminum Housing 3152 3153 SST Housing 3152 SST Housing 3154 Figure 2 11b Unacceptable Gap Between Cover and Housing Aluminum Housing 3152 3153 SST Housing 3152 SST Housing 3154 ...

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Page 32: ... Pressure Span Effect on Range Codes 1 2 and 3 DP Transmitters High Static Pressure Span Correction for Range Codes 4 and 5 DP Transmitters High Static Line Pressure Zero Correction for DP Transmitters All Ranges Linearity SAFETY MESSAGES Procedures and instructions in this section may require special precautions to ensure the safety of the personnel performing the operation Refer to the following...

Page 33: ...mount Nuclear with questions regarding calibrations that are not explained in this manual Rosemount 3150 Series transmitters are factory calibrated to the range shown on the nameplate see Figure 1 1 This range may be changed within the limits of the transmitter Zero may also be adjusted to elevate for all models except absolute pressure reference or suppress for all models Calibrations that have a...

Page 34: ...e Limit URL The highest pressure the transmitter can be adjusted to measure specified in the model ordering information by pressure range code Upper Range Value URV The highest pressure the transmitter is adjusted to measure This pressure corresponds to the 20mA output point Lower Range Value LRV The lowest pressure the transmitter is adjusted to measure This pressure corresponds to the 4mA output...

Page 35: ... Series pressure transmitter Sign Convention Positive numbers indicate positive pressure is applied to the high pressure side of the DP cell or a vacuum is applied to the low pressure side of the DP cell The high pressure side is indicated on the sensor module by an H Negative numbers indicate positive pressure is applied to the low pressure side of the DP cell or a vacuum is applied to the high p...

Page 36: ...be adjusted to achieve a maximum 90 Zero Offset for suppressed zero calibrations and 100 Zero Offset for elevated zero calibrations To achieve these levels of zero elevation and zero suppression the 3150 Series is equipped with a coarse zero select jumper located on the Electronics Assembly in the electronics housing see Figure 3 2 A graphical representation of three calibrations is shown in Figur...

Page 37: ...djustment screw The coarse zero select jumper is in the Nominal position for all zero based calibrations 1 Apply a pressure equal to the LRV to the high side pressure connection and turn Zero adjustment until output reads 4 mA 2 Apply a pressure equal to the URV to the high side process connection and turn Span adjustment until output reads 20 mA 3 Check to assure desired outputs are achieved and ...

Page 38: ...Suppressed Zero Calibration Procedure The easiest way to calibrate a 3150 Series pressure transmitter with an elevated or suppressed zero is to perform a zero based calibration and then elevate or suppress the zero by adjusting the zero adjustment screw and if necessary the coarse zero select Jumper NOTE For large amounts of elevation or suppression it may be necessary to reposition the coarse zer...

Page 39: ...lection Procedure For this example Zero Offset 120 inH2O 250 inH2O 100 48 Position the jumper to the MID ZE position 3 Apply 120 inH2O to the high side process connection as marked on the transmitter sensor module and adjust the zero until the transmitter output reads 4mA DO NOT USE THE SPAN ADJUSTMENT NOTE Applying 120 inH2O to the low side process connection as marked on the transmitter module w...

Page 40: ...his example Zero Offset 29 9 kPa 62 2 kPa 100 48 Position the jumper to the MID ZE position 3 Apply 29 9 kPa to the high side process connection as marked on the transmitter sensor module and adjust the zero until the transmitter output reads 4mA DO NOT USE THE SPAN ADJUSTMENT NOTE Applying 29 9 kPa to the low side process connection as marked on the transmitter module will give the same result 4 ...

Page 41: ...THE SPAN ADJUSTMENT 4 Apply 120 inH2O to the high side process connection Verify the output reads 20 mA If necessary adjust the span Recheck the zero after any span adjustment Figure 3 6b Example for Suppressed Zero Calibration SI Units Range 2 with Zero Suppression for a calibration of 5 0 to 29 9 kPa 24 9 kPa span 1 Calibrate the transmitter to 0 to 24 9 kPa as described in the Zero Based Calibr...

Page 42: ...100 Where LRV Lower Range Value of desired calibration URL Transmitter Upper Range Limit 2 Consult Figures 3 8a or 3 8b to determine typical jumper position 3 If the jumper requires re positioning remove the electronics housing cover opposite the Field Terminals label Remove the jumper by squeezing the sides and pulling out Reposition the jumper with the arrow pointing to the typical position and ...

Page 43: ... 250 inH2O 100 70 Per Figure 3 8b the typical jumper position is MAX ZE Figure 3 7b Example for Coarse Zero Select Jumper Adjustment SI Units Range 2 for a calibration of 43 6 to 31 1 kPa LRV 43 6 kPa Zero Offset 43 6 kPa 62 2 kPa 100 70 Per Figure 3 8b the typical jumper position is MAX ZE NOTE If you remove either cover during the above procedures follow the instructions in Section 5 Maintenance...

Page 44: ...lectronics damping option are calibrated and shipped with the adjustment set at the counterclockwise stop giving the minimum time constant Damping adjustment should be made with the transmitter calibrated to the intended application calibration To adjust the damping turn the damping adjustment potentiometer until the desired time constant is obtained It is best to set the damping to the shortest p...

Page 45: ...d at high static line pressure It is linear and correctable during calibration The correction factor for span shift caused by the application of static line pressure is shown in Table 3 1 Table 3 1 Range 4 and 5 Correction Factors Range 4 and 5 Span Correction Factor Input Reading per 1000 psi 6 90 MPa Range 4 1 00 Range 5 1 25 Correction factors have an uncertainty of 0 20 of input reading per 10...

Page 46: ...bration of 10 to 45 psi corrected for 1 500 psi static line pressure 1 Calculate the corrected output reading at LRV 4 mA 0 01 X 1500 psi 1000 psi X 10 psi 55 psi X 16 mA 3 956 mA 2 Calculate the corrected output reading at URV 20 mA 0 01 X 1500 psi 1000 psi X 45 psi 55 psi X 16 mA 20 196 mA 3 At atmospheric static line pressure apply 10 psi to the low side process connection 10 psi and adjust the...

Page 47: ...s connection and adjust the span until the transmitter output reads 20 196 mA 5 Check to assure desired outputs are achieved and repeat steps 3 and 4 if necessary When the transmitter is exposed to 10 34 MPa static line pressure within specified uncertainties the output will be 4 mA at 0 07 MPa and 20 mA at 0 31 MPa Method 2 for High Static Line Pressure Ranges 4 and 5 Adjust transmitter pressure ...

Page 48: ...gure 3 10a Example 1 for High Static Line Pressure Span Correction using Method 2 English Units Range 4 for a calibration of 0 to 45 psi corrected for 1 500 psi static line pressure 1 In this example LRV is 0 psid Zero differential pressure points require no span correction 2 Calculate the corrected URV pressure input 45 psi 0 01 X 45 psi X 1500 psi 1000 psi 44 325 psi 3 At atmospheric static line...

Page 49: ...sure input 0 31 MPa 0 01 X 0 31 MPa X 10 34 MPa 6 90 MPa 0 305 MPa 3 At atmospheric static line pressure with zero differential pressure applied adjust the zero until the transmitter output reads 4 mA 4 Remaining at atmospheric static line pressure apply 0 305 MPa to the high side process connection and adjust the span until the transmitter output reads 20 mA 5 Check to assure desired outputs are ...

Page 50: ... Calculate the corrected URV pressure input 750 psi 0 0125 X 750 psi X 1500 psi 1000 psi 735 94 psi 3 At atmospheric static line pressure apply 245 31 psi to the low side process connection 245 31 psi and adjust the zero until the transmitter output reads 4 mA 4 Remaining at atmospheric static line pressure apply 735 94 psi to the high side process connection and adjust the span until the transmit...

Page 51: ...34 MPa static line pressure within specified uncertainties the output will be 4 mA at 1 72 MPa and 20 mA at 5 17 MPa High Static Line Pressure Zero Correction for DP Transmitters All Ranges Zero shift with static pressure is not systematic However the effect can be eliminated during calibration To trim out the zero error at high static line pressure perform the following If the calibrated range in...

Page 52: ...nd 5 only correct for static pressure span effect as described in Static Pressure Span Correction for Range Code 4 and 5 DP Transmitters i Apply pressure equal to the LRV zero line pressure adjust the zero by the amount calculated in step f Figure 3 12 outlines an example of a Zero Correction for High Static Line Pressure for a transmitter with a non zero based calibration Figure 3 12 High Static ...

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Page 54: ...scillator page 48 Voltage Regulator page 48 Current Control page 49 Current Limit page 49 Reverse Polarity Protection page 49 OVERVIEW This section provides a brief description of basic 3150 Series pressure transmitter operations in the following order Transmitter Theory of Operation The Sensor Cell Demodulator Oscillator Voltage Regulator Current Control Current Limit Reverse Polarity Protection ...

Page 55: ...lectronically to a 2 wire 4 20 mA dc signal based on the following formulas 𝑃𝑃 𝑘𝑘1 𝐶𝐶2 𝐶𝐶1 𝐶𝐶1 𝐶𝐶2 Where P is the process pressure k1 is a constant C1 is the capacitance between the high pressure side and the sensing diaphragm C2 is the capacitance between the low pressure side and the sensing diaphragm 𝑓𝑓𝑉𝑉 𝑝𝑝 𝑝𝑝 𝐼𝐼𝑟𝑟𝑟𝑟𝑟𝑟 𝐶𝐶1 𝐶𝐶2 Where Iref is the reference current Vp p is the peak to peak oscill...

Page 56: ...nter of the Sensor The reference pressure is transmitted in a like manner to the other side of the sensing diaphragm The capacitance plates on both sides of the sensing diaphragm detect the position of the sensing diaphragm The capacitance between the sensing diaphragm and either capacitor plate ranges from 40 pf to 80 pf depending on input pressure An oscillator drives the sensor current through ...

Page 57: ...2 𝐶𝐶1 The diode bridge and temperature compensation circuits are located inside the sensor module OSCILLATOR The oscillator frequency is determined by the capacitance of the sensing element and the inductance of the transformer windings The sensing element capacitance is variable Therefore the frequency is variable about a nominal value of 110 kHz An operational amplifier acts as a feedback contro...

Page 58: ...r current and a zero adjustment current This output is supplied to the second amplifier which controls the current in the 4 20 mA loop proportionally CURRENT LIMIT The current limiter prevents output current from exceeding 30 mA nominal in an overpressure condition Conversely minimum output is limited to 3 mA nominal Both the minimum and maximum current limits may vary slightly depending upon sens...

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Page 60: ...embly Procedure Process Flange Removal Electronics Housing Disassembly Reassembly Procedure Electronics Housing Reassembly Process Flange Reassembly Post Assembly Tests SAFETY MESSAGES Procedures and instructions in this section may require special precautions to ensure the safety of the personnel performing the operation s Refer to the following safety messages before performing an operation prec...

Page 61: ...e of traceability of any replacement parts is the responsibility of the user see Important Notice at the beginning of this manual preceding Section 1 GENERAL CONSIDERATIONS The Rosemount 3150 Series transmitters have no moving parts and require a minimum of scheduled maintenance Calibration procedures for range adjustments are outlined in Section 3 Calibration A calibration check should be conduct...

Page 62: ...ist ITEM NO DESCRIPTION ITEM NO DESCRIPTION 1 Electronics Cover 8 Sensor Module 2 O ring for Electronics Cover 9 C rings for Process Flange 3 Coarse Zero Select Jumper 10 Process Flange 4 Electronics Assembly 11 Bolts for Process Flange 5 Electronics Housing Assembly includes set screws 12 Housing Set Screws 6 Terminal Block Assembly 13 Flange Cap Screws 7 O ring for Header ...

Page 63: ...m numbers in Figure 5 1 NOTE 3150 Series transmitters contain electronic circuit boards which may be static sensitive Therefore observe proper ESD precautions techniques whenever the electronics assemblies are handled and or uncovered The electronics assembly 4 is not field repairable and must be replaced if defective To check the electronics assembly for a malfunction substitute a spare assembly ...

Page 64: ...unctionality measure the voltage drop of the sensor diodes between the following sensor module pins the positive lead should be connected to the first sensor module pin listed A Pin 3 and Pin 5 Should measure approximately 1 2 volts B Pin 4 and Pin 3 Should measure approximately 1 2 volts C Pin 4 and Pin 5 Should measure approximately 2 4 volts NOTE Results obtained using the above procedure may v...

Page 65: ...t the process from the transmitter before removing the transmitter from service Remove all electrical leads and conduit WARNING Residual process fluid may remain after disassembly of process flanges If this fluid is potentially contaminated take appropriate safety measures NOTE Numbers in parentheses refer to item numbers in Figure 5 1 NOTE 3150 Series transmitters contain electronic circuit board...

Page 66: ...s so that their slots are perpendicular to the board as shown in Figure 5 4 3 Unscrew the two 6 32 captive screws holding the electronics assembly to the housing and pull the electronics assembly from the housing see Figure 5 4 4 Unclip and disconnect the connector plug from the top of the sensor module 8 to completely remove the electronics assembly see Figure 5 5 To remove connector plug apply e...

Page 67: ...bruary 2018 Rosemount 3150 Series Maintenance Troubleshooting 58 Figure 5 4 Location of Zero and Span Adjustment Screws and Electronics Assembly Captive Screws Figure 5 5 Removing Electronics Assembly Figure 5 6 Removing Terminal Block Assembly ...

Page 68: ...dule interface is intact Prior to any maintenance that requires the housing 5 to be rotated or removed from the sensor module 8 please contact Rosemount Nuclear Preliminary 1 Replace the cover o rings 2 whenever removing an electronics housing cover 1 Check the cover o ring grooves for cleanliness If chips or dirt are present clean the seat and mating portion of the cover with alcohol Lubricate re...

Page 69: ...rence the transmitter was qualified using Molykote 55 silicone o ring grease Spare Parts number 03154 5002 0001 or 03154 5002 0002 Figure 5 8 Connector Plug NOTE Use caution when applying silicone o ring grease to the exposed surface of the connector plug o ring to avoid getting lubricant on the receptacles at the end of the connector plug 4 Push the connector plug down over the pins on the top of...

Page 70: ...he electronics housing 5 and fasten with the two 6 32 captive screws Torque each captive screw to 7in lbs 1 in lbs 0 8 N m 0 1 N m or hand tight see Figure 5 11 Figure 5 11 Installation of Electronics Assembly Terminal Block Assembly 1 Install the terminal block assembly 6 into the FIELD TERMINALS side of the electronics housing 5 and torque the two 6 32 screws to 7in lbs 1 in lbs 0 8 N m 0 1 N m ...

Page 71: ...th cover installation or wire damage could occur NOTE Housing covers are pre lubricated and do not require additional lubrication 3 Tighten cover until it makes metal to metal contact with the housing see Figure 2 9 in Section 2 Installation Once metal to metal contact has been made it is not necessary to tighten the cover any further 4 Visually inspect both covers to ensure they are installed met...

Page 72: ...ge sitting securely on the sensor module install two flange cap screws 13 into the flange location shown in Figure 5 13 Install the cap screws finger tight 4 Place the four bolts 11 through the process flange and screw them on finger tight 5 Using a hand torque wrench evenly seat the flange onto the sensor module by following steps 6 through 9 see Figure 5 13 to identify the bolts 6 Alternately ti...

Page 73: ...f maximum working pressure or 2 000 psi 13 79 MPa whichever is greater Conduct the testing for a duration of ten minutes minimum and visually verify that there is no water leakage from the transmitter including the flange process connection interface and the flange sensor module interface 2 Calibrate the transmitter per Section 3 Calibration in this manual 3 Clean the wetted parts to 1 ppm chlorid...

Page 74: ...in Vent Valve Stems 7 5 ft lb 10 N m same same 0 5 ft lb 0 7 N m Drain Vent Valve Seats 200 in lbs 22 6 N m same same 1 ft lb 1 4 N m Screen Plug 50 in lbs 5 7 N m same same 1 in lb 0 1 N m Swagelok Process Fitting See installation instructions same same Covers See installation instructions same same Conduit Plug 200 in lb 22 6 N m same N A 1 ft lb 1 4 N m Conduit Seal Fitting See Manufacturer s i...

Page 75: ...tc and contact Rosemount Nuclear Power Supply Check the power supply output voltage at the transmitter Low Output or No Output Primary Element Check the installation and condition of primary element Note any changes in process fluid properties that may affect output Loop Wiring CAUTION Do not use more than 55 volts to check the loop or damage to the transmitter electronics may result Check for ina...

Page 76: ...ve See Disassembly Procedure for instructions on disassembly Check for obvious defects i e punctured isolating diaphragm etc and contact Rosemount Nuclear Power Supply Check the power supply output voltage at the transmitter Erratic Output Impulse Piping and Process Connections Check for entrapped gas in liquid lines or liquid in dry lines Transmitter Electronics Check for intermittent shorts or o...

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Page 78: ...Qualified Life Spare Parts List SAFETY MESSAGES Procedures and instructions in this section may require special precautions to ensure the safety of the personnel performing the operation s Refer to the following safety messages before performing an operation preceded by this symbol WARNING Explosions can result in death or injury Do not remove the transmitter covers in explosive environments when ...

Page 79: ...ies of the transmitter and may render the instrument dangerous or adversely impact its qualified status Use only components supplied with the 3152 3153 or 3154 transmitter or designated by Rosemount Nuclear as spare parts for the 3152 3153 or 3154 NOTE Maintenance of traceability for any replacement part is the responsibility of the user see Important Notice at the beginning of this manual precedi...

Page 80: ...ensure that all replacement parts are installed in accordance with the Rosemount Nuclear approved installation and calibration procedures herein NOTE Spare parts for Rosemount 3152 3153 and 3154 models are not hydrostatically tested or nuclear cleaned NOTE The part numbers shown are current at the time of printing of this manual but may be revised in the future Parts provided are compatible and in...

Page 81: ...re Parts 72 IMPACT ON TRANSMITTER QUALIFIED LIFE Transmitters were qualified based on an installed life of 20 years at an ambient temperature of 120 F 48 9 C The use or installation of spare parts has no effect on overall transmitter qualified life as established in the baseline qualification ...

Page 82: ...1 0001 Terminal Block Transient Protection 4 6 1 B 03154 5021 0002 Electronics Housing Covers Accessories Electronics Housing Cover AL 3152 3153 1 2 03154 5024 0001 Electronics Housing Cover SST 3152 1 2 03154 5024 0002 Electronics Housing Cover SST 3154 1 2 03154 5024 0003 1 2 NPT Conduit Plug 316L SST 1 03153 5020 0001 M20 x 1 5 Conduit Plug 316L SST 1 03153 5025 0001 NPT conduit Elbow w Tube Ad...

Page 83: ...Kits for AP Transmitters 5 Flange Assembly w Qty 1 C ring Flange Code F0 9 10 1 03154 5042 2001 Flange Assembly w Qty 1 C ring Flange Code F1 9 10 1 03154 5042 0200 Flange Assembly w Qty 1 C ring Flange Code F2 9 10 1 03154 5042 0001 Flange Assembly w Qty 1 C ring Flange Code F3 9 10 1 03154 5042 0201 Flange Assembly w Qty 1 C ring Flange Code F4 9 10 1 03154 5042 0101 Flange Assembly w Qty 1 C ri...

Page 84: ...go is a trademark and service mark of Emerson Electric Co Rosemount and Rosemount logotype are trademarks of Rosemount Inc 2018 Emerson Automation Solutions All rights reserved Molykote is a registered trademark of Dow Corning Co Swagelok is a registered trademark of Swagelok Co Loctite 266 is a registered trademark of Henkel AG Co Std 323 and Std 344 are registered trademarks of IEEE All other ma...

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