Rosemount Analytical 3800 Operating Manual

Instruction Manual

IQ-MAN-3800

L

Rev. D

April 2017

Rosemount

pH Sensors

™

3800

asgkas

h

Essential Instructions

Read this page before proceeding!

Emerson designs, manufactures and tests its products to meet many national and international stan-

dards. Because these sensors are sophisticated technical products, you MUST properly install, use,

nd maintain them to ensure they continue to operate within their normal specifications. The

a
following instructions MUST be adhered to and integrated into your safety program when installing,
using, and maintaining Rosemount products. Failure to follow the proper instructions may cause
any one of the following situations to occur: loss of life; personal injury; property damage; damage
to this sensor; and warranty invalidation.

• 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.

• Inform and educate your personnel in the proper installation, operation, and maintenance
of the product.

• Install your equipment as specified in the Installation Instructions of the appropriate
Instruction Manual and per 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 the safe operation of your process at risk, and VOID YOUR WARRANTY.
Third-party substitutions may result in fire, electrical hazards, or improper operation.

• Ensure that all equipment doors are closed and protective covers are in place, except when
maintenance is being performed by qualified persons, to prevent electrical shock and
personal injury.

The information contained in this document is subject to change without notice.

CAUTION

Sensor/Process Application Compatibility

The wetted sensor materials may not be compatible with process composition and operating
conditions. Application compatibility is entirely the responsibility of the user.

WARNING

Do not exceed temperature and pressure limitations of 284 °F (140 °C) and 72 psig (600 kPa, 6 bar).

WARNING

Before removing the sensor, be absolutely certain that the process pressure is reduced to 0 psig and
the process temperature is lowered to a safe level.

CAUTION

Internal electrolyte fill solution may cause skin or eye irritation.

CAUTION

Special Conditions for Safe Use

1. All pH sensors have a plastic enclosure which must only be cleaned with a damp cloth to avoid the

danger due to a build up of an electrostatic charge.

. All pH sensor models are intended to be in contact with the process fluid and may not meet the 500V

2
r.m.s. a.c. test to earth.

This must be taken into consideration at installation.

About This Document

This manual contains instructions for installation and operation of the Rosemount 3800 pH
Sensors.

The following list provides concerning all revisions of this document.

Rev. Level Date Notes

D 04/17 Reformatted to reflect the latest Emerson documentation style

Wiring Diagrams, and EC Declaration of conformity.

Instruction Manual Table of Contents

LIQ-MAN-3800 April 2017

Contents

Section 1: Specifications

1.1 Specifications ......................................................................................................1

1.2 Product Certifications ..........................................................................................2

Section 2: Installation

2.1 Unpacking and Inspection ...................................................................................3

2.2 Storage................................................................................................................3

2.3 Electrode Preparation ..........................................................................................3

Section 3: Wiring

3.1 Wiring for Rosemount 3800.................................................................................5

Section 4: Calibration

4.1 Two Point Buffer Calibration.................................................................................7

4.2 Recommended pH Sensor Standardization ..........................................................7

Section 5: Maintenance

5.1 Maintenance........................................................................................................9

Section 6: Accessories

6.1 Accessories........................................................................................................11

EC Declaration of Conformity.............................................................................13

Intrisicallly Safe Sensor Installation Drawing - FM ................................15

Table of Contents i

Table of Contents Instruction Manual

April 2017 LIQ-MAN-3800

ii Table of Contents

Instruction Manual Specifications

LIQ-MAN-3800 April 2017

Section 1: Specifications

1.1 Specifications

Table 1-1: Rosemount 3800 sensor specifications

Range

0 to 14 pH

Temperature range

up to 221 °F (steam up to 284 °F) [up to 105 °C (steam up to 140 °C)]

Temperature sensor

Pt 100

Wetted materials

Glass, ceramic and EPDM O-ring USP VI

Reference junction

Single ceramic junction

Dimensions

12 mm OD, shaft length -01= 120 mm, -02 = 225 mm , -03 = 325 mm

Electrolyte

Gelled polymer

Cable connector

Coaxial S8

Process connector

Pg 13.5 connector

Remarks

Suitable for all Rosemount pH-instruments. Quality certification includes list of wetted materials and calibration records

Specifications 1