ULTIMA® OPIR-5
Open Path Gas Detector
EVERY LIFE HAS A PURPOSE…
Contents
1.
2.
3.
4.
5.
6.
7.
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9.
10.
11.
Product Overview
False Alarm Immunity
Detector Placement
Installation
Split Concentration Range
Maintenance
Fault Conditions
HART
AMS Device Manager
Applications
Summary
ULTIMA OPIR-5 Detector
 Description
– Open path infrared hydrocarbon gas
monitoring system
 Expected Customer Benefits
– Low power consumption
– Dual analog outputs, ppm•M and LEL•M
– Light and compact design
– Resilient to solar radiation and fog
– Long detection range
– Available with HART and Modbus
– Stainless steel construction
– Integral display
Performance Specifications
Specifications
Ultima OPIR-5
Response time (T90, s)
<5
Repeatability
<  5%
Linearity
  5% FS or  10%
Path length, max (m)
150
Operating temperature range (C)
-55 to +65
Solar blind
All conditions
Fog immunity
90% blockage,
 10% acc.
Combined weight, receiver and source (kg)
11.13 (SS only)
Supply power, nominal (W)
23
Bidirectional communication
HART, Modbus
Event logging and AMS Device Manager
Available
Solar Radiation Rejection
 The ULTIMA OPIR-5 has
superior immunity to solar
radiation and other external
IR radiation sources.
Performance Certifications
 The ULTIMA OPIR-5 is the world’s first and only
open path detector to meet agency performance
requirements on both LEL•m and ppm•m scales
Detector Placement
 Open path detectors should be installed based on
several considerations:
– Hazard conditions within the installation area covered
– Ventilation rates, direction, and presence of recirculation and
dead zones
– Sensitivity to low (geometric) sunlight, fog, and reflections
– Powerful sources of electromagnetic emissions like high
powered electrical towers
– Structures that may interfere with line of sight
* Health and Safety Executive, Offshore Division,” Fire and Explosion Strategy, Issue 1,” 2004.
Installation
 When installing an ULTIMA OPIR-5 detector, it is useful
to consider the following:
–
–
–
–
–
–
–
–
Vibration can create issues
Solid foundation improves alignment integrity
The longer the line of sight path, the more solid the foundation required
Maintain a 6” to 12” radius around the line of site beam to avoid reflective
interference from piping and supports
For outdoor installations, consider maximum snow levels
Good immunity to fog, steam, and rain but immunity degrades over longer
distances
Avoid pedestrian traffic or overhead cranes
Keep beam low and down wind for heavy gases like propane and high for light
gases like methane
Wiring
2
Ultima OPIR-5 Receiver
1
16
COM
3
15
RST
4
14
COM
5
13
0–
20
mA P
6
12
COM
7
11
0–
20
mA L
+24V
8
10
COM
9
MOD1-
Modbus 1-
Modbus
2-
MOD2
-
17
MOD1
+
Modbus1+
Modbus
2+
MOD2
+
18
A2
Alarm
NO/NC
Fault NO
FLT1
AC
Alarm C
Fault C
FLTC
A1
Alarm
NC/NO
Fault NC
FLT2
W2 L
Warn
NO/NC
Warn
NC/NO
W2 P
WC L
Warn C
Warn C
WC P
W1 L
Warn
NC/NO
Warn
NC/NO
W1 P
19
20
21
22
23
24
Split Concentration Range
 With the split range function, users can monitor the
entire span of gas concentration with a single analog
signal
– Reduces wiring and commissioning costs
5 LEL•m
Methane Gas Concentration
(LEL•m)
Methane Gas Concentration
(ppm-m)
5,000 ppm-m (0.1 LEL•m)
0
4
12
AO (mA)
20
Alignment
 Simple alignment process
– Arm or base mounts available
 Display
– Menus activated by magnet
– Enables easy alignment, setup
& diagnostics
Maintenance
 As with other combustible sensors, the ULTIMA OPIR-5
should be included in the plant maintenance schedule*
– Gas check frequency depends on operating conditions (ex.
dusty, corrosive, or damp environment)
– Before repair or maintenance, the gas detector should be
removed to a safe place outside the area being protected
 If the hazard is still potentially present, it will be necessary to
use a replacement gas detector in the area until the original
detector is reinstated
* BS EN 50073:1999 “Guide for the selection, installation, use and maintenance of apparatus for the detection and measurement of
combustible gases or oxygen.”
Diagnostics
 The ULTIMA OPIR-5 has
self-diagnostics that inform
users when certain types of
device failures have
occurred
Fault
Code
Description
F0
Excessive negative drift or high IR
F1
Partial beam block or dirty lens
F2
Alignment
F3
Beam block
F5
Setup menu not exited
F6
Low supply voltage
F7
Heater error
F8
Failed zeroing
F9
Gas left (timeout)
F10
Reset short
F11
Unit overheating
tF7
Source internal error
HART
 The ULTIMA OPIR-5 is available with HART for better
efficiency with remote communication
– Only the primary scale, LEL•m or split range, connects through
HART
 Benefits of the HART-equipped ULTIMA OPIR-5:
– Better diagnostics
– Improved management of maintenance history and event logging
– Flexible and accurate digital transmission
– Effective cost control of devices in the field
– Installation savings due to fewer wires
HART –Analog Signal for Faults
Because HART requires a minimum current for
operation, the ULTIMA OPIR-5’s fault conditions use 3.5
mA as minimum analog output
Function
Current Level (mA)
Analog Output
(Standard)
Modbus
HART
(Default)
HART-modified
Analog Output
Fault
0
0
3.5
1.25
Test Gas
1.5
1.5
3.5
1.5
Setup Mode
1.5
1.5
3.5
1.5
Beam Block
2.0
2.0
3.5
2.0
Startup
0
0
3.5
1.25
Zero Reading
4.04
4.04
4.04
4.04
Gas Concentration
4 – 20
4 – 20
4 – 20
4 – 20
Over-range
21.7
21.7
21.7
21.7
On HART-equipped unit, user must select the HART-modified AO in order use AO values
below 3.5 mA
AMS Device Manager
 Asset management and
process improvement
– Check compliance to
calibration schedule
– Coordinate calibrations so
as to reduce labor cost
– Aggregate calibration to a
control room
– Track gas level remotely
– Read fault conditions from
control room; before
sending technician to the
field
Ultima OPIR-5 Summary
 Ultima OPIR-5 Open Path IR Detector
– Detects ppm•Meter & LEL•Meter
– Path Length up to 150 M
– Wide Temperature range
– Global Approvals
– Integral Display - Easy alignment,
diagnostics and maintenance