Honeywell DirectLine DL421 User manual

Industrial Measurement and Control

DirectLine® DL421 Sensor Module

for Durafet®II, Durafet®III,

Meredian® II, and HPW7000 pH

Electrodes

User Manual

70-82-25-102

Rev. 5

2/04

ii DirectLine® DL421 Sensor Module User Manual 2/04

Notices and Trademarks

February, 2004

Warranty/Remedy

Honeywell warrants goods of its manufacture as being free of defective materials and faulty

workmanship. Contact your local sales office for warranty information. If warranted goods are returned to

Honeywell during the period of coverage, Honeywell will repair or replace without charge those items it

finds defective. The foregoing is Buyer's sole remedy and is in lieu of all other warranties, expressed or

implied, including those of merchantability and fitness for a particular purpose. Specifications may

change without notice. The information we supply is believed to be accurate and reliable as of this

printing. However, we assume no responsibility for its use.

While we provide application assistance personally, through our literature and the Honeywell web site, it

is up to the customer to determine the suitability of the product in the application.

CE Conformity

This product is in conformance with the protection requirements of the following European Council

Directives: 89/336/EEC, the Electromagnetic Compatibility Directive and 73/23/EEC, the Low Voltage

Directive. Conformance of this product with any other “CE Mark” Directive(s) shall not be assumed.

ATTENTION

The emission limits of EN 61326 are designed to provide reasonable protection against harmful

interference when this equipment is operated in an industrial environment. Operation of this equipment in

a residential area may cause harmful interference. This equipment generates, uses and can radiate radio

frequency energy and may cause interference to radio and television reception when the equipment is

used closer than 30 m to the antenna(e). In special cases, when highly susceptible apparatus is used in

close proximity, the user may have to employ additional mitigating measures to further reduce the

electromagnetic emissions of this equipment.

Industrial Measurement and Control

Honeywell

1100 Virginia Ave.

Fort Washington, PA 19034

DirectLine is a registered trademark of Honeywell

Durafet and Meredian are U.S. registered trademarks of Honeywell

Other brands or product names are trademarks of their respective owners

Insert 70-82-10-01 should accompany this document.

2/04 DirectLine® DL421 Sensor Module User Manual iii

About This Document

Abstract

This manual contains all the information that is needed to install, configure, calibrate,

operate, and troubleshoot the DirectLine® Sensor. Insert 70-82-10-01, a quick

reference guide for configuring and calibrating the DL421, should accompany this

document.

Contacts

World Wide Web

The following lists Honeywell’s World Wide Web sites that will be of interest to our

customers.

Honeywell Organization WWW Address (URL)

Corporate http://www.honeywell.com

Industrial Measurement and Control http://www.honeywell.com/imc

International http://www.honeywell.com/Business/global.asp

Telephone

Organization Phone Number

United States and

Canada

Honeywell 1-800-423-9883

(215) 641-3610 Tech. Support

1-888-423-9883 Q&A Faxback

(TACFACS)

1-800-525-7439 Service

Symbol Definitions

The following table lists any symbols used in this document to denote certain conditions.

Symbol Definition

Earth Ground. Functional earth connection. NOTE: This connection shall be bonded to

Protective earth at the source of supply in accordance with national and local electrical

code requirements.

ATTENTION, Electrostatic Discharge (ESD) hazards. Observe precautions for handling

electrostatic sensitive devices

iv DirectLine® DL421 Sensor Module User Manual 2/04

Contents

1. INTRODUCTION....................................................................................................................1

1.1 Overview......................................................................................................................................... 1

1.2 Electronics Module ......................................................................................................................... 1

1.3 Operator Interface........................................................................................................................... 2

1.4 Specifications.................................................................................................................................. 3

1.5 Model Selection Guide ................................................................................................................... 4

2. INSTALLATION ..................................................................................................................... 5

2.1 Assembly and Wiring...................................................................................................................... 5

2.2 Integral Mounting............................................................................................................................ 7

2.3 Remote Mounting ........................................................................................................................... 8

2.4 Conduit connections ..................................................................................................................... 13

3. CONFIGURATION ............................................................................................................... 14

3.1 Overview....................................................................................................................................... 14

3.2 Configuration Set Up Procedure................................................................................................... 15

4. CALIBRATION.....................................................................................................................18

4.1 Calibration Diagnostics................................................................................................................. 18

4.2 Calibration Diagnostic Reset ........................................................................................................ 18

4.3 Calibration..................................................................................................................................... 19

4.4 Calibration in High Purity Water ................................................................................................... 22

5. OPERATION ........................................................................................................................ 23

5.1 Displays ........................................................................................................................................ 23

5.2 Diagnostic Error Messages .......................................................................................................... 25

5.3 Unit Reset ..................................................................................................................................... 26

6. SPARE PARTS....................................................................................................................27

7. APPENDIX: CE MARK APPLICATIONS ............................................................................ 30

8. SALES AND SERVICE ........................................................................................................ 32

2/04 DirectLine® DL421 Sensor Module User Manual v

Tables

Table 2-1 Assembly and Wiring Procedure for Field Wiring Connector___________________________ 6

Table 2-2 Integral Mounting Procedure (refer to Figure 2-3) __________________________________ 7

Table 2-3 Remote Mounting Procedure for Durafet II and Durafet III Electrodes __________________ 8

Table 2-4 Remote Mounting Procedure for Meredian II Electrodes_____________________________ 9

Table 2-5 Remote Mounting Procedure for HPW7000 Electrodes ____________________________ 10

Table 3-1 Buffer Groups and the pH standard values ______________________________________ 14

Table 3-2 Configuration Set Up Procedure ______________________________________________ 15

Table 4-1 Standard pH Buffer Values __________________________________________________ 20

Table 4-2 Zero (Standardization) Calibration Procedure ____________________________________ 21

Table 4-3 Slope Calibration Procedure _________________________________________________ 22

Table 4-4 High purity water calibration Procedure_________________________________________ 22

Table 5-1 Online Parameter Descriptions _______________________________________________ 23

Table 5-2 Display Navigation Procedure ________________________________________________ 24

Table 5-3 Online Diagnostic Errors ____________________________________________________ 25

Table 5-4 Factory Default Values _____________________________________________________ 26

vi DirectLine® DL421 Sensor Module User Manual 2/04

Figures

Figure 1-1 DirectLine® Sensor ________________________________________________________ 1

Figure 1-2 Electronics Module _________________________________________________________ 2

Figure 2-1 Cordset Connection and Wiring ________________________________________________ 5

Figure 2-2 Field Wiring Connector______________________________________________________ 6

Figure 2-3 Integral Mounting __________________________________________________________ 7

Figure 2-4 Remote Mounting _________________________________________________________ 11

Figure 2-5 Remote Mounting Hardware_________________________________________________ 12

Figure 7-1 Wiring for CE Mark Applications______________________________________________ 30

Introduction

2/04 DirectLine® DL421 Sensor Module User Manual 1

1. Introduction

1.1 Overview

The DirectLine® Sensor consists of an electronics module connected to a

Durafet® II, Durafet® III, Meredian® II or HPW7000 pH electrode that eliminates

the need for pre-amps, transmitters, and analyzers in pH applications.

The modular electronics design can be separated from the sensor, allowing the

sensor to be easily removed or replaced while retaining power to the electronics

module.

The DL421 electronics module is contained in a Nema Type 4x polysulfone

housing. The Module can be mounted as an integral unit directly connected to the

electrode or remotely using an electrode with a cable. The sealed plastic housing

has plug-in connections for the pH electrode and 4-20 mA cordset.

Figure 1-1 DirectLine® Sensor

1.2 Electronics Module

The electronics module is loop-powered by 16-42 Vdc and will modulate its supply

current from 4 mA to 20 mA, depending upon the pH value that is sensed by the

electrode. The transmitted loop current is compensated for temperature internally

using the standard Honeywell 8550 thermistor.

For submersion or special wiring applications, the remote electronics module is

compatible with the existing Durafet II, Meredian II or HPW7000 technology without

modification. A Durafet II or Meredian II cable length is supported with direct

connection to the electronics module.

A 4-20 mA output connection is provided via a 6m cordset or a customer supplied

cable used in combination with a field wiring connector.

Introduction

2 DirectLine® DL421 Sensor Module User Manual 2/04

Figure 1-2 Electronics Module

1.3 Operator Interface

The DirectLine® Sensor operator interface consists of three pushbuttons and one 4-

digit, 7-segment LCD display with 3 decimal points, plus (+), and minus (–) signs. It

is responsible for the display of measured values and configuration of parameter

values.

Introduction

2/04 DirectLine® DL421 Sensor Module User Manual 3

1.4 Specifications

Displayed pH 0-14 pH

Displayed Temperature Range –10 °C to +110 °C (14 °F to 230 °F)

Process Temperature –10 °C to +110 °C (14 °F to 230 °F)

Sensor Survivable Temperature Range

DurafetII & III

Meredian II

–10 °C to +130 °C (14 °F to 266 °F)

0 °C to 110 °C (32 °F to 230 °F)

Electronics Module Ambient Temperature –20 °Cto +85 °C (–4 °F to +185 °F)

Output Type 4-20 mA (2-wire loop powered)

Output Scale 0-14 pH

Output Calibration 4-20 mA

Mating Connector Rating Submersible to 6.1m (20’)

Output (Loop) 6m (19.7’) cordset or Shielded twisted pair with field

wiring connector

User Termination Tinned leads

Cable Lengths

Sensor:

Durafet II & Durafet III: 6.1m (20’) or 15.24m (50’)

Meredian II: 3.65m (12’) or 6.1m (20’)

HPW7000: .45m (1.5’) or 10.97m (36’)

Power 16-42 Vdc, 23mA max

Maximum load resistance: 250 ohms at 16 Vdc

600 ohms at 24 Vdc

1400 ohms at 42 Vdc

Local Display and Buttons LCD 4-digit, 7-segment

Engineering Units pH

degrees F

degrees C

Calibration Options 1 point Sample or 2 point Sample

Auto Buffer Recognition

Selections: US, NIST, EURO

Solution Temperature Compensation Selections: 0.00pH/10°C

–0.16pH/10°C

–0.32pH/10°C

Diagnostics Sensor and electronics

Case

Weatherproof, corrosion-resistant plastic housing, NEMA4X

Approvals CE Mark for Industrial Applications

UL – General Purpose for Process Control

CSA – General Purpose

FM – CLI, DIV1, Groups A, B, C & D and CLI, Zone 0

AEx ia IIC (IS)

FM – CLI, DIV2, Groups A, B, C & D and CLI, Zone 2,

Groups IIC (N.I. Field Wiring)

Remote Mounting Pipe, Wall, or DIN Rail

Dimensions H 123 mm (4.84”) x W 48 mm (1.89”) x D 46 mm (1.81”)

Weight Approximately 142 g (5.0 oz.)

Introduction

4 DirectLine® DL421 Sensor Module User Manual 2/04

1.5 Model Selection Guide

Instructions

Select the desired key number. The arrow to the right marks the selection available.

Make the desired selections from Tables I through IV using the column below the

proper arrow. A dot ( ) denotes availability.

Key Number I II III IV

_ _ _ _ _ -

-____

Key Number - DirectLine

Sensor Electronics Module

(Specify electrodes/cells/probes separately) Selection

pH For use with Durafet II, Meredian II & HPW7000 pH electrodes DL421

ORP For use with ORP electrode DL422

Conductivity For use with Contacting Conductivity Cells DL423

DO - PPM For use with Dissolved Oxygen ppm Probes DL424

DO - PPB For use with Dissolved Oxygen ppb Probes

TABLE I - OUTPUT CABLE

Cordset - 6m (19.7 ft.) - includes connector and cable - Note 2 E

Field Wiring Connector only - customer supplies cable only - Note 2

TABLE II - SENSOR CABLE/REMOTE CONNECTOR (between electronic module and electrode, sensor or probe)

Integral Mounting 0ddddd

Remote Mounting 6,096m (20 ft.) of sensor cable - Durafet II Remote Mtg w/PWB connector 1e

Cable - 6,096m (20 ft.) of sensor cable-Durafet III Remote Mtg w/Vario Pin connector-Note 3 7e

Durafet Onl

15,24m (50 ft.) of sensor cable - Durafet II Remote Mtg w/PWB connector e

15,24m (50 ft.) of sensor cable - Durafet III Remote Mtg w/Vario Pin connector-Note 3 e

Remote Mounting Remote Mounting Connector - Meredian II pH e

Connector (Cable Remote Mounting Connector - Meredian II ORP e

is supplied with Remote Mounting Connector - HPW7000 e

sensor or probe) Remote Mounting Connector - Conductivity e

Remote Mounting Connector - Dissolved Oxygen ee

TABLE III - REMOTE MOUNTING OPTIONS

Mounting Kit for None Integral unit - mounting not required A

Remote Mounting 2" (5,08 cm) Pipe mtg. bracket, wall mtg, & DIN Rail clip B

TABLE IV - OPTIONS

Tagging None 00 _ _

SS Customer ID Tag - 3 lines w/22 characters/line SS _ _

Certificates None _ _ 00

Calibration & Conformance _ _ CC

No cable or connector required

Mounting F

None (replacement module or customer supplied output cable)-Note 1

Availability

Output Cable for

Integral or Remote

DL425

Notes:

1Customers may procure their own output cordsets from the vendors listed below.

2Customers may make their own 4-20 mA output cordset using a 2-wire twisted shielded pair,

and M12 field wiring connector procured from one of the vendors listed below.

Use only UV rated outdoor cable to maintain NEMA 4 rating.

Phoenix Contact Turck

Cordset SAC-3P-5.0-PUR/M12FSSH Stainless RKV4T-6/S618

M12 Field Wiring Connector SACC-M12FS-4CON-PG7 B8141-0

Cable

3Durafet III cables with Vario Pin connector require Durafet III electrode with Vario Pin connector

RESTRICTIONS

Table

ORDERING INSTRUCTIONS:

1. Part numbers are provided to facilitate Distributor Stock.

2. Orders may be placed either by model selection or by part number.

3. Part numbers are shown within the model selection tables to assist with compatibility information.

4. Orders placed by model selection are systematically protected against incompatibility.

5. Compatibility assessment is the responsibility of the purchaser for orders placed by part number.

6. Items labeled as N/A are not available via the stocking program and must be ordered by model selection.

2-wire twisted shielded pair

Restriction

Letters SelectionSelection

III B

Available Only With Not Available With

IIl A

Table

Table of contents

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