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Figure 2-3: Submersion Installations

4. Run the sensor cable through a protective conduit for isolation from electrical

interference or physical abuse from the process.

5. Install the sensor within 80° of vertical, with the electrode facing down.

Do not run the sensor's cable with power or control wiring.

2.2.2

Flow through and insertion mounting

Rosemount 389 and 389VP sensors also have a 1-in. MNPT process at the front of the
sensor for mounting into a 1

¼

-in. tee or the process. See

for installation

configurations.

Install

Reference Manual

February 2019

00809-0100-3389

14

Rosemount 389/389VP

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Содержание Rosemount 389

Страница 1: ...Reference Manual 00809 0100 3389 Rev AA February 2019 Rosemount 389 389VP General Purpose pH ORP Sensors ...

Страница 2: ...maintain the product When replacement parts are required ensure that qualified people use replacement parts specified by Emerson Unauthorized parts and procedures can affect the product s performance place the safe operation of your process at risk and VOID YOUR WARRANTY Look alike substitutions may result in fire electrical hazards or improper operation Ensure that all equipment doors are closed ...

Страница 3: ...tion 27 3 1 Sensor preparation 27 3 2 pH calibration 27 3 3 Rosemount 389 389VP ORP calibration 28 Chapter 4 Maintenance 31 4 1 Clean electrode 31 4 2 Automatic temperature compensator 32 4 3 ORP 33 Chapter 5 Troubleshooting 35 Chapter 6 Return of Material 37 Appendix A EC Declaration of Conformity 39 Appendix B China RoHS Table 43 Appendix C Intrinsically Safe Sensor Installation Drawing FM 45 Re...

Страница 4: ...Contents Reference Manual February 2019 00809 0100 3389 4 Rosemount 389 389VP ...

Страница 5: ... formulation enhances the sensor performance to measure pH more accurately and have a longer sensor life than ever before A choice of pH glass electrodes is available to best meet various application needs Two types are available general purpose and high pH glass The AccuGlass hemi bulb is the standard glass offered on both types and can be used for most applications The Rosemount 389VP is configu...

Страница 6: ...nge pH 0 to 14 ORP 1500 to 1500 mV Temperature range 32 to 185 F 0 to 85 C Automatic temperature compensation 32 to 185 F 0 to 85 C Maximum pressure 100 psig 790 kPa abs at 150 F 65 C see Figure 1 1 Materials of construction Sensor body Tefzel pH electrode Glass ORP electrode Platinum Junction Ceramic O ring Viton Process connections Front facing 1 in MNPT Rear facing 1 in MNPT Cable 389 Integral ...

Страница 7: ... only II 1 G Ex ia IIC T4 Ga 20 ºC Ta 60 ºC Sensors with standard preamp ORP only II 1 G Ex ia IIC T4 Ga 20 ºC Ta 80 ºC or II 1 G Ex ia IIC T5 Ga 20 ºC Ta 40 ºC Per standards EN 60079 0 2012 A11 2013 EN 60079 11 2012 FM See online FM Certificate of Compliance for applicable sensor options Intrinsically safe for use in Class I II and III Division 1 Groups A B C D E F and G Temperature Class T6 Ta 2...

Страница 8: ... M1992 CAN CSA E60079 0 07 CAN CSA E60079 11 02 UL 50 UL 508 UL 913 UL 60079 0 2005 UL 60079 11 2002 1 4 Ordering information The Rosemount 389 and 389VP General Purpose pH ORP Sensors are housed in a molded Tefzel body with 1 in MNPT forward and rear facing threads suitable for insertion submersion or flow through installation The sensors can be configured with a general purpose pH high pH or pla...

Страница 9: ...option 55 only Preamplifier is standard for ORP electrodes and for options 50 and 54 Table 1 4 Rosemount 389VP pH ORP Sensor ordering information Model Sensor type 389VP pH ORP sensor Combination electrode 10 pH GPLR glass 11 pH high pH glass 12 ORP Transmitter TC compatiblity 50 1181 1050 1060 code 01 or 02 54 1054A B 81 2081 code 01 or 02 for 54 56 1055 1056 1057 1066 5081 6081 and XMT code 02 o...

Страница 10: ...Description and Specifications Reference Manual February 2019 00809 0100 3389 10 Rosemount 389 389VP ...

Страница 11: ...y if any part is missing 2 2 Mounting The sensor has been designed to be located in industrial process environments Temperature and pressure limitations must not be exceeded at any time A label regarding this matter is attached to the sensor with the cable and should not be removed Figure 2 1 Rosemount 389 Sensor Dimensional Drawing A pH ORP electrode B TC C 1 in MNPT D 1 in wrench opening E 1 in ...

Страница 12: ...e present inside the tip of the pH glass 2 Do not install the sensor horizontally The sensor must be 10 off the horizontal to ensure accuracy 3 Do not install the sensor upside down 4 With the standard recessed electrode air bubbles may become trapped in the sensor end This problem is most commonly encountered in areas of low flow or during calibration Shake the probe while it is immersed in solut...

Страница 13: ...nection at the back of the sensor Procedure 1 To prevent rain water or condensation from running into the sensor use a weatherproof junction box see Figure 2 3 2 Using a standard 1 in union mount the sensor to a 1 in SCH 80 CPVC or PVDF standpipe 3 Tapered pipe threads in plastic tend to loosen after installation We therefore recommend that you use PTFE tape on the threads and check the tightness ...

Страница 14: ...f vertical with the electrode facing down Do not run the sensor s cable with power or control wiring 2 2 2 Flow through and insertion mounting Rosemount 389 and 389VP sensors also have a 1 in MNPT process at the front of the sensor for mounting into a 1 in tee or the process See Figure 2 4 for installation configurations Install Reference Manual February 2019 00809 0100 3389 14 Rosemount 389 389VP...

Страница 15: ...semount transmitters 1 If the cable needs to be extended use a high quality four conductor shielded instrument cable available from Rosemount Note If the cable is too long loop up the excess cable If the cable has to be shortened splice and terminate each conductor and make sure that the overall outermost drain wire is not shorted out with either of the two inner drain wires shields 2 Signal cable...

Страница 16: ...2 135 Viton O ring Note O ring must be inplace prior to use PN 9550175 E Nut hex union 2 in 3 in wrench opening 304 SST F 2 531 8 ACME thread TYP G Neck union fitting 316 SST 2 5 8 in wrench opening H 1 in MNPT Figure 2 6 VP 8 Cable Rosemount 389VP Sensor End Install Reference Manual February 2019 00809 0100 3389 16 Rosemount 389 389VP ...

Страница 17: ...efer to the Liquid Transmitter Wiring Diagrams C Solution ground D Note For additional wiring information on this product including sensor combinations not shown here refer to the Liquid Transmitter Wiring Diagrams E Ref in F pH mV IN G pH mV SHIELD H RTD return I RTF sense J RTD IN Reference Manual Install 00809 0100 3389 February 2019 Reference Manual 17 ...

Страница 18: ...Figure 2 8 Rosemount 389 01 xx 55 Wiring to Rosemount 1056 1057 and 56 Transmitters Install Reference Manual February 2019 00809 0100 3389 18 Rosemount 389 389VP ...

Страница 19: ... 9 Rosemount 389 01 xx 55 Wiring to Rosemount 1066 Transmitter Figure 2 10 Rosemount 389 01 xx 55 Wiring to Rosemount 5091 Transmitter Reference Manual Install 00809 0100 3389 February 2019 Reference Manual 19 ...

Страница 20: ...Figure 2 11 Rosemount 389VP Wiring to Rosemount 1056 1057 and 56 Transmitters Install Reference Manual February 2019 00809 0100 3389 20 Rosemount 389 389VP ...

Страница 21: ...igure 2 12 Rosemount 389VP Wiring to Rosemount 1066 Transmitter Figure 2 13 Rosemount 389VP Wiring to Rosemount 5081 Transmitter Reference Manual Install 00809 0100 3389 February 2019 Reference Manual 21 ...

Страница 22: ...unt 389VP xx 55 70 Wiring to Rosemount 1056 1057 and 56 Transmitters Figure 2 15 Rosemount 389VP xx 55 70 Wiring to Rosemount 1066 Transmitter Install Reference Manual February 2019 00809 0100 3389 22 Rosemount 389 389VP ...

Страница 23: ...Figure 2 16 Rosemount 389VP xx 55 70 Wiring to Rosemount 5081 Transmitter Reference Manual Install 00809 0100 3389 February 2019 Reference Manual 23 ...

Страница 24: ...Figure 2 17 Rosemount 389 02 xx 54 62 Wiring to Rosemount 1056 56 and 1057 Transmitters Install Reference Manual February 2019 00809 0100 3389 24 Rosemount 389 389VP ...

Страница 25: ... Rosemount 389 02 xx 54 62 Wiring to Rosemount 1066 Transmitter Figure 2 19 Rosemount 389 02 xx 54 62 Wiring to Rosemount 5081 Transmitter Reference Manual Install 00809 0100 3389 February 2019 Reference Manual 25 ...

Страница 26: ...Install Reference Manual February 2019 00809 0100 3389 26 Rosemount 389 389VP ...

Страница 27: ...wo pH units apart Note A pH 7 buffer solution reads an mV value of approximately zero and pH buffers read approximately 59 1 mV for each pH unit above or below pH 7 Check the pH buffer manufacturer specifications for millivolt values at various temperatures as it may affect the actual value of the buffer solution mV pH value Procedure 1 Immerse the sensor in the first buffer solution Allow the sen...

Страница 28: ...nents that are oxidized or reduced by the reagents that are used Theoretically the ORP potential is absolute because it is the result of the oxidation reduction equilibrium However the actual measured potential is dependent on many factors including the condition of the surface of the ORP platinum electrode Therefore the sensor should be allowed 1 2 hours to become conditioned to the stream when f...

Страница 29: ... The ORP value of saturated quinhydrone solution is not stable over long periods of time Therefore make these standards fresh each time they are used Table 3 1 ORP of Saturated Quinhydrone Solution Millivolts pH 4 solution pH 7 solution Temp ºC 20 25 30 20 25 30 mV potential 268 264 260 94 87 80 5 Remove the sensor from the buffer rinse and install in the process Reference Manual Calibration 00809...

Страница 30: ...Calibration Reference Manual February 2019 00809 0100 3389 30 Rosemount 389 389VP ...

Страница 31: ... clean lint free cloth or tissue If this does not remove the dirt or coating go to Step 4 detergents clean oil and grease acids remove scale 4 Wash the glass bulb in a strong detergent solution and rinse it in clean water If this does not clean the glass bulb go to Step 5 WARNING CORROSIVE SUBSTANCE The solution used during the following step is an acid handle with care Follow the directions of th...

Страница 32: ...5 C and a Pt100 reads 110 ohms Resistance varies with temperature for a 3K and Pt 100 element and can be determined according to Table 4 2 or the following formula RT RO 1 R1 T 20 Where RT Resistance and T Temperature in C Refer to Table 4 1 for RO and R1 values Table 4 1 RO and R1 Values for Temperature Compensation Elements Temperature compensation element RO R1 3K 2934 0 0045 PT 100 107 7 0 003...

Страница 33: ... add 56 2 ml of concentrated sulfuric acid 3 Add sufficient water to bring the total solution volume up to 1000 ml This standard ORP solution although not as simple to prepare as the quinhydrone recipe is much more stable and will maintain its millivolt value for approximately one year when stored in glass containers This solution ferric ferrous ammonium sulfate produces a nominal ORO of 476 20 mV...

Страница 34: ...Maintenance Reference Manual February 2019 00809 0100 3389 34 Rosemount 389 389VP ...

Страница 35: ...d in Automatic temperature compensator and replace sensor if defective Span between buffers extremely short in AUTO T C Mode T C element shorted Check T Cl element as instructed in Automatic temperature compensator and replace sensor if defective Sluggish or slow meter indication for real changes in pH level Electrode cracked Clean sensor as instructed in Clean electrode or Cleaning platinum elect...

Страница 36: ...r insert 1 x 3 4 in for 23242 02 23646 01 11 conductor extension cable shielded and prepped for use with remote junction box 9200273 11 conductor extension cable shielded and unprepped for use with remote junction box 24091 00 Low flow cell 1 in sensor threaded connectio 1 4 in process connection 23555 00 Weatherproof junction box with preamplifier 2002565 Mounting bracket kit 9210012 pH 4 01 buff...

Страница 37: ...6 Return of Material For all repair or return of material requests please contact the factory Reference Manual Return of Material 00809 0100 3389 February 2019 Reference Manual 37 ...

Страница 38: ...Return of Material Reference Manual February 2019 00809 0100 3389 38 Rosemount 389 389VP ...

Страница 39: ...A EC Declaration of Conformity Reference Manual EC Declaration of Conformity 00809 0100 3389 February 2019 Reference Manual 39 ...

Страница 40: ...EC Declaration of Conformity Reference Manual February 2019 00809 0100 3389 40 Rosemount 389 389VP ...

Страница 41: ...Reference Manual EC Declaration of Conformity 00809 0100 3389 February 2019 Reference Manual 41 ...

Страница 42: ...EC Declaration of Conformity Reference Manual February 2019 00809 0100 3389 42 Rosemount 389 389VP ...

Страница 43: ...B China RoHS Table Reference Manual China RoHS Table 00809 0100 3389 February 2019 Reference Manual 43 ...

Страница 44: ...China RoHS Table Reference Manual February 2019 00809 0100 3389 44 Rosemount 389 389VP ...

Страница 45: ...C Intrinsically Safe Sensor Installation Drawing FM Reference Manual Intrinsically Safe Sensor Installation Drawing FM 00809 0100 3389 February 2019 Reference Manual 45 ...

Страница 46: ...ST AND AFRICA Emerson Automation Solutions Emerson FZE Jebel Ali Free Zone Dubai United Arab Emirates P O Box 17033 T 971 4 811 8100 F 971 4 886 5465 liquid csc emerson com ASIA PACIFIC Emerson Automation Solutions 1 Pandan Crescent Singapore 128461 Singapore T 65 777 8211 F 65 777 0947 liquid csc emerson com Linkedin com company Emerson Automation Solutions twitter com rosemount_news Facebook com...

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