Honeywell OELD User manual

Operating Instructions
OELD
Smart Junction Box
(3018M5000_1-3)

OELD User Manual (3018M5000_1-3) Revision 1, Issue 3
Content
1 Safety.......................................................................................................................................................2
1.1 Safety Warnings and Information.....................................................................................................2
1.2 Disposal............................................................................................................................................2
1.3 Waste Electrical and Electronic Equipment (WEEE) Directive........................................................3
1.4 Important Information.......................................................................................................................3
2 Overview..................................................................................................................................................5
2.1 Introduction ......................................................................................................................................5
2.2 Optional Accessories .......................................................................................................................7
2.2.1 Pipe Mount Kit (1226A0358).....................................................................................................7
2.2.2 Ceiling Mount Bracket Kit (1226A0355) ...................................................................................7
2.2.3 Sunshade (94000-C-1018).......................................................................................................7
3 Installation ...............................................................................................................................................8
3.1 Siting ................................................................................................................................................8
3.2 Mechanical Installation.....................................................................................................................8
3.2.1 Installation to a Flat Surface.....................................................................................................8
3.2.2 Optional pipe and celling mount installation .............................................................................9
3.2.3 Using Excel Mounting Plate......................................................................................................9
3.3 Electrical Installation ......................................................................................................................10
4 Electrical Connections...........................................................................................................................11
4.1 Power Supply.................................................................................................................................12
4.1.1 Example Cable Length Calculation ........................................................................................12
4.2 Cabling Recommendation..............................................................................................................12
4.3 Earth Regimes ...............................................................................................................................13
4.4 Fix the 4-20mA Input......................................................................................................................13
5 Configuration .........................................................................................................................................14
5.1 General...........................................................................................................................................14
5.2 Configuration Process....................................................................................................................15
6. Operation..............................................................................................................................................16
6.1 LCD ................................................................................................................................................16
6.1.1 Start-up ...................................................................................................................................16
6.1.2 Normal Operation ...................................................................................................................17
6.1.3 Display Screen........................................................................................................................17
6.2 BLE Communication (Optional)......................................................................................................18
6.3 Alternative communications (SHC-1).............................................................................................18
7. OELD Mobile App.................................................................................................................................20
7.1 Install mobile App...........................................................................................................................20

OELD User Manual (3018M5000_1-3) Revision 1, Issue 3
7.2 Run OELD Mobile App...................................................................................................................20
8. Maintenance.........................................................................................................................................24
8.1 General...........................................................................................................................................24
8.2 Display Module Replacement ........................................................................................................24
9. Faults and Warning ..............................................................................................................................25
10 Specifications ......................................................................................................................................26
11. Ordering Information...........................................................................................................................28

OELD User Manual (3018M5000_1-3) Revision 1, Issue 3
1 Safety
1.1 Safety Warnings and Information
Special Conditions for Safe Use – Terminals
In order to comply with the ATEX Certification, the following special conditions of use must be ad-
hered to: -
1. Not more than one single or multiple strand lead shall be connected into either side of any terminal,
unless multiple conductors have been joined in a suitable manner, e.g. two conductors into a sin-
gle insulated crimped boot lace ferrule.
2. Leads connected to the terminals shall be insulated for the appropriate voltage and this insulation
shall extend to within 1 mm of the terminal throat.
3. All terminal screws, used and unused, shall be tightened down to between 0.5 N m and 0.7 N m.
4. The terminals shall only be installed and wired with cable in an ambient temperature of -10 °C to
+80 °C.
1.2 Disposal
Dispose of the product in accordance with local regulations. The materials used are: -
Enclosure Aluminum or SS316
Lid Aluminum or SS316
Continuity plate Zinc plated steel
WARNING
1. Installation must be in accordance with the recognized standards of the appropriate authority
in the country concerned. For Europe see EN 60079-14 and EN 60079-29-2.
2. Do not open the enclosure when energized or when an explosive atmosphere may be pre-
sent.
3. Operators should be fully aware of the action to be taken if the gas concentration exceeds
the alarm level.
4. Do not modify or alter the construction of the product as essential safety and certification
requirements may be invalidated.
5. Assessed under ATEX only for ignition hazards.
6. Access to the interior of the product, when carrying out any work, must be conducted only by
trained personnel.
7. Do not use the OELD LCD backlit status indication for safety-related purposes.
8. In order to maintain electrical safety, the unit must not be operated in atmospheres of more
than 21% oxygen.
9. To minimize the risk of electrostatic charge, provisions shall be made for an adequate
grounding, equipment shall be installed in a manner so that accidental discharge shall not
occur

OELD User Manual (3018M5000_1-3) Revision 1, Issue 3
1.3 Waste Electrical and Electronic Equipment (WEEE) Directive
This symbol indicates that this product and/or parts of the product may not be treated as
household or municipal waste. Waste electrical products (end of life) should be recov-
ered/recycled where suitable specialist WEEE disposal facilities exist. For more infor-
mation about recycling of this product, contact your local authority, our agent/distributor or
the manufacturer.
1.4 Important Information
This manual is for use with the OELD junction box only.
Honeywell Analytics can take no responsibility for installation and/or use of its equipment if not done
so in accordance with the appropriate issue and/or amendment of the Operating Instructions.
The reader of these Operating Instructions should ensure that it is appropriate in all details for the
exact equipment to be installed and/or operated. If in doubt, contact Honeywell Analytics for advice.
The following types of notices are used throughout these Operating Instructions:
Caution: Identifies a hazardous or unsafe practice which could result in minor injury to per-
sonnel, or product or property damage.
Note: Identifies useful/additional information.
Every effort has been made to ensure the accuracy of this document, however, Honeywell Analytics
can assume no responsibility for any errors or omissions in this document or their consequences.
Honeywell Analytics would greatly appreciate being informed of any errors or omissions that may be
found in the content of this document.
For information not covered in this document, or if there is a requirement to send com-
ments/corrections about this document, please contact Honeywell Analytics using the contact details
given on the back page.
Honeywell Analytics reserve the right to change or revise the information supplied in this doc-
ument without notice and without obligation to notify any person or organization of such revi-
sion or change. If information is required that does not appear in this document, contact the
local distributor/agent or Honeywell Analytics.
WARNING
Identifies a hazardous or unsafe practice which could result in severe injury or death to per-
sonnel.

OELD User Manual (3018M5000_1-3) Revision 1, Issue 3
1.5 FCC Information
This device complies with part 15 of the FCC Rules. Operation is subject to the following two condi-
tions.
1) This device may not cause harmful interference, and
2) This device must accept any interference received, including interference that may cause undesir
ed operation.
This transmitter must not be co-located or operated in conjunction with any other antenna or transmit-
ter. This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environ-
ment. End users must follow the specific operating instructions for satisfying RF exposure compli-
ance.
NOTE: This equipment has been tested and found to comply with the limits for a Class A digital
device, pursuant to part 15 of the FCC Rules. These limits are designed to pro-vide reasonable pro-
tection against harmful interference when the equipment is operated in a commercial environment.
This equipment generates, uses, and can radiate radio frequency energy and, if not installed and
used in accordance with the instruction manual, may cause harmful interference to radio communi-
cations. Operation of this equipment in a residential area is likely to cause harmful interference in
which case the user will be required to correct the interference at his own expense.
CAUTION : Changes or modifications not expressly approved by the manufacturer responsible for
compliance could void the user’s authority to operate the equipment.
1.6 IC Information
This device complies with Industry Canada’s lisence-exempt RSSs. Operation is subject to the follow-
ing two conditions:
1) This device may not cause interference; and
2) This device must accept any interference, including interference that may cause undesired opera-
tion of the device
WARNING
OELD has been tested and meets applicable limits for radio frequency (RF) exposure. Ac-
cording to the RF Exposure report, minimum 20 cm separate distance is required.

OELD User Manual (3018M5000_1-3) Revision 1, Issue 3
2 Overview
2.1 Introduction
OELD is an ATEX certified Ex d junction box for use with sensors that feature a 4-20mA output. The
sensor is Searchpoint Optima Plus or Searchline Excel. It provides a local visual status indication, and
a Bluetooth low energy interface for remote monitoring and configuration using mobile device. OELD
is ATEX approved for use in either Zone 1 (gas) or Zone 21 (dust) hazardous areas as well as cULus
approved for use in Class I Division 1 or Class II Division 1.
OELD has five entries – either M25 or NPT3/4. It is supplied with three Ex d certified blanking plugs.
Transport plugs are fitted to the other two entries, which must be replaced with a sensor, suitable
cable glands or blanking plugs before use.
Internally, the box has a continuity plate with two earth connection points, and a 12-way terminal
block. The OELD features a three-color backlit (green, yellow and red), and customized 7-segment
liquid crystal display. In operation, the LCD backlit provides a status indication as follows:
•Green – Normal operation or Warning
•Yellow – Fault or Inhibit
•Red – Alarm (level is configurable)
•Blue – BLE pairing / connection
The OELD is configured using mobile device over Bluetooth Low Energy. The following parameters
can be configured:
•Threshold for local alarm indicator (red lights)
•4-20mA input level for local display
•Gas name and measurement units for local display
WARNING
Do not use the OELD LCD backlit status indication for safety-related purposes.

OELD User Manual (3018M5000_1-3) Revision 1, Issue 3

OELD User Manual (3018M5000_1-3) Revision 1, Issue 3
2.2 Optional Accessories
2.2.1 Pipe Mount Kit (1226A0358)
The Pipe Mount kit (1226A0358) allows the OELD
to be mounted to pipe from 2”-6” (50-150mm) in
diameter. The kit includes the pipe mount bracket,
two carriage bolts, nuts, and lock washers.
2.2.2 Ceiling Mount Bracket Kit (1226A0355)
The optional Ceiling Mount Bracket Kit
(1226A0355) allows the OELD Transmitter to be
mounted to the ceiling. The kit includes two stain-
less steel ceiling mount brackets, bolts, and nuts.
2.2.3 Sunshade (94000-C-1018)
An optional sunshade is available which covers
the OELD and can extend over either side to also
protect a Searchpoint Optima or Searchline Excel
The sunshade slots over the OELD mounting bolts so
no additional fixings are required. The sunshade is
stainless steel 316.
Use the sunshade to reduce the effects of direct solar
heating.

OELD User Manual (3018M5000_1-3) Revision 1, Issue 3
3 Installation
3.1 Siting
The placement of gas detectors should be determined following the advice of:
•experts having specialist knowledge of gas dispersion
•experts having knowledge of the process plant system and equipment involved
•safety personnel
•engineering personnel
The agreement reached on the location of detectors should be recorded.
Guidance on the positioning of gas detectors to provide the best detection coverage is contained in
IEC/EN 60079-29-2 and other national Codes of Practice. It is recommended that the installation de-
signer consults these Codes of Practice when determining where detectors are to be located.
3.2 Mechanical Installation
The OELD can be mounted in a number of ways using the integral mounting tabs. The OELD can be
attached to flat wall surfaces or to Unistrut®. With the optional Pipe Mount kit, the unit can be mount-
ed to pipe of diameter 2” to 6” (50 to 150mm). A ceiling mount bracket kit (1226A0358) is also availa-
ble.
3.2.1 Installation to a Flat Surface
OELD may be fixed directly to a suitable flat surface, using the integral mounting points (dimensions
shown below).
Note: When installing OELD ensure that the correct sensor orientation is considered. Refer to the
sensor manufacturer’s instructions.
Ensure that mounting bolts are fully tightened and suitable locking washers are used.

OELD User Manual (3018M5000_1-3) Revision 1, Issue 3
3.2.2 Optional pipe and celling mount installation
OELD may be fixed to a vertical pipe of 50 to 150 mm (2 to 6 inches) in diameter using the optional
Pipe Mounting Bracket. The pipe mounting bracket kit (1226A0358) consists of one bracket, two sets
of carriage bolts, nuts and lock washers.
The optional Ceiling Mount Bracket Kit (1226A0355) allows the OELD to be mounted to the ceiling. Kit
includes: (2) Stainless Steel Ceiling Mount Brackets, bolts and nuts.
3.2.3 Using Excel Mounting Plate
OELD may be fixed to the Excel mounting plate (2104D0237) which is available to be ordered with
Excel. Two of M10 tapped holes, ‘K’, is for OELD. Refer Excel technical manual for other details. The
mounting plate fixings are not supplied.

OELD User Manual (3018M5000_1-3) Revision 1, Issue 3
3.3 Electrical Installation
1. Remove the lid.
2. Lift the handle and take out the internal display module.
3. Fit a suitable approved Ex d cable gland to the required cable entry for the field cable.
4. Fit a sensor (the Optima Plus or Excel) to a suitable entry. (Refer to sensor manual for specific
information). Use sealing washers where necessary to maintain the ingress protection rating
(IP66/67). Use one of the supplied locking rings to connect to the earth continuity plate.
5. Fit approved Ex d blanking plugs to all unused cable entries. Use sealing washers where neces-
sary to maintain the ingress protection rating (IP66/67).
Caution: Ensure that all red transport plugs have been replaced with the correct blanking
plugs, sensor or cable glands.
6. Make electrical connections (see Chapter 4).
7. Carefully replace the display module and fully tighten the lid
Caution: Take care to avoid trapping cables when replacing the display module.

OELD User Manual (3018M5000_1-3) Revision 1, Issue 3
4 Electrical Connections
Terminal Block 1
Number Marking Color Description
1
V+
Red
V+ Field Power
2
V-
Black
V- Field Power
3
mA
White
mA Signal to Field Wiring
4
V+
Red
Reserved for Excel Cross-duct Heater
5
V-
Black
Reserved for Excel Cross-duct Heater
Terminal Block 2
Number
Marking
Color
Description
1
V+
Red
V+ Sensor Power
2
V-
Black
V- Sensor Power
3
mA
White
mA Signal to Sensor
4
485A
Blue
RS485+ to Sensor
5 485B Orange RS485- to Sensor
6 485A Blue Reserved for SHC-1
7 485B Orange Reserved for SHC-1
Note: OELD is reverse polarity protected.
Spare conductors must be terminated in a spare terminal. Wiring must be in accordance with local,
national and/or company regulations. Bare conductors must be avoided.
Refer to individual sensor manuals for sensor wiring details. Specific wiring diagrams for some com-
monly used sensors are provided in the Appendix.
The mA loop voltage is Max 32 VDC and current is Max 22 mA.

OELD User Manual (3018M5000_1-3) Revision 1, Issue 3
4.1 Power Supply
OELD requires an isolated voltage supply of 18 - 32 Vdc (nominal 24 Vdc), which is suitably approved
for the region (for example, UL approved). Power consumption is 2 W maximum.
Refer to individual sensor manuals for sensor specific limits and power consumption.
Ensure that the minimum required supply voltage is present at the sensor, taking into account the
voltage drop due to cable resistance.
Note: Make allowance for the insertion loss resistance.
The maximum loop resistance in the field cable is calculated as follows:
 =
    

4.1.1 Example Cable Length Calculation
Example – OELD with Searchpoint Optima Plus:
Searchpoint Optima Plus requires a voltage supply of 18 – 32 Vdc. Its power consumption is 5 W.
Therefore total power consumption including OELD is 7 W maximum.
The controller is supplying a nominal 24 Vdc (V controller) and the detector minimum allowable volt-
age is 18 Vdc (V detector min), therefore the maximum allowable voltage drop between the controller
and detector is 6 Vdc; this means a voltage drop of 3 V in each core (+ve core and -ve core).
Power consumption of the detector is 7 W. The current required to drive the detector at the minimum
voltage is (I = P / V), 7 / 18 = 388 mA (I detector).
So, the maximum field cable loop resistance (R loop) = 6 / 0.388 = 15.4 Ω, or 7.7 Ω per core.
The following tables show the maximum cable distances between the controller and OELD with
Searchpoint Optima Plus for different cable options, assuming a voltage drop of 3 V in each core. The
tables are examples only and actual cable parameters and source power supply voltage for the appli-
cation should be used to calculate the maximum cable distance allowed at the installation site.
Note: Sufficient operational margins should be allowed
4.2 Cabling Recommendation
The cable used must be appropriate for the hazardous area classification and meet local, national
and/or company regulations. The use of industrial grade, screened field cable is recommended.

OELD User Manual (3018M5000_1-3) Revision 1, Issue 3
For example, three-core copper cable with screen (minimum 90% coverage) and suitable mechanical
protection (e.g. steel wire armor) to suit M20 gland entry.
The conductor size for the terminals is 0.2 – 2.5 mm2(24 - 12 AWG). The OELD terminals will accept
only copper wire sizes in the range 0.2 – 2.5 mm2(solid core), 0.2 – 2.5 mm2(stranded core), or 24 –
12 AWG and temperature rating of conductor is greater than 80°C. The terminals should be torqued
to 5.5kgf.cm (5 lb-in).
Ensure the cable gland is installed correctly and fully tightened. All unused cable/conduit entries must
be sealed with a suitable certified blanking plug.
4.3 Earth Regimes
Caution: Any earthing regime employed must avoid earth loops.
The following information is provided to assist with proper earthing of OELD:
•OELD has a continuity plate which is in contact with the internal earth points provided (see Electrical
Connections). This is to facilitate connection of the sensor to protective earth.
•Locking rings are supplied which can be used to connect a sensor body or cable gland to the conti-
nuity plate where necessary.
•Field cable screens should be connected to instrument earth at the control room. The other end of
the field cable screen may be terminated in a spare terminal of OELD. It should not be connected to
the continuity plate.
4.4 Fix the 4-20mA Input
After electrical commission it is recommended to calibrate current input to OELD by using mobile
device.
The electrical adjustment procedure is as follows.
1. Short or open the current input ports at the OELD
2. Carry out mA input calibration with mobile device (Configure->Local display->Calibrate mA
input)
3. Re-wire the current input (mA)
For more information please refer to 7 OELD Mobile App

OELD User Manual (3018M5000_1-3) Revision 1, Issue 3
5 Configuration
5.1 General
OELD has several configurable parameters, which are set using mobile device only. These are the
threshold for local alarm indication, mA input level settings, RS485 communication settings, confi-
dence signal of the green light and sensor settings such as full scale range, measurement unit and
gas name.
1. Threshold for local alarm indication
The gas reading at which OELD indicates an alarm (flashing red lights) can be set between 10 and 65
%FSD. The default setting is 20 %FSD.
Note: This setting is local to OELD and applies only to the red lights in the OELD backlit. Changing
the level will have no effect on alarm levels configured in the sensor, or in the control room.
2. mA input level settings
The sensors transmit specific mA output to indicate the sensor status. The mA input to OELD can be
determined to specific sensor status according to the configured mA input level settings. The mA input
settings are sensor status (warning, fault or inhibit) and message on OELD local display. The default
settings are as below.
Sensor Status
mA input settings
Optima Plus Non-HART
Optima Plus HART
Searchline Excel
Fault
0-1mA
x
0mA
Inhibit
2mA
2mA
2mA
Warning
3mA
3mA
x
Beam Block
x
x
2.5mA
Low Signal
x
x
3mA
Gas Reading
4-20mA
4-20mA
4-20mA
Over-Range
21mA +
21mA +
21mA +
3. Confidence signal of the green light
The green lights indicating normal operation can be set to confidence signal to indicate OELD is alive
by flashing green lights. The flashing interval is 10 seconds. If set the green backlit will flash every 10
seconds in normal condition
4. Sensor settings
The sensor settings are full scale range, measurement unit, display resolution and gas name. The
sensor settings are used to convert the 4-20mA input to gas concentration and to show it on OELD
LCD.
WARNING
Do not use the OELD LCD backlit status indication for safety-related purposes.

OELD User Manual (3018M5000_1-3) Revision 1, Issue 3
5.2 Configuration Process
Note: Configuration is done by using mobile device only. There is no local interface to configure
OELD.
To configure OELD, it should be connected to mobile device over Bluetooth Low Energy first. The
blue backlit of OELD will flash when a mobile device pairs with OELD so that an operator can easily
find out and identify the target OELD. When OELD is connected to mobile device successfully the
blue backlight will stay on in normal condition. If the sensor is in abnormal condition, appropriate
backlit of OELD will flash according to sensor status instead of indicating BLE connection.
1. Tab the OELD mobile app icon on the mobile device to execute the app
2. Log in the mobile app by entering appropriate user ID and password
3. Scan the BLE devices nearby
4. Select the target OELD in the scanned BLE device list
5. Find out and identify the OELD flashing blue backlit
6. If the identified OELD is correct one, confirm the connection
7. Mobile app will establish the connection with OELD then move to main status screen
For detailed connection procedure refer to section 6.2 BLE communication.
If OELD is connected to mobile device, a user can configure OELD via configure menu on the mobile
application. For more details on operation of mobile application, refer to 7 OELD Mobile App
After successful configuration, terminate the BLE connection from the OELD so that other mobile
device can communicate with the OELD.
Note: After configuration it is recommended to read back and check the configuration from OELD to
make sure that the intended configuration changes are applied correctly.
Caution: Only one BLE connection is allowed. Terminate the BLE connection when a configu-
ration activity is done

OELD User Manual (3018M5000_1-3) Revision 1, Issue 3
6. Operation
6.1 LCD
6.1.1 Start-up
OELD’s start-up sequence takes approximately 60 seconds depending on the sensor outputs. The
first step of the start-up sequence is LCD and backlit test. During LCD test each segment of LCD will
be on one by one while LCD backlit will flash in various colors. And OELD shows software version
and various configuration information as below. During start-up sequence except LCD test, the green
light will be on. After the start-up period the lights will indicate the sensor output status.
Note: Depending on the duration of the sensor start up routine, the sensor may still be initialising.
Therefore OELD may indicate Fault or Inhibit for a short time before indicating Normal status.

OELD User Manual (3018M5000_1-3) Revision 1, Issue 3
6.1.2 Normal Operation
During normal operation, the LCD backlit provides an indication of the sensor status based on the
sensor 4-20 mA output as follows:
Sensor Output
OELD Backlit
Typical Status
Color
Flashing
Less than 1.5mA
Yellow
Yes
Fault
1.5 to less than 2.5mA
Yellow
No
Inhibit
2.5 to less than 3.5mA
G
Y
G
Alternating Yellow
Warning
3.5mA to less than Alarm Threshold*
Green
No
Normal
Greater than or equal to Alarm Threshold*
Red
Yes
Hazardous Gas Concentration
3.5mA to less than Alarm Threshold**
Blue
No
Normal
* Alarm threshold is configurable between 10 and 65 %FSD (5.6 mA to 14.4 mA)
**When sensor output is normal and BLE connection is established, the OELD backlit will be Blue
Note: The tolerance on the switching thresholds is ±0.3 mA as default. A user can change the switch-
ing threshold by changing the mA input range.
Note: The visual output of OELD is dependent on the sensor 4-20 mA output and OELD unit status.
Use the Bluetooth Low Energy communications to the OELD (where supported) to gain further diag-
nostic information for the connected sensor and OELD.
6.1.3 Display Screen
The OELD display features an LCD with numeric/bar-graph gas concentration data, alpha-numeric
warning and status indication. The LCD also has a backlit with hi-intensity multi-color LED to show
NORMAL, ALARM and FAULT status.
During normal operation the instrument LCD shows a steady GREEN backlight. In case of Gas Alarm
or Fault it displays a flashing RED / YELLOW backlight. The screen is visible through the window of
the OELD top cover. The display shows the gas concentration (both graphically and numerically), full
scale range, measurement units, alarm/ fault status and etc.
Note: The OELD display may become sluggish in sub-zero temperatures and possibly unclear at
temperatures below -40 °C. The display is not damaged and recovers when the temperature increas-
es.
Note: The refresh rate of OELD display will change up to 6 seconds at lower temperature so that LCD
readability at lower temperature can be maintained

OELD User Manual (3018M5000_1-3) Revision 1, Issue 3
Full scale
Bar Graph
Gas name
Gas Reading
Test Pass Icon Warning/Fault Icon
Inhibit Icon
Alarm Icon
Measurement
Units
BLE Icon
6.2 BLE Communication (Optional)
OELD features an optional BLE interface that allows non-intrusive connection of mobile device to a
sensor that supports RS485 communication. The OELD bridges message transactions between mo-
bile device and sensor by converting the BLE packet to RS485 message and repeating it onto RS485
interface, and vice versa. OELD does not interpret any RS485 messages from mobile device and
sensor.
The BLE interface is accessed by mobile device that supports Bluetooth Low Energy.
Refer to the OELD Mobile App manual for BLE communication information.
Note: The BLE (Bluetooth Low Energy) is different from Bluetooth Classic. Make sure the mobile de-
vice has an operating system that supports BLE.
Note: Bluetooth feature should be enabled in the mobile device to allow it to scan BLE devices near-
by.
Refer to the Mobile device user’s manual for details of how to use the Bluetooth on the mobile device.
Note: OELD is compatible with the BLE Point-to-Point mode of operation only. If OELD is connected
with one mobile device, it won’t be scanned by other mobile device
If there is no valid BLE communication for 10 minutes, OELD will terminate BLE connection automati-
cally
Note: BLE communication range will vary depending on the field situation and installation location of
OELD. It is recommended to use BLE interface in the line of sight
6.3 Alternative communications (SHC-1)
If the sensor features an RS485 interface (i.e. Honeywell Analytics optical products) this can be ac-
cessed using the Honeywell Analytics SHC1 Handheld Interrogator and the SHC Protection Device,
by direct connection to the terminals inside the OELD.