Reliable, field-proven photometers
for simple and fast process control,
quality assurance, environmental
compliance and safety
measurements.
Decades of industrial heritage
PIR3502, PUV3402 and PUV3402-LED Multiwave
Process Photometers are designed based on several
decades of industrial analysis heritage. They provide
continuous analytical measurements, enabling close-
loop control and fast reactions to process upsets.
ABB Process Photometers are particularly adapted
for chemical plants to handle various tasks such as
real-time process control, quality assurance, asset
protection, safety monitoring and environmental
compliance.
Multiwave analyzers are highly configurable to fit
process needs, working with liquid or gas, simple or
complex streams, from ultra-violet (UV) to infrared
(IR) spectral range depending on application needs.
They provide reliable and stable measurements
even in harsh process conditions such as wet, hot,
pressurized or acidic streams, as well as in explosive
and corrosive environments.
Features and benefits
Designed for industrial process control:
• Reliable and stable liquid/vapor analyzer
• Provides fast and continuous measurements
• Highly sensitive and precise: repeatability better
than 1% of full-scale range
• Streamlined connectivity for control loop
implementation
Highly configurable to fit process requirements:
• Spectral range adapted to stream requirements
• Compatible with harsh streams
• Up to 200°C streams
• Up to 500 PSI (34 bar) pressurized streams
• Can manage wet, hot and acidic streams
• Certified for explosive environment applications
Low cost of ownership:
• No consumables or reagents
• Robust with minimal maintenance needs
• Easy to install close to process lines
• Provides early maintenance warnings
• Minimal maintenance skills and spare
inventory required
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ABB MEASUREMENT & ANALYTICS | DATASHEET
Multiwave™ Process Photometers
PIR3502, PUV3402, PUV3402-LED
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Multiwave Process
Photometer PIR3502
Multiwave photometer models
When irradiated, chemical substances have unique
spectral absorbance signatures enabling the detection
and quantification of one or several components.
ABB Multiwave Process Photometers can be used in
different spectral ranges depending on application
needs. For each application, the optimization of the
photometer involves selecting the spectral region
and up to 8 optical filters of interest, the optical path
length and type of sampling cell.
• PIR3502 model is intended for mid-IR (fingerprint
region) and near-IR measurements
• PUV3402 model is designed for applications in UV
and/or visible spectral regions
• PUV3402-LED model uses up to 4 light-emitting
diodes (LEDs) with fixed wavelengths instead of
filters mounted on a filter wheel – several LED
assemblies are available to cover various
applications in the UV and visible spectral regions
Multiwave spectal configuration options
Versatility
The underlying technology of Multiwave has been
field-proven and continuously improved for several
decades to match various industry needs in chemical
process control.
Most common industrial application fields are:
• EDC-VCM (ethylene dichloride - vinyl chloride
monomer)
• EO-EG (ethylene oxide – ethylene glycol)
• Acetic acid
• Phosgene
• Maleic anhydride
• Color measurements
• Isocyanide
• Olefins
• Sulfur recovery unit
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01 EDC-VCM
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02 EO-EG
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03 Acetic acid
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04 Phosgene
Model Source Spectral range
PIR3502 Platinum lamp 2.5 µm – 14.5 um
Tungsten lamp 0.80 µm – 2.8 um
PUV3402 Deuterium lamp 200 nm – 800 nm
PUV3402-LED Kit of LEDs 4 LEDs
Application specific
280 nm - 760 nm
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01
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03
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02
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04
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Typical analytical performance
Note: exact performances are application dependent and specified
at quotation stage.
Repeatability
• Better than ± 1% of full scale
Noise
• Less than ± 1% of full scale at 0.02 absorption units
• Less than ± 0.5% of full scale at 0.20 absorption units
Nonlinearity
• Less than ± 2% of full scale
Zero sample drift (*)
• Less than ± 0.5% of full scale per day for IR
• Less than ± 1.0% of full scale per/day for UV
Response time
• Programmable between 5s (default) to 17 min
Ambient electronic stability
• Analyzer response better than ± 1% of full scale for 18°F (10°C)
variation in 4 hours
*Zero sample drift over 8 hrs is measured at the factory. The zero sample is the simplest
mixture representative of the measurement matrix in the absence of the target specie(s).
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Operating specifications
Wavelength range
• UV: 200-400 nm
• Visible: 400-800 nm
• Near-IR: 800-2800 nm
• Fundamental IR: 2.5-14.5 µm
Maximum cell heating
• 302°F (150°C) with electrical heating
• Up to 392°F (200°C) with steam heat
Electrical cell heating power consumption
• 450 watts maximum (temperature is application dependent)
Sample flow rate
• Vapor: typical 20–500 cc/min
• Liquid: 5-120 cc/min
Sample pressure
• 5–500 PSIG (0.3-34 bar)
Instrument air supply for enclosure purge (safety)
• Pressure 40-80 psi (3-6 bars)
• Flow rate 1.1 CFM (30L/min)
Optical purge (typically nitrogen)
• Pressure at 15–30 psi (1-2 bar)
• Flow rate 15 cc/min
Environmental
• Instrument must be protected from direct sunlight and rain
• Ambient temperature range: 32°F to 113°F (0°C to 45°C)
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Power
Line regulation
• +/- 10% fluctuation will cause an output variation <0.05%
of full scale
AC voltage input
• 100/115/220/230 VAC, 45-66 Hz
Maximum power consumption
• 150W without electrical heating
• 600W with electrical heating, temperature-dependent
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Dimensions
Weight
• Approximately 80 lbs (36.3 kg)
Height
• 13.5 inches (342.9 mm)
Depth
• 10.5 inches (266.7 mm)
Width
• 10 inches (254 mm) per module
Overall length (based on cell path length)
• Minimum 26.8 inches (681.4 mm) for 0.5 to 16 mm cell
• Maximum 65.5 inches (1665 mm) for 1 meter cell
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Specifications
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We reserve the right to make technical changes
or modify the contents of this document
without prior notice. With regard to purchase
orders, the agreed particulars shall prevail.
ABB does not accept any responsibility
whatsoever for potential errors or possible
lack of information in this document.
We reserve all rights in this document and in
the subject matter and illustrations contained
therein. Any reproduction, disclosure to third
parties or utilization of its contents – in whole
or in parts – is forbidden without prior written
consent of ABB.
Copyright© 2023 ABB. All rights reserved
abb.com/measurement
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ABB Inc.
Measurement & Analytics
3400, rue Pierre-Ardouin, Québec, Québec
G1P 0B2 Canada
1 800 858-3847 (North America)
Tel.: +1 418-877-2944 (other countries)
Fax: +1 418-877-2834
Email: ftir@ca.abb.com
DS/Multiwave™ process photometers-EN | Letter 06.2023
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Physical connections
Sample inlet/outlet
Metallic cell Teflon cell
Size 1/4˝ (6 mm) 1/8˝ (3 mm)
Brand Swagelok or Gyrolok Upchurch Scientific
Material 316 SS, Hastelloy “C”, Monel Tefzel
Purge inlet and outlet
• Metal cell size: 1/4” NPT-F
• Material: 316SS
Power
• Size: 18 AWG, 3/4” conduit hub
• Type: 3 conductors each
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Output signals
Analog outputs
• 4x outputs 4-20 mA isolated into 600 ohms maximum
• Contact closures:
– 5x isolated Reed relays
– Rated for 5W at 30VDC max or 0.25A at 24VDC max
– Contact closures are available as Normally Open (NO) or
Normally Closed (NC)
• Digital inputs:
– 24x, 5 are preconfigured
• Digital outputs:
– 4x, 110 VDC, 25W
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Certifications
cCSAus
• Class I, Division 1, Groups B, C and D T4...T2 – with X-purge
• Class I, Division 2, Groups B, C and D T3...T2 – with Z-purge
ATEX
• Zone 1, II 2 G; Ex db ib [ib] pxb IIB+H2 T4...T2 – with X-purge
• Zone 2, Ex II 3 G; Ex pzc IIB+H2 T4...T2 Gc – with Z-purge
(self-certified)
IECEx
• Zone 1, II 2 G; Ex db ib [ib] pxb IIB+H2 T4...T2 – with X-purge
CE
• Zone 1, CE 0344 Ex II 2 G; Ex db [ib] ib pxb IIB+H2 T4...T2 Gb
• Zone 2, CE Ex II 3 G ; Ex pzc IIB+H2 T4…T2 Gc
Temperature code
• T2 – with electrical cell heating with thermal fuse less
than 572˚F (300˚C)
• T3 – with electrical cell heating with thermal fuse less
than 392˚F (200˚C)
• T4 – no electrical cell heating option
For further information, please consult ABB website
abb.com/analytical.
To obtain information on achievable performances and a detailed
quote, send a stream composition and its variability, along with
the measurement range required to qc_rfq@ca.abb.com.