Honeywell DX100 SearchPoint Optima Plus Infrared Explosive Gas Detector Instruction Manual

: June 13, 2024
: Honeywell

Table of Contents

INTRODUCTION
SAFETY
MAIN FEATURES
INSTALLATION
- MECHANICAL INSTALLATION
- ELECTRICAL INSTALLATION
SPECIFICATIONS
CERTIFICATION
Customer Service:
701 Kalan Science Valley (1)
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

Honeywell DX100 SearchPoint Optima Plus Infrared Explosive Gas Detector

INTRODUCTION

The DX100 (I) Termination Unit is an explosion proof junction box that provides a signal connection point and mounting point for the Honeywell Analytics Search point Optima or Optima Plus gas detectors.

Caution:

The DX100 (I) Termination Unit can only be used with Search point Optima or Optima Plus gas detectors.

This guide covers the basic on-site mechanical and electrical installation of the unit. Refer to the DX100 Series Termination Units Technical Handbook (Part No: 2104M0701) for more detailed information about the DX100 (I).

The unit is certified to UL and CSA standards and is intended for use in hazardous environments. The DX100 (I) provides:

terminals for connecting the gas detector and the field cabling
an Intrinsically Safe (IS) connection point for the Hand Held Interrogator (SHC1)
a local mounting point for the Search point Optima or Optima Plus gas detector

The unit features:

three 3/4″ NPT cable/conduit entries
two terminal blocks
a voltage clamp and a communications link entry socket

One of the three cable/conduit entries (usually the left-hand one) is used to mount the Search point Optima or Optima Plus gas detector directly to the box. The Optima and Optima Plus output a 4-20mA signal that is sent via the Termination Unit field wiring back to the controller.

The voltage clamp and the external socket provide the IS connection to the Handheld Interrogator (SHC1).

The SHC1 allows the operator to communicate with the attached gas detector to commission, calibrate or diagnose the system.

Full details about the Search point Optima and Optima Plus units can be found in their documentation, which includes operation of the SHC1.

Caution:

Only the SHC1 Handheld Interrogator must be connected to the DX100 (/) Communications Link Entry Socket.

Honeywell Analytics Limited reserve the right to change or revise the information supplied in this document without notice and without obligation to notify any person or organization of such revision or change. If further details are required that do not appear in this document contact Honeywell Analytics Limited or one of its agents.

SAFETY

Ensure that you read and understand this document BEFORE installing/ operating the equipment. Pay particular attention to the Safety Warnings.

WARNINGS

The DX100 (I) Termination Unit is certified for and intended for use in potentially hazardous areas. Install and use the DX100 (I) Termination Unit in accordance with the latest regulations. No modifications to the unit is permitted without reference to the relevant certifying authority
Install UL approved and certified e ailment including field wiring in strict accordance with the articles of the National Electrical Code for Division 1 Hazardous Locations (NFPA 70).
Install CSA approved and certified element including field wiring in strict accordance with Canadian lectical Code, Part 1.
For installations elsewhere, the appmpriate local or national regulations should be used.
The Code of Practice r,egardl ng Selection, Installation, Use And Maintenance Of Apparatus For The Detectlon Of Combustible Gases (Other Than For Min’ing Applicati0ns Or Explosive Processing And Manufacture) must be complied ith ,
The DX100 (I) Termination Unit must be pro(!\erly earthed to protect against electrical shock, minimise electrical interference and comply with IS Safety Requirements.
Dismantling or reP.air of equiJlment should be carried out in the safe area only.
Do not drill holes in the housing as this will invalidate the explosion protection.
In order to maintain electrical safety, the unit must not be operated in atmospheres with more than 21 % oxygen.
Do not open the enclosure in the presence of an explosive atmosphere.

CAUTIONS

Only the Handheld Interrogator (SHC1) must be connected to the Termination Unit’s communication link entry socket.
The DX100 (I) Termination Unit can only be used with Search point Optima or Optima Plus gas detectors.

MAIN FEATURES

This section identifies the main features of the Termination Unit and also details important dimensions for the unit when installing.

INSTALLATION

It is important before starting these procedures that the detailed information provided in the DX100 Series Termination Units Technical Handbook about DX100 (I) installation has been carefully considered at the planning stage.

The following points should be noted.

General Installation Guidelines

Read the Warnings and Cautions at the beginning of this document and all the relevant instructions before starting any of the installation procedures.
Identify external cable requirements and the necessary cable entry ports to be used on the Termination Unit.
Refer to the documentation for the associated control system for details about external network connection information, field wiring, interconnections, etc.
Refer to the assoc1ated Search point Optima handbook for details about the gas detector.

MECHANICAL INSTALLATION

Mechanical Installation Guidelines

Identify a suitable location where the Termination Unit can be mounted. The unit should be fitted to a flat surface.
When fitting a Termination Unit consideration should be made regarding the probability of mechanical impacts and interference from other equipment and apparatus.

Procedure

This procedure describes how the DX100 (I) is installed at the mounting location and then the Optima gas detector is fitted to the Termination Unit.

Securely fit the Termination Unit at the required monitoring point. Use the two Termination Unit mounting lugs. Ensure the communications link entry socket connect for is located at the bottom. This is to fulfil the requirement to position the Optima sensor horizontally so that the risk of fouling the gas detector’s optical surfaces is reduced.
Remove the Termination Unit lid.
Use the lugs on the lid to unscrew it anticlockwise from the Termination Unit base.
Fit the Optima or Optima Plus detector to the left-hand entry.
First remove the 314 NPT approved blanking plug.
Fit approved certified 3/4 N PT cable glands or conduit fittings to the Termination Unit cable/conduit entries as required.
Fit the external field wiring through the cable/conduit fittings and secure.
Terminate the Optima and field wiring. Refer to Electrical Installation.

The diagram shows a typical Search point Optima Plus and DX100 (I) installation .

ELECTRICAL INSTALLATION

Electrical Installation Guidelines

Isolate all associated power supplies and ensure that they remain OFF during the procedures.
Ensure that approved and certified cable glands have been fitted to the Termination Unit cable entries where used for field wiring, with sealing washers where necessary to maintain the ingress protection rating.
Ensure that any cable gland/conduit locking rings are fitted before terminating the cables.
Make sure that a conduit sealing fitting is installed within 460mm ( 18in.) of the Termination Unit on all conduit runs
Ensure that approved and certified blanking plugs are fitted to all unused Termination Unit cable entries.
The Termination Unit mounting plate must be bonded to a protective earth.
Suitable crimps and/or ferrules must be fitted when connecting more than one wire to a Termination Unit terminal.
The field terminals of the Termination Unit accept single or multi-stranded wire from 22-12 AWG (0.326 to 3.31 mm’). Cables should be routed carefully to avoid physical and environmental hazards such as mechanical stress and high temperatures.
In order to ensure correct operation and to meet requirements for RFI and EMC, it is recommended that all field cables are screened with the cable screen connected at one end only (see the DX100 Series Technical Handbook for further details – Part No: 2104M0701).

Procedure

Connect the gas detector and field Wiring to the terminal blocks in the DX100 (I) Termination Unit according to the following wiring diagram and table.

Term i nal /| Gas Detector W i ring| Field Wir i ng
---|---|---
Number| Function| C olour|
TB1| 1| | |
2| A| Orange|
3| B| Blue|
4| | |
TB2| 1| 24VDC| Red|
2| | | +24VDC – Supply
3| 4-20mA| White| 4-20mA – Output
4| | |
5| ov| Black|
6| | | 0V – Supply
Earth

Posts

| | Earth| Green/Yellow| Earth

Barrier Earth

SPECIFICATIONS

Connections

Inputs Search point Optima Search point Optima Plus Field Wiring.
Outputs IS protected SHC1 Handheld Interrogator communications (RS485) 4-20mA (Non-isolated).
Power Supply 18-32VDC.
Environmental
Operating temperature UL -25°C to 40°C (-40°F to 104°F).
CSA -55’C to 40°C (-67°F to 104°F) .
Enclosure One IS protected Communications Link Entry Socket for connecting the SHC1 Handheld interrogator. Three 3/4 NPT entries (one each side and one in the bottom) to accept gas detector and field cabling or 3/4″ conduit.
Entry Socket 212mm (8.35in.) wide x 152.4mm (6in .) high x 117.5mm (4.625in.) deep. Add approximately 60mm (2.36in .) to the height for the Communications Link Entry Socket.
Cable/Conduit Entries
size 2.5kg.
Weight Aluminium.
Material Ingress Protection Certification Field Wiring IP66 to BS EN 60529:1992, Degrees of protection provided by enclosures (IP code). UL Class 1, Div 1, Groups B, C, D CSA Class 1, Div 1, Groups B, C, D (see 6. Certification for details) 22-12 AWG (0.326 to 3.31 mm’ ), 105C

CERTIFICATION

This section specifies UL and CSA certification information for the DX100 (I) Termination Unit. It includes relevant Control Drawings.

A Honeywell Analytics certification label is located on the right-hand side of the DX 100 (I) Termination Unit.

The label contains all the relevant information regarding the product’s identification and certification state.

The part number of the certified UL/CSA DX100 (I) Termination Unit is 2104B2381.

The following diagrams show the Honeywell Analytics UL and CSA Certification Labels. The label content for the CSA label is explained. The UL label is similar.

CSA I UL Certification Label

UL Control Drawing

CSA Control Drawing

Please Note:

Please Note:
While every effort has been made to ensure accuracy in this publication, no responsibility can be accepted for errors or omissions. Data may change, as well as legislation, and you are strongly advised to obtain copies of the most recently issued regulations, standards, and guidelines.
This publication is not intended to form the basis of a contract. © 2005 Honeywell Analytics

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