Vaisala HPP272 User manual

M211972EN-B
User Guide
Vaisala PEROXCAPâHydrogen Peroxide,
Humidity and Temperature Probe
HPP272

PUBLISHED BY
Vaisala Oyj
Street address: Vanha Nurmijärventie 21, FI-01670 Vantaa, Finland
Mailing address: P.O. Box 26, FI-00421 Helsinki, Finland
Phone: [phone]
Visit our Internet pages at www.vaisala.com.
© Vaisala 2017
No part of this manual may be
reproduced, published or publicly
displayed in any form or by any
means, electronic or mechanical
(including photocopying), nor
may its contents be modified,
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disclosed to a third party without
prior written permission of the
copyright holder. Translated
manuals and translated portions
of multilingual documents are
based on the original English
versions. In ambiguous cases, the
English versions are applicable,
not the translations.
The contents of this manual are
subject to change without prior
notice.
Local rules and regulations may
vary and they shall take
precedence over the information
contained in this manual. Vaisala
makes no representations on this
manual’s compliance with the
local rules and regulations
applicable at any given time, and
hereby disclaims any and all
responsibilities related thereto.
This manual does not create any
legally binding obligations for
Vaisala towards customers or end
users. All legally binding
obligations and agreements are
included exclusively in the
applicable supply contract or the
General Conditions of Sale and
General Conditions of Service of
Vaisala.
This product contains software
developed by Vaisala or third
parties. Use of the software is
governed by license terms and
conditions included in the
applicable supply contract or, in
the absence of separate license
terms and conditions, by the
General License Conditions of
Vaisala Group.

Table of Contents
1. About This Document................................................................................... 5
1.1 Version Information.......................................................................................... 5
1.2 Related Manuals................................................................................................ 5
1.3 Documentation Conventions...........................................................................5
1.4 Trademarks........................................................................................................ 6
1.5 Patent Notice.....................................................................................................6
2. Product Overview........................................................................................... 7
2.1 Introduction to HPP272....................................................................................7
2.2 Basic Features and Options.............................................................................8
2.3 Safety..................................................................................................................8
2.4 ESD Protection.................................................................................................. 9
2.5 Measured Parameters.......................................................................................9
2.5.1 Understanding Relative Humidity and Relative Saturation................10
2.6 Probe Filter........................................................................................................11
2.7 Chemical Purge.................................................................................................11
2.8 Environmental Compensation for Pressure..................................................12
2.9 Measurement Filtering Factor........................................................................12
2.10 Connectivity to Vaisala Insight Software......................................................12
2.11 Additional Features with Indigo Transmitters..............................................13
3. H2O2Measurement....................................................................................... 14
3.1 Operating Principle of H2O2Measurement.................................................. 14
3.2 Typical Applications........................................................................................ 16
3.3 Condensation Monitoring...............................................................................18
4. Installation.......................................................................................................20
4.1 Wiring...............................................................................................................22
4.2 Power Supply.................................................................................................. 23
4.3 Setting Probe in Analog or Digital Mode.....................................................23
5. Operation......................................................................................................... 25
5.1 Probe Start-Up................................................................................................25
5.2 Behavior at Exposure to H2O2.......................................................................25
5.3 H2O2Concentration Reading When Not Exposed to H2O2.......................25
5.4 Modbus............................................................................................................ 26
5.5 Operation in Analog Mode............................................................................ 26
5.5.1 Analog Output Overrange Behavior.....................................................26
5.5.2 Triggering Purge in Analog Mode......................................................... 27
6. Vaisala Insight Software............................................................................ 28
6.1 Connecting to Insight Software....................................................................28
Table of Contents
1

7. Using Probe with Indigo Transmitters................................................. 29
7.1 Indigo Overview............................................................................................. 29
7.1.1 Wireless Configuration Interface Overview.........................................30
7.2 Attaching Probes.............................................................................................31
7.3 Connecting to Wireless Configuration Interface........................................ 32
7.4 Logging in to Wireless Configuration Interface..........................................33
8. Maintenance....................................................................................................34
8.1 Cleaning the Probe.........................................................................................34
8.1.1 Chemical Tolerance.................................................................................34
8.2 Calibration and Adjustment.......................................................................... 35
9. Troubleshooting............................................................................................ 36
9.1 Problems and Their Possible Solutions........................................................36
9.2 Analog Output Error State............................................................................40
10. Technical Data.................................................................................................41
10.1 Dimensions......................................................................................................43
10.2 Accessories..................................................................................................... 44
Appendix A: Modbus Reference........................................................................45
A.1 Default Communication Settings................................................................. 45
A.2 Function Codes...............................................................................................45
A.3 Data Encoding................................................................................................ 45
A.3.1 32-Bit Floating Point or Integer Format...............................................45
A.3.2 16-Bit Integer Format............................................................................. 46
A.4 Modbus Registers...........................................................................................46
A.4.1 Measurement Data Registers.................................................................47
A.4.2 Configuration Registers......................................................................... 48
A.4.3 Status Registers...................................................................................... 54
A.4.4 Device Identification Objects.................................................................56
A.4.5 Test Value Registers................................................................................ 57
A.5 Modbus Communication Examples..............................................................58
Warranty........................................................................................................................ 61
Technical Support...................................................................................................... 61
Recycling....................................................................................................................... 61
HPP272 User Guide M211972EN-B
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List of Figures
Figure 1 HPP272 Probe Parts...........................................................................................7
Figure 2 Eect of H2O and H2O2on relative saturation (RS) and
relative humidity (RH).....................................................................................10
Figure 3 Operating principle of PEROXCAP measurement................................... 15
Figure 4 Example behavior of H2O2concentration, relative
saturation (RS), and relative humidity (RH) in a
vaporized H2O2bio-decontamination cycle (non-
condensing conditions)...................................................................................17
Figure 5 Example: RS behavior in dierent temperatures when
H2O2concentration (500 ppm) and H2O concentration
(8850 ppm) are constant............................................................................... 18
Figure 6 Decontaminated space with dierent temperatures and
RS levels (H2O2and H2O concentration evenly distributed)................ 19
Figure 7 Probe M12/5 Pins..............................................................................................22
Figure 8 Wiring Example for Connecting HPP272 to a PLC in
Analog Mode..................................................................................................... 23
Figure 9 Pins on the M12 male connector.................................................................. 24
Figure 10 Connecting Probe to Insight.........................................................................28
Figure 11 Attaching Probes to Indigo............................................................................31
Figure 12 Enabling and Accessing Indigo's Wireless Configuration
Interface..............................................................................................................32
Figure 13 Indigo Login View............................................................................................ 33
Figure 14 HPP272 Dimensions........................................................................................ 43
List of Figures
3

List of Tables
Table 1 Document Versions..............................................................................................5
Table 2 Related Manuals....................................................................................................5
Table 3 Applicable Patents or Applications.................................................................6
Table 4 Available Parameters...........................................................................................9
Table 5 Measurement Performance..............................................................................41
Table 6 Inputs and Outputs............................................................................................42
Table 7 Mechanical Specifications............................................................................... 43
Table 8 Operating Environment....................................................................................43
Table 9 Spare Parts and Accessories.......................................................................... 44
Table 10 Default Modbus Serial Communication Settings...................................... 45
Table 11 Modbus Function Codes.................................................................................. 45
Table 12 16-bit Signed Integer Format Details........................................................... 46
Table 13 Modbus Measurement Data Registers (Read-Only).................................47
Table 14 Modbus Configuration Data Registers (Writable)....................................49
Table 15 Modbus Status Registers (Read-Only)........................................................ 54
Table 16 Error Codes in Register 0201hex (32-bit)..................................................... 55
Table 17 Error Codes in Register 0203hex (32-bit).................................................... 56
Table 18 Device Identification Objects......................................................................... 56
Table 19 Test Value Registers...........................................................................................57
HPP272 User Guide M211972EN-B
4

1. About This Document
1.1 Version Information
This document provides instructions for installing, using, and maintaining Vaisala PEROXCAPâ
Hydrogen Peroxide, Humidity and Temperature Probe HPP272.
Table 1 Document Versions
Document
Code
Date Description
M211972EN-B December 2017 This document. Added description and Modbus registers for
pressure compensation, removed restriction not to perform a
purge during H2O2exposure, clarified operating system
requirements for Vaisala Insight software, clarified Indigo
200 transmitter compatibility with HPP272.
M211972EN-A September 2017 First version.
1.2 Related Manuals
Table 2 Related Manuals
Document Code Name
M211887EN Hydrogen Peroxide, Humidity and Temperature Probe HPP270 Series Quick
Guide
M211877EN Indigo 201 Analog Output Transmitter User Guide
1.3 Documentation Conventions
Warning alerts you to a serious hazard. If you do not read and
follow instructions carefully at this point, there is a risk of injury or even death.
WARNING!
Caution warns you of a potential hazard. If you do not read and
follow instructions carefully at this point, the product could be damaged or
important data could be lost.
CAUTION!
Chapter 1 – About This Document
5

Note highlights important information on using the product.
Tip gives information for using the product more eciently.
Lists tools needed to perform the task.
Indicates that you need to take some notes during the task.
1.4 Trademarks
Vaisalaâ, HUMICAPâ, and PEROXCAPâare registered trademarks of Vaisala Oyj.
Indigo™is a trademark of Vaisala Oyj.
All other product or company names that may be mentioned in this publication are trade
names, trademarks, or registered trademarks of their respective owners.
1.5 Patent Notice
This product is protected by the following patents and patent applications and their
corresponding national rights:
Table 3 Applicable Patents or Applications
Issuing Oce Publication Number
European Patent Oce EP 3004868
State Intellectual Property Oce of the P.R.C. CN 105229463A
United States Patent and Trademark Oce US 20160084811
HPP272 User Guide M211972EN-B
6

2. Product Overview
2.1 Introduction to HPP272
Vaisala PEROXCAPâHydrogen Peroxide, Humidity and Temperature Probe HPP270 series is
designed for demanding hydrogen peroxide bio-decontamination processes. The probes are
suitable for a variety of applications such as isolator, material transfer hatch, and room bio-
decontamination.
Hydrogen Peroxide, Humidity and Temperature Probe HPP272 provides measurement for
vaporized H2O2concentration, relative saturation, relative humidity, and temperature.
The H2O2measurement is based on comparing the readings of two composite humidity
sensors to determine the vapor concentration of H2O2. The probes are easy to install with a
plug-in/plug-out M12/5 connection. The digital and analog output options include an RS-485
interface for Modbus communication and two current output channels.
The probe is not intended for safety level measurement.
The probe is not intended to be used in vacuum applications.
When there is H2O2in the probe's environment, the probe must
always be powered on. When powered on, the PEROXCAP sensor is heated,
which permits using the probe in condensing H2O2conditions, maintains
measurement performance, and lengthens the probe's lifetime. When the probe
is powered o, exposure to H2O2condensation can break the PEROXCAP sensor
within a day, and the sensor will not recover.
CAUTION!
21 543
6
Figure 1 HPP272 Probe Parts
1Yellow transport cap. Remove this cap
before using the probe.
2Filter covering the sensor. The filter is
an essential part of the measurement
technology: do not remove the filter.
Filters are available as spare parts.
3PEROXCAP sensor under the filter.
4H2O2and humidity probe.
5Temperature probe.
65-pin M12 connector.
Chapter 2 – Product Overview
7

More Information
‣Dimensions (page 43)
‣Operating Principle of H2O2 Measurement (page 14)
‣Installation (page 20)
‣Wiring (page 22)
2.2 Basic Features and Options
• Vaisala PEROXCAPâH2O2measurement technology with excellent long-term stability.
• Vaporized H2O2measurement range 0 ... 2000 ppm.
• Relative saturation (RS) measurement range 0 ... 100 %RS.
• Relative humidity (RH) measurement range 0 … 100 %RH.
• Temperature (T) measurement range +5 ... +70 °C.
• Robust design allowing the probe to be installed directly in the process environment.
When powered on, the probe withstands H2O2and H2O condensation. The probe also
withstands nitrogen gas.
• Protective filter over the sensors designed to withstand high air flow rates and turbulence.
• Sensor heating to avoid condensation on the sensors.
• Chemical purge for optimized performance and lifetime.
• Pressure compensation for H2O2concentration (ppm), H2O concentration (ppm), and
relative saturation (%RS) measurement.
• Digital output: RS-485 interface for Modbus communication.
• Analog output: 2 x 4 ... 20 mA (default).
• Easy plug-in, plug-out.
• Can be used as a stand-alone probe or with Vaisala Indigo 200 series transmitters.
• Can be connected to Vaisala Insight software for configuration, diagnostics, and
temporary online monitoring.
More Information
‣Technical Data (page 41)
2.3 Safety
Ground the product and verify installation grounding periodically
to minimize shock hazard.
WARNING!
When returning a product for calibration or repair, make sure it
has not been exposed to dangerous contamination, and is safe to handle
without special precautions.
WARNING!
HPP272 User Guide M211972EN-B
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