Honeywell OELD - Page 2

OELD Smart Junction Box
Quick Start Guide
WARNING
Read and understand the OELD Operating Instructions before
installing, operating or servicing this product. These are
available for download from the Honeywell Analytics website.
Visit www.honeywellanalytics.com
1 Safety Warnings and Information
WARNING
• Installation must be in accordance with the recognized
standards of the appropriate authority in the countr y concerned.
For Europe see EN 6007914 and EN 60079292.
• Do not open the enclosure when energized or when an
explosive atmosphere may be present.
• Operators should be fully aware of the action to be taken if
the gas concentration exceeds the alarm level.
• Do not modify or alter the construction of the product as
essential safety and certification requirements may be
invalidated.
• Access to the interior of the product, when carrying out any
work, must be conducted only by trained personnel.
• Measuring function not approved under ATEX. Do not rely
on the OELD display backlight status indication for safety-
related purposes.
• In order to maintain electrical safety, the unit must not be
operated in atmospheres of more than 21 % vol. oxygen.
2 Installation
Note
When installing the OELD, consider the correct sensor orientation.
Always refer to the sensor manufacturer’s instructions.
4.5"
2.1"
0.6"
1.8"
3.2"
6.1"
0.9"
1.2"
1.8"
133.8 mm
52.2 mm
15.9 mm
44.9 m m
80.7 mm
158.78m m
24.0mm
31.8mm
44.9 m m
7.8 "
6.0"
5.6"
1.7"
0.6"
196.9 mm
152.4 mm
124.2 m m
42.4 mm
14.4 m m
The OELD may be fixed directly to a suitable flat surface, using
the integral mounting points (dimensions shown).
Ensure that mounting bolts are fully tightened and that suitable
locking washers are used.
Other mounting options are available. Refer to the OELD
Operating Instructions for full details.
The optional pipe mount, ceiling bracket and sunshade
accessories are not included as part of the assessment to
EN60079291.
OELD carries a rating to IP66 / Type 4X (in accordance with
NEMA 250). Ensure that the environment is suitable for the
OELD.
3 Electrical Connections
Terminal Block 1 (TB1)
Number Marking Colour Description
1 +V Red Input power +ve
2 V Black Input power 0V
3 mA White mA Signal to Field Wiring
4 +V Red Auxiliary power e.g. Excel cross
duct heater
5 V Black Auxiliary power e.g. Excel cross
duct heater
Terminal Block 2 (TB2)
Number Marking Colour Description
1 +V Red Sensor power +ve
2 V Black Sensor power -ve
3 mA White mA Signal to gas detector
4 485A Blue RS485+ to Optima or Excel
5 485B Orange RS485 to Optima or Excel
6 485A Blue Reserved for SHC1 connection
7 485B Orange Reserved for SHC1 connection
Power supply | 18 to 32 Vdc (24 Vdc nominal), <2 W
4 Ground Connection
CAUTION
• Any earthing regime employed must avoid earth loops
The following information is provided to assist with proper
earthing of the OELD:
• The OELD has two internal earth points provided (see
Electrical Connections). This is to facilitate connection of the
sensor to protective earth.
• Field cable screens should be connected to instrument earth
at the control room. The other end of the field cable screen
should be suitably terminated or isolated. It should not be
connected to internal earth point.
5 Display Elements
Full scale
Bar Graph
Gas name
Gas Reading
Test Pass Icon Warning/Fault Icon
Inhibit Icon
Alarm Icon
Measurement
Units
BLE Icon
Full S cale
Bar Graph
Gas name
Gas Reading
Bluetooth
Test Pass I con Warning/Fault Icon
Measurement
Units
Alarm Icon
Inhibit Icon
Visual Indications
Default Detection
Ranges
OELD Backlight
Typical Status
Color Flashing
Less than 1.5mA,
>24.0 mA
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, OELD connected
to a mobile device
* Alarm threshold is configurable between 5 and 65 % FSD (4.8 mA
to 14.4 mA)
Note
The current detection ranges are configurable by the user using
the OELD App.
Note
The visual indicator of the OELD is derived from the 420 mA
output of the sensor and/or status of the OELD unit. Use a suitable
mobile device and OELD App to connect to the OELD using
Bluetooth® to access further diagnostic information. When used
in conjunction with a Searchpoint Optima Plus or Searchline
Excel, diagnostic and maintenance functions of the sensor can be
accessed also.
6 Configuring the OELD
Configuration
Parameters
Default Setting Other Options
Device type
Searchpoint
Optima Plus
Searchline Excel / Generic 4
to 20mA transmitter
Alarm Threshold* 20%
Any value between 5 and 65
% FSD
Gas name on
display
‘Flm’
4 of User-configurable alpha-
numeric characters
Display resolution 1 Decimal places (e.g. 0.1)
Full Scale Range for
20 mA
100
Depends on the display
resolution
Measurement units %LEL
%Vol, mg/m3, g/m3, ppm,
kppm, ppm·m, LEL·m, mA, A,
dB, dBA
Inhibit Current 1.5 to 2.5 mA 0 to 3 mA
Warning Current 2.5 to 3.5 mA 0 to 6 mA
Beam block current 2.3 to 2.7 mA 0 to 6 mA
Over-range Current 20.0 to 24.0 mA 20 to 24.0 mA
Normal (Green)
LED control
On Off
* Alarm threshold and trigger relates to the local indication of the
backlight only. These settings do not affect the operation of the
connected sensor or any other systems connected to the OELD.
** Beam block current is only available when the device type is
configured to Searchline Excel.
Note
The OELD has been assessed to ISA 60079291 using the %LEL
units of measurement only. Other units of measurement are not
covered by the approval to ISA 60079291.
7 OELD Mobile App
The OELD provides a wireless interface allowing maintenance
via a Bluetooth® connection. The OELD App can be
downloaded from Google Play Store. An Android smart device
(version 4.3 or above) is required. Contact Honeywell for
details of smart devices suitable for use in the hazardous area.
To use the OELD App:
• Create a User Account linked to an e-mail account.
• Scan the QR code or enter the Device Activation Code
supplied with the OELD and repeat for all devices that
need to be connected to Tap on the Detector button to
scan for nearby devices
• Select and confirm the device to connect to.
The OELD Mobile App supports specific functions of
Searchpoint Optima Plus and Searchline Excel. When one
of these detector types has been connected, full access to
menus related to these specific functions will be possible.
Please refer to the OELD Mobile App manual for full details.
8 Certification and Approval
OELD Specification
Core Approvals
EN 50270:2015 (EMC)
IEC/EN/UL/CSA 610101 (Electrical Safety)
Safety Approvals
ATEX [DEMKO 16 ATEX 1693X]
II 2 GD
Ex db IIC T6 (flameproof Ex d version)
Ex tb IIIC T85 °C (flameproof Ex d version)
Tamb 40 to +65 °C
cULus [E484838]
Class I, Division 1, Groups A, B, C and D
Class II, Division 1, Groups F and G
Class III, Division 1
Tamb 55 to +65 °C, Temp Code T6, IP66, Type 4X
Class I, Zone 1, AEx d IIC T6
Class I, Zone 21, AEx tb IIIC T6
IECEx [IECEx UL 16 0066X]
Ex db IIC T6 (flameproof Ex d version)
Ex tb IIIC T85 °C (flameproof Ex d version)
Tamb 40 to +65 °C
CU TREx (Russian Customs Union), Tamb 60
to +65 °C*
CCCF*
Inmetro*
NEPSI+*
ISA 60079291
EN60079291 approved accessory
Maritime
Approvals*
Type approved to DNV, BV+, Lloyds+, ABS
EN 60945 (EMC)
IEC 60092504
Other Approvals
Bluethooth® certified, RED, FCC+, country-specific
wireless approvals
Bluetooth®
communication
security
Certificate-based mutual authentication.
Encryption to AES128.
+ Flameproof versions only
* Contact Honeywell for availability Needs to go on seperate line.