Honeywell XNX Operating Manual

XNX

● Table of Contents

● Safety and Information

● Introduction

● Specications

● Control Drawings

● HART

Protocol

Technical

Manual

● Installation and Operation

● Calibration

● Maintenance

● Warnings/Faults

● Modbus Protocol

● Warranty

● Index

This page is intentionally left blank

XNX Universal Transmitter

TOC

Table of Contents

Safety and Information ��5

Warnings��6 Hazardous Location Installation Requirements ��8 Special Conditions for Safe Use ��8 Cautions ��8 Notes ��8 Information ��9 Contacting Honeywell Analytics ��9 Revision History ��9

Introduction ��10

Product Description ��11

The Transmitter ��11 20 mA/HART Output ��12 Communications ��12 Certifications ��12 Patents ��13 Glossary ��13

Product Overview ��14

Enclosure ��14 Cover ��15 POD ��15

Options ��16

Local HART ��16 Relays ��16 Modbus ��17 FOUNDATION Fieldbus ��17 Accessories ��17

The Front Panel ��20

Controls and Navigation ��21 The General Status Screen ��21 Entering the Menu ��22

Displaying Transmitter Information ��23 Main Menu ��24 Menu Navigation ��25

Installation and Operation ��29

Sensor Mounting and Location ��30

Mounting the T ransmitter ��30

Wiring the Transmitter ��32

General Wiring Considerations ��33

Loading ��33

Isolation ��33

Circuit Protection ��33

Distance Considerations for Installation��33

Single Transmitter ��34

Multiple Transmitters Connected to a Single Power Source 34

Multiple Transmitters Connected in a “Daisy-Chain”

Configuration ��34

Power Source Selection ��35

Wire Selection ��35

Single Transmitter Distances ��36

Daisy-Chained Transmitter Distances ��36

POD Connections ��38

4-20mA Output, Common Connections, and Power ��39

Settings ��39

FOUNDATION Fieldbus Wiring ��41

Terminal Block Connections ��41

Table of Contents

1

XNX Universal Transmitter

✓

X

?

Table of Contents

EC Personality Wiring ��42 Electrochemical Sensor Installation ��43 EC Sensor Remote Mounting Kit ��44 mV Personality Wiring ��46 mV Remote Sensor Mounting ��47 IR Personality Wiring ��49 Searchpoint Optima Plus/Searchline Excel Connections ��50 Connecting Generic mA Devices ��50 Attaching the Searchpoint Optima Plus to the Transmitter �53 Searchline Excel/Searchpoint Optima Plus Remote

Installation ��53 Searchpoint Optima Plus/Searchline Excel Wiring ��54

Options ��56

Local HART Interface ��56 Point-to-Point Mode ��56 Multidrop Mode ��57 Cable Length ��58 Relays ��58 Modbus ��59 FOUNDATION Fieldbus ��60 Powering the Transmitter the First Time ��61 IR Units Configured for Searchline Excel ��62 Remote Calibration of MPD Sensors ��63

Configuring the Transmitter ��63

Configure Menu ��64

Select Language ��64

Set Date and Time ��65

Set mV Sensor Type ��66

Set mA Sensor Type ��67

Gas Selection ��67 Changing the Gas or Units Name ��69 Gas Selections and Alarm Limits Based on mV Sensor Type

��69

Range and Alarms ��74 Latching/Non-Latching Alarms ��77

Set Units ��78

mA Levels ��79 Calibration Interval ��79

Accept New Sensor Type ��80

Beam Block Options ��81

Path Length ��82

Unit ID ��83

Relay Options ��84

Fieldbus Options ��85

Configure Security ��86

Verifying the Configuration��87

Test Menu ��87

Inhibit ��87

Force Relays ��89

Alarm/Fault Simulation ��89

Information Menu ��91

Alarm/Fault Status ��91

Transmitter Data ��91

Transmitter Status ��92

Sensor Data ��92

Sensor Status ��93

Table of Contents

2

XNX Universal Transmitter

?

Table of Contents

Gas Data ��93

Range/Alarm Settings��94

mA Level Settings ��94

Fieldbus Settings ��95

Relay Data ��95

Event History ��97

Calibration ��100

Gas Calibration Menu��101

Zero and Span Calibration for EC/mV Sensors and Searchpoint Optima ��102

Using the Calibration Cup ��105 Zero and Span Calibration of EC Sensors ��105 Zero and Span Calibration for MPD Sensors ��110 EC Sensor Operational Life ��113 Functional Gas T esting (Bump T esting) ��113

Calibrate mA Output ��114

Align Excel (Searchline Excel) ��115

Soft Reset ��115

Maintenance ��116

MPD Sensor Cartridge Replacement ��117 EC Sensor Cartridge and Cell Replacement ��118

Warnings and Faults ��120

Warning Messages ��121 Notes ��125 Fault Messages ��126 Notes ��133 Informational Messages ��135

Specifications ��137

Product Specifications ��138

SENSOR DATA ��140 Operating and Storage Conditions for Performance Tested

EC Cartridges ��140

Detectable Gases and Performance ��141 EC Sensor Performance Data, Factory Mutual Verified ��142 EC Sensor Performance Data, DEKRA EXAM Verified ��143 Other EC Sensors ��144

Footnotes (see table on previous page): ��145 Notes (see table on previous page): ��145

EC Sensor Cross-sensitivity ��146

Notes ��153

MPD Sensor Performance Data ��154

Notes ��154

EN60079-29-1 Performance Approved Gases for mV Sensor Types ��155

Notes ��155

Other Sensor Performance Data ��155 Certifications by Part Number Series ��156

Notes ��157

Certification Labels ��161 Product Identification ��163 EC Replacement Sensors ��164 EC Replacement Cells ��165 MPD (Multi Purpose Detector) ��166 Accessories/Spares ��167 EC Declaration of Conformity ��171 ��171

Table of Contents

3

XNX Universal Transmitter

Table of Contents

Control Drawings ��172

XNX UL/CSA/FM/ATEX/IECEx/INMETRO/RUSSIA ��173 Remote Sensor Mount ��177

HART Protocol ��178

HART Interface ��179 HART Sink, Source, and Isolated Wiring ��182 DevComm PC-based HART Interface ��185 Functions ��186

Configuration Summary ��186 Information Screens ��187 Event History ��187 Test ��187 Calibration ��188 Configuration ��188

Handheld Online Menus ��189

Modbus Protocol ��191

Modbus and the XNX transmitter ��192 Modbus Registers ��194

Warranty ��198

Warranty Statement ��199

Warranty Conditions ��199 Consumer Claims ��199

Index ��200

Table of Contents

4

XNX Universal Transmitter

Safety and Information

5

XNX Universal Transmitter

WARNING

!

Read and understand this manual before installing, operating, or maintaining the transmitter. Pay particular attention to these warnings and cautions. All of the warnings and cautions shown here are repeated in the appropriate sections of the manual.

• Warnings identify hazardous or unsafe practices which could result in severe injury or death.

Warnings

• Installation must be in accordance with the recognized standards of the appropriate authority in the country concerned.

• Any work on the interior of the detector must be conducted only by Honeywelltrained personnel

• Before carrying out any work, ensure that local regulations and site procedures are followed. Appropriate standards must be followed to maintain the overall certiﬁcation of the sensor.

• To reduce the risk of ignition in hazardous atmospheres, disconnect the equipment from the supply circuit before opening the sensor enclosure. Keep the assembly tightly closed during operation. Conduit runs must have a seal ﬁtting connected within 18 inches (45 cm) of the enclosure.

• Never open the XNX enclosure under power unless the area is known to be nonhazardous.

• Do not use the XNX Universal Transmitter in oxygen-enriched atmospheres. In oxygen-enriched atmospheres, the electrical safety is not guaranteed.

• The sensor must be earthed/grounded for intrinsic safety, electrical safety and to limit the effects of radio frequency interference. Earth/ground points are provided inside and outside the unit. EMI note for applications using shielded cable: Cable shield must provide 90% coverage of the wiring. Cable shield terminations must be made at the cable glands with suitable EMI type glands. Avoid terminating cable shields at the Earth ground lug inside the XNX enclosure. In cases where wiring is in pipe, a shielded cable is not required. The external terminal is only a supplemental bonding connection where local authorities permit or require such a connection.

• Take care when handling EC sensor cells as they may contain corrosive solutions. Do not tamper or in any way disassemble the sensor cells. Do not expose to temperatures outside the recommended range. Do not expose the sensor to organic solvents or ﬂammable liquids.

• At the end of their working lives, sensors must be disposed of in an environmentally safe manner, in accordance with local waste management requirements and environmental legislation. Alternatively, sensors may be securely packaged, clearly marked for environmental disposal, and returned to Honeywell Analytics. Do NOT incinerate sensors as they may emit toxic fumes.

• High off-scale readings may indicate an explosive concentration of gas.

• Verify all outputs, including display, after installation, after service events, and periodically to ensure the safety and integrity of the system.

• Do not use the transmitter in oxygen-enriched atmospheres. Concentrations displayed will be adversely affected by oxygen depletion.

• After changing parameters with a handheld device, verify that the parameter settings are correct at the transmitter.

• The factory-set passcodes must be reset to prevent unauthorized access to the transmitter’s menus.

• When the transmitter is equipped with the optional Remote Mount Kit, the remote sensor must be securely mounted in a ﬁxed position. The Remote Sensor kit is not intended to be used as a handheld sensor.

Safety and Information

6

XNX Universal Transmitter

• Enclosures of remotely mounted sensors contain aluminum. When installed in Zone 1 locations, be careful to avoid ignition hazards due to impact or friction.

• Install the junction box according to local codes and manufacturer’s requirements.

• The enclosures of remotely mounted 705HT sensors contain aluminum. When installed in Zone 1 locations, be careful to avoid ignition hazards due to impact or friction.

• Power off the transmitter before changing S3 or S4. Failure to do this will permanently damage the transmitter. Both switches must be set in either Source or Sink prior to applying power.

• Do not set the minimum or maximum controller alarm levels at less than 10% or greater than 90% of the full scale range of the sensor. CSA and FM agency limits are 60% LEL or 0.6mg/m3.

• When conﬁguring or communicating with the transmitter using the front panel displays, resume monitoring by exiting all menus and returning to the General Status menu manually. No time outs are invoked.

• When selecting a new target gas for units with a Searchpoint Optima Plus, the sensor must be recalibrated.

• XNX Universal Transmitters carrying UL/CSA/FM approvals that are conﬁgured for devices measuring %LEL will not allow adjustments to the full scale value. The range is ﬁxed at 100%.

• There is a potential loss of sensitivity during exposure to high concentrations of H2S. Under these conditions, set the control unit to latch at overrange. In standalone conﬁguration, set alarms to latching. When resetting the overrange or alarm, verify correct operation of the transmitter.

• Keep the passwords in a secure area to prevent unauthorized access to the transmitter. If the passwords are lost, resetting the transmitter will require a service technician.

• When the transmitter is placed in Inhibit Mode, alarms are silenced. This will prevent an actual gas event from being reported. Inhibit Mode must be limited to testing and maintenance only. Exit Inhibit Mode after testing or maintenance activities.

• Honeywell recommends periodic bump tests (every 30 days or in accordance with customer site procedures) to the sensor to insure proper operation and compliance with the functional safety rating of the installation.

• Honeywell Analytics recommends bump testing of ClO2, Cl2, HF, and HCl sensors frequently and in accordance with customer site procedures to ensure proper operation and compliance with the functional safety rating of the installation.

• As some test gases are hazardous, exhaust the ﬂow housing outlet to a safe area.

• Exposure to desensitizing or contaminating substances or concentrations causing operation of any alarm may affect sensor sensitivity. Following such events, verify sensor performance by performing a functional gas test (bump test).

• When servicing or replacing sensors, reduce the risk of ignition in hazardous atmospheres by declassifying the area or disconnecting the equipment from the supply circuit before opening the sensor enclosure. Keep the assembly tightly closed during operation.

• Take appropriate precautions when using toxic, ﬂammable, or pressurized cylinders.

• XNX transmitter is SIL2 approved and please refer to XNX transmitter safety manual (1998-0808) for the detail of SIL certiﬁcate.

ELECTROSTATIC DISCHARGE

To minimize the risk of electrostatic discharge:

• Ground the transmitter adequately

• Install the transmitter in a manner that will prevent accidental electrostatic

discharges, e.g. ensure that objects do not rub against the housing etc.

• Clean the enclosure with a damp cloth when necessary

Safety and Information

7

XNX Universal Transmitter

CAUTION

!

NOTE

Hazardous Location Installation Requirements

• Read and understand this manual prior to installation and use.

• Use only certiﬁed cable glands for installation.

• Shielded armored cable is required for CE compliance.

• To reduce the risk of ignition in hazardous atmospheres, conduit runs must have a pour gland installed within 18 inches (45 cm) of the enclosure.

• All ¾ inch NPT conduit, stopping plugs, and adapters must be installed with 5¼ threads (minimum) engaged to maintain the explosion-proof rating.

• The XNX cover assembly must be fully seated to the enclosure (7 threads minimum) to maintain the explosion-proof rating.

• Use only the supplied stopping plugs (Honeywell part number 1226-0258) with the XNX Universal Transmitter.

• For units ﬁtted with the optional relay module: relay contact ratings are 250 VAC 5A, 24 VDC 5A resistive loads only.

• Use copper conductors only. Tighten terminal block screws to 4.5 lb/in (max).

• For XNX-UT**-***** transmitters, refer to XNX control drawing 1226E0402.

Special Conditions for Safe Use

• The following applies to the HART Barrier intrinsically safe circuits: For installations in which both the Ci and Li of the intrinsically safe apparatus exceed 1% of the Co and Lo parameters of the associated apparatus (excluding the cable), then 50% of Co and Lo parameters are applicable and shall not be exceeded, i.e., the Ci of the device plus the C of the cable must be less than or equal to 50% of the Co of the associated apparatus, and the Li of the device plus the L of the cable must be less than or equal to 50% of the Lo of the associated apparatus.

• For circuits connected to the EC barrier in which the capacitance and inductance exceed 1% of the permitted values, the maximum permitted capacitance is limited to 600 nF for group IIC and 1uF for group IIIC.

• The connection to the HART circuit shall be rated a minimum of IP 6X.

• Delays resulting from transmission errors between sensor and transmitter extend

response times T90 by more than one-third. The period until fault indication is 10 seconds.

• The HART interface is subject of this EC-type examination certiﬁcate only for the purpose of conﬁguration and maintenance. The options “Modbus interface” and “FOUNDATION Fieldbus interface” are not subject of this EC-type examination certiﬁcate.

• Long-term exposure (>20 minutes) to concentrations exceeding the full-scale range of the H value may then decrease even though high levels of toxic gas are still present. If such conditions can occur, set the control unit to latch at overrange. In standalone operation, set alarms to latching. When resetting the overrange or alarm, verify the correct operation of the transmitter. Before re-calibrating the transmitter, verify the absence of gas.

• The ﬂameproof joints are not intended to be repaired.

S sensor Type 2 can cause it to lose sensitivity. The measured

2

Cautions

Caution messages address situaltions that could result in damage to the transmitter or sensors.

Notes

!

Notes relate helpful information.

Waste Electrical and Electronic Equipment (WEEE) Directive

This symbol indicates that the product must NOT be disposed of as general industrial or domestic waste. This product should be disposed of through suitable WEEE disposal facilities. For more information about disposal of this product, contact your local authority, distributor or the manufacturer.

Safety and Information

8

XNX Universal Transmitter

Information

Honeywell Analytics assumes no responsibility for equipment that is not installed and used following the procedures in the Technical Manual.

Ensure that the appropriate equipment has been installed. If in doubt, contact Honeywell Analytics.

Honeywell Analytics assumes no responsibility for errors or omissions in this document or the consequences of those errors or omissions. Contact Honeywell Analytics with corrections. Honeywell Analytics reserves the right to revise this document without notice. Contact the local distributor or Honeywell Analytics if additional information is needed.

XNX® is a registered trademark of Honeywell International.

TM

Reex

is a trademark of Honeywell International.

HART® is a registered trademark of the HART Communication Foundation.

Modbus® is a registered trademark of Schneider Automation Inc. FOUNDATIONTM is a trademark of Fieldbus Foundation. Unistrut® is a registered trademark of Unistrut Corporation. Windows® is a registered trademark of Microsoft Corporation.

Revision History

Revision Comment Date

Rev 13 ECO 9425 Oct 2018 Rev 14 ECO 9443 Jan 2019 Rev 15 ECO 2019-4777 Sep 2019

Contacting Honeywell Analytics

www.honeywellanalytics.com

Europe, Middle East, Africa, India

Life Safety Distribution GmbH Javastrasse 2 8604 Hegnau Switzerland Tel: +41 (0)44 943 4300 Fax: +41 (0)44 943 4398 India Tel: +91 124 4752700 gasdetection@honeywell.com

Americas

Honeywell Analytics Inc. 405 Barclay Blvd. Lincolnshire, IL 60069 USA Tel: +1 847 955 8200 Toll free: +1 800 538 0363 Fax: +1 847 955 8210 detectgas@honeywell.com

Asia Paciﬁc

Honeywell Analytics Asia Paciﬁc 7F SangAm IT Tower, 434 Worldcup Buk-ro, Mapo-gu, Seoul 03922 Korea Tel: +82-2-69090300 Fax: +82-2-69090328 analytics.ap@honeywell.com

Technical Services

EMEA: HAexpert@honeywell.com US: HA.us.service@honeywell.com

Safety and Information

9

XNX Universal Transmitter

Introduction

XNX Universal Transmitter Technical Manual

10

XNX Universal Transmitter

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Product Description

The Transmitter

The transmitter is a comprehensive gas detection system designed to operate in hazardous locations sensor technologies –catalytic bead, electrochemical (EC),

or infrared (IR)– to detect toxic gases, ammable gases, and

oxygen depletion gas hazards. Each technology has a dedicated personality board.

Catalytic bead technology is used with the mV personality board. Catalytic bead sensors respond to a wide variety of

combustibles so are typically used for ammable gas detection.

Electrochemical technology is used with the electrochemical board. EC sensors measure toxic gases in low concentrations. The EC sensors employ the patented Reex™ cell fault

diagnosis routine. Reex checks for cell presence, cell dry-out, and cell open or short circuit. Reex is automatically initiated by the transmitter at eight-hour intervals. It is also initiated on

power up or sensor exchange. In the event of a cell failing this

test, a sensor fault code is displayed. Reex diagnostics occur in the rst minutes of the power up sequence.

Infrared technology is used with the IR board. IR sensors optically absorb gases that fall into the infrared spectrum.

For additional information about any of these sensor types, refer to the applicable data sheet for the supported sensor in Figure 1.

The transmitter also allows for an optional communication board. There are three types of boards: relay, Modbus

1

There are three main types of gas hazards: ammable, toxic, and asphyxiant. A am-

mable gas hazard is one in which there is a risk of re and/or explosion (e.g., a situation in which a gas such as methane, butane, or propane is present). A toxic gas hazard is one in which there is a risk of poisoning (e.g., a gas such as carbon monoxide, hydrogen sulde, or chlorine is present). An asphyxiant hazard would include a risk of suffocation through oxygen deciency. (Oxygen can be consumed or displaced by another gas.)

Introduction

1

and utilize multiple

®

, or

FOUNDATIONTM Fieldbus. See the Communications section for

additional information.

XNX Universal Transmitter

Searchline Excel

Searchpoint Optima Plus

705 705HT

CI

H

2

CIO CO F

2

Personality Sensor Type Supported Sensors

rsonality Senso

NH

2

NO

H2S

2

NO

HF

EtO

HCN

HCI

O

3

2

PH

3

SO

2

O

3

Su

Sensepoint

Sensepoint HT

ted Sens

Multi-Purpose

Detector (MPD)

Catalytic Bead

Infrared Flammable

Infrared Methane/CO

IR Point and Open-Path Infrared Searchpoint Optima Plus, Searchline Excel

mV Flammable and Toxic

XNX EC Toxic and O

Sensing

2

705, 705HT, Sensepoint, Sensepoint HT, MPD (Catalytic Bead Flammable, IR Flammable and IR CO

Electrochemical sensors, with Hot Swap, pre-calibrated through Intrinsically Safe (IS) barrier

.

Figure 1. XNX Universal Transmitter and supported sensing technologies

The transmitter relies on 4-20mA output, refreshed at least every

two seconds (once per second is typical), in which the output is proportional to the gas concentration.

11

2

)

2

XNX Universal Transmitter

20 mA/HART Output

All XNX Transmitters provide a 20mA Current Loop with HART Communication which can be user congured for Sink, Source (3-Wire) or Isolated (4-Wire) electrical interface based on installation requirements.

The 20mA current loop output provides an analog indication of

special states, a proportional output to gas concentration and overrange indication as shown in the table below. In the event of a simultaneous alarm and fault, an alarm condition will always override fault or warning state.

Output Description* Notes

1.0 mA Fault

Warm-up

2.0 mA

3.0 mA Warning

4-20 mA Gas Concentration

21 mA Overrange

*Alarm conditions always take priority over faults and warnings.

Inhibit Bump Test Calibration

Special

State

Indication

HART Protocol provides communications with the transmitter from a remote control system for Conguration, Status, and Diagnostics. (See the HART Protocol section for additional

information)

Communications

The XNX® Universal Transmitter is registered with the HART®

Communication Foundation. The transmitter

features HART over 4-20mA as standard.

Introduction

Additional optional communication interfaces are available: relay communication, Modbus, or FOUNDATION Fieldbus.

Each communication option has a dedicated option board. For additional information, refer to the Options section.

Certiﬁcations

XNX-UT**-****** Versions are UL and CSA listed for installation in Class I, Division 1, Groups A, B, C and D Hazardous Locations. FM Approvals evaluation includes Class I, Zone 1, Group IIC, as well as performance tests for specic sensor/transmitter combinations. The CSA or FM certication does not cover daisychained XNX combustible gas transmitters, the use of HART, Modbus, or FOUNDATION Fieldbus protocols for combustible gas performance. HART, Modbus, or FOUNDATION Fieldbus protocols can be used only for data collection or record keeping

with regards to combustible gas. The EC cartridge

remote mount kit are UL classied to Canandian and US

standards.

XNX-AM **-***** versions are certied to comply with the

European Community ATEX Directive and the prescribed protection methods for installation in potentially explosive atmospheres.

XNX-BT**-***** versions are UL listed and INMETRO approved for compliance with both U.S. and Brazilian standards.

See the Sensor Data section for additional information on applicable approvals by part number and the Operating and

Storage Conditions for Performance Tested EC Sensors section

for marking.

2

“Cartridge” and “sensor” are used interchangeably in this document.

12

2

and EC

XNX Universal Transmitter

Patents

Patents Applicable to the XNX Universal Transmitter

Patent

Number

6,123,818 Reﬂex patent Implemented in XNX 6,251,232 Reﬂex patent Implemented in XNX 6,351,982 Flammable sensor housing XNX accepts this sensor

6,395,230 Pellistor Sensor used in XNX 7,225,661 Gas calibration adapter Applicable to XNX

7,716,962 Method of gas calibration Used to calibrate XNX ECC cartridges

Description Application

Glossary

Term Description

bump test

ferrite bead a device that suppresses noise in a circuit

FOUNDATION Fieldbus

HART Protocol

intrinsic safety

IP rating

latching alarm an alarm that, once activated, must be manually reset

magnetic wand a small device used to change the transmitter’s settings

Modbus a digital communications protocol based on RS-485 topology

non-latching alarm

pellistor/bead an electronic device used to detect combustible gases

personality board

POD

span calibration

sticky gases gases that tend to coat the surfaces they contact

toxic gases

zero calibration

a brief exposure to a gas to verify that a detector is working; also known as a functional test

an open architecture, digital, serial communication system administered by the Fieldbus Foundation

Highway Addressable Remote Transducer Protocol; a bidirectional analog communication system developed by the HART Communication Foundation

design parameters for the safe operation of electrical equipment in hazardous environments; commonly abbreviated IS

Ingress Protection; a system for describing a device’s protection against dry materials and liquids (e.g., IP66/67)

an alarm that automatically resets when the cause of the alarm is removed

a component of the transmitter that allows its operation to focus on different sensing technologies

Personality, Options, and Display; the group of components including an XNX transmitter’s personality board, display, communication board, etc.

adjustment of a detector so that its scale corresponds to a gas concentration range from 0% to 100%

gases that are poisonous to humans (refer to the gas’s Safety Data Sheet for details)

adjustment of a detector so that its zero reading corresponds to a test gas concentration of 0%

Introduction

13

XNX Universal Transmitter

CAUTION

!

Product Overview

The transmitter is comprised of these main parts:

Figure 2. XNX exploded view

Enclosure

Available in either Stainless Steel or Aluminum, with 3/4” NPT (UL/CSA or UL/ INMETRO) or M25 (ATEX/IECEx only) threaded cable/conduit ports, the transmitter enclosure is explosionproof and suitable for use in -40°F to +149°F (-40°C to +65°C) operating conditions. A 5-coat marine nishing process provides

the highest degree of corrosion protection. For more information

on performance specications, see the Specications section.

The enclosure is equipped with up to ve threaded cable/conduit ports providing functional and exible congurations based on

sensor and option choices. See Cable/conduit port assingments for port assignments and restrictions.

Stopping plugs (PN# 1226-0257 or 1226-0258) have been provided to seal unused cable/conduit ports and have been Agency evaluated/approved for use with the XNX enclosure only.

The number of stopping plugs varies among available congurations.

Caution: The stopping plugs are for use only with the XNX transmitter. Do not use them with any other device.

Mounting lugs integral to the enclosure allow easy installation

on a at surface or 2”-6” (50-150 mm) diameter pipe with the optional Pipe Mount Kit or to ceilings with the Ceiling Mount Bracket Kit.

Introduction

14

XNX Universal Transmitter

Cover Lock Screw, requires a 2mm hex key (included)

Tempered Glass Window

Cover

NOTE

Cover

The transmitter cover is supplied in the identical material

specied for the enclosure.

Figure 3. XNX cover components

A tempered glass window requires the use of the supplied magnetic wand/screwdriver to activate the four user interface switches located on the front of the display module. This allows for non-

intrusive setup and operation.

A locking screw integrated into the cover provides positive locking that can be loosened by using the supplied 2mm hex key.

Figure 4. Magnetic wand/screwdriver

POD

The POD (Personality, Options, and Display) includes circuit boards for the personality module, optional interfaces, and display.

The personality module, or circuit board, determines the transmitter behavior based on the sensor type attached to the transmitter (electrochemical cell, catalytic bead sensor, or infrared) and provides the necessary interface. Connection to the attached sensor is made through the sensor connector.

The optional communication boards vary depending on the

option selected when ordered. Only one of the three available interface options (relays, Modbus, or FOUNDATION Fieldbus)

can be attached to the transmitter.

!

Note: When attaching the cover or stopping plugs, coat the threads with a suitable antiseize compound to prevent corrosion.

Introduction

Figure 5. POD, exploded view

15

XNX Universal Transmitter

NOTE

Options

Local HART

Available with any sensor technology or personality, an external access to the HART interface in the transmitter is provided. An intrinsically safe (IS) barrier inside the transmitter gives the user full control using a handheld eld communicator for programming and conguration. The external interface is installed in the lower left cable/conduit port of the transmitter

and is intrinsically safe. For more information, see the HART

Protocol section.

Figure 6. XNX Universal Transmitter with HART interface IS barrier

!

Note: POD options are either relay, Modbus, or FOUNDATION Fieldbus.

Relays

The relay option (XNX-Relay) provides 3 form “C” (SPDT) normally open/normally closed (NO/NC) contacts for alarm and fault indication. A remote reset input (TB4) is provided to silence

alarms. Momentarily closing the the circuit between the pins of

TB4 performs the same function as the Reset Alarms & Faults

command.

The remote reset switch (designated TB-4 and labeled “Remote

Reset SW”) is located on the relay option board. It provides a remote hardware-based reset of faults and alarms to the

transmitter. In the event that direct access to the local and

®

HART

transmitter may be reset remotely using a momentary switch. This will momentarily close the circuit between the two pins of

TB4, providing the same functionality as a Reset Alarms & Faults

command performed from the main screen of thelocal user or the

HART interfaces.

Relays are not available when the Modbus Fieldbus options are installed.

The transmitter has three relays: relay 1 is for alarm level 1, relay 2 is for alarm level 2, and relay 3 is for faults and special states. Two

alarm levels can be set, allowing, for example, a level 1 alarm for the immediate area when a certain gas concentration is detected

and a plant-wide level 2 alarm when a greater gas concentration is

detected.

The maximum refresh rate of the relays is 2 seconds. See the Set

Alarm Values section for more information.

interfaces is not possible, alarms and faults from an XNX

®

or FOUNDATION

Introduction

16

XNX Universal Transmitter

NOTE

Modbus

The optional Modbus interface allows the transmitter to connect

to a bus of devices and transmit data to PLCs or controllers.

(For more information, see the Modbus Connections to the transmitter are made through a pluggable

terminal block on the Modbus interface circuit board. Modbus RTU protocol uses ASCII/Hex protocols for communication.

Protocol Manual).

FOUNDATION Fieldbus

FOUNDATION eldbus is a digital communication system which supports several types of messages. Unlike many traditional systems which require a set of wires for each device, multiple FOUNDATION eldbus devices can be connected with a single set of wires. FOUNDATION eldbus overcomes some of the disadvantages of proprietary networks by providing a standardized network for connecting systems and devices.

!

Note: FOUNDATION Fieldbus XNX transmitters require a separate power source and cannot be powered via the bus.

Accessories

Refer to the Accessories/Spares section for part numbers.

Pipe Mount Kit

The pipe mount kit allows the transmitter to be mounted to pipe from 2”-6” (50-150 mm) in diameter. The kit includes the pipe mount bracket, two carriage bolts, nuts, and lock washers.

Calibration Gas Flow Adaptor

The calibration gas ow adaptor is used to apply calibration test gas to the sensor. It attaches to the bottom of the sensor and

can be tted without removing the standard weatherproof cover.

See the Calibration section for details on gas calibration.

Introduction

17

XNX Universal Transmitter

Weatherproof Cover

The weatherproof cap protects sensors from harsh weather.

Remote Sensor Mounting Kit for EC Sensors

The remote sensor mounting kit allows EC sensors to be remotely mounted via an IS cable kit, available in various lengths. The kit includes shielded cable, cable glands, and remote terminal box. The cable can be cut to the required length

then terminated at the remote terminal box.

Ceiling Mount Bracket Kit

The optional ceiling mount bracket kit includes two stainless steel ceiling mount brackets, bolts, and nuts.

Remote Gassing Kit

The remote gassing kit enables gas to be applied remotely for performing functional response

checks (bump tests). The kit Includes: 50’ Teon® tubing, a mounting bracket, a tube cap, and device adapters in 1/4” and 1/8” (6.3 mm and 3.2 mm) ID to attach to

bump test ports on the weatherproof cap of the device.

Collecting Cone

The collecting cone improves detection of lighter-than-air gases such as hydrogen and methane.

Introduction

Extreme Weather Protector

The extreme weather protector protects the sensor from environmental conditions in outdoor exposure applications.

18

XNX Universal Transmitter

Duct Mount Kit

The duct mount kit can be used with the EC sensor to detect O CO, H

, and H2S gases in ducts. When combined with the MPD

2

Interface Adapter (available separately), the duct mount kit can accommodate the MPD to detect ammable gases in ducts. The duct mount kit includes the adapter, gasket, and required fasteners. For MPD applications, order both the Duct Mount Kit

and the MPD Interface Adapter.

1226A0382 MPD Adapter Ring

S3KDMK EC/MPD Duct Adapter Kit

Sunshade

The sunshade is used in environments with high heat and/ or direct sunlight. It protects the sensor from environmental

conditions in outdoor applications, helping to keep the internal components within the specied temperature ranges. The sunshade can be mounted to 2-inch pipe or to a wall with suitable 6mm fasteners.

,

2

Introduction

19

XNX Universal Transmitter

Move Right/Increase Value Mov e Left/Decrease Value

Fault LED (yellow)

The Front Panel

The transmitter uses magnetic switches to enable non-intrusive

operation. To activate a magnetic switch, hold the magnetic end of the screwdriver up to the glass window and slowly swipe the magnet directly over the switch area. For best results, hold the

screwdriver as illustrated in Figure 7.

Switch Actuation

Enter/Accept

Visual Indicator

Escape/Back

In some menus where displayed values can be changed, the magnet must be swiped over the switch to cause the numeral

on the display to advance through the available values. Use the

✖

switch to return to a previous menu or eld.

For the purposes of this manual, the instruction to use

✓, ✖

, or , means to activate the relevant magnetic switch as

described above.

Power LED (green)

Alarm LED (red)

Escape

Move Left

Decement Value

Figure 8. Front panel display of the transmitter

Enter/Accept

Switch Actuation Visual Indicator

Move Right Increment Value

Figure 7. Using the magnetic wand

A visual indication of the switch actuation will appear in

the lower right corner of the display each time the switch is activated.

Introduction

20

XNX Universal Transmitter

Current Concentration Level

Alarm 1 Set Point

Current Concentration Le

Warning Code

Warning Icon

Controls and Navigation

Command Description

✓

Enter/Accept

✖

Escape/Back

Move Left/

Decrease Value

Move Right/

Increase Value

The Enter/Accept switch is used to access menus,

accept changes and to answer “yes” to system prompts.

The Escape/Back switch is used to return to previous

menus or to answer “no” to system prompts.

The Left/Decrement arrow is used to move through

menu options or decrease values when entering text or numbers.

The Right/Increment arrow is used to move through

menu options or increase values when entering text or numbers.

The General Status Screen

\

Figure 9. General Status screen

The General Status screen shows the status of the transmitter.

Warnings, faults, alarm levels, and current concentration levels

are displayed continuously.

3

(Numeric)

Status Indicator

vel

(Bar Graph)

Figure 10. General Status screen, normal operating mode

Concentration Units

Full Scale

Alarm 2 Set Point

The Normal Operating Mode icon indicates proper operation. The display also shows the concentration level of the target gas

in two ways. In the rst, a numeric value is shown in the upper right corner of the display in the units selected (ppm, %LEL, %VOL). The second concentration display is shown in the form

of a bar graph representing the current concentration against

full scale and in relation to the dened alarm levels. For more

information on setting range and alarm levels, see the Range/

Alarm Settings section. See the EC Sensor Performance Data, Factory Mutual Veried, EC Performance Data, DEKRA EXAM Veried and the Other EC Sensors sections for negative drift and

zero deviation values.

When a warning is triggered, the warning icon

appears and information is displayed on the General Status Screen. The information displayed alternates between screens displaying the gas concentration and the warning code. See the Warnings and

Faults section for more warning code information.

3

The LCD screen’s refresh rates are 500 milliseconds when the LCD heater is off and 1 second

with the heater on.

Introduction

Figure 11. General Status Warning detail

21

XNX Universal Transmitter

Concentration

Alar

Alarm Level Triggered

m Setpoints Flash

NOTE

If the fault icon is displayed, a fault condition has been triggered and the display will alternate between the target gas concentration and the fault code. See the Warnings and Faults section for more fault code information.

Fault Icon

Figure 12. General Status Fault detail

Fault Code

In the event of multiple warnings or faults, the user can view all

messages with the transmitter’s Event History function. When an Alarm icon

is displayed, the target gas concentration exceeds one or both preset alarm levels. The General Status Screen displays the gas concentration and the

alarm level exceeded.

m Icon

Target Gas

Figure 14. General Status Overrange detail

Negative values are not displayed and do not appear on the 4-20 mA output, but they are indicated by faults or warnings

when preset thresholds are exceeded. (See zero deviation in the

Specications section)

In addition to the graphic alarm, fault, and warning indicators, the LEDs on the front panel ash in these patterns based on the condition:

Condition

Alarm 1 Solid Alarm 2 Flashing

Warning Solid

Fault Flashing

Health Flashing

1

The refresh rate of the LEDs is 0.5 second.

2

Special states (Warmup, Inhibit) are not indicated by the Fault LED.

Red Green Yellow

LED1

2

Entering the Menu

Swiping the magnet over the magnetic switch ✓ or ✖ allows the

user to reset faults or alarms, display current settings, or make

adjustments to the device.

Figure 13. General Status Alarm detail

In an overrange condition, the alarm icon will display and the target

gas concentration bar graph and alarm setpoints will ash.

Full Scale Concentration

Concentration Bar, Alar

Introduction

!

Note: If the Easy Reset option is set to Lock, alarms and faults cannot be reset without logging in or entering a passcode. For more information, see the Conﬁgure

Security section.

Swiping the ✖ or “escape” magnetic switch activates the Alarm Reset screen and allows alarms to be silenced and faults to be reset.

22

XNX Universal Transmitter

WARNING

!

The ✓ switch resets all alarms and faults and returns to the

General Status screen. Use the

Status screen without resetting the alarms and faults.

Figure 15. Alarm Reset screen

Two authorization levels control access based upon the security

level of the user: Level 1 (routine maintenance) and Level 2

(technician and password administrator). The default passcodes for both levels are “0000” and must be changed after installation to control access (see the Configure Security section). In general, access to neither security level restricts the user to

viewing the transmitter’s display. If desired, the Easy Reset from

Main Status option

access to either security level.

allows alarm and fault resets without requiring

Figure 16. Passcode screen

✖

switch to return to the General

When the Passcode screen is displayed, the rst passcode digit is highlighted. Use the through the values. Once the correct value is displayed for the rst digit,

moves to the previous digit of the passcode.

Repeat for each of the remaining digits in the passcode. If the

passcode is entered incorrectly, the Invalid Passcode screen is

displayed and the user is returned to the General Status screen.

✓

accepts the value and moves to the next digit or ✖

✓

switches to increase or decrease

Figure 17. Entering the passcode

Figure 18. Invalid Passcode screen

Displaying Transmitter Information

While in the General Status display, swipe the magnet over the

magnetic switch The General Status display will replace the bar graph in the

lower portion of the screen with the unit’s serial number, the date and time, and the unit’s part number.

to display information about the transmitter.

Warning: The factory-set passcodes must be reset to prevent unauthorized access to the transmitter’s menus.

Introduction

23

XNX Universal Transmitter

?

Figure 19. General Status Screen with unit information

Main Menu

Once the proper passcode has been entered, the transmitter

displays the Main Menu.

Figure 20. The Main Menu

From the Main Menu, a Level 1 user can:

• display the current settings/conguration

• test the transmitter

• calibrate and bump test the transmitter

• congure the unit for language, date and time

The Main Menu consists of these options:

Introduction

24

Menu Description

Conﬁgure

Test

Information

Gas

Calibration

Provides access to settings to conﬁgure the transmitter and connected devices

Provides access to tools and settings to allow simulation of gas events to test the system

Displays current settings for the transmitter including optional relays and Modbus

Displays the interface to calibrate sensors attached directly to the transmitter

See

Section...

Configuring

the

Transmitter

Tes t Menu

Information

Menu

Gas

Calibration

Menu

XNX Universal Transmitter

Menu Navigation

Introduction

25

XNX Universal Transmitter

Information Mode

Alarm/Fault Status Alarm/Fault Conrm Alarm/Fault Reset Reset Alarm/Fault

Date & Time Transmitter ID, Serial #, Revision

Transmitter Data

Transmitter Status

Sensor Type, Serial #, Revision

Sensor Data

Sensor Status

Gas Name, ID, Range

Gas Data

Range Settings, Alarm Settings

Range/Alarm Settings

mA Level Settings

Relay Settings

4

Relay Settings

Fieldbus Settings

5

Fieldbus Settings

Event History Increment Next/Previous Event Increment Next/Previous Hour Increment Next/Previous Day Increment Next/Previous Alarm Increment Next Previous Fault

4 Optional relay only

Introduction

5 Optional FOUNDATION Fieldbus and Modbus only

26

XNX Universal Transmitter

Test Mode

Inhibit

Enable/Disable Inhibit

Force mA Output Select Current: 0 to 22 mA Accept

Force Relay

6

Select Relay 1

Select Relay 2

Select Relay 3

Accept

Alarm/Fault Simulation Alarm 1 Simulation Alarm 2 Simulation Warning Simulation

Fault Simulation

Calibration Mode

Gas Calibration

Enter Span Gas Concentration (Oxygen) Enter Span Gas Concentration (Not Oxygen)

Bump Test

mA Output Calibration Adjust 4 mA Output Adjust 20 mA Output

Soft Reset

Align Excel

7

8

6 Optional relay only

Introduction

7 Searchpoint Optima and Searchline Excel only 8 Searchline Excel only

27

XNX Universal Transmitter

Conguration Mode

Select Language

Set Date & Time Set Date Format Set Year, Month, Day Set Hours, Minutes, Seconds

Sensor Type Selection Set mV Sensor Type

Set mA Sensor Type

Gas Selection

Changing the Gas or Units Name

Gas Selections and Alarm Limits Based on mV Sensor Type

Range & Alarms

Set Range

Alarm 1 Type Alarm 1 Setpoint Alarm 1 Latching or Non-latching Alarm 2 Type Alarm 2 Setpoint Alarm 2 Latching or Non-latching Selecting the Numeric Format

Latching/Non-latching Change Meas. Units

mA Output Levels Change mA for Inhibit

9 Catalytic bead sensor only 10 Searchpoint Optima and Searchline Excel only

11 ECC and mV only

Introduction

9

10

11

Change mA for Warning Change mA for Overrange Change mA for Low Signal Change mA for Blocked Beam

Set Calibration Interval

Accept New Sensor Type

Information screen identifying previous sensor and new sensor

Screen displays new type and old type

Set Beam Block

13

Select Beam Block Threshold Select Time to Beam Block

Select Time to Fault

Set Path Length

14

Set New Path Length

Congure Unit ID Edit ID Clear ID Default ID

Relay Options

15

Select A1 Select A2

Fieldbus Options

16

Change Fieldbus Address

Change Fieldbus Speed

Security

Reset and LVL1 LVL1 Code LVL2 Code

12 Electrochemical and catalytic bead sensors only

13 Searchline Excel only 14 Searchline Excel only

15 Optional relay only 16 Optional FOUNDATION Fieldbus and Modbus only

28

12

XNX Universal Transmitter

Installation and Operation

XNX Universal Transmitter Technical Manual

29

XNX Universal Transmitter

WARNING

!

CAUTION

!

Sensor Mounting and Location

Warning: Installation must be in accordance with the recognized standards of the appropriate authority in the country concerned.

Warning: Before carrying out any work, ensure that local regulations and site procedures are followed. Appropriate standards must be followed to maintain the overall certiﬁcation of the sensor.

Caution: Locate transmitters and sensors in accordance with relevant local and national legislation, standards, and codes of practice.

Caution: Do not locate the transmitter where it will be exposed to direct sunlight.

Caution: Replace a detector only with another of the same type.

Caution: Mount detectors where the gas is most likely to be present.

When determining the placement of sensors, follow the advice of safety and engineering personnel and experts having specialist knowledge of gas dispersion, the process plant system, and the equipment involved. Record the agreement reached on the location of sensors. Consider these factors when locating gas sensors:

• possible damage caused by natural events such as rain or

ooding

• ease of access for functional testing and servicing

• how escaping gas may behave due to natural or forced air currents.

Mounting the Transmitter

The transmitter can be mounted in a number of ways using the integral mounting tabs. The transmitter can be attached

to at wall surfaces or to Unistrut®. With the optional pipe

mount kit, the unit can be mounted to pipe of diameter 2” to 6” (50 to 150mm). A ceiling mount bracket kit is also available.

7.75"

196.85 mm

6.00"

15.4 mm

5.6"

124.24 mm

0.55"

14.35 mm

1.67"

42.41 mm

Figure 22. XNX Universal Transmitter mounting dimensions and clearances

113.8 mm

1.2"

31.75mm

4.48"

2.054"

52.18mm

0.625"

15.88mm

1.768"

44.90 mm

1.768"

44.90 mm

0.945" 24mm

3.176"

80.67 mm

6.138"

158.75mm

Installation and Operation

30

XNX Universal Transmitter

WARNING

!

NOTE

Warning: Any work on the interior of the detector must be conducted only by Honeywelltrained personnel

Warning: To reduce the risk of ignition in hazardous atmospheres, disconnect the equipment from the supply circuit before opening the sensor enclosure. Keep the assembly tightly closed during operation. Conduit runs must have a seal ﬁtting connected within 18 inches (45 cm) of the enclosure.

Warning: Never open the XNX enclosure under power unless the area is known to be non-hazardous.

Warning: When the transmitter is equipped with the optional Remote Mount Kit, the remote sensor must be securely mounted in a ﬁxed position. The Remote Sensor kit is not intended to be used as a handheld sensor.

!

Note: Agency certiﬁcations require that EC and mV sensors face down. Optima sensors must be mounted horizontally.

The transmitter is congured with ve cable/conduit ports built

into the housing for wiring and mounting sensors. Figure 23 provides the guidelines to proper installation of the transmitter.

While relay wiring can use any

available cable/conduit port in

the enclosure, to avoid electrical noise do not use the same

cable/conduit port for both relay

reset and relay signal lines.

Option Position

Local HART® Option B

XNX Electrochemical Sensor - Local/Remote C

MPD, 705 Series, Sensepoint Series C

Searchpoint Optima Plus A or E

Searchline Excel Typically C

Remote Sensor Connection (except EC) Any remaining

Searchpoint Optima Plus - Remote Any remaining

Modbus Any remaining

Relays Any remaining

Foundation Fieldbus Any remaining

Power Any remaining

Figure 23. Cable/conduit port assignments

Installation and Operation

31

XNX Universal Transmitter

Integral Mounting Lugs

Figure 24. XNX Universal Transmitter mounting lugs

Wiring the Transmitter

The transmitter is available in sensor technologies, or personality options, which support a variety of sensors and applications. Each of the personalities use a dedicated interface board. Pluggable terminal blocks are used for easy connection and service. The personality boards and optional communication interfaces are enclosed in plastic housings comprising the electronics POD (Personality, Options, and Display). The Personality circuit board determines the transmitter’s behavior based on the type of sensor attached to the interface. See

Specications for drift and zero deviation values.

This table illustrates the three transmitter congurations and the

sensors supported by each.

XNX IR Personality XNX EC Personality

Searchline Excel

Generic mA Sensors XNX EC Sensor Remote Mount Kit

Searchpoint Optima Plus Local/

Remote

XNX EC Sensor

Figure 25. Optional pipe and ceiling mounts

Installation and Operation

XNX mV Personality

705 Local / Remote MPD Local (cat bead and IR) Sensepoint Local / Remote

705HT Local / Remote MPD Remote Sensepoint PPM Local/Remote

Sensepoint HT Remote

Figure 26. XNX Transmitter personalities

32

XNX Universal Transmitter

CAUTION

!

WARNING

!

Caution: Before wiring the transmitter, conﬁrm that the correct personality and communication boards are installed.

performance of the transmitter. For best reliability use resistive loads only.

Isolation

Isolate the power and signal-carrying conductors.

General Wiring Considerations

For proper operation of the transmitter and sensor technologies, consideration of wiring-induced voltage drops, transient electrical noise, and dissimilar earth ground potentials is imperative in the design and installation of the system.

Warning: The sensor must be earthed/grounded for intrinsic safety, electrical safety and to limit the effects of radio frequency interference. Earth/ground points are provided inside and outside the unit. EMI note for applications using shielded cable: Cable shield must provide 90% coverage of the wiring. Cable shield terminations must be made at the cable glands with suitable EMI type glands. Avoid terminating cable shields at the Earth ground lug inside the XNX enclosure. In cases where wiring is in pipe, a shielded cable is not required. The external terminal is only a supplemental bonding connection where local authorities permit or require such a connection.

Loading

When wiring for DC power, 4-20mA signal, remote wiring to

sensors must be sized sufciently to provide adequate voltages

for the line length and the loads that will be used.

Circuit Protection

Supply circuits must provide over-current protection. Consider inrush current in specifying any DC supply. Power supply range is 16 to 32 VDC for EC and mV versions, 18 to 32 VDC for Searchpoint Optima Plus and Searchline Excel, and 16 to 32 VDC depending on the limitations of the device for the generic 4-20mA input.

Distance Considerations for Installation

Adequately powering the transmitter is the factor that determines an installation’s maximum distance. The 4-20 mA output signal will easily handle the distance back to the control

equipment.

The primary factors determining distance are the minimum oper-

ating voltage of the transmitter and/or sensor; the maximum current draw of the transmitter/sensor, the resistance of the

wire used, the power supply voltage, and the current capacity of power supply. An additional consideration is the type of

installation; specically, how many transmitters/sensors are

drawing power from the same power supply and whether these transmitters are using the same pair of wires (“daisy-chained”) or have their own connections.

The use of high inrush or inductive loads may affect the

Installation and Operation

33

XNX Universal Transmitter

Power Supply Power Supply Power Supply

Power Supply

Types of Installations

There are three basic types of installation: a single transmitter; multiple transmitters connected to a single power source; and

multiple transmitters connected in a “daisy-chain” conguration.

Single Transmitter

This is the simplest type of installation. It consists of a single XNX transmitter installation per power source.

Figure 27. Single transmitter installation

Advantages:

• Maximum distance between power source and transmitters

• Fewer power sources.

Disadvantages:

• Larger power source will be needed

• If a power source fails, several monitoring points fail.

Multiple Transmitters Connected in a “Daisy-Chain” Conﬁguration

This conguration consists of two or more transmitters installed

in a line. The power connections are installed as an extension of

the previous transmitter, with the rst transmitter being the only

one actually wired to the power source.

• Maximum distance between power source and transmitter

• Smaller power source

• If a power source fails, only one monitoring point fails.

Disadvantage:

• Multiple transmitters require multiple power sources.

Multiple Transmitters Connected to a Single Power Source

This is two or more transmitters sharing a single power source with each transmitter having its own dedicated wiring to the

power source.

Figure 28. Multiple transmitters powered by a single power supply

Installation and Operation

Power Supply

Figure 29. Daisy-chained transmitters from one power supply

Advantages:

• Less wire needed for installation

• Fewer power sources.

Disadvantages:

• Requires a larger power source

• Shorter distance between power source and transmitters.

• If a power source fails, several monitoring points fail.

34

XNX Universal Transmitter

NOTE

!

Note: CSA/FM certiﬁcation does not cover daisy-chained XNX combustible gas transmitters.

Power Source Selection

For each type of installation, selection of power supply is important. Power supplies are rated by voltage and power. The nominal voltage for all XNX transmitters is 24V with the power required depending on the number of points using the same power supply.

As a general guideline, the power supply should be capable of providing more power than is required by the installation. A

10 watt power supply is ne for a single XNX mV with catalytic

sensor (6.5 watts required, see the following table) but is inadequate for a single XNX IR with Searchpoint Optima Plus (10 watts required).

XNX Universal Transmitter Maximum Power Consumption

-40°C to +65°C -10°C to +65°C HART over 4-20mA

with Relay, Mod-

bus, or Foundation

Fieldbus

(watts)

Conﬁguration

transmitter with toxic

sensors

transmitter with

catalytic sensors

transmitter with

infrared cartridge

HART

over

4-20mA

(watts)

HART over 4-20mA

with Relay, Modbus

FoundationTM Fieldbus

(watts)

®

, or

HART

over

4-20mA

(watts)

5.1 6.2 3.4 4.5

5.4 6.5 3.7 4.8

XNX Universal Transmitter Maximum Power Consumption

-40°C to +65°C -10°C to +65°C HART over 4-20mA

with Relay, Mod-

bus, or Foundation

Fieldbus

(watts)

Conﬁguration

transmitter with

Searchpoint Optima

Plus

transmitter with

Searchline Excel

HART

over

4-20mA

(watts)

HART over 4-20mA

with Relay, Modbus

FoundationTM Fieldbus

(watts)

®

, or

HART

over

4-20mA

(watts)

8.6 9.7 6.9 8.0

12.1 13.2 10.4 11.5

To determine the wattage required, add the maximum power requirements of all the points that will share the power supply. For example, consider a system with two XNX mV transmitters with catalytic sensors (6.5 watts each) and one XNX IR with Searchpoint Optima Plus (10 watts). A 25 watt power supply would probably handle this installation, but a 30 watt power supply would be a better choice.

Wire Selection

The type of wire used for connections has an effect on the distance of the installation. This is because some of the voltage is dropped across the cable between the power supply and the

transmitter.

Thinner wire (i.e., 18 AWG) will lose more voltage than thicker wire (i.e., 12 AWG). The amount of voltage lost depends on how

much current is being drawn through the wire; more current

means more loss. If too much voltage is ropped across in the wiring, there may not be enough at the distant point to allow the transmitter to operate.

Installation and Operation

35

XNX Universal Transmitter

Single Transmitter Distances

For installations that have dedicated wiring between the transmitter and the power supply, use the following chart. These distances assume stranded wire is used. If multiple transmitters are using the same power supply, make sure the power supply wattage rating is high enough to power all transmitters simultaneously.

OR

Power Supply

Conﬁguration

transmitter mV or EC

with sensor

transmitter IR with

Searchpoint Optima Plus

transmitter IR with

Searchline Excel

Figure 30. Single transmitter distances

Single Transmitter Distances

18 AWG

[1.0 mm2]

1140 feet

[347 meters]

[551 meters]

660 feet

[201 meters]

[323 meters]

550 feet

[168 meters]

[270 meters]

Power Supply

16 AWG

[1.5 mm2]

1810 feet

1060 feet

890 feet

14 AWG

[2.0 mm2]

2890 feet

[880 meters]

1690 feet

[515 meters]

1410 feet

[430 meters]

12 AWG

[3.5 mm2]

4620 feet

[1408

meters]

2690 feet

[820 meters]

2260 feet

[690 meters]

Daisy-Chained Transmitter Distances

It is difcult to calculate distances for this conguration. There

are many factors to be considered: distance from control room

to rst transmitter, distance between transmitters, sensor types,

etc. A few scenarios are presented here to provide a base to work from.

Transmitter 1 Transmitter 2 Transmitter 3 Transmitter 4 Transmitter 5

Power Supply

“d”“d”“d”

Figure 31. Daisy-chained transmitter distances

“d”

1. Several transmitters equally spaced from themselves and the power source.

2 Transmitters - Distance “d”

Conﬁguration

transmitter mV or EC

with sensor

transmitter IR with

Searchpoint Optima Plus

transmitter IR with

Searchline Excel

18 AWG

[1.0 mm2]

380 feet

[115 meters]

220 feet

[67 meters]

185 feet

[56 meters]

16 AWG

[1.5 mm2]

600 feet

[183 meters]

350 feet

[106 meters]

295 feet

[90 meters]

14 AWG

[2.0 mm2]

960 feet

[292 meters]

560 feet

[170 meters]

470 feet

[143 meters]

“d”

12 AWG

[3.5 mm2]

1540 feet

[469 meters]

900 feet

[274 meters]

750 feet

[229 meters]

Installation and Operation

36

XNX Universal Transmitter

Conﬁguration

XNX mV or EC

With Sensor

XNX IR with

Searchpoint Optima Plus

XNX IR with

Searchline Excel

Conﬁguration

XNX mV or EC

With Sensor

XNX IR with

Searchpoint Optima Plus

XNX IR with

Searchline Excel

Conﬁguration

XNX mV or EC

With Sensor

XNX IR with

Searchpoint Optima Plus

XNX IR with

Searchline Excel

3 Transmitters - Distance “d”

18 AWG

[1.0 mm2]

190 feet

[58 meters]

110 feet

[33 meters]

90 feet

[27 meters]

16 AWG

[1.5 mm2]

300 feet

[91 meters]

175 feet

[53 meters]

145 feet

[44 meters]

4 Transmitters - Distance “d”

18 AWG

[1.0 mm2]

110 feet

[33 meters]

65 feet

[20 meters]

55 feet

[17 meters]

16 AWG

[1.5 mm2]

180 feet

[55 meters]

105 feet

[32 meters]

85 feet

[26 meters]

5 Transmitters - Distance “d”

18 AWG

[1.0 mm2]

75 feet

[23 meters]

45 feet

[13 meters]

35 feet

[11 meters]

16 AWG

[1.5 mm2]

120 feet

[36 meters]

70 feet

[21 meters]

55 feet

[17 meters]

14 AWG

[2.0 mm2]

480 feet

[146 meters]

280 feet

[85 meters]

235 feet

[71 meters]

14 AWG

[2.0 mm2]

290 feet

[88 meters]

165 feet

[50 meters]

140 feet

[43 meters]

14 AWG

[2.0 mm2]

190 feet

[58 meters]

110 feet

[33 meters]

90 feet

[27 meters]

12 AWG

[3.5 mm2]

770 feet

[234 meters]

450 feet

[137 meters]

375 feet

[114 meters]

12 AWG

[3.5 mm2]

460 feet

[140 meters]

270 feet

[82 meters]

225 feet

[68 meters]

12 AWG

[3.5 mm2]

300 feet

[91 meters]

180 feet

[55 meters]

150 feet

[46 meters]

2. Several transmitters installed in pairs with each pair equally spaced from the next pair and the power source. These distances assume the paired transmitters are installed within 10 feet [3 meters] of each other.

Transmitters 1 and 2 Transmitters 3 and 4 Transmitters 5 and 6

Power Supply

“d”“d”“d”

Figure 32. Transmitters in pairs

2 Transmitters - Distance “d”

Conﬁguration

XNX mV or EC

With Sensor

XNX IR with

Searchpoint Optima Plus

XNX IR with

Searchline Excel

Conﬁguration

XNX mV or EC

With Sensor

XNX IR with

Searchpoint Optima Plus

XNX IR with

Searchline Excel

18 AWG

[1.0 mm2]

485 feet

[147 meters]

380 feet

[115 meters]

280 feet

[85 meters]

4 Transmitters - Distance “d”

18 AWG

[1.0 mm2]

190 feet

[58 meters]

110 feet

[33 meters]

90 feet

[27 meters]

16 AWG

[1.5 mm2]

775 feet

[235 meters]

600 feet

[180 meters]

440 feet

[134 meters]

16 AWG

[1.5 mm2]

300 feet

[91 meters]

175 feet

[53 meters]

145 feet

[44 meters]

14 AWG

[2.0 mm2]

1230 feet

[292 meters]

960 feet

[290 meters]

700 feet

[213 meters]

14 AWG

[2.0 mm2]

480 feet

[146 meters]

280 feet

[85 meters]

235 feet

[71 meters]

12 AWG

[3.5 mm2]

1970 feet

[600 meters]

1540 feet

[470 meters]

1130 feet

[344 meters]

12 AWG

[3.5 mm2]

770 feet

[234 meters]

450 feet

[137 meters]

375 feet

[114 meters]

Installation and Operation

37

XNX Universal Transmitter

J1 - Remote HART Connector Only

Personality

Boards

Option

Boards

A

B

C

D

E

F

6 Transmitters - Distance “d”

Conﬁguration

XNX mV or EC

With Sensor

XNX IR with

Searchpoint Optima Plus

XNX IR with

Searchline Excel

18 AWG

[1.0 mm2]

95 feet

[33 meters]

55 feet

[17 meters]

45 feet

[14 meters]

16 AWG

[1.5 mm2]

150 feet

[45 meters]

85 feet

[26 meters]

70 feet

[21 meters]

14 AWG

[2.0 mm2]

240 feet

[73 meters]

140 feet

[42 meters]

115 feet

[35 meters]

12 AWG

[3.5 mm2]

385 feet

[117 meters]

225 feet

[68 meters]

185 feet

[56 meters]

Ensure that wiring is adequately protected from mechanical damage during installation. Shorted or open-circuit wiring to an MPD **I** sensor may result in a full-scale concentration reading before the transmitter’s internal diagnostics can identify the external installation fault.

POD Connections

This illustration shows the connections available on of the terminal blocks for each type of personality board.

Figure 33. Personality board terminal block legend

Each of the personalities uses a single terminal block for connection with the exception of the IR personality, which features a second terminal block.

The personality boards also provide a dedicated pair of jumper

switches to dene output of the transmitter as isolated 4-20mA,

Sink 20mA, or Source 20mA as well as a service jumper to allow power to the loop to continue when the transmitter is being serviced. A separate connector is used to activate local HART (see the Local HART Interface section).

Installation and Operation

Local HART provides an external access to control the transmitter. An intrinsically safe (IS) barrier inside the

transmitter allows the user to attach an external handheld eld communicator for programming and conguration. The external

interface is intrinsically safe. It is installed in the transmitter’s

lower left cable/conduit port.

38

XNX Universal Transmitter

NOTE

WARNING

!

Table A Table B

Board Type Function S1 S2 Board Type Connection Function

EC Personality mV Personality

IR Personality

Board Type Function S3 S4 Board Type Connection Function

IR Personality

Board Type Connection Function Board Type Connection Function

Relay TB4

Modbus SW5

Foundatin Fieldbus

4-20mA

Output

Table C Table D

IR 4-20mA

Input

Table E Table F

SW5 Simulation Mode

Source

 

Sink

 

Isolated

Remote Reset Connector

Bus Loop Terminators

Source

Sink

 

 

EC Personality

mV Personality

TB1

IR Personality

EC Personality J2 EC IS Barrier

IR Personality TB2 Com A and B

Relay TB3 Relay Output

Modbus TB3 Data Connection

Foundation Fieldbus

TB3 Data connection

Power, 4-20mA Power, 4-20mA, Sensor

Power, 4-20mA, IR Power and Signal

!

Note: Open loop faults are not available due to HART, Modbus, and FOUNDATION Fieldbus interfaces where a 4-20 signal cannot be used. In this case, open loop, 0mA must be used as the diagnostic.

The Option circuit boards vary depending upon the option selected when ordered. Only one of the three available interface options (relays, Modbus, or FOUNDATION Fieldbus) can be attached to the transmitter. When installed, connections to the

options are made to connectors at the bottom of the POD

Installation and Operation

.

4-20mA Output, Common Connections, and Power

Settings

Warning: Power off the transmitter before changing S3 or S4. Failure to do this will permanently damage the transmitter. Both switches must be set in either Source or Sink prior to applying power.

The transmitter allows the user to congure the 4-20mA

output to Sink, Source, or Isolated mode operation via two programming switches on the POD table shows the S1 and S2 setting and corresponding output

conguration.

Switch Conﬁguration

Mode S1 S2

Source Down Up

Sink Up Down

Isolated Down Down

Most controllers in the market will accept source-congured devices. Sink-congured signals are used in older technology

controllers, which reduce the need for complete system upgrades. In isolated-signal devices, if the controller fails or the

mA signal wires are disconnected or broken, the eld device will

remain operational. Most controllers in the market will accept

isolated congured devices.

Power and 4-20mA connections are made at TB-1 and are identical for the EC, IR, and mV Personality Boards. For user convenience, a second set of +Ve and -Ve power terminals have been provided to eliminate the need for a secondary junction

1 The 4-20 mA output state is refreshed at least every two seconds (once per second is typical).

39

1

. The Switch Conguration

XNX Universal Transmitter

Controller

+VE

Signal

-VE

R

L

1

2

3

1-1

1-5

1-3

+V

+mA

-V

XNX

XNX Sink Configuration

Current

Flow

XNX Source Configuration

Controller

+VE

Signal

-VE

R

L

1

2

3

1-1

1-6

1-3

+V

-mA

-V

XNX

Current

Flow

Terminate cable screen at the detector or controller, not both�

Controller

+V1

+V2

-V2

1-1

1-5

1-6

+V

+mA

-V

XNX

1-3

-mA

-V1

XNX Isolated Configuration

NOTE

box in multi-node systems when used with the supplied terminal jumpers. These jumpers enable an electrical connection without connecting to the Personality Board. Install them between pins 1 and 2 and between pins 3 and 4 to support multi-node wiring.

Keep the total load resistance for the 4-20mA between 200 and 500Ω, including the resistance of the properly selected 4-20mA cable and input impedance of the equipment to be connected.

Failure to perform ‘Calibrate mA Output’ or with loads outside the recommended values may result in a diagnostic warning or fault messages.

If the 20 mA output is not used, a 500 ohm resistor must be installed.

The transmitter’s power consumption is dependent on the

sensor and options for the specic conguration. For proper

operation, the input voltage must be maintained between 16 and 32 VDC for EC and mV units and between 18 to 32 VDC for IR

units.

Figure 35. Source wiring

Figure 36. Isolated wiring

Labels applied to the back of the POD identify each of the connection points.

Installation and Operation

!

Figure 34. Sink wiring

Note: Pins 2 and 4 of terminal block TB1 have no internal connection on the personality board. When used with the terminal block jumpers, pins 2 and 4 can provide additional 4-20mA connections or supply power for daisy-chained units.

40

XNX Universal Transmitter

WARNING

!

NOTE

!

Note: FOUNDATION Fieldbus XNX transmitters require a separate power source and cannot be powered via the bus.

Terminal Block Connections

Connections to the transmitter are made via pluggable terminal blocks secured to the back of the POD. The terminal blocks are keyed and polarized. A color coded label assists in wiring when the block is removed from the POD.

FOUNDATION Fieldbus Wiring

FOUNDATION Fieldbus connections to the transmitter are

made through a pluggable terminal block on the FOUNDATION Fieldbus option board, shown in Figure 38. A simulation switch

(SW5) is included on the board to enable/disable simulation

mode. Terminals 3-1 through 3-4 are provided to facilitate bus

wiring; there is no internal connection to other XNX circuitry.

Terminal 3-1 is connected internally to 3-2. Similarly, terminal 3-3 is connected internally to 3-4.

FOUNDATION Fieldbus

4

5

6

Internal ground lug

ground cable

to internal

ground lug

S5 Sim Mode

Out

In

TB-3 Modbus

+ +

TB-3 FFB

3-1

F+ F+

3-2 3-3

F-

3-4

F-

3-5

FS FS

3-6

Use shorting jumper supplied to maintain connection during service

1

2

SW5 -

Sim switch

Jumper

assignments

3

The terminals are suitable for use with 12 to 28 AWG or 0.8

2

to 2.5 mm

wire. Wire insulation must be stripped 5/16” (8 mm). Tighten each terminal to a maximum of 4.5 in-lbs (0.51 Nm). Up to four terminal blocks are provided; each having 2, 6, 9, or 10

positions.

Two terminal block jumpers are included to provide an electrical connection without connection to the Personality Board. Install the jumpers between pins 1 and 2 and between pins 3 and 4 to support multi-node wiring.

Warning: When the transmitter is equipped with the optional Remote Mount Kit, the remote sensor must be securely mounted in a ﬁxed position. The Remote Sensor kit is not intended to be used as a handheld sensor.

Figure 37. FOUNDATION Fieldbus option board and terminal block

Installation and Operation

41

XNX Universal Transmitter

CAUTION

EC Personality Wiring

Terminal Block Jumper

IN

TB-1 T erminal Block

OUT

XNX EC TB-1

Figure 38. Pluggable terminal block and terminal block jumper

!

Caution: Do not force the POD into the enclosure. Doing so may result in damage to the wiring or the POD or may alter the switch settings. If resistance is felt, wires may be preventing the POD from being properly positioned.

J1 - Local HART Connector

S1 and S2 - Signal Output Jumper Switch

Source

Sink

Isolated

▼ ▲

J2 - EC Barrier Connector

XNX EC TB-1

1

2

3

4

5

6

S2S1

▲

▼

▼▼

TB1

Position EC

1 +24

2

3 0v

4

LOCAL

20 mA

Operation

S1

S2

16-32 VDC

6.2W max.

4-20mA

HART

EC TB-1

EC Barrier

J1

HART

Source Sink Isolated

+V 1-1

-V 1-3

+mA 1-5

-mA 1-6

S1

S2

1-2

1-4

J2

Installation and Operation

Figure 39. XNX EC personality board terminal blocks and jumper switches and terminal

block assignments

42

XNX Universal Transmitter

Optional Local HART

Remote Sensor Kit

CAUTION

Sensor Mounted to

IS Barrier must



be connected to J1

S1 S2

J1 HART

1

2

3

4

Terminal Block 1

5

-+6

HART

Adaptor

Sensor Cartridge

Sensor Retainer

Weatherproof Cap

Local HART

IS Barrier (optional)

J2 EC Barrier

EC IS Barrier must be connected to J2

EC IS Barrier

EC

Adaptor

Local Sensor Mounted to Transmitter

For FM compliance, the tag supplied with XNXXSH1FM and XNXSO1FM cartridges must be attached to the transmitter or remote mount kit.

Figure 40. EC personality wiring

Sensor Cartridge

Sensor Retainer

Weatherproof Cap

Electrochemical Sensor Installation

!

Caution: A missing oxygen cell will result in 0% V/V O2 gas concentration, thus triggering alarm events. In this situation, check the connection of the EC cell to the sensor connector board.

Caution: For biased sensors (e.g., nitrogen dioxide) remove the sensor stabilizer from the bottom of the sensor prior to installation.

Using the Installing plug-in sensor illustration as a guide, follow this

procedure:

1. Verify that the label on the new sensor is the correct gas type.

2. Unscrew the weatherproof cover, loosen the retainer locking screw with the supplied hex key, and unscrew the sensor retainer.

3. Plug in the new sensor. Take care to align the sensor pins with the connector.

4. Ret the sensor retainer, tighten the locking screw with the

hex key, and ret the weatherproof cover. Countdown time

of up to 180 seconds (depending on the sensor type) will be displayed.

5. Acknowledge the gas type (required before proceeding). For more information on setting gas type, see the Gas

Selection section.

6. After the sensor is installed and the gas type is conrmed, the range, alarm levels, and other important settings must be set; see the Conguring the Transmitter section.

7. After the transmitter has been congured, calibrate the sensor following the procedures in the Calibration section.

Installation and Operation

43

XNX Universal Transmitter

Weatherproof Cap

NOTE

CAUTION

!

WARNING

!

Transmitter

New Sensor

Sensor Retainer &

Locking Screw

EC Sensor Remote Mounting Kit

The remote sensor mounting kit is used to mount the EC sensor away from the transmitter. To mount the sensor remotely, follow this procedure:

1. Unscrew the weatherproof cover, loosen the retainer locking screw and unscrew the sensor retainer.

2. Remove the sensor by pulling (without twisting).

3. Plug the remote sensor cable connector into the bottom of the transmitter and secure the retainer.

4. Route the cable to the location where the remote sensor is to be mounted.

5. Optional: make a loop of cable at the junction box. This will provide some excess for future re-terminations.

6. If necessary, cut the cable to the required length.

3

2

1

Figure 41. Installing plug-in sensor

4

5

!

Note: Refer to control drawings 3000E3157 and 3000E3159 for the installation requirements and the remote mounting of EC cells.

Installation and Operation

Caution: Do not cut the cable too short. Once cut, additional lengths of cable cannot be added as this will invalidate the intrinsically safe certiﬁcation.

Warning: Enclosures of remotely mounted sensors contain aluminum. Be careful to avoid ignition hazards due to impact or friction when installed in Zone 1 locations.

7. Mount the remote sensor junction box, allowing enough

room below to t the sensor and weatherproof cover. See

control drawing 3000E3159 in the Remote Sensor Mount section for specic mounting information.

44

XNX Universal Transmitter

8. Attach the cable to the remote terminal box via the gland provided.

9. Make the connections as shown in the Installing a remote

sensor mounting kit illustration on the next page.

10. Fit the Terminal box lid.

11. Plug the sensor into the socket at the bottom of the terminal box.

12. Fit the sensor retainer, tighten the locking screw, and t the weatherproof cover.

13. Calibrate the sensor following the procedure in

and Span Calibration for EC Sensors, mV Sensors, and Searchpoint Optima

section

.

the

Zero

Connections

Pin # Color

1 Yellow 2 Green 3 Blue 4 White 5 Red

Black

6

Sensor Cartridge

Sensor Retainer

Installation and Operation

Weatherproof Cap

Sensor Mounted to Remote Sensor Kit

Figure 42. Installing a remote sensor mounting kit

45

XNX Universal Transmitter

CAUTION

!

NOTE

!

CAUTION

HART

20 mA

Operation

LOCAL

J1

S1

+V 1-1

mV TB-1

MPD, 705

Sensepoint

4-20mA

HART

16-32 VDC

6.5W max.

1-2

-V 1-3 1-4

+mA 1-5

-mA 1-6

Sense

1-7

0v 1-8

Ref 1-9

S1

Source Sink Isolated

S2

J1 - Local HART Option Connector

1

2

3

4

5

6

7

8

9

internal

grounding lugs

S1 and S2 - 20mA Output Jumper Switch

S2

S1

▼

Isolated

▲

Sink

▼

Source

▼ ▲

XNX mV TB-1

mV Personality Wiring

A transmitter with the mV personality board allows interface to the Multi Purpose Detector (MPD), 705, and Sensepoint devices.

Caution: See Speciﬁcations to ensure that the transmitter and the mV sensor have the

appropriate approvals prior to commissioning.

Caution: Verify that the mV sensor being installed has compatible threads (3/4 NPT or

M25).

Read the Wiring the Transmitter section which denes the power and 4-20mA output connections that are common to all personalities.

Connections from the mV sensor to the transmitter are made via a single pluggable terminal block. Honeywell Analytics recommends that an 8” (20 cm) service length for wiring be maintained. The wire colors for the connections for each sensor type are shown in the table on this page.

Verify that wires for 4-20mA outputs are routed away from sources of noise such as relay wires.

Note: The black and red wires from the MPD are not used with the mV personality

board. Ensure that they are properly isolated from live connections. Do not cut the

wires.

!

Caution: Dress the wires properly so that cabling does not contact switches 1 or 2

on the back of the POD. Do not force the POD into the enclosure. Doing so may result

in damage to the wiring or the POD. If resistance is felt, wires may be preventing the

POD from being properly positioned.

Installation and Operation

Figure 43. mV personality board terminal blocks and jumper switches

Wire Color from Sensor

mV Catalytic Bead Sensor

TB-1 Desc.

MPD

Pins 1-6

7 Sense Brown Red Brown

8 0v White Green White

9 Ref Blue Blue Blue

*Internal earth ground; approximately one inch of the black sheath that contains the Sensepoint PPM’s four wires (red, blue, green, silver) must be split to allow the silver grounding wire to reach the internal grounding lugs.

See subsections in the 4-20 mA Output, Common Connections, and Power Settings section for pin

705

705HT

Sensept

Senspt HT

Sensept

PPM*

identiﬁcation

mv MPD w/IR Sensor

IR 5%

CO

2

CH

4

46

IR Flam

XNX Universal Transmitter

S1 S2

J1 HART

1

2

3

4

5

Terminal Block 1

6

-

7

Sense

8

Com

Ref+9

Internal Ground Lug

Local HART

IS Barrier (optional)

Optional Local HART IS Barrier must be connected to J1

Sense 7

Com 8

Ref 9

mV Remote Sensor Mounting

The sensor can be mounted remotely from the transmitter; the

installation will vary by installed location, sensor and thread type used. To remotely mount the sensor, follow this procedure:

1. Install a junction box appropriately rated for the

environment. Allow sufcient room for the installation and

calibration of the sensor. (MPD sensors must be installed with the sinter pointing down.)

2. Loosen the retainer locking screw on the transmitter with the supplied hex key.

3. Unscrew the transmitter’s weatherproof cover and loosen the retainer locking screw with the supplied hex key.

4. Run conduit or cable from one of the transmitter’s available conduit ports to the location of the remote terminal housing in accordance with local requirements.

A terminal housing provides a mounting base for the sensor. The installation wiring enters the terminal housing

via conduit. UL and CSA require a conduit pour tting

within 18 in. (45 cm) of each enclosure.

HART

Adaptor

Figure 44. mV personality wiring

Installation and Operation

MPD

705

Sensepoint

Ground Wire from Sensepoint PPM and HT

UL/CSA Aluminum Junction Box

2441-0022

ATEX/IEC Junction Box

00780-A-0100

Figure 45. Remote terminal housings

The distance between transmitter and remote installation must comply with these parameters to ensure proper operation. Distances are dependent on sensor types and the wire gauge

used.

47

XNX Universal Transmitter

WARNING

!

AWG Metric Wire Gauge

24 0.25 mm

MPD CB1, 705 Series.

Sensepoint Series

2

Sensors

MPD IC1, IV1 & IF1 Sensors

12m (47 ft.) 30m (97 ft.) 22 20m (65 ft.) 50m (162 ft.) 20 0.5 mm

2

30m (97 ft.) 80m (260 ft.) 18 50m (162 ft.) 120m (390 ft.)* 16 1.0 mm

* Fluctuations in temperature have a greater impact on smaller wire diameters and therefore may require more frequent zero calibrations.

2

80m (260 ft.)* 200m (650 ft.)*

5. Wire the pluggable terminal block as shown in the mV

personality board illustration then plug the connector into

the back of the mV personality board. In remote mount

MPD congurations, the 3 wires connecting the pluggable

terminal block and the remote MPD must be routed through the supplied ferrite bead (Honeywell Analytics part no. 0060-1051, supplied in the accessory kit) as shown in Figure 46.

Internal Ground Lug (do not use)

Power

Ferrite Bead

for Remote

Sensor Wiring

XNX Universal Transmitter

mV

Remote

Sensor

Figure 46. Ferrite bead wiring

6. Mount the remote sensor junction box with sufcient room

below to t the sensor and weatherproof cover.

Installation and Operation

Warning: Install the junction box according to local codes and manufacturer’s requirements.

7. Attach the conduit to the remote terminal box. The junction box provides a mounting base for the sensor and contains the associated electronic circuit.

8. In the remote junction box, connect the wires from the transmitter to the 3-way terminal block in the terminal box.

48

XNX Universal Transmitter

NOTE

!

WARNING

!

NOTE

!

CAUTION

!

Note: The black and red wires from the MPD are not used with the mV personality board. Ensure that they are properly isolated from live connections. Do NOT cut the wires.

Warning: The enclosures of remotely mounted 705HT sensors contain aluminum. Be careful to avoid ignition hazards due to impact or friction when installed in Zone 1 locations.

All cable port devices and blanking elements must be certied in type of explosion protection ameproof enclosure “Ex d” or “Ex e”,

suitable for the conditions of use and correctly installed.

9. Plug the connector into the back of the mV personality board.

10. Install the mV sensor.

11. Terminate wiring at the mV sensor.

12. At the transmitter, pass the wires through the ferrite bead as shown in Figure 46 and terminate the wiring at the pluggable terminal block as shown in Figure 44.

13. Fit the terminal box lid.

14. Fit the sensor retainer, tighten the locking screw and t the weatherproof cover (if required).

15. Calibrate the sensor following the procedure in the

Calibration section.

Note: Environmental conditions that compromise the IP66 protection provided by the weatherproof cover will extend published response times. Safety protocols or maintenance procedures that consider these environmental conditions are recommended.

IR Personality Wiring

The RS-485 digital communication is the primary interface in which the transmitter reads gas concentration and sensor status

from the Optima Plus/Searchline Excel. If RS-485 communication fails, the Optima Plus/Searchline Excel 4-20mA output becomes

the primary source to read gas concentration.

The transmitter allows local programming and conguration

through the local LCD display as well as through the HART protocol. Gas concentrations can be viewed at the transmitter from the Searchpoint Optima Plus or Searchline Excel via 4-20mA output as well as from the digital communication connection on TB2 that can provide additional diagnostic information. The gas concentration is taken from the digital communication line as long as it is in agreement with the 4-20 mA output, otherwise the 4-20mA output takes precedence.

Caution: Dress the wires properly so that cabling does not contact switches 1-4 on the back of the POD.

Installation and Operation

49

XNX Universal Transmitter

CAUTION

NOTE

The transmitter provides a 4-20mA output reecting the input

received. It also offers diagnostic information or data via HART or any of the additional communication options offered.

Read the Wiring the Transmitter section which denes the transmitter power and 4-20mA output connections that are common to all personalities.

!

Caution: Do not force the POD into the enclosure. Doing so may result in damage to the wiring or the POD or may alter the switch settings. If resistance is felt, wires may be preventing the POD from being properly positioned.

Searchpoint Optima Plus/Searchline Excel Connections

Connections from the Searchpoint Optima Plus or Searchline Excel to the transmitter are made via two pluggable terminal blocks (see the IR personality board wiring guide). Maintain an 8-inch service length of wiring.

In remote mount congurations, the maximum distance between

the transmitter and Optima Plus or Excel is 100 feet (33 meters) using 0.75 mm

2

(18 AWG) wire minimum.

The Searchpoint Optima Plus or Searchline Excel can be supplied in either Sink or Source mode operation and is typically labeled on the white wire exiting the Searchpoint Optima Plus or

Searchline Excel. Use the table in the IR personality board wiring

guide to set S3 and S4 to the same output type that appears on

the wire tag of the IR device. For more information see the Searchpoint Optima Plus Operating

Instructions (2108M0905) or the Searchline Excel Technical Manual (2104M0506).

Connecting Generic mA Devices

Use the following schematics to set switches S3 and S4 They

must

be set to the same output type (which appears on the wire

tag of the mA device).

The IR personality type provides for a generic mA input under

sensor type conguration. The XNX

be used to convert the mA input to be transmitted over HART® or optional Modbus® or FOUNDATION™ Fieldbus protocols and to

set optional relays (if equipped). Additional conguration of gas

type and unit ID for reporting is required (see the Gas Selection section). For Generic mA devices, input values below 3mA will generate Fault 155.

®

Universal Transmitter can

!

Note: A second, black-handled screwdriver is included for use on terminal blocks 2 and 4. This tool is smaller than the magnetic wand and is designed to ﬁt into the terminal connections on TB2 and TB4.

Installation and Operation

50

XNX Universal Transmitter

XNX S3 and S4 must be in the UP position Set mA Device and XNX to the same output type�

XNX

24V 7W Max

+IR

1-7

R

L

Signal

-IR

1-9

Current

Flow

1-8

Figure 47. XNX mA input sink conguration

XNX S3 and S4 must be in the DOWN position Set mA Device and XNX to the same output type�

XNX

+IR

1-7

Signal

R

L

1-9

Current

Flow

-IR

1-8

Figure 48. XNX mA input source conguration

+V

+mA

-V

+V

-mA

-V

mA Device

LOCAL

20 mA

Operation

S1

S2

13.2W max.

18-32 VDC

HART

Searchpoint

Ir TB-1

TB-2 Ir Data

J1

HART

Source Sink Isolated

+V 1-1

-V 1-3

4-20mA

+mA 1-5

-mA 1-6

Searchline

+ Ir

- Ir

Sig 1-9

Source

J1 - Local HART Connector

S1 and S2 - 20mA Output Jumper Switch

S1

S2

1-2

1-4

Source

Sink

Isolated

S2S1

▲▼ ▼▲ ▼▼

S3 and S4 - IR 20mA Input

1-7 1-8

S3

S4

Sink

Jumper Switch

Source

Sink

▼ ▲

XNX IR TB-1

S4S3

▼ ▲

Figure 49. IR personality

board terminal blocks,

jumper switches and wiring

guide

1

2

3

4

5

6

7

8

9

TB1

TB2

TB1

Terminal

No.

Desc.

1 +24v 2 3 0 VDC 4 5 +20mA 6 -20mA 7 +24VDC Red 8 0VDC Black

From Searchpoint

Optima Plus

Searchline Excel

See the 4-20 mA

Output, Common

Connections, and Power

Settings section .

Terminal No.

A Blue

B Orange

Desc.

Earth Green/Yellow

9 Sig - 20mA White

Note:

Honeywell Aanalytics recommends that Excel or Optima and the transmitter be wired to building ground. Ground the system at only one point.

TB2

From Searchpoint

Optima Plus

Searchline Excel

XNX

From Searchpoint Optima Plus

Searchline Excel

Installation and Operation

51

XNX Universal Transmitter

Ground

Optional Local HART

IS Barrier must be

connected to J1

Searchpoint Optima Plus

To Building

HART

Adaptor

S1 S2

J1 HART

1

2

3

4

5

Terminal Block 1

6

+

7

+24

8

Gnd

Sig

9

S3 S4

A21

B

Terminal Block 2

IR Data

To Building

Local HART

IS Barrier

(optional)

Ground

Figure 50. IR personality wiring - Searchpoint Optima Plus

Conduit/armored cable

RFI and EMC shield

Earth loop through the conduit/armored cable must be avoided

Control

Room

HART

Adaptor

Optional Local HART

S1 S2

J1 HART

IS Barrier must be

1

connected to J1

2

3

4

5

Terminal Block 1

6

+

7

+24

Gnd

8

Sig

9

S3 S4

1

A

B

2

Terminal Block 2

IR Data

Isolation kit is not

important in this

configuration

Local HART

IS Barrier (optional)

Internal body screw

External body screw

Mounting plate must be connected to the same earth ground as the XNX transmitter

To local building ground

Searchline Excel

Installation and Operation

52

Armor

Control

Room

XNX

Transmitter

RFI and EMC shield

Notes: Ground loops through the armor must be avoided. If armor is connected to the XNX transmitter via a conductive EXd cable gland, the armor must not be earthed at any other location (this will prevent ground loops). Since it is already earthed at the transmitter. Armor must be grounded only if an isolating gland is used to connect it to the transmitter.

Ground loops through the RFI and EMC shield must be avoided. RFI and EMC shield must be connected to a clean/instrumentation earth ground at the control room. To avoid an earth loop, connect it only at the control room (not at the transmitter).

Figure 51. IR personality wiring - Searchline Excel

XNX Universal Transmitter

NOTE

Attaching the Searchpoint Optima Plus to the Transmitter

For M25 entries, insert the seal (Honeywell part number

1226-0410) into the proper cable/conduit opening then thread

the locknut (Honeywell part number 1226-0409) onto the Optima to the end of the threads. Thread the Optima body into the

transmitter until the seal compresses and/or the Optima bottoms

out. Reverse until the semi-circular pattern of holes on the front of the weather protection are on the bottom (see below). Tighten the locknut to the transmitter body.

Figure 52. Searchpoint Optima Plus orientation

The 3/4” NPT ports do not require the seal and locknut. The form

of the threads provide positive locking and sealing.

Searchline Excel/Searchpoint Optima Plus Remote Installation

Junction boxes are available for the Searchline Excel and Searchpoint Optima Plus to facilitate remote mounting from the transmitter. Junction boxes are available for installations

requiring UL/CSA or ATEX approvals. Consult the Searchline Excel Technical Handbook (Honeywell part number 2104M0506) or Searchpoint Optima Plus Operating Instructions (Honeywell

part number 2108M0905) for specics on remote installations

or contact a Honeywell Analytics representative for more information.

!

Note: When attaching the Searchpoint Optima Plus, coat the threads with an anti-seize compound to prevent corrosion.

Installation and Operation

53

XNX Universal Transmitter

Searchpoint Optima Plus/Searchline Excel Wiring

When wiring the transmitter and the Searchpoint Optima Plus or Searchline Excel for remote applications, the general

recommendations of the ANSI/TIA/EIA-485-A standard must be

adhered to with the following additions:

1. When mounting the Searchline Excel sensor or Searchpoint Optima Plus detector, run the wiring between each sensor or detector and the transmitter in separate, dedicated conduits.

2. Use 18 AWG twisted shielded cable for the RS485 connection between sensor or detector and the transmitter. Verify that the shield of the cable is grounded to earth and the XNX ground on one end ONLY.

3. Avoid running wiring near main cables or other highvoltage equipment.

4. Do

5. Honeywell Analytics recommends that Searchline Excel

not

install 120 ohm terminating resistors. These

resistors are not required due to low data rates.

sensors or Searchpoint Optima Plus detectors and the transmitter be wired to building ground. Ground the system at only one point.

6. Perform a soft reset after connecting the Searchpoint

Optima Plus detector and the transmitter for the rst time.

The soft reset is performed by accessing the transmitter’s Calibration Menu. When the soft reset is initiated for the Optima IR sensor, the RS-485 communication will

be interrupted temporarily and faults F120 and/or F161

may be observed. RS-485 communication will be reestablished in a few minutes and the faults will be reset automatically in non-latching mode. The faults must be reset manually in latching mode

Installation and Operation

54

XNX Universal Transmitter

Pair 1: Unit Ground and IR Sense (Cable Shield Grounded ONE END ONLY)

LOCAL

20 mA Operation

S1

S2

13.2W max.

Ir TB-1

Source Sink Isolated

18-32 VDC

4-20mA

HART

+mA 1-5

Searchpoint

Searchline

TB-2 Ir Data

(Cable Shield Grounded ONE END ONLY)

Pair 2: RS485+ and RS485-

J1

HART

S1

+V 1-1

-V 1-3

-mA 1-6 + Ir

- Ir

Sig 1-9

Source

S2

1-2

1-4

1-7 1-8

S3

S4

Sink

IR Sens

IR -ve

RS485-

+ve

Power Supply

-ve

IR +ve

RS485+

Twisted Shielded Pair 18 AWG

Junction Box

RS485 Cable Shield Ground ONE END ONLY

Single Ground Point

Pair 3: IR +ve and IR -ve (Cable Shield Grounded ONE END ONLY)

IR Sens (white)

IR +ve (red)

IR -ve (black)

Searchline Excel

RS485+ (yellow)

RS485- (blue)

Unit Gnd (green)

Searchpoint Optima Plus

Installation and Operation

Figure 53. IR remote wiring

55

XNX Universal Transmitter

CAUTION

!

Options

Local HART Interface

Available with any sensor technology or option, this option provides an external access to the HART interface in the transmitter. An intrinsically safe (IS) barrier inside the

transmitter allows the user to attach an external handheld eld communicator for programming and conguration. The external interface is installed in the lower left cable/conduit port of the

transmitter and is intrinsically safe.

Figure 54. XNX Universal Transmitter with HART interface IS barrier installed

The HART protocol is a communication technology used with smart process instrumentation, providing two-way communication simultaneously with the 4-20mA analog signaling used by traditional instrumentation equipment. For more detailed information on HART, see the the HART Protocol section and

www.fieldcommgroup.org.

Implementation of the HART protocol in the transmitter:

HART devices can operate in point-to-point or multidrop

congurations.

Caution: Device address changes must be performed only by qualiﬁed service personnel

Point-to-Point Mode

In point-to-point mode, the 4–20 mA signal is used to communicate one process variable, while additional process

variables, conguration parameters, and other device data are

transferred via HART protocol, as shown in the illustration below. The 4–20 mA analog signal is not affected by the HART signal.

Multiplexer

Barrier

Note: Instrument power is provided by an interface

or external power source that is not shown.

Handheld Terminal

Control System or Other Host Application

• Meets HART 6.0 physical layer specication

• The physical layer is tested according to HART Physical Layer Test Procedure, HCF_TEST-2.

• Data transfer rate: 1200 bps.

Installation and Operation

Field Device

Figure 55. Point-to-point mode of operation

56

XNX Universal Transmitter

NOTE

Multidrop Mode

The multidrop mode of operation requires only a single pair of wires and, if applicable, safety barriers and an auxiliary power

supply for up to 8 eld devices (see the illustration below). All

process values are transmitted via HART protocol. In multidrop

mode, all eld device polling addresses are >0, and the current through each device is xed at a minimum value (typically 4 mA).

Control System or

Other Host Application

Handheld Terminal

Input/Output (I/O) System

Note: Instrument power is provided by an interface

or external power source that is not shown.

Field Devices

Figure 56. Multidrop mode of operation

the recommended wiring practice. Unshielded cables may be

used for short distances if ambient noise and cross-talk will not affect communication.

The minimum conductor size is 0.51 mm diameter (#24 AWG) for cable runs of less than 5,000 ft. (1,524 m) and 0.81 mm diameter (#20 AWG) for longer distances.

!

Note: Use multidrop connection for supervisory control installations that are widely spaced such as pipelines, custody transfer stations, and tank farms.

In general, the installation practice for HART devices is the same as conventional 4-20mA instrumentation. Individually shielded twisted pair cable, either in single-pair or multi-pair varieties, is

Installation and Operation

57

XNX Universal Transmitter

NOTE

Cable Length

Most installations are well within the 10,000 ft. (3,000 m) theoretical limit for HART communication. However, the electrical characteristics of the cable (mostly capacitance) and the combination of connected devices can affect the maximum allowable cable length of a HART network. The table below shows the effect of cable capacitance and the number of network devices on cable length. The table is based on typical installations of HART devices in non-IS environments, i.e., no miscellaneous series impedance.

More information for determining the maximum cable length

for any HART network conguration can be found in the HART

Physical Layer Specications.

Cable Capacitance – pf/ft (pf/m)

Allowable Cable Lengths for 18 AWG (1.0 mm2) Shielded Twisted Pair Cable

Number of Network

Devices

1

2

3

4

5

6

7

8

20 pf/ft

(65 pf/m)

9,000 ft

(2,743 m)

8,750 ft

(2,667 m)

8,500 ft

(2,590 m)

8,250 ft

(2,515 m)

8,000 ft

(2,440 m)

7,800 ft

(2,380 m)

7,600 ft

(2,317 m)

7,400 ft

(2,255 m)

30 pf/ft

(95 pf/m)

6,500 ft

(1,981 m)

6,350 ft

(1,935 m)

6,200 ft

(1,890 m)

6,050 ft

(1,845 m)

5,900 ft

(1,800 m)

5,760 ft

(1,755 m)

5,620 ft

(1,713 m)

5,480 ft

(1,670 m)

50 pf/ft

(160 pf/m)

4,200 ft

(1,280 m)

4,075 ft

(1,242 m)

3,950 ft

(1,205 m)

3,825 ft

(1,165 m)

3,700 ft

(1,130 m)

3,620 ft

(1,105 m)

3,540 ft

(1,080 m)

3,460 ft

(1,055 m)

70 pf/ft

(225 pf/m)

3,200 ft (975 m)

3,125 ft (953 m)

3,050 ft (930 m)

2,975 ft (905 m)

2,900 ft (884 m)

2,820 ft (860 m)

2,740 ft (835 m)

2,660 ft (810 m)

Relays

The relay option (XNX-Relay) provides 3 form “C” SPCO contacts for alarm and fault indication. A remote reset is provided to silence alarms.

The remote reset switch (designated TB-4 and labeled “Remote Reset SW”) is located on the relay option board. It provides a remote hardware-based reset of faults and alarms to the transmitter. In the event that direct access to the local user and HART interfaces is not possible, alarms and faults from an XNX transmitter can be reset remotely using a switch.

The transmitter can be reset by activating a momentary switch. This will momentarily close the circuit between the two pins of TB4, providing the same functionality as a Reset Alarms & Faults command performed from the main screen of the local user or the HART interfaces.

!

Note: This option is not available when the Modbus or FOUNDATION Fieldbus options are installed.

Wiring for the relays is through an available cable/conduit port to a

pluggable terminal block. See Figure 33 for the terminal block legend.

The transmitter has three relays: relay 1 is for alarm level 1, relay 2 is for alarm level 2, and relay 3 is for faults and special states. All special states are indicated by the fault relay.

Honeywell Analytics recommends that the fault relay be used in all installations to maintain safe operation. See Set Alarm Values for more information.

The relay state is refreshed every 2 seconds. The fault relay is

Installation and Operation

58

XNX Universal Transmitter

normally energized indicating proper operation. In the event of power failure or fault, the C-NO connection will open.

9

8

TB4

Remote

Reset SW

Relay Ratings

250VAC 5A

24VDC 5A

NC

3-1

C

3-2

NO

3-3

NC

3-4 3-5

C

3-6

NO

3-7

NC

3-8

C

NO

3-9

TB-3 RELAY

Warning: Power externally supplied. Disconnect at source prior to servicing.

Fault Level 2 Level 1

supplied, disconnect at source

7

TB3

2

1

TB3 Relay Connections

Warning: Power externally

prior to servicing

Relay Contact Ratings:

250 VAC 5 amps 24 VDC 5 amps

6

5

4

TB4

Figure 57. XNX relay option board terminal blocks

3

2

1

Relay

TB3

1 NC

2 C

3 NO

4 NC

5 C

6 NO

7 NC

8 C

9 NO

TB4

1 1

2 2

Modbus

The optional Modbus interface allows all transmitter local user interface functions and parameter settings to be transmitted.

Modbus is a master-slave protocol. Only one master (at a time) is connected to the bus. Modbus communication is always initiated by the master. The slave nodes never transmit data without receiving a request from the master node. The slave nodes never communicate with each other. The master node initiates only one Modbus transaction at a time.

Terminals 3-1 through 3-4 are provided to facilitate bus wiring; there is no internal connection to other XNX

S5 EOL Term In

RT =120

TB-3 Modbus

+

3-1

+

3-2

-

3-3

-

3-4

A

3-5

A

3-6

B

3-7

B

3-8

S

3-9

S

3-10

Use shorting jumper supplied to maintain connection during service

Out

SW5 - Loop Termination

10

TB3 Modbus Connections

circuitry. Terminal 3-1 is connected internally to 3-2. Similarly, terminal 3-3 is connected to 3-4

9

8

7

6

5

4

3

2

1

Use Jumper to maintain connection during service

Modbus

TB3

1 +

2 +

3 -

4 -

5 A

6 A

7 B

8 B

9 S

10 S

Installation and Operation

Figure 58. Modbus option board terminal block/jumper switch

59

XNX Universal Transmitter

NOTE

Modbus connections to the transmitter are made through a pluggable terminal block on the Modbus interface circuit

board. Modbus RTU protocol uses ASCII/Hex protocols for

communication. See the Terminal block legend for the terminal block legend. A loop termination point (SW5) is included on the Modbus interface board to provide termination of the Modbus loop.

FOUNDATION Fieldbus

FOUNDATION Fieldbus connections to the transmitter are

made through a pluggable terminal block on the FOUNDATION Fieldbus option board, shown in the gure below. A simulation

switch (SW5) is included on the board to enable/disable

simulation mode. Terminals 3-1 through 3-4 are provided to

facilitate bus wiring; there is no internal connection to other XNX

circuitry. Terminal 3-1 is connected internally to 3-2. Similarly, terminal 3-3 is connected internally to 3-4.

FOUNDATION Fieldbus

4

5

6

Internal ground lug

ground cable

to internal

ground lug

FOUNDATION

Fieldbus

TB3

1 F+

2 F+

S5 Sim Mode In

TB-3 Modbus

+ +

TB-3 FFB

3-1

F+ F+

3-2 3-3

F-

3-4

F-

3-5

FS FS

3-6

Use shorting jumper supplied to maintain connection during service

Out

1

2

SW5 -

Sim switch

Jumper

assignments

3

3 F-

4 F-

5 FS

6 FS

Figure 59. FOUNDATION Fieldbus option board, terminal block, jumper switch

Installation and Operation

!

Note: FOUNDATION Fieldbus XNX transmitters require a separate power source and cannot be powered via the bus.

60

XNX Universal Transmitter

WARNING

!

CAUTION

!

NOTE

!

Powering the Transmitter the First Time

Detectors Congured for EC/mV/IR (except Searchline Excel)

After mounting, wiring the transmitter, wiring the specic mV or IR

sensor, or installing the EC cartridge, the installation is visually and electrically tested as described below.

Warning: This procedure must be performed only by suitably trained personnel following local and site procedures. Verify that the associated control panel is inhibited so as to prevent false alarms.

Warning: Do not set the minimum or maximum controller alarm levels at less than 10% or greater than 90% of the full scale range of the sensor. CSA and FM agency limits are 60% LEL or 0.6mg/m3.

1. Verify that the transmitter is wired correctly according to this manual and the associated control equipment manual.

2. If equipped, unscrew the weatherproof cover, loosen the sensor retainer locking screw, and unscrew the retainer.

3. For EC sensors, plug in the sensor cartridge, taking care to align the sensor pins with the connector holes in the PCB.

Caution: For toxic sensors, remove the shorting clip from the bottom of the sensor prior to installation. No shorting clip is provided with O2 sensors.

Note: Before replacing the cover on the transmitter housing, coat the threads with anti-seize compound to prevent corrosion.

Note: Inspect the cover O-ring for cracking or any other defects that might compromise the integrity of the seal. If it is damaged, replace with the O-ring supplied in the ofﬁcial service kit.

5. Apply power to the transmitter. This will in turn provide power to the sensor.

6. During warmup, the transmitter will be forced to 3 mA (inhibit mode).

7. The display will enter a start up routine displaying the initialization screen, then the transmitter loads its operating system, data from the sensor and checks if it is the same type transmitter and sensor software version numbers, gas type, the detection range and span calibration gas level, estimated time to next calibration due, and self-test result. The boot-up procedure takes about 45 seconds. The LCD and LED test is performed in the initialization after powering on. All LCD pixels and LEDs (red, green, and yellow) are turned on for 1.5 seconds. The LCD then goes blank and the LEDs turn off.

4. Ret the sensor retainer, tighten the locking screw and

ret the weatherproof cover.

Installation and Operation

Figure 60. XNX Initialization and General Status screens

61

XNX Universal Transmitter

NOTE

In the nal stages of boot-up, warnings and faults

may be observed until the user performs the proper

conguration, calibration, and reset activities

described in the following sections. See Warnings

and Faults for detailed descriptions.

Once the General Status screen appears, the transmitter and sensor are in normal monitoring mode.

!

Note: Calibration of sensors attached to the transmitter is mandatory before the sensor can be used for gas monitoring. Refer to the Calibration section for the procedure. For EC and mV personalities, perform Accept New Sensor Type before calibrating the sensor.

Note: For initial commissioning, refer to EN 60079-29-2.

IR Units Conﬁgured for Searchline Excel

When powering the transmitter tted with a Searchline

Excel sensor, the following procedure must be performed by Honeywell-trained personnel to assure proper installation.

1. Verify that the transmitter is wired correctly according to this manual and the associated control equipment manual.

2. Apply power to the transmitter. This will in turn provide power to the sensor.

3. The sensor output will be forced to 3 mA (default warning).

4. The transmitter will enter a boot-up routine, displaying the initialization screen. The transmitter will load its operating system, data from the sensor, sensor software

version numbers, gas type, the detection range and span

calibration gas level, estimated time to next calibration due, and self-test result. This will take about 45 seconds.

Figure 61. XNX Initialization and General Status screens

In the nal stages of boot-up, warnings and faults

may be observed until the user performs the proper

conguration, calibration, and reset activities

described in the following sections. See Warnings

and Faults.

5. When the transmitter completes boot-up, perform a soft reset (see the Soft Reset section) on the Searchline Excel detector from the Calibration Menu. When the soft reset is intitated, the RS-485 communication will be temporarily

interrupted and faults F120 and/or F161 may be observed.

The RS-485 communication will be re-established in a few minutes and the faults will automatically be reset in Non-

Latching mode. F120 and/or F161 must be reset manually

in Latching mode.

6. Set the Path Length section for the application, then align the transmitter and receiver (see the Align Excel section).

7. Once the alignment is complete, perform a zero calibration on the Searchline Excel detector to complete the commissioning process. See the Searchline Excel Technical Manual (Honeywell part number 2104M0506) for calibration information.

8. Reset any faults that appear in the transmitter’s display. The transmitter and Searchline Excel sensor are now ready

to monitor.

Installation and Operation

62

XNX Universal Transmitter

Remote Calibration of MPD Sensors

In addition to functional gas testing to ensure the system is operating properly, remote calibration of the MPD CB1 catalytic combustible sensor and MPD IV1 and MPD IF1 infrared combustible sensors can be performed provided the following requirements are met:

• Remote sensor is installed in an indoor environment

• Internal air velocity does not exceed 0.5 m/s

• Weather housing part number 0200-A-1640 is installed on the sensor housing

• A 1 LPM regulator is used for calibration gas delivery

Perform the remote calibration procedure in accordance with

The Product Specications section except using the weather

guard (Honeywell part number 0200-A-1640) instead of the regular ow housing (Honeywell part number 1226A0411).

Honeywell Analytics recommends MPD sensor calibration at a maximum interval of 180 days (the default value). This value can be reprogrammed in accordance with site procedures to assure the highest level of safety. Verify the correct operation of each

sensor before each use by calibration with a certied test gas of

known concentration.

The pellistors used in ammable gas sensors can suffer

from a loss of sensitivity when in the presence of poisons or

inhibitors, e.g., silicones, suldes, chlorine, lead, or halogenated

hydrocarbons.

Conﬁguring the Transmitter

The transmitter can be congured via the local user interface by using the menus available in Congure Menu. For information

on accessing and navigating the menus, see Controls and

Navigation. The transmitter is shipped with these settings:

Display Language

Date Format

Time Format

mV Sensor Type (w/mV personality)

Alarm Levels

Latching/Non-Latching Alarms

Display Units

4-20 mA Levels

Temperature Warning*

Deadband Calibration Interval

Unit ID

Relay Settings

Fieldbus Settings

Level 1 Password Access

Level 2 Password Access

Easy Reset Enabled

*Remark: Temperature warning is disabled as default for only XNX Russian version

1

®

HART

Modbus (if installed)

®

English mm/dd/yy HH:MM MPD-IC1 (%Vol)

Sensor Cartridge Dependent Alarm: Latching

Fault: Non-Latching PPM, %VOL or %LEL

(dependent on personality and sensor choice) Inhibit: 2.0 mA

Warning: 3.0 mA Overrange: 21.0 mA

Enabled Enabled 180 Days (HA recommends 30 day interval) XNX #nnnnnnnn Alarm Normally De-Energized Address: 0

Mode: Point-To-Point Address: 5

Baud Rate: 19200 0000 0000 Yes

Installation and Operation

63

XNX Universal Transmitter

✓

WARNING

!

NOTE

Conﬁgure Menu

Functions in the Congure Menu and the security levels required

to change them are explained in this table.

Symbol Description

Select Language 1 Calibration Interval 2

Set Date & Time 1

Set mV Sensor Type 2 Beam Block Options 2

Set mA Sensor Type 2 Path Length 2

Gas Selection 2 Unit ID 2

Range & Alarms 2 Relay Options 2

Latching/Non-

latching

Set Units 2 Congure Security 2

mA Levels 2

Warning: When conﬁguring or communicating with the transmitter using the local user interface, resume monitoring by exiting all menus and returning to the General Status menu manually. No time outs are invoked.

Security

Level

2

Symbol Description

Accept New Sensor Type

Fieldbus Options 2

Security

Level

2

Select Language

Available languages for the transmitter are English, Italian, French, German, Spanish, Russian, Mandarin, and Portuguese.

Figure 62. Select Language menu

Different screens are used to display each of the eight available languages, one language per screen. Each language screen will appear in three languages: the selected language, Russian, and Mandarin. To select a new display language, use the

✓

switches to navigate through the selections. Use

✖

selection or

to discard the selection and return to the previous

to make the

menu.

Figure 63. Language Selection Screen

!

Note: With the exception of Inhbit Mode, gas measurement continues in the background allowing users to navigate screens without taking the transmitter ofﬂine.

Installation and Operation

Figure 64. Accept Language Change screen

64

XNX Universal Transmitter

Set Date and Time

Figure 68. Setting the Date screen

Figure 65. Set Date & Time menu

Select “Set Date and Time” to change the date format and set

the transmitter’s current time/date.

Set Date Format

Figure 66. Set Date Format menu

Use the switches to highlight “MM/DD/YY.” Select ✓ to set the date format.

Set Date

Figure 67. Set Date Format screen / Set Date menu

Use the Set Date selection to set the current date. Use the switches to select the year, month, and day. Select desired date.

✓

to set the

Use the switches to decrease or increase the values until the desired value appears. Select

✓

to set the value and move to

the next character. Repeat for each character to be changed.

Set Time

Figure 69. Set Time menu

Use the switches to decrease or increase the values until the desired value appears. Use ✓ to select the value and move

to the next character. Repeat for each character to be changed.

Figure 70. Set Time screen

Use the switches to navigate to the ü. Select it to save the changes. If ü is not selected, no changes will be saved.

Installation and Operation

65

XNX Universal Transmitter

NOTE

Figure 71. Accept Time-Date Changes screen

When the new settings have been saved, the “Settings Accepted” screen will be displayed.

Figure 72. Time-Date Settings Accepted screen

!

Note: The remainder of this section requires Level 2 access.

Set mV Sensor Type

Figure 73. Set mV Sensor Type screen

Set mV Sensor Type sets the identity of the type of mV sensor attached to the transmitter. The available mV sensor type selections are:

Sensor Description

MPD-IC1 (5%V) MPD Carbon Dioxide 5%Vol MPD-IV1 (5%V) MPD Methane 5%Vol MPD-IV1 (100%L) MPD Methane 100%LEL MPD-IF1 (100%L) MPD Flammable 100%LEL MPD-CB1 (100%L) MPD Flammable 100%LEL 705-HT (20%L) 705 Flammable 20%LEL (High-Temp) 705-HT (100%L) 705 Flammable 100%LEL (High-Temp) 705-STD (100%L) 705 Flammable 100%LEL SP-HT (20%L) Sensepoint Flammable 20%LEL (High-Temp) SP-HT (100%L) Sensepoint Flammable 100%LEL (High-Temp) SP-STD (100%L) Sensepoint Flammable 100%LEL

SP-PPM (10%L)

SP-PPM

SP-HT-NH3

Sensepoint Flammable PPM (10%LEL equiv)

Sensepoint Flammable PPM

Sensepoint Ammonia 30,000 PPM

Installation and Operation

1

In nonane detection applications, if an MPD-CB1 sensor is employed, use star rating 2; with SP-HT

sensors, use star rating 4.

66

XNX Universal Transmitter

NOTE

Figure 74. Current congured mV sensor and mV Available Sensor list

The rst screen displays the currently congured sensor. Select

✓

to navigate to the Sensor Selection screen. To select a new mV sensor, use the to select a sensor or the previously selected sensor, and return to the previous menu.

Set mA Sensor Type

switches to scroll through the list. Use ✓

✖

to discard the sensor selection, retaining

selection, retain the previously selected sensor, and return to the previous menu.

!

Note: This conﬁguration option is not available for XNX transmitters with EC sensors.

Gas Selection

Gas Selection sets the target gas for sensors capable of detecting multiple gases. The available gases for each of the capable sensors is determined by the device connected to the transmitter.

Figure 75. Set mA Sensor Type screen

Set mA Sensor Type identies the type of mA sensor attached to the transmitter. The available mA sensor choices are “Excel/

Optima” and “Other mA Sensor.”

Figure 76. mA Available Sensor list

To select a new mA sensor, use the switches to move

✓

through the list. Use

Installation and Operation

to make the selection or ✖ to discard the

Figure 77. Gas Selection menu

After selecting Gas Selection, the initial screen displays the

✓

current target gas. Select

for the congured sensor. Use the

to display the list of available gases

switches to scroll through

the list. A sample of the list is shown in Figures 80 and 81.

Figure 78. Available Target Gas list

Use ✓ to select the new gas or ✖ to discard the selection, retain

the previously selected gas, and return to the previous menu. When a new gas is selected, these screens are displayed:

67

XNX Universal Transmitter

NOTE

WARNING

!

WARNING

!

Figure 79. Select New Target Gas screens

!

Note: The gas selections available will vary with different types of sensors. Gases listed with a “-2” sufﬁx are compliant with 60079-20-1 LEL levels.

Warning: When selecting a new target gas for units with a Searchpoint Optima Plus, the sensor must be recalibrated.

These are the transmitter’s selectable gases:

• Butane (C4H10)

• Carbon Dioxide (CO2)

• Ethanol (C2H5OH)

• Ethylene (C2H4)

• Hexane (C6H14)

• Hydrogen (H2)

• Methane (CH4)

• Methanol (CH3OH)

• Propane (C3H8)

• Star 1 through Star 8

1

Warning: Do not use the transmitter in oxygen-enriched atmospheres. Concentrations displayed will be adversely affected by oxygen depletion.

Warning: High off-scale readings may indicate an explosive concentration of gas.

Installation and Operation

68

XNX Universal Transmitter

Changing the Gas or Units Name

If “Other mA Sensor” has been selected as the sensor type, the existing gas and units can be renamed.

✓

menu, select

to open the Gas Name menu. Select ✓ again to

open the Gas Name editing display. The rst letter of the current

selection will be highlighted (Figure 80).

From the Gas Selection

illustrations). The units name can be up to 5 characters long.

Gas Selections and Alarm Limits Based on mV Sensor Type

These tables show the tranmsitter’s programmable alarm limits.

Note: -2 Gas Selection %LEL values are per IEC 60079-20-1:2010

MPD-IC1 (5%V)

Alarm Limits (% Vol)

Carbon Dioxide

Figure 80. Gas Name screen / Gas Name editing screen

Use the switches to cycle through the 76 options (26 capital letters, 26 lower case letters, 10 numbers, 13 typographic

characters, and a space). When the rst character of the new

✓

gas name has been reached, select

to advance to the second character. Repeat this procedure with each character until the new gas name is displayed. In this example, “mA Sensor” has been changed to “Flow Sensor” (Figure 83). The name

✓

can be up to 15 characters long. Select

to return to the Gas Name screen. The new name will be displayed in reverse (light characters on a dark background). Select the display the Accept Settings screen. Select

switch twice to

✓

to accept the new

gas name. A “Settings Accepted” screen will be displayed briey,

followed by the Gas Selection menu.

Figure 81. Accepting the New Gas Name screens

✓

Follow the same procedure to rename the units (“%” in the

Lower Upper

MPD-IV1 (5%V/V, 100%LEL)

Methane Methane-1 Methane-2

Lower Alarm Limit Upper Alarm Limit 5.0% Vol 60% LEL 60% LEL

% Volume Reference

Lower Alarm Limit

(% LEL)

Upper Alarm Limit

(% LEL)

% Volume Reference

0.5% Vol 10% LEL 10% LEL

n/a 5.0 4.4

MPD-IF1 (100%LEL)

Propane-1 Propane-2

10 10

60 60

2.0 1.7

0.5

5.0

Installation and Operation

69

XNX Universal Transmitter

Hydrogen

Methane-1

Methanol

Methane-2

Ethelyne-1

Ethanol-1

Ethelyne-2

Ethanol-2

Propane-1

MPD-CB1 (100% LEL)

Butane-1

Propane-2

Butane-2

Hexane-1

Hexane-2

Star 1

Star 2

Star 3

Star 4

Star 5

Star 6

Star 7

Star 8

Lower Alarm

Limit (% LEL)

Upper Alarm

Limit (% LEL)

% Volume Reference

Lower Alarm

Limit (% LEL)

Upper Alarm

Limit (% LEL)

% Volume

Reference

10 10 10 10 10 10 10 10 10 10 10 10 10 10 20 20 20 10 10 10 10 10

60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60

4.0 5.0 4.4 5.5 2.7 2.3 3.3 3.1 2.0 1.7 1.5 1.4 1.2 1.0 n/a n/a n/a n/a n/a n/a n/a n/a

705-STD (100% LEL)

Star 1

Star 2

Star 3

Star 4

Star 5

Star 6

Hydrogen

Methane-1

Methanol

Methane-2

Ethelyne-1

Ethelyne-2

Ethanol-1

Ethanol-2

Propane-1

Propane-2

Butane-1

Butane-2

Hexane-1

Hexane-2

Star 7

20 20 20 25 25 30 30 30 25 30 30 30 50 50 50 30 25 20 20 20 15 15

60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60

4.0 5.0 4.4 5.5 2.7 2.3 3.3 3.1 2.0 1.7 1.5 1.4 1.2 1.0 n/a n/a n/a n/a n/a n/a n/a n/a

Star 8

Installation and Operation

70

XNX Universal Transmitter

Hydrogen

Methane-1

Methanol

Methane-2

Ethelyne-1

Ethanol-1

Ethelyne-2

Ethanol-2

Propane-1

705-HT (100% LEL)

Butane-1

Propane-2

Butane-2

Hexane-1

Star 1

Hexane-2

Star 2

Star 3

Star 4

Star 5

Star 6

Star 7

Star 8

Lower Alarm

Limit (% LEL)

Upper Alarm

Limit (% LEL)

% Volume

Reference

Lower Alarm Limit

(% LEL)

Upper Alarm Limit

(% LEL)

% Volume Reference

20 15 20 20 20 20 20 20 20 20 20 20 20 20 50 30 25 20 20 20 15 15

60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60

4.0 5.0 4.4 5.5 2.7 2.3 3.3 3.1 2.0 1.7 1.5 1.4 1.2 1.0 n/a n/a n/a n/a n/a n/a n/a n/a

705-HT (20% LEL), SP-HT (20% LEL)

Hydrogen Methane-1 Methane-2

5.0 5.0 5.0

20 20 20

4.0 5.0 4.4

Installation and Operation

71

XNX Universal Transmitter

Hydrogen

Methane-1

Methanol

Methane-2

Ethelyne-1

Ethanol-1

Ethelyne-2

Ethanol-2

Propane-1

SP-STD (100% LEL)

Butane-1

Propane-2

Butane-2

Hexane-1

Hexane-2

Star 1

Star 2

Star 3

Star 4

Star 5

Star 6

Star 7

Star 8

Lower Alarm

Limit (% LEL)

Upper Alarm

Limit (% LEL)

% Volume Reference

Lower Alarm

Limit (% LEL)

Upper Alarm

Limit (% LEL)

% Volume

Reference

20 15 20 20 20 20 20 20 20 20 20 20 20 20 50 30 25 20 20 20 15 15

60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60

4.0 5.0 4.4 5.5 2.7 2.3 3.3 3.1 2.0 1.7 1.5 1.4 1.2 1.0 n/a n/a n/a n/a n/a n/a n/a n/a

SP-HT (100% LEL)

Star 1

Star 2

Star 3

Star 4

Star 5

Star 6

Hydrogen

Methane-1

Methanol

Methane-2

Ethelyne-1

Ethelyne-2

Ethanol-1

Ethanol-2

Propane-1

Propane-2

Butane-1

Butane-2

Hexane-1

Hexane-2

Star 7

10 10 10 10 10 10 10 10 10 10 10 10 10 10 20 20 20 10 10 10 10 10

60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60

4.0 5.0 4.4 5.5 2.7 2.3 3.3 3.1 2.0 1.7 1.5 1.4 1.2 1.0 n/a n/a n/a n/a n/a n/a n/a n/a

Star 8

Installation and Operation

72

XNX Universal Transmitter

Lower Alarm

Limit (% LEL)

Upper Alarm

Limit (% LEL)

% Volume

Reference

Lower Alarm

Limit (% LEL)

Upper Alarm

Limit (% LEL)

SP-PPM (10% LEL)

Hydrogen Methane-1 Methane-2 FLM

2.0 2.0 2.0 2.0

10 10 10 10

4.0 5.0 4.4 N/A

SP-PPM

Hydrogen Methane

1000 ppm 1000 ppm

5000 ppm 5000 ppm

Lower Alarm

Limit (% LEL)

Upper Alarm

Limit (% LEL)

% Volume

Reference

SP-HT-NH3

Ammonia

3000 ppm

30000 ppm

n/a

% Volume

Reference

Installation and Operation

n/a n/a

73

XNX Universal Transmitter

WARNING

!

CAUTION

!

Range and Alarms

Warning: XNX Universal Transmitters carrying UL/CSA approvals that are conﬁgured for devices measuring %LEL will not allow adjustments to the full scale value. The range is ﬁxed at 100%.

The Range & Alarms option applies only to units with

certications other than UL/CSA.

Figure 82. Range & Alarms menu

Set Range (full-scale)

Range is sensor dependent. The Set Range option allows the full-scale range to be set for the sensor which is attached to the transmitter. The full-scale range is based on the capability of the

sensor. The selectable range for EC sensors is dened in the

Selectable Range column of the table in EC Replacement Sensors.

The selectable range for catalytic bead sensors is dened in the

Selectable Range column of the table in Catalytic Bead and IR

Replacement Sensor Cartridges.

When the Range option is highlighted, use the switches to decrease or increase the value. Use ✓ to accept the displayed

value and move to the next eld. When all elds have been

updated, use the

display. Use

When complete, the display will return to the Range Option screen.

Set Alarm Values

Set Alarm Values allows the values for Alarm Direction and Alarm Limits for both Alarm 1 and Alarm 2 to be set.

Caution: Alarm 1 and Alarm 2 values must be less than the upper limit value.

Use Alarm Direction to establish whether the alarm is to be

triggered by rising or falling gas concentrations. Alarms for most target gases are triggered by rising concentration levels but

certain gases; e.g., oxygen, can be measured for depletion levels. When the transmitter is congured with mV or OPTIMA

sensors and the meaurement units are LEL, the alarm level setting is limited to 60%LEL.

✓

switch to highlight ü on the right side of the

to accept the changes.

Figure 84. Setting the range value

✓

Installation and Operation

If the concentration of the target gas remains above the alarm values for 3 seconds or more, an alarm will be triggered.

Figure 83. Range Option screen

74

XNX Universal Transmitter

Figure 85. Alarm Direction screen

The icons next to the bell images indicate whether the alarm has been triggered by rising (

Use the

switches to highlight the appropriate trigger. Use ✓

to make the selection or

) or falling ( ) gas concentrations.

✖

to discard it.

When complete, the display will return to the main Range & Alarm screen. When all settings have been made, use

✓

move to the

on the display to Accept Settings.

Figure 89. Accept Settings screen

to

When the settings have been saved, the following screen will appear on the display.

Figure 86. Setting alarm rising/falling

The Alarm Limits selection sets the alarm trigger level for both alarms.

Figure 87. Alarm Limits screen

Use to set the desired alarm limit and ✓ select it. Repeat for each alarm.

Figure 88. Setting an alarm setpoint

Installation and Operation

Figure 90. Settings Accepted screen

See Specications for detailed EC cell information.

75

XNX Universal Transmitter

WARNING

!

Set Temperature Warning

Warning: There is a potential loss of sensitivity when the sensor is exposed to the extreme low and/or high temperature. Please check each sensor’s recommended operating temperature and sensitivity loss before disabling temperature warning.

The Set Temperature Warning option allows the temperature warning to be enabled or disabled. By default, this option is enabled.

In the Range & Alarms menu, use the Temperature Warning menu. Select

controls to select

✓

to enter the menu.

✓

When entering Set Temperature Warning menu, a message will be displayed either “DISABLE WARNING?” or “ENABLE

WARNING?” per the current setting. User will select disable or

enable temperature warning.

Set Deadband

The Set Deadband menu allows enabling and disabling of the reading deadband. The deadband is a range of value where the gas reading is displayed as zero.

In the Range & Alarms menu, use the Deadband menu. Select

✓

to enter the menu.

controls to select Set

✓

When entering Set Deadband menu, a message will be displayed either “DEADBAND OFF” or “DEADBAND ON” per the current

setting. User will select deadband off or on.

Question message when current Question message when current

setting is “DEADBAND ON” setting is “DEADBAND OFF”

Question message when current Question message when current

setting is “ENABLE” setting is “DISABLE”

Installation and Operation

Note: When deadband is off and the gas reading is between 0 and negative fault, XNX mA output will be ranged between 4 mA and

2.4 mA.

76

XNX Universal Transmitter

WARNING

!

Selecting the Numeric Format

If “Other mA Sensor” has been selected as the sensor type, the transmitter’s output can be displayed in one of three numeric formats. From the Ranges & Alarms menu, select the

✓ switch to open the Range menu (Figure 91). Select the ✓ switch again to display the Range Lower Limit menu. Select the

switch twice

to open the rst Numeric Format menu.

✓

Figure 91. Navigating to the rst Numeric Format menu

Select the ✓ switch to open the second Numeric Format menu, which displays the formats available for numerical display (see

Figure 92).

Latching/Non-Latching Alarms

Warning: There is a potential loss of sensitivity during exposure to high concentrations of H2S. Under these conditions, set the control unit to latch at overrange. In standalone conﬁguration, set alarms to latching. When resetting the overrange or alarm, verify correct operation of the transmitter.

Latching / Non-Latching is used to control whether Alarms 1 and

2 and faults will latch alarms.

Figure 93. Alarm Latching/Non-Latching screen

✓

Figure 92. Navigating to the second Numeric Format menu

✓ ✖ ✖

Select or to cycle through the three options. When the

✓

desired format is highlighted, select the selection the default display format. Select

switch to make the

✖

twice to return to

the Ranges & Alarms menu.

Installation and Operation

Figure 94. Alarm Latching screen

Select the or

icon beside the alarm limit to display the

Alarm Latching/Unlatching screen. Alarm latching determines

whether alarms that are triggered are automatically reset when the condition dissipates (latching off

) or remain active until an operator resets them manually (latching on ). Highlight the desired latching option with the switches. Use ✓ to accept it.

77

XNX Universal Transmitter

NOTE

CAUTION

Figure 95. Setting Alarm Latching/Unlatching screen

Use the same procedure to set the desired values for Alarm

2 and Faults. When all settings have been made, use

✓

navigate to the

When the settings have been saved, the following screen is displayed.

on the display. Use ✓ to accept settings.

Figure 96. Accept Settings screen

to

Set Units

The Set Units menu allows the units of measurement displayed on the transmitter main menu to be set. This option also sets

the units transmitted via HART, Modbus, or FOUNDATION

Fieldbus sensors attached to the transmitter, reporting concentrations in PPM or %VOL (except oxygen).

Figure 98. Set Units menu

To change the units, use the switches to highlight the units

icon. Use ✓ to select it. The transmitter’s display will change to the Display Unit Selection screen which shows the available choices for the sensor type installed. Use the switches to highlight the desired unit of measurement. Use ✓ to select it or

✖

to discard the selection.

Figure 97. Settings Accepted screen

!

Note: When non-latching is selected, external alarm latching is recommended.

Installation and Operation

Figure 99. Display Unit Selection screen

!

Caution: When changing units of measure, check alarm level settings for the proper units and change as necessary.

Once the units of measurement have been set, use the switches to navigate to the ‘ü’ to accept the values.

78

XNX Universal Transmitter

mA Levels

This option allows the user to select mA output levels for inhibit, fault, and overrange. Beam block and low signal apply to

Searchline (see the table in the next column).

Figure 100. mA Levels menu

Using the switches, move to the mA output to be changed and use ✓ to select it.

✓

Figure 101. Set mA Levels for Warning screens

Use the switches to decrease or increase the value until the desired value appears. Use ✓ to select the value and move to the

next setting. Repeat for each setting to be changed.

The default values and available output ranges for Inhibit, Warning, Overrange, Beam Blocked, and Low Signal are shown in the following table. See Warnings and Faults for more information.

Signal

I Inhibit 2.0 1.0 3.5

W Warning 3.0 1.0 3.5

O Overrange 21.0 20 22

B Beam Blocked 1.0 1.0 4.0

L Low Signal 1.0 1.0 4.0

Output (mA)

Default Min Max

Figure 102. Set mA Levels for Inhibit screen

After all changes have been made, use the switches to move to the ‘ü’ and use ✓ on the front panel to accept and save the settings. If ‘ü’ is not selected, none of the changes will be saved.

Figure 103. mA Settings Saved screen

Calibration Interval

Calibration Interval allows a desired interval for sensor calibration to be set for sensors attached to the transmitter. The transmitter will generate a warning when the interval is reached.

Installation and Operation

Figure 104. Calibration Interval menu

Calibration Interval will not appear when an IR personality board is attached and the mA sensor type is set as ‘Other mA Sensor’.

79

XNX Universal Transmitter

CAUTION

!

✓

The default calibration values for the “Calibration Required” diagnostic vary based on sensor type. This value can be reprogrammed in accordance with site requirements to ensure the highest level of safety. Before commissioning, verify the correct

operation of each sensor using calibration with a certied gas of

known concentration.

Although the calibration interval can be set to any value between 0 and 360 days, Honeywell Analytics recommends that the interval for electrochemical and catalytic sensors be set to 180 days (or fewer, in accordance with customer site procedures) to assure the highest level of safety.

Use the

to select it.

switches to highlight the current interval and use ✓

Figure 106. Saving New Interval and New Interval Accepted screens

Accept New Sensor Type

When replacing EC cells or mV sensors, use Accept New Sensor Type to load default parameters into the transmitter for calibration and sensor life. Accept New Sensor Type is also used when replacing an EC cell with another EC cell for a different target gas. (See Replacing with a Different Cartridge Type).

Figure 105. Edit Interval and Setting Interval Value screens

Use the switches to move to the desired position. Use ✓ to select it. Use the switches to

until the desired value is reached. (The minimum number of days is 0; the maximum number is dened by the sensor type.) Use the value and move to the next eld. Repeat for each eld. When all of the elds have been updated, use the

‘ü’

the save the settings.

Installation and Operation

on the right side of the display. Use ✓ on the front panel to

Caution: Setting the calibration interval to zero turns off the calibration notiﬁcation. This can seriously affect sensor performance.

decrease or increase

switches to highlight

the value

✓

to select

Figure 107. Accept New Sensor Type menu

When changing the target gas by inserting a new sensor, the

transmitter will prompt the user for a conrmation of the change

before adjusting to the properties of the new sensor.

Figure 108. Select New Sensor screen

In the display of the transmitter, the old sensor type and the new

sensor type will be displayed. Use ✓ to accept the new sensor

or ✖ to reject it.

80

XNX Universal Transmitter

Beam Block Options

The Beam Block Options menu is available only if the transmitter is connected to a Searchline Excel receiver.

Figure 109. Beam Block menu

If the infrared beam from the Searchline Excel transmitter is blocked or inhibited in such a way that the intensity of the beam drops to a level below the readable threshold set by the receiver, a warning will be generated by the transmitter. The Beam Block

Options menu allows the user to dene the maximum period of

time the infrared beam can be blocked and the percentage of signal loss before generating a warning through the transmitter.

Figure 110. Beam Block Warning Time screen

Use the switches to move to the desired beam block time option and use

or increase the value until the desired value appears. Use

select the value and move to the next setting.

✓

to select it. Use the switches to decrease

✓

to

When the beam is blocked longer than the value set in Time to Beam Block, a fault is generated by the transmitter.

Set Time to Fault sets the minimum time the beam is blocked before generating a fault.

Figure 112. Beam Block Fault Time screen

Use the switches to move to the desired beam block time option and use or increase the value until the desired value appears. Use

✓

to select it. Use the switches to decrease

✓

to

select the value and move to the next setting.

Figure 113. Setting Beam Block Fault Time screen

When the beam is blocked longer than the value set in Time to Fault, a fault is generated by the transmitter.

Low Signal Percentage sets the minimum percentage value of a beam that is not blocked. When the percentage decreases below

the dened percentage, a fault is generated.

Figure 111. Setting Beam Block Warning Time screen

Installation and Operation

Figure 114. Low Signal Percentage screen

81

XNX Universal Transmitter

Use the switches to move to the desired Low Signal

✓

Percentage and use

to select it. Use the switches to

decrease or increase the value until the desired value appears.

Use ✓ to select the value and move to the next setting.

Figure 115. Setting the Low Signal Percentage

Once the values for Beam Block Warning, Beam Block Fault and Low Signal Percentage have been set, use the

switch to

highlight the ‘ü’ on the right side of the display. Then use ✓ to accept the changes to the transmitter. If ‘ü’ is not highlighted, none of the changes will be saved.

Figure 116. Accept Beam Block Changes screen

Path Length

The distance (in meters) between the transmitter and the receiver is set through the Path Length menu. This menu is available only if the transmitter is connected to a Searchline Excel sensor.

Figure 118. Path Length menu

Setting the Path Length or distance between the transmitter and receiver of the Searchline Excel lets the devices determine the optimum settings for the beam strength for the application.

Figure 119. Current Path Length Setting screen

Use the switches to move to the desired Path Length

✓

setting and use decrease or increase the value until the desired value appears.

Use ✓ to select the value and move to the next setting.

to select it. Use the switches to

Figure 117. Beam Block Changes Accepted screen

Installation and Operation

Figure 120. Setting Path Length screen

82

XNX Universal Transmitter

NOTE

!

Once the values for Path Length have been set, use the switch

✓

to highlight the ‘ü’ on the right side of the display. Use the accept the changes.

to

Note: The XNX Unit ID is not the same as the HART tag in XNX applications using HART protocol.

Edit ID

Figure 121. Accepting Path Length Changes

Figure 122. Path Length Changes Accepted screen

Unit ID

The Unit ID option allows a unique unit ID of up to 18 characters

to be set for each transmitter. This character string can be broadcast over any of the supported communication options,

providing a means to create a unique identication for each

transmitter for accurate reporting. Available characters are A-Z,

a-z, 0-9 and special characters ? ! * % ( ) : & / , # + -

Figure 123. Unit ID menu

Each transmitter is assigned a default Unit ID at the factory. The Edit ID menu allows the assigned ID to be modied.

Figure 124. Edit Unit ID screen

From the Edit ID Screen, use the switches and ✓ to select

Edit ID. The current Unit ID is displayed. When editing an existing

ID, the list of available characters begins at the value displayed.

Figure 125. Editing the Unit ID

Use the ✓ switch to highlight the rst character to be changed. Use the switches to decrease or increase the value until the desired value appears. Use ✓ to accept the new value and move

to the next character. Repeat for each character to be changed.

The Unit ID can be up to18 characters long.

Installation and Operation

83

XNX Universal Transmitter

Clear ID

This option clears the current set Unit ID.

Figure 129. Relay Options screen

Figure 126. Clear Unit ID and Cleared Unit ID screens

Set ID to Default

The Set ID to Default option returns the Unit ID to the factory

default.

Figure 127. Set ID to Default screen

Once all changes have been made, Accept Settings must be

selected before exiting the Unit ID menu. When all changes are

saved, the transmitter will display the Settings Accepted screen.

Figure 128. Accept Settings and Accepted screens

Relay Options

XNX relays can be set to Energized or De-energized. The default is De-energized. The two states for each relay are represented by the symbols

for energized and for de-energized.

Figure 130. Alarm 1 Relay Current State and Setting New State screens

Use the switches to move to the desired alarm and use ✓ to select it. Use the

✓

relay. Use

to accept the new state. Once the transmitter has

switches to change the state of the

accepted the new information, a Settings Accepted screen appears.

Figure 131. Accept New Alarm Relay Settings and new Settings Accepted screens

The Relay Options menu allows the relays for both alarm levels

to be congured. This menu is available only if the transmitter is

equipped with the optional relays.

Installation and Operation

84

XNX Universal Transmitter

Fieldbus Options

The Fieldbus Options menu allows conguration of the HART address or the optional Modbus eldbus address and baud rate.

Figure 132. Fieldbus Options screen

Select the Fieldbus Options icon to activate the HART/Modbus screens to allow selection of the protocols to be congured or changed. If the transmitter is congured without HART or

Modbus, only the installed options will be visible.

Figure 134. HART Address and Address Value screens

Use the switches to move to the HART option and use ✓ to select it. Use the until the desired option is highlighted. Use

switches to scroll through the options

✓

to accept the new state. See Local HART Interface and HART Protocol for more information on available HART modes.

Figure 133. HART Options screen

The HART menu provides the ability to select the HART mode. From the HART screen, use the

✓

HART option, then select

. This displays the HART address

switches to highlight the

screen where the device address and whether the HART protocol is active in the unit can be set. To set the address, use the switches to highlight the number in the top line (between 0 and

✓

63) and use

to select it. Use the switches to decrease or increaset the value until the desired value appears. Use ✓ to select the value and move to the next setting.

Installation and Operation

Figure 135. HART Mode screens

Once the values for the HART address and Mode have been set, use the

switches to navigate to the ‘ü’ then select it to save

the changes to the transmitter.

Figure 136. HART Settings Accepted screen

When the Modbus option is available, use the switches to move to the Modbus icon and use ✓ to select it. The Modbus option allows the address and communication baud rate to be set.

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XNX Universal Transmitter

Figure 137. Modbus Options screen

From the Set Fieldbus Address screen, select ✓. To set the Fieldbus address, use the position and use

✓

to select it. Use the switches to

switches to move to the desired

decrease or increase the value until the desired value appears.

Use ✓ to select the value and moves to the next setting.

Figure 138. Set Fieldbus Address and Address Value screens

The communications baud rate can be set from this screen. Use

the switches to highlight the proper baud rate and select ✓.

✓

Figure 139. Set Baud Rate screens

Once the values for the Fieldbus address have been set, use

switches to navigate to the ‘ü’ then select it to save the

the changes.

Figure 140. Accept Settings and Fieldbus Address Settings Accepted screens

Conﬁgure Security

Congure Security is used to set or reset the level 1 and level 2 passcodes that control access to the conguration menus of the

transmitter.

Figure 141. Congure Security screens

Easy Reset from Main Status

The Easy Reset from Main Status option controls the ability to reset faults, warnings, and alarms from the General Status screen (see The General Status Screen).

Use the switches and ✓ to select the lock icon . The Lock/ Unlock screen will be displayed. Choose ‘Lock’ without password access. The ‘Unlock’

choice allows resets

without requiring login or a passcode.

to prevent reset

Installation and Operation

Figure 142. Lock/Unlock screen

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XNX Universal Transmitter

X

WARNING

!

X

WARNING

!

Level 1 and Level 2 Passcodes

Level 1 and 2 passcode screens give the administrator the ability to assign new passcodes for either or both access levels.

From the Congure Security Screen, use the highlight Passcode 1. Use ✓ to choose the rst digit and the switches to decrease or increase the values. Use

new value and move to the next digit. Repeat until all four digits have been selected. Follow the same procedure to change the Level 2 passcode.

Figure 143. Setting the Level 1 passcode

Use the switches to move to “Accept Settings” on the display. Choose ✓ to save the settings to the transmitter.

switches to

✓

to accept the

Verifying the Conﬁguration

Test Menu

The test menu icons are shown in this table:

Symbol Description Symbol Description

Inhibit Force Relay

Force mA Output Alarm/Fault Simulation

Warning: Keep the passwords in a secure area to prevent unauthorized access to the transmitter. If the passwords are lost, resetting the transmitter will require a service technician.

Inhibit

Warning: When the transmitter is placed in Inhibit Mode, alarms are silenced. This will prevent an actual gas event from being reported. Inhibit Mode must be limited to testing and maintenance only. Exit Inhibit Mode after testing or maintenance activities.

Figure 144. Accept Settings and Security Settings Accepted screens

Installation and Operation

Figure 145. Inhibit screen

The Inhibit mode is designed to prevent alarms from being triggered during testing or maintenance.

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XNX Universal Transmitter

CAUTION

Figure 146. Inhibit menu

Use the switches to inhibit alarms by selecting Inhibit On with the

✓

. The conrmation screen appears.

Figure 149. Inhibit Status screen

When the transmitter is in Inhibit mode, the General Status display will display the inhibit icon

.

Force mA Output

!

Figure 147. Conrm Inhibit On screen

Select ✓ to place the transmitter alarms into inhibit mode. Select

✖

will cancel the choice and leave the alarms in normal operating

mode.

Figure 148. Conrm Inhibit Off screen

To return from Inhibit mode to to the normal monitoring mode, select Inhibit Off with the ✓. A conrmation screen appears.

✓

Select

to remove the transmitter from Inhibit mode. Select ‘X”

to cancel the choice and leave the alarms in Inhibit mode.

Installation and Operation

Caution: The mA output set in this menu will revert to the normal operating values when exiting the Test Menu. For more information on setting the mA output levels for normal operation, see mA Levels.

Force mA Output allows peripheral devices driven by mA output from the transmitter to be tested. Based on the mA output values set in the mA Levels option (see mA Levels), the operator chooses the mA level to output to the device.

Figure 150. Force mA Output screen

The New mA Output screen shows the current mA output in the left column. The output can be controlled by changing the value in the column on the right.

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XNX Universal Transmitter

CAUTION

!

Figure 151. New mA Output screen

Once the new value is input, use the switches to move to the ‘ü’ and use the

✓

magnetic switch on the front panel to set

the mA output.

Force Relays

Caution: Any relay conditions set in this menu will revert to the normal operating values when exiting the Test Menu. For more information on setting the relay options for normal operation, see Relay Options.

The Force Relay menu allows peripheral devices driven by relays from the transmitter to be tested. Depending on the relay options set in the Relay Options menu (see the Relay Options section), the relay will be open or closed.

Figure 153. Relay State screen

Once the new value is input, use the switches to move to

✓

the ‘ü’ and use the

magnetic switch on the front panel to

change the condition of the relay.

Alarm/Fault Simulation

Alarm and Fault simulation work in tandem with the previous sections (Force mA Output and Force Relays) to allow testing of the transmitter and the peripheral warning and safety devices. Figure 156 shows the menu choices for selecting an alarm or fault simulation.

Figure 154. Alarm/Fault Simulation screen

Selecting an alarm level to simulate activates a conrmation

screen.

Figure 152. Force Relays screen

The Relay State screen shows the current relay conguration in

the left column. The output can be controlled by changing the value in the column on the right.

Installation and Operation

Figure 155. Alarm/Fault Simulation menu

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XNX Universal Transmitter

CAUTION

!

WARNING

!

Figure 156. Conrmation screen

Selecting ✓ will simulate the alarm from the transmitter. If the ✖ is selected, the simulation will be aborted.

This conrmation screen will appear.

Figure 160. Alarm/Fault Reset screen

Select ✓ to reset the alarms, faults, or warnings generated by the simulation. If the

✖

is selected, the simulation continues.

Figure 157. Warning and Fault Simulation screens

To simulate a Warning or Fault from the transmitter, select the appropriate icon from the menu.

Figure 158. Fault Simulation Conrmation screen

A conrmation screen will appear. Select ✓ to simulate the warning

or fault from the transmitter. If the

will be aborted. Use Alarm/Fault Reset to reset alarms, faults, or

warnings generated by the simulation.

Figure 159. Alarm/Fault Reset screen

Installation and Operation

✖

is selected, the simulation

Caution: Relays and LEDs will return to their initial states after simulations are completed unless faults and alarms are set to latching by the user.

Warning: After changing parameters with a handheld device, verify that the parameter settings are correct at the transmitter.

90

XNX Universal Transmitter

?

Information Menu

The Information Menu Displays the current status information for these parmeters:

Symbol Description Symbol Description

Show Alarm/Fault Status Show Gas Data

Show Date/Time Show Range/Alarm Settings

Show Transmitter Data Show mA Level Settings

Show Transmitter Status Show Relay Settings

Show Sensor Data Show Fieldbus Settings

Show Sensor Status

Show Event History

Alarm/Fault Status

The ‘ü’ will be highlighted. Select ✓ to reset all faults and alarms

generated by the transmitter then return to the Alarm/Fault

✖

Status screen. Select the

switch to return to the Alarm/Fault

Status screen without resetting faults or alarms.

Date & Time

Figure 163. Date/Time screens

The Date and Time screens display the date and time in the formats currently set on the transmitter. See Set Date and Time.

Transmitter Data

Figure 161. Alarm/Fault Status screen

Select Alarm/Fault Status to display the Alarm/Fault Status screen allowing faults and alarms to be reset.

Figure 162. Alarm/Fault Status screen

Installation and Operation

Figure 164. Transmitter Data screen

Using the

switches, t

he Transmitter Data displays the ID,

part number, serial number, and version number of the rmware.

Figure 165. Transmitter ID, Part Number and Serial Number screens

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XNX Universal Transmitter

?

including temperature, 4-20 mA output value, and supply voltage.

Figure 166. Transmitter Software, 4-20 Monitor and Option Version screens

Transmitter Data is also used to update the conguration of the

transmitter when an option board is added or changed. To add the new option, use the

switches to navigate to the Option Revision screen, then swipe the ✓ magnetic switch on the front panel to display the Accept New Option Screen. The screen will show the current option (if any) and the newly installed option.

Use the

switches to highlight the option then swipe the ✓ magnetic switch on the front panel to accept the change. The transmitter will update the part number of the unit. The new option will then be operational.

✓ ✖

Figure 167. Updating the Transmitter for Option Boards Added or Changed screens

Transmitter Status

Figure 169. Transmitter Temperature and Supply Voltage screens

Sensor Data

Figure 170. Sensor Data screen

Sensor Data displays information about the transmitter including sensor type and sensor software revision.

Figure 171. Sensor Type and Software screens

Figure 168. Transmitter Status screen

Transmitter Status displays information about the transmitter

Installation and Operation

92

XNX Universal Transmitter

?

Sensor Status

Figure 172. Sensor Status screen

Sensor Status displays the temperature of the sensor attached to the transmitter. When equipped with an EC or mV sensor, sensor life is also displayed.

Figure 173. Sensor Temperature screen

Gas Data

Figure 174. Gas Settings screen

Gas Data displays the current detectable gas as congured for the attached sensor.

Figure 175. Gas Abbreviation and Full Scale screens

Installation and Operation

93

XNX Universal Transmitter

Range/Alarm Settings

Figure 176. Range/Alarm Settings screen

Range/Alarm Settings displays the currently congured alarm information.

Figure 177. Alarm Display Rang screen

mA Level Settings

Figure 178. mA Level Settings screen

The mA Level Settings section shows the current values for mA output for Inhibit, Warning, and Overrange output.

Figure 179. mA Output Inhibit, Warning and Overrange screens.

Installation and Operation

94

XNX Universal Transmitter

Fieldbus Settings

Figure 180. Fieldbus Settings screen

Fieldbus Settings displays the current conguration of both HART and Modbus. To change the settings see Fieldbus Options. HART

displays the current HART address assigned to the transmitter.

Figure 181. HART Configuration Settings screens

Modbus displays the current address and communication data rate assigned to the transmitter.

Figure 182. Modbus Conguration Display screen

Relay Data

The Relay Menu is enabled only if the transmitter is equipped with the optional relays.

Installation and Operation

95

XNX Universal Transmitter

Figure 183. Relay Data screen

Figure 184. Relay State screens

Relay Data displays the current setting of the optional relays on the transmitter. To change the relay settings, see Relay Options.

Installation and Operation

96

XNX Universal Transmitter

?

Event History

The Event History screen lists all events that are activated by the transmitter’s settings. Five types of events are recorded: reset messages, alarm messages, warning messages, fault messages, and informational messages. The events are listed in chronological order beginning with the latest.

Events can be displayed through ve browsing modes:

• all events in order of occurrence

• all events by hour

• all events by day

• only the alarm events, in order of occurrence

• only the fault events, in order of occurrence

The Event History screen groups events into chronological order (beginning from the unit’s installation). Events can also be viewed by hour or by date.

hour

Events listed in o’clock since the transmitter’s installation can be isolated. To view all events in hour order:

1. Use the magnetic wand to lter the display by hour.

2. Navigate through the displayed times.

To isolate all of the events from a specic

1. Use the magnetic wand to lter the display by day.

2. Navigate through the displayed days.

3. Filter the list by all events. This will display all events that occurred on that day.

order are grouped without regard to date. For example, all events that have occurred between noon and 1:00

day

:

When the transmitter is congured with the Searchline Excel or Searchpoint Optima, the data reported in the event will be the fault

code from the Searchline Excel or Searchpoint Optima. The transmitter records up to 1280 events in a circular buffer. When event 1281 is recorded, the oldest event will be deleted from the

list.

Installation and Operation

97

XNX Universal Transmitter

NOTE

!

Note: The leading zeros of faults and warnings are not displayed in the event list; i.e., Fault 011 is displayed as Fault 11.

Figure 185. Event History screen

Figure 186. Chronological Event list

Installation and Operation

Figure 187. Chronological Event list by hour

Figure 188. Chronological Event List by Day

98

Honeywell XNX Operating Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Safety and Information

Warnings

Hazardous Location Installation Requirements

Special Conditions for Safe Use

Cautions

Notes

Information

Revision History

Contacting Honeywell Analytics

Introduction

Product Description

The Transmitter

20 mA/HART Output

Communications

Patents

Glossary

Product Overview

Enclosure

Cover

Options

Local HART

Relays

Modbus

FOUNDATION Fieldbus

Accessories

The Front Panel

Controls and Navigation

The General Status Screen

Entering the Menu

Displaying Transmitter Information

Main Menu

Menu Navigation

Installation and Operation

Sensor Mounting and Location

Mounting the Transmitter

Wiring the Transmitter

Isolation

General Wiring Considerations

Loading

Circuit Protection

Distance Considerations for Installation

Single Transmitter

Multiple Transmitters Connected to a Single Power Source

Power Source Selection

Wire Selection

Single Transmitter Distances

Daisy-Chained Transmitter Distances

POD Connections

4-20mA Output, Common Connections, and Power

Settings

Terminal Block Connections

FOUNDATION Fieldbus Wiring

EC Personality Wiring

Electrochemical Sensor Installation

EC Sensor Remote Mounting Kit

mV Personality Wiring

mV Remote Sensor Mounting

IR Personality Wiring

Searchpoint Optima Plus/Searchline Excel Connections

Connecting Generic mA Devices

Attaching the Searchpoint Optima Plus to the Transmitter

Searchline Excel/Searchpoint Optima Plus Remote Installation

Searchpoint Optima Plus/Searchline Excel Wiring

Options

Local HART Interface

Point-to-Point Mode

Multidrop Mode

Cable Length

Relays

Modbus

FOUNDATION Fieldbus

Powering the Transmitter the First Time

Remote Calibration of MPD Sensors

Changing the Gas or Units Name

Gas Selections and Alarm Limits Based on mV Sensor Type