Emerson Rosemount 3900 Instruction Manual
General purpose ph/orp sensor
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Summary of Contents for Emerson Rosemount 3900
- Page 1 Instruction Manual LIQ-MAN-3900 Rev. G April 2017 Rosemount 3900/3900VP ™ General Purpose pH/ORP Sensor...
- Page 2 hasgkas...
- Page 3 • Read all instructions prior to installing, operating, and servicing the product. • If you do not understand any of the instructions, contact your Emerson representative for clarification. • Follow all warnings, cautions, and instructions marked on and supplied with the product.
- Page 4 About This Document This manual contains instructions for installation and operation of the Rosemount 3900/3900VP pH/ORP sensors. The following list provides the revision history for all changes of this document. Rev. Level Date Notes 08/2016 Updated information with new Emerson Style Guidelines, Added Ordering Information, Added Accessories Information.
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Page 5: Table Of Contents
Instruction Manual Table of Contents LIQ-MAN-3900 April 2017 Contents Section 1: Specifications Specifications ......................1 Product Certifications ..................2 Ordering Information...................3 Section 2: Installation Storage........................5 Electrode Preparation ..................5 Sensor Installation ....................5 Section 3: Calibration and Maintenance pH Two Point Buffer Calibration .................13 Recommended pH Sensor Standardization ............13 pH Electrode Maintenance .................13 ORP Calibration ....................14... - Page 6 Table of Contents Instruction Manual April 2017 LIQ-MAN-3900 Table of Contents...
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Page 7: Section 1: Specifications
VP8 Cable: Use 24281-XX, 2.5 ft (0.8m) to 100 ft (31m) (see accessories) NOTICE The Rosemount 3900/3900VP Sensor responds to changes in pH at a minimum conductivity of 0.1 S/cm in deionized water. Sample flow rate must be controlled to 2 gph (7.6L/hr). The offset is approximately -0.2 pH after 3 months at ambient temperature. -
Page 8: Product Certifications
Section 1: Specifications Instruction Manual April 2017 LIQ-MAN-3900 Product Certifications IECEx 3900/3900VP without preamp (pH and ORP) – Ex ia IIC T4 Ga (-20 °C ≤ Ta ≤ +60 °C) 3900/3900VP with SMART preamp (pH only) – Ex ia IIC T4 Ga (-20 °C ≤ Ta ≤ +60 °C) Per standards IEC60079-0 : 2011, IEC 60079-11 : 2011 ATEX 3900/3900VP without preamp (pH and ORP) –... -
Page 9: Ordering Information
April 2017 Ordering Information The Rosemount 3900/3900VP General Purpose pH/ORP sensors feature a chemically resistant Ryton plastic body, along with a built-in solution ground for advanced diagnostics and a Pt-100 RTD for temperature compensation. These sensors are available with either an integral cable connection or Variopol (VP8) connector. - Page 10 Section 1: Specifications Instruction Manual April 2017 LIQ-MAN-3900 Specifications...
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Page 11: Section 2: Installation
Instruction Manual Section 2: Installation LIQ-MAN-3900 April 2017 Section 2: Installation Storage It is recommended that electrodes be stored in their original shipping containers until needed. Do not store at temperatures below 14 °F (-10 °C). Electrodes should be stored with a protective cap containing KCl solution (PN 9210342). For overnight storage, immerse the sensor in tap water or 4 pH buffer solution. - Page 12 Section 2: Installation Instruction Manual April 2017 LIQ-MAN-3900 Figure 2-2 Rosemount 3900/3900VP Sensor Dimensions WRENCH FLATS 1 IN MNPT 1.30 IN ACROSS 3/4 IN MNPT 1 IN MNPT TEMP COMP SOLN GND REFERENCE JUNCTION pH ELECTRODE 2.33 6.91 8.63 Figure 2-3 Typical flow through insertion installation using PN 2002011 Pipe Tee...
- Page 13 Instruction Manual Section 2: Installation LIQ-MAN-3900 April 2017 Figure 2-5 Jet Spray Cleaner PN 12707-00 The jet spray cleaner eliminates routine, manual sensor maintenance by cleaning the sensor with water or compressed air. Flow through the cleaner can be controlled by a solenoid valve. Note: The jet spray cleaner can be used with handrail mounting assembly (PN 11275-01, not shown) or can be mounted through conduit as shown...
- Page 14 For additional wiring information on this product, including sensor combinations not shown here, please refer to the Liquid Transmitter Wiring Diagrams. Figure 2-7: Rosemount 3900/3900VP with Preamplifier to Rosemount 56/1056/1057/1066 Transmitter Wiring Figure 2-8: Rosemount 3900/3900VP with Preamplifier to Rosemount 56/1056/1057/1066 Transmitter, Junction Box without Preamplifier (PN 23550-00) Wiring...
- Page 15 Instruction Manual Section 2: Installation LIQ-MAN-3900 April 2017 Figure 2-9: Rosemount 3900/3900VP without Preamplifier to Rosemount 56/1056/1057/1066 Transmitter Wiring Figure 2-10: Rosemount 3900/3900VP without Preamplifier to Rosemount 56/1056/1057/1066 Transmitter, Junction Box with Preamplifier (PN 23555-00) Wiring Installation...
- Page 16 Section 2: Installation Instruction Manual April 2017 LIQ-MAN-3900 Figure 2-11: Rosemount 3900/3900VP with Preamplifier to Rosemount 5081 Transmitter Wiring Figure 2-12: Rosemount 3900/3900VP with Preamplifier to Rosemount 5081 Transmitter, Junction Box without Preamplifier (PN 23550-00) Wiring Installation...
- Page 17 Instruction Manual Section 2: Installation LIQ-MAN-3900 April 2017 Figure 2-13: Rosemount 3900/3900VP without Preamplifier to Rosemount 5081 Transmitter Wiring Figure 2-14: Rosemount 3900/3900VP without Preamplifier to Rosemount 5081 Transmitter, Junction Box with Preamplifier (PN 23555-00) Wiring Installation...
- Page 18 Section 2: Installation Instruction Manual April 2017 LIQ-MAN-3900 Installation...
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Page 19: Section 3: Calibration And Maintenance
Instruction Manual Section 3: Calibration and Maintenance LIQ-MAN-3900 April 2017 Section 3: Calibration and Maintenance pH Two Point Buffer Calibration Select two stable buffer solutions, preferably pH 4.0 and 7.0 (pH buffers other than pH 4.0 and pH 7.0 can be used as long as the pH values are at least two pH units apart). NOTICE A pH 7 buffer solution reads a mV value of approx. -
Page 20: Orp Calibration
Section 3: Calibration and Maintenance Instruction Manual April 2017 LIQ-MAN-3900 CAUTION Hydrochloric acid is toxic and highly corrosive. Avoid skin contact; wear protective gloves. Use only in a well ventilated area. Do not inhale fumes. In case of an accident, consult a doctor immediately. ORP Calibration After making an electrical connection between the sensor and the instrument, obtain a standard solution of saturated quinhydrone PN R508-8OZ (475mV). -
Page 21: Section 4: Accessories
Instruction Manual Section 4: Accessories LIQ-MAN-3900 April 2017 Section 4: Accessories Table 4-1 Accessories Information Part Number Description 24281-00 15 ft. cable with mating VP8 connector 24281-01 25 ft. cable with mating VP8 connector 24281-02 2.5 ft. cable with mating VP8 connector 24281-03 50 ft. - Page 22 Section 4: Accessories Instruction Manual April 2017 LIQ-MAN-3900 Accessories...
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Page 23: Ec Declaration Of Conformity
Instruction Manual EC Declaration of Conformity LIQ-MAN-3900 April 2017 Note: Please see website for most recent Declaration. EC Declaration of Conformity... - Page 24 EC Declaration of Conformity Instruction Manual April 2017 LIQ-MAN-3900 EC Declaration of Conformity...
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Page 25: Fm Installation
Instruction Manual FM Installation LIQ-MAN-3900 April 2017 Intrisicallly Safe Sensor Installation Drawing - FM FM Installation... - Page 26 ©2017 Emerson. All rights reserved. Emerson The Emerson logo is a trademark and service mark of Emerson Electric Co. Rosemount is a mark of 8200 Market Blvd. one of the Emerson family of companies. All other marks are the property of their respective Chanhassen, MN 55317, owners.