Rosemount Quick Start Guide: 402 and 402VP Contacting Conductivity Sensors Manuals & Guides

Rosemount™ 402 and 402VP

Contacting Conductivity Sensors

Quick Start Guide

0825-0100-3402

0

Rev. AA

May 2019

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Essential Instructions

Read this page before proceeding!

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

E
dards. Because these sensors are sophisticated technical products, you MUST properly install, use,
and maintain them to ensure they continue to operate within their normal specifications. The
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

Quick Start Guide 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.

CAUTION

The 402 and 402VP sensors are retractable. BEFORE RETRACTING THE SENSOR, be absolutely certain the
process pressure is less than 64 psig (542 kPa abs) and the process temperature is at a safe level!

Quick Start Guide Table of Contents

00825-0100-3402 May 2019

Contents

Section 1: Specifications

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

Section 2: Installation

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

2.2 Sensor Installation ...............................................................................................3

2.3 Installation and Retraction of Sensor....................................................................4

Section 3: Wiring

3.1 Wiring for Rosemount 402/402VP .......................................................................7

Section 4: Calibration and Maintenance

4.1 Cleaning the Sensor...........................................................................................11

4.2 Calibrating the Sensor........................................................................................11

Section 5: Troubleshooting

5.1 Troubleshooting ................................................................................................13

Section 6: Accessories

6.1 Accessories........................................................................................................15

Table of Contents i

Table of Contents Quick Start Guide

May 2019 00825-0100-3402

ii Table of Contents

Quick Start Guide Specifications

00825-0100-3402 May 2019

Section 1: Specifications

1.1 Specifications

Table 1-1: Rosemount 402/402VP contacting conductivity sensor specifications

Wetted Materials

Electrodes Titanium

Insulator Glass Filled PEEK

Sensor tube 316 Stainless Steel

O-ring EPDM

Washer Neoprene

Temperature range

Standard 32 to 212 °F (0 to 100 °C)

Maximum pressure

200 psig (1481 kPa abs)

Maximum retraction pressure

64 psig (542 kPa abs)

Vacuum

At 1.6 in. Hg (5.2 kPa) air leakage is less than 0.005 SCFM (0.00014 m3/min)

Cell constants

0.01, 0.1, and 1.0/cm

Process connection

Sensor is inserted through 1¼ in. NPT full port ball valve

Cable

10 ft (3.1 m) standard; for longer cable lengths, choose option -60 (integral junction box) and order interconnecting cable
separately; 402VP Interconnecting VP6 cables sold separately. (See

Accessories).

Table 1-2: Weights and shipping weights

Sensor model With 10 ft. (3.1 m) cable With junction box

Rosemount 402 Contacting Conductivity Sensor 3 lb. (1.5 kg) 4 lb. (2.0 kg) 4 lb. (2.0 kg) 5 lb. (2.5 kg)

Rosemount 402VP Contacting Conductivity Sensor 3 lb. (1.5 kg) 4 lb. (2.0 kg)

1. Rounded up to the nearest 1 lb or 0.5 kg

Specifications 1

(1)

Weight Shipping

weight

Weight Shipping

weight

Specifications Quick Start Guide

May 2019 00825-0100-3402

Table 1-3: Retraction Assembly Specifications

Assembly includes

Ball valve, retraction body, and pipe nipple.

Wetted materials

all valve

B

ipple

N

acking rings

P

Packing bushing 303 Stainless Steel

Retraction body 316 Stainless Steel

Process connection

Ball valve 1¼ in. FNPT; Nipple 1¼ in. MNPT

Temperature

32 to 212 °F (0 to 100 °C)

Pressure

200 psig (1481 kPa abs) maximum

Maximum retraction pressure

64 psig (542 kPa abs) maximum

Vacuum

At 1.6 in. Hg (5.2 kPa) air leakage is less than 0.005 SCFM (0.00014 m3/min)

2 to 212 °F (0 to 100 °C)

3

16 Stainless Steel

3

raphite

G

2 Specifications