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Quick Start Guide

00825-0100-3900, Rev AA

November 2020

Rosemount

 3900/3900VP

General Purpose pH/ORP Sensors

Summary of Contents for Rosemount 3900

Page 1: ...Quick Start Guide 00825 0100 3900 Rev AA November 2020 Rosemount 3900 3900VP General Purpose pH ORP Sensors ...

Page 2: ...applicable local and national codes Connect all products to the proper electrical and pressure sources To ensure proper performance use qualified personnel to install operate update program and 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 ...

Page 3: ...ause significant damage to and or misconfiguration of end users equipment This could be intentional or unintentional and needs to be protected against Physical security is an important part of any security program and fundamental to protecting your system Restrict physical access by unauthorized personnel to protect end users assets This is true for all systems used within the facility CAUTION Spe...

Page 4: ...s 26 Rosemount pH ORP sensor s product certifications 28 Declaration of Conformity 35 China RoHS table 37 Intrinsically safe sensor installation drawing FM 38 Quick Start Guide November 2020 4 Emerson com Rosemount ...

Page 5: ...in Calibrate and maintain to determine that the sensor calibrates properly 1 2 Prepare electrode Procedure 1 Remove electrode from shipping container 2 Remove the protective boot covering the electrode bulb 3 Rinse away salt film with clean water then shake the electrode so that the internal solution fills the bulb thus removing any air trapped there 1 3 Install sensor Procedure 1 Wrap the sensor ...

Page 6: ...rtical Figure 1 2 Rosemount 3900 3900VP Sensor Dimensions A Temperature comp solution ground B Reference junction C pH electrode D in male national pipe thread MNPT E 1 in MNPT F Wrench flats 1 30 in across Quick Start Guide November 2020 6 Emerson com Rosemount ...

Page 7: ...w shown Note Install sensor at least ten degrees above the horizon Table 1 1 Horizontal Pipe Tee PN 2002011 Pressure Temperature Ratings psig kPa F C 150 1136 150 65 128 984 160 71 102 805 170 77 80 653 180 82 57 494 200 93 48 432 210 99 November 2020 Quick Start Guide Quick Start Guide 7 ...

Page 8: ...ing Flow cell is polycarbonate with in female national pipe thread FNPT fittings Wetted materials Body and nut polyester polycarbonate Fittings 316 stainless steel Seals silicone Flow cell ratings Temperature 32 to 158 F 0 to 70 C Max pressure 90 pisg 721 kPa Quick Start Guide November 2020 8 Emerson com Rosemount ...

Page 9: ...Flow rate 2 to 5 gph 7 6 to 18 9 LPH Sensor threaded connection 24091 00 1 in national pipe thread NPT adapter 24091 02 in NPT adapter November 2020 Quick Start Guide Quick Start Guide 9 ...

Page 10: ... in polypropylene G Stainless set screw for adjustable spray nozzle height H 2 in NPT threads I Sensor J 1 in PVC coupling for submersible applications supplied by others K 1 in PVC or stainless conduit supplied by others L Cable M Timer supplied by others or use timer feature in Rosemount instrument Note Sensor must be installed at least 10 degrees above the horizon Quick Start Guide November 202...

Page 11: ... air Use a solenoid valve to control flow through the cleaner Note You can alos use the jet spray cleaner with the handrail mounting assembly PN 11275 01 not shown or mount it through the conduit as shown in Figure 1 6 Figure 1 6 Jet Spray Cleaner with pH Sensor November 2020 Quick Start Guide Quick Start Guide 11 ...

Page 12: ...Figure 1 7 Low Flow Panel PN SQP10077 LQD Quick Start Guide November 2020 12 Emerson com Rosemount ...

Page 13: ...a 1 Temperature 32 to 122 F 0 to 50 C 1 The minimum inlet pressure is required to open a check valve which prevents the flow cell from draining if sample flow is lost Removing the check valve lowers the inlet pressure requirement to a few feet of water head November 2020 Quick Start Guide Quick Start Guide 13 ...

Page 14: ...r to Rosemount 56 1056 1057 1066 Transmitter Wiring Wire function Wire color Connects to Earth ground Green Ground Resistance temperature device RTD return White RTD return return RTD sense White red RTD sense sense RTD in Red RTD in Solution ground Blue Ground solution ground 5 Vdc Inner drain 5 Vdc V sensor 5 Vdc White gray 5 Vdc V sensor mV pH shield Clear pH shield shield guard mV pH in Orange...

Page 15: ...00 Wiring Wire color sensor to junction box Junction box terminal number Wire color junction box to transmitter Transmitter terminal N A 1 N A N A Green 2 Inner drain Earth ground White 3 White RTD return White red 4 White red RTD sense Red 5 Red RTD in N A 6 N A N A Gray 7 Gray Reference in Blue 8 Blue Solution ground Clear 9 White black mV pH shield Orange 10 Black mV pH in White gray 11 Brown 5...

Page 16: ...r drain No connection N A Earth ground Green Ground RTD return White RTD return return RTD sense White red RTD sense sense RTD in Red RTD in N A N A 5 Vdc V sensor N A N A 5 Vdc V sensor Solution ground Blue Ground solution ground mV pH shield Clear pH shield shield guard mV pH in Orange pH pH in Reference shield White gray Reference shield shield guard Reference Gray Reference reference in Quick ...

Page 17: ... color sensor to junction box Junction box terminal number Wire color junction box to transmitter Wire function Inner drain N A N A No connection N A 1 N A N A Green 2 Clear Earth ground White 3 White RTD return White red 4 White red RTD sense Red 5 Red RTD in White gray 6 White gray Reference shield Gray 7 Gray Reference in Blue 8 Blue Solution ground Clear 9 White black mV pH shield Orange 10 Bl...

Page 18: ...mount 5081 Transmitter Wiring Wire color Wire function Terminal block number N A N A 1 Green N A Ground White RTD return 3 White red RTD sense 4 Red RTD in 5 N A N A 6 Gray Reference in 7 Blue Solution ground 8 Clear mV pH shield 9 Orange mV pH in 10 White gray 5 Vdc 11 Inner drain 5 Vdc 12 Quick Start Guide November 2020 18 Emerson com Rosemount ...

Page 19: ... Wiring Wire color sensor to junction box Junction box terminal number Wire color junction box to terminal block Wire function N A 1 N A N A N A 2 N A Ground White 3 White RTD return White red 4 White red RTD sense Red 5 Red RTD in N A 6 N A N A Gray 7 Gray Reference in Blue 8 Blue Solution ground Clear 9 White black mV pH shield Orange 10 Black mV pH in White gray 11 Brown 5 Vdc Inner drain 12 Gr...

Page 20: ...81 Transmitter Wiring Wire color Wire function Terminal block number Inner drain No connection N A Green N A Ground White RTD return 3 White red RTD sense 4 Red RTD in 5 White gray Reference shield 6 Gray Reference in 7 Blue Solution ground 8 Clear mV pH shield 9 Orange mV pH in 10 N A N A 11 N A N A 12 Quick Start Guide November 2020 20 Emerson com Rosemount ...

Page 21: ...sensor to junction box Junction box terminal number Wire color junction box to terminal block Wire function Inner drain no connection 1 N A N A Green 2 Clear Ground White 3 White RTD return White red 4 White red RTD sense Red 5 Red RTD in White gray 6 White gray Reference shield Gray 7 Gray Reference in Blue 8 Blue Solution ground Clear 9 White black mV pH shield Orange 10 Black mV pH in N A 11 Br...

Page 22: ... the value of the buffer 2 Once the transmitter has acknowledged the first buffer rinse the buffer solution off the sensor with distilled or deionized water 3 Repeat Step 1 and Step 2 using the second buffer solution The theoretical slope value according to the Nernst equation for calculating pH is approximately 59 1 mV pH Over time the sensor will age both in the process and in storage which will...

Page 23: ... of an accident consult a doctor immediately 2 4 Calibrate oxidation reduction potential ORP Prerequisites After making an electrical connection between the sensor and the transmitter obtain a standard solution of saturated quinhydrone PN R508 8OZ 460 10 mV You can also make the solution by simply adding a few crystals of quinhydrone to either pH 4 or pH 7 buffer Quinhydrone is only slightly solub...

Page 24: ...se and install in the process 2 5 Maintain oxidation reduction potential ORP sensors Electrodes should respond rapidly Sluggishness offsets and erratic readings are indicators that the electrodes may need to be cleaned or replaced 1 To remove oil deposits clean the electrode with a mild non abrasive detergent 2 To remove scale deposits soak electrodes for one to five minutes in a 5 percent hydroch...

Page 25: ...ft 4 6 m VP8 cable 24281 01 25 ft 7 6 m VP8 cable 24281 02 2 5 ft 0 8 m VP8 cable 24281 03 50 ft 15 2 m VP8 cable 24281 04 100 ft 30 5 m VP8 cable 24281 05 4 ft 1 2 m VP8 cable 24281 06 10 ft 3 m VP8 cable 24281 07 20 ft 6 1 m VP8 cable 24281 08 30 ft 9 1 m VP8 cable 9200273 Extension cable 11 conduit shielded unprepped per foot 9210012 Buffer solution pH 4 01 16 oz 473 ml 9210013 Buffer solution ...

Page 26: ... platinum Solution ground Stainless steel Reference junction PFTE Maximum pressure 100 psig 790 kPa at 212 F 100 C CRN rating 60 psig 413 7 kPa to 212 F 100 C Operating temperature 14 to 212 F 10 to 100 C Automatic temperature compensation 14 to 212 F 10 to 100 C Conductivity Responds to changes in pH at a minimum conductivity of 0 1 µS cm when used with the low flow panel PN SQP10077 LQD The samp...

Page 27: ...preamp VP8 cable Use 24281 XX 2 5 ft 0 8 m to 100 ft 31 m see Accessories NOTICE The Rosemount 3900 3900VP sensor responds to changes in pH at a minimum conductivity of 0 1 µS cm in deionized water when used with low flow panel PN SQP10077 LQD Sample flow rate must be controlled to 7 6 L hr 2 gph The offset is approximately 0 2 pH after three months at ambient temperature November 2020 Quick Start...

Page 28: ... NEC and the Canadian Electrical Code CEC permit the use of Division marked equipment in Zones and Zone marked equipment in Divisions The markings must be suitable for the area classification gas and temperature class This information is clearly defined in the respective codes 5 4 USA 5 4 1 FM Intrinsic Safety Certificate FM17US0198X Standards FM Class 3600 1998 FM Class 3610 2010 FM Class 3611 20...

Page 29: ...e apparatus listed above may store electrostatic charge and become a source of ignition Clean surface should only be done with a damp cloth 2 Sensors without Model 1700702 preamplifier simple apparatus a Model 385 a b c d e Retractable pH ORP sensor b Model 385 a b c Triple junction pH ORP sensor c Model 389 a b c d e pH ORP sensor d Model 389VP a b c pH ORP sensor e Model 396 a b c Submersion ins...

Page 30: ...m sterilizable pH sensors y Model 3900 a b c General purpose pH ORP sensor z Model 3900VP a b General purpose pH ORP sensor The polymeric surface of all the apparatus listed above may store electrostatic charge and become a source of ignition Clean surface should only be done with a damp cloth 5 4 2 CSA Intrinsic Safety Certificate 70164066 Standards C22 2 No 0 10 C22 2 No 0 4 M2004 C22 2 No 94 M1...

Page 31: ...Markings Preamplifier assembly Class I Division 1 Groups ABCD Class II Division 1 Groups EFG Class III Class I Division 2 Groups ABCD ambient temperature rating 20 C to 60 C Ex ia IIC T6 Class I Zone 0 AEx ia IIC T6 Sensor apparatus with preamplifier Class I Division 1 Groups ABCD Class II Division 1 Groups EFG Class III Class I Division 2 Groups ABCD ambient temperature rating 20 C to 60 C Ex ia ...

Page 32: ...ken during installation to protect the sensor from the risk 3 External connections to the sensor must be suitably terminated and provide a degree of protection of at least IP20 4 All pH ORP sensor models are intended to be in contact with the process fluid and may not meet the 500V r m s test to earth This must be taken into consideration at installation 5 7 International 5 7 1 IECEx Intrinsic Saf...

Page 33: ...on at installation 5 8 China 5 8 1 Nepsi Intrinsic Safety Certificate GYB19 1035X Standards GB 3836 1 2010 GB 3836 4 2010 GB 3836 20 2010 Markings Ex ia II C T4 Ga 20 C to 60 C Specific Conditions for Safe Use X 1 It is strictly forbidden to rub the plastic shell parts of the product to prevent the risk of static ignition 2 When the product shell contains light metals it should be prevented in a z...

Page 34: ...Ex ia IIC T5 Ga 20 C to 40 C Specific Condition for Safe Use X See certificate for special conditions Quick Start Guide November 2020 34 Emerson com Rosemount ...

Page 35: ...6 Declaration of Conformity November 2020 Quick Start Guide Quick Start Guide 35 ...

Page 36: ...Quick Start Guide November 2020 36 Emerson com Rosemount ...

Page 37: ...7 China RoHS table November 2020 Quick Start Guide Quick Start Guide 37 ...

Page 38: ...A Intrinsically safe sensor installation drawing FM Quick Start Guide November 2020 38 Emerson com Rosemount ...

Page 39: ...November 2020 Quick Start Guide Quick Start Guide 39 ...

Page 40: ... MIDDLE EAST AND AFRICA Emerson Automation Solutions Emerson FZE Jebel Ali Free Zone Dubai United Arab Emirates P O Box 17033 971 4 811 8100 971 4 886 5465 RMTNA RCCPO Emerson com ASIA PACIFIC Emerson Automation Solutions 1 Pandan Crescent Singapore 128461 Republic of Singapore 65 6 777 8211 65 6 777 0947 RMTNA RCCPO Emerson com LinkedIn com company Emerson Automation Solutions Twitter com rosemou...

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