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M212903EN-A
User Guide
Vaisala Handheld Humidity
and Temperature Probes
HMP80 Series
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PUBLISHED BY
Vaisala Oyj
Vanha Nurmijärventie 21, FI‑01670 Vantaa, Finland
P.O. Box 26, FI‑00421 Helsinki, Finland
+358 9 8949 1
www.vaisala.com
docs.vaisala.com
© Vaisala 2023
No part of this document 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, translated, adapted, sold or
disclosed to a third party without prior
written permission of the copyright holder.
Translated documents 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 document are subject
to change without prior notice.
Local rules and regulations may vary and
they shall take precedence over the
information contained in this document.
Vaisala makes no representations on this
document’s compliance with the local
rules and regulations applicable at any
given time, and hereby disclaims any and
all responsibilities related thereto.
This document 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.
This product may contain open source
software (OSS) components. In the event
this product contains OSS components,
then such OSS is governed by the terms
and conditions of the applicable OSS
licenses, and you are bound by the terms
and conditions of such licenses in
connection with your use and distribution
of the OSS in this product. Applicable OSS
licenses are included in the product itself
or provided to you on any other applicable
media, depending on each individual
product and the product items delivered
to you.
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Table of contents
Table of contents
1. About this document.....................................................................................7
1.1 Version information.......................................................................................... 7
1.2 Related manuals................................................................................................7
1.3 Documentation conventions............................................................................7
1.4 Trademarks........................................................................................................ 8
2. Product overview............................................................................................ 9
2.1 Basic features and options.............................................................................. 9
2.2 HMP80N and HMP80L probe models............................................................ 9
2.3 Output parameters......................................................................................... 10
2.4 Probe structure................................................................................................. 11
2.5 Safety................................................................................................................ 12
2.6 ESD protection.................................................................................................12
3. Functional description.................................................................................13
3.1 HUMICAP technology..................................................................................... 13
3.2 Sensor purge....................................................................................................13
3.3 Condensation prevention functions..............................................................14
3.4 Environmental compensation........................................................................14
3.5 Filtering factor................................................................................................. 15
4. Attaching cable to probe........................................................................... 16
5. Using probe with Indigo80 handheld indicator................................18
5.1 Indigo80 handheld indicator......................................................................... 18
5.1.1 Indigo80 keypad...................................................................................... 19
5.1.2 Indigo80 main menu................................................................................19
5.2 Connecting probes to Indigo80.................................................................... 19
5.3 Measurement location.....................................................................................21
5.3.1 Configuring environmental compensations.........................................22
5.4 Configuring probe features with Indigo80 handheld indicator................22
5.4.1 Example of configuring filtering factor with Indigo80
handheld indicator.................................................................................. 23
5.5 Configuring environment settings with Indigo80 handheld indicator.... 24
6. Configuration with Insight software.....................................................26
6.1 Vaisala Insight PC software...........................................................................26
6.2 Connecting to Insight software.................................................................... 26
6.3 Configuration options.................................................................................... 27
6.4 Diagnostics in Insight..................................................................................... 27
7. Calibration and adjustment......................................................................29
7.1 Calibration and adjustment overview..........................................................29
7.2 Adjustment points and requirements..........................................................29
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HMP80 Series User Guide M212903EN-A
7.3 Calibration and adjustment with Indigo80 handheld indicator...............30
7.3.1 Performing guided calibration with Indigo80 handheld indicator.... 31
7.3.2 Performing manual adjustment with Indigo80 handheld
indicator....................................................................................................32
7.3.3 Restoring factory adjustment with Indigo80 handheld indicator.....33
7.4 Adjusting measurement with Insight software.......................................... 34
7.5 HMK15 Humidity Calibrator with HMP80 series probes.............................35
8. Maintenance....................................................................................................36
8.1 Cleaning the probe.........................................................................................36
8.1.1 Chemical tolerance................................................................................. 36
8.2 Changing the probe filter.............................................................................. 37
9. Troubleshooting............................................................................................38
9.1 Problem situations......................................................................................... 38
9.2 Error messages............................................................................................... 38
9.3 Restoring factory default settings with Insight software......................... 40
9.4 Restoring factory default settings with Indigo80 handheld indicator..... 41
9.5 Writing a problem report............................................................................... 41
10. Technical data................................................................................................ 42
10.1 HMP80 specifications.................................................................................... 42
10.2 Dimensions......................................................................................................45
10.3 Spare parts and accessories.........................................................................46
10.4 Accuracy of calculated output parameters.................................................46
Appendix A:
Recycling instructions...........................................................48
Maintenance and calibration services.........................................................51
Warranty.............................................................................................................51
Technical support.............................................................................................51
Recycling............................................................................................................51
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List of figures
Figure 1 HMP80N dimensions, side and bottom view............................................10
Figure 2 HMP80L dimensions, side and bottom view............................................ 10
Figure 3 Probe parts (model HMP80N shown)..........................................................11
Figure 4 Indigo80 handheld indicator.........................................................................18
Figure 5 Indigo80 keypad...............................................................................................19
Figure 6 Indigo80 main menu........................................................................................19
Figure 7 Connecting probes to Indigo80.................................................................. 20
Figure 8 Example installation........................................................................................22
Figure 9 HMP80L in Insight software..........................................................................27
Figure 10 HMP80L diagnostics in Insight (advanced mode)..................................28
Figure 11 Indigo80 calibration methods for probes.................................................30
Figure 12 Calibrating a humidity probe with HMK15 using 211302 adapter........35
Figure 13 HMP80N humidity measurement accuracy as a function
of temperature..................................................................................................43
Figure 14 HMP80N temperature measurement accuracy over full range.......... 43
Figure 15 HMP80L humidity measurement accuracy as a function
of temperature..................................................................................................43
Figure 16 HMP80L temperature measurement accuracy over full range........... 43
Figure 17 Dimensions of HMP80L (top) and HMP80N (bottom),
side and bottom view.....................................................................................45
Figure 18 Vaisala Humidity Calculator in Advanced mode..................................... 47
Figure 19 Materials for recycling....................................................................................48
List of figures
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HMP80 Series User Guide M212903EN-A
List of tables
Table 1 Document versions (English)............................................................................7
Table 2 Related manuals................................................................................................... 7
Table 3 HMP80N and HMP80L temperature ranges.................................................9
Table 4 HMP80 series output parameters.................................................................. 10
Table 5 Troubleshooting table.......................................................................................38
Table 6 HMP80 series measurement performance................................................. 42
Table 7 HMP80 series operating environment......................................................... 43
Table 8 HMP80 series inputs and outputs................................................................. 44
Table 9 HMP80 series output parameters................................................................. 44
Table 10 HMP80 series mechanical specifications.................................................... 44
Table 11 HMP80 series compliance............................................................................... 45
Table 12 HMP80 series spare parts and accessories.................................................46
Table 13 Materials for recycling...................................................................................... 48
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Chapter 1 – About this document
1. About this document
1.1 Version information
This document provides instructions for using and maintaining Vaisala HMP80 HUMICAPâ
Handheld Humidity and Temperature Probes.
Table 1 Document versions (English)
Document code Date Description
M212903EN-A June 2023 First version.
1.2 Related manuals
For the latest versions of these documents, see docs.vaisala.com.
Table 2 Related manuals
Document code Name
M212722EN Vaisala Indigo80 Handheld Indicator User Guide
M212904EN Vaisala DMP80 Series Handheld Probes User Guide
M212804EN Vaisala DMP80 Series Handheld Probes Quick Guide
M212803EN Vaisala HMP80 Series Handheld Probes Quick Guide
M210185EN Vaisala HMK15 Humidity Calibrator User Guide
1.3 Documentation conventions
WARNING!
follow instructions carefully at this point, there is a risk of injury or even death.
CAUTION!
follow instructions carefully at this point, the product could be damaged or
important data could be lost.
Warning alerts you to a serious hazard. If you do not read and
Caution warns you of a potential hazard. If you do not read and
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HMP80 Series User Guide M212903EN-A
Note highlights important information on using the product.
1.4 Trademarks
Vaisalaâ and HUMICAPâ are registered trademarks of Vaisala Oyj.
Microsoftâ and Windowsâ are either registered trademarks or trademarks of Microsoft
Corporation in the United States and other countries.
All other product or company names that may be mentioned in this publication are trade
names, trademarks, or registered trademarks of their respective owners.
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Chapter 2 – Product overview
2. Product overview
Vaisala HUMICAPâ Handheld Humidity and Temperature Probes HMP80 Series have been
designed for portable spot-checking, field calibration, and data logging use with the Indigo80
handheld indicator. For easy access to device analytics and configuration, HMP80 probes can
be connected to Vaisala Insight software for Windowsâ.
The HMP80 series probes are available in two lengths oering similar measurement
performance. The longer model (HMP80L) is designed for measurements in more extreme
temperatures.
The IP66-classified probe handle oers protection against moisture and dust with the probe
connection cable attached. Also the cable connection is protected against mechanical stress
by the robust design of the handle.
For more information on the Indigo product family, see www.vaisala.com/indigo.
The free Insight PC software is available for download at www.vaisala.com/insight.
2.1
Basic features and options
• Portable design optimized for industrial spot-checking and field calibration
• Wide temperature measurement range
• Condensation-tolerant
• Sensor purge improves long-term stability and chemical resistance
• Compatible with Indigo80 handheld indicator and Insight PC software
More information
‣
Indigo80 handheld indicator (page 18)
‣
Vaisala Insight PC software (page 26)
2.2
HMP80N and HMP80L probe models
Both HMP80 series probe models have the same type of sensor, Vaisala HUMICAPâ R2C, with
sensor purge and sensor warming functionality.
Table 3 HMP80N and HMP80L temperature ranges
Property HMP80N HMP80L
Relative humidity measurement
range
Temperature measurement
range
0 … 100 %RH
−20 … +60 °C (−4 … +140 °F) −50 … +120 °C (−58 … +248 °F),
short-time measurement range
−50 … +180 °C (−58 … +356 °F)
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Ø12 [0.5]
103 [4.1] 83 [3.3]
23
63 [2.5]
272 [11]
[0.91]
25
[0.98]
47 [1.9]
mm [in]
probe handle detachable
end piece
25
[0.98]
47 [1.9]
mm [in]
103 [4.1]
278 [11]
63 [2.5]
485 [19]
41 [1.6]
Ø 12 [0.5]
probe handle detachable
end piece
HMP80 Series User Guide M212903EN-A
Property HMP80N HMP80L
Operating temperature of
−20 … +60 °C (−4 … +140 °F) −50 … +120 °C (−58 … +248 °F)
probe head
Operating temperature of
−10 … +60 °C (−14 … +140 °F)
probe body
The identifying letter of each probe model is included in the configuration code of the probe,
shown on the side of the device. Example codes: N1A1S0 for an HMP80N probe, and L1A1S0 for
an HMP80L probe.
Figure 1 HMP80N dimensions, side and bottom view
Figure 2 HMP80L dimensions, side and bottom view
2.3
Output parameters
Values of all available output parameters are locked (showing the latest valid
value) when sensor purge or condensation prevention functions are active.
Table 4 HMP80 series output parameters
Output parameter name and unit
Absolute humidity (g/m3)
Absolute humidity at NTP (g/m3)
Relative humidity (%RH)
Relative humidity (dew/frost) (%RH)
Dew point temperature (°C) Temperature (°C)
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5
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3
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Chapter 2 – Product overview
Output parameter name and unit
Dew/frost point temperature (°C) Water concentration (ppmv)
Dew/frost point temperature at 1 atm (°C) Water concentration (wet basis) (vol‑%)
Dew point temperature at 1 atm (°C) Water mass fraction (ppmw)
Dew point temperature dierence (°C) Water vapor pressure (hPa)
Enthalpy (kJ/kg) Water vapor saturation pressure (hPa)
Mixing ratio (g/kg) Wet-bulb temperature (°C)
More information
‣
HMP80 specifications (page 42)
2.4
Probe structure
Figure 3 Probe parts (model HMP80N
shown)
1 Protection cap (remove before use)
2 Location of sensors on the probe head,
inside a removable filter
3 Probe shaft
4 Probe handle with type label. Contains
component board and electronics
housing.
5 M12-5M A-coded connector (inside the
probe handle)
6 Detachable end piece of the probe
handle, protecting the cable connector
inside the handle
1)
1) The HUMICAPâ R2C sensor used in
HMP80 series probes is not userreplaceable. To have the sensor replaced,
contact a Vaisala Service Center.
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HMP80 Series User Guide M212903EN-A
More information
‣
Recycling instructions (page 48)
‣
Maintenance and calibration services (page 51)
2.5 Safety
WARNING!
has not been exposed to dangerous contamination, and is safe to handle
without special precautions.
CAUTION!
are no user serviceable parts inside the probe handle.
CAUTION!
deposit impurities on the probe head.
CAUTION!
condensation prevention warming or sensor purge functions are active.
When returning a product for calibration or repair, make sure it
Do not attempt to open the solid part of the probe handle. There
Do not touch the probe head with your bare hands. Touching will
Be aware that the probe head may become hot to touch when
2.6 ESD protection
Electrostatic discharge (ESD) can damage electronic circuits. Vaisala products are adequately
protected against ESD for their intended use. However, it is possible to damage the product by
delivering electrostatic discharges when touching, removing, or inserting any objects in the
equipment housing.
To avoid delivering high static voltages to the product:
• Handle ESD‑sensitive components on a properly grounded and protected ESD workbench
or by grounding yourself to the equipment chassis with a wrist strap and a resistive
connection cord.
• If you are unable to take either precaution, touch a conductive part of the equipment
chassis with your other hand before touching ESD‑sensitive components.
• Hold component boards by the edges and avoid touching component contacts.
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Chapter 3 – Functional description
3. Functional description
3.1 HUMICAP technology
Vaisala HUMICAPâ is a capacitive thin-film polymer sensor consisting of a substrate on which
a thin film of polymer is deposited between two conductive electrodes. The sensing surface is
coated with a porous metal electrode to protect it from contamination and exposure to
condensation. The substrate is typically glass or ceramic.
The thin-film polymer either absorbs or releases water vapor as the relative humidity of the
measurement environment rises or falls. The dielectric properties of the polymer film depend
on the amount of absorbed water. As the relative humidity around the sensor changes, the
dielectric properties of the polymer film change, and so does the capacitance of the sensor.
Capacitance is converted into a humidity reading. The HUMICAP sensor is complemented by a
temperature sensor, which is bonded together with the capacitive polymer on some of the
sensor variants. Additional output parameters such as dew point are calculated from the
readings measured by the sensors.
HUMICAP sensors with bonded temperature sensors are also known as composite sensors.
Probes with composite sensors can use the sensor purge function to maintain sensor
performance. They also implement condensation prevention functions that are a key element
in achieving an excellent stability and good condensation resistance in high humidity
applications.
3.2
Sensor purge
Sensor purge heats the sensor to a high temperature, which evaporates excess molecules out
of the sensor polymer. This minimizes the drift at the wet end of humidity readings, and
removes contaminants from the sensor element. The heating phase is followed by a cooling
phase where the sensor cools down to ambient temperature.
During sensor purge the values of the output parameters stay frozen at their last measured
values. Sensor purge takes a few minutes to complete, after which measurement continues
normally and updated values of output parameters are again available.
HMP80 series probes perform the purge at one day intervals (known as interval purge). If
desired, sensor purge can also be performed when the probe is powered on (known as startup
purge). Purge settings can be configured with the Insight PC software or the Indigo80
handheld indicator.
To allow the sensor purge to be completed in a reasonable time, it will not be
started if the ambient temperature is below 0 °C (+32 °F).
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3.3 Condensation prevention functions
Condensation prevention prevents water from condensing on the sensor and interfering with
humidity measurement. Use of condensation prevention is controlled by a single setting that
can be changed with the Insight software or the Indigo80 handheld indicator.
By default, condensation prevention is o.
When condensation prevention is enabled, the probe will automatically use its available
condensation prevention functions. When warming is active, values of output parameters that
depend on temperature measurement (for example, relative humidity) are unavailable, unless
the temperature compensation setting is set to read the temperature from an external source.
Output parameters that can be measured or calculated without this external temperature
information, such as dew point temperature, are available even without the temperature input.
Sensor warming
The sensor warming feature of the condensation prevention function is intended for improving
the condensation tolerance of HMP80 probes. It warms the humidity sensor when necessary to
keep its temperature above the dew point of the measurement environment. When sensor
warming is activated, all temperature-dependent output parameters become unavailable,
unless the temperature compensation setting is set to read the temperature from an external
source. The output parameters become available again 4 minutes after the warming is
stopped.
Sensor warming is intended for improving the condensation tolerance of the
probe in measurement environments that may occasionally cause condensation
to form. It is not intended for environments where continuous warming is needed.
3.4 Environmental compensation
Environmental compensations improve the measurement accuracy of the probe. You can
configure the settings with the Insight software or the Indigo80 handheld indicator.
Pressure compensation
The pressure of the measured environment aects the accuracy of humidity calculations,
especially calculations that are dependent on pressure (for example, mixing ratio). To achieve
accurate output of all humidity parameters, you are recommended to update the value of the
pressure compensation setpoint to match the environmental pressure when installing the
probe.
For example, when you install the probe in a process with a pressure diering from normal
atmospheric pressure, update the correct pressure into the pressure compensation setpoint
parameter or register of the probe using the Insight software or the Indigo80 handheld
indicator.
The entered value is persistent and remains unchanged at device restart.
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Chapter 3 – Functional description
Temperature compensation
You need to set an external source for the temperature compensation setpoint if the sensor
warming feature of the condensation prevention function prevents the probe's own
temperature measurement, and the output parameters that require temperature information
to be known are required.
When warming is active, values of output parameters that depend on temperature
measurement (for example, relative humidity) are unavailable, unless temperature information
is read from an external source. Output parameters that can be measured or calculated
without this external temperature information, such as dew point temperature, are available
even without the temperature input.
The external temperature source can be another probe that is connected to the same Indigo80
handheld indicator as your probe.
To get the most accurate measurement values, the external source needs to be able to provide
the temperature compensation setpoint value constantly in real time, and the value needs to
correspond to the temperature of the probe's measurement environment as accurately as
possible. A suitable measurement point is as close to the probe as possible, but yet far enough
so that ongoing condensation prevention warming of the probe does not have an eect on the
measured value.
At device restart, the value is cleared.
More information
‣
Configuring environment settings with Indigo80 handheld indicator (page 24)
3.5
Filtering factor
The filtering factor determines how quickly the results of measurement cycles are reflected in
values of output parameters. You can use the filtering factor to slow down the response time
of the measurement, filtering out rapid changes and measurement noise.
• Maximum value (1) = No filtering, fastest measurement. Output shows 100 % of the most
recent measured value.
• Less than maximum value = Filtering is applied and measurement response time is
reduced. For example, defining a value that is 90 % of the maximum value means that the
filtered output reading = 90 % of the most recent measured value + 10 % of the previous
reading.
Filtering factor settings can be configured with the Insight software or the Indigo80 handheld
indicator.
More information
‣
Example of configuring filtering factor with Indigo80 handheld indicator (page 23)
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HMP80 Series User Guide M212903EN-A
4. Attaching cable to probe
• Probe connection cable (Vaisala item code 272075SP)
The handle of HMP80 probes has a detachable end piece that protects the probe's cable
connector from mechanical stress, such as physical shocks.
To detach the end piece of the handle and expose the cable connector:
1. Hold the probe firmly in your hands.
2. Grip the end piece of the handle and twist it counterclockwise to detach it.
3. Pull out the end piece.
4. You can now attach a probe connection cable in the HMP80 probe's cable connector.
Before attaching the cable, make sure to insert the cable through the end
piece first.
5. Position the end piece against the probe and twist it clockwise to secure it into place.
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Chapter 4 – Attaching cable to probe
The probe is delivered with a yellow cap protecting the filter. Leave the protection
cap on during storage, but remove it before taking the probe into use.
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5. Using probe with Indigo80 handheld indicator
5.1 Indigo80 handheld indicator
Figure 4 Indigo80 handheld indicator
Vaisala Indigo80 Handheld Indicator is a portable diagnostics tool that accommodates up to
two Vaisala Indigo-compatible probes or transmitters for measuring a wide range of
parameters.
With the indicator, you can:
• See real-time measurements and device and status information
• Log measurement data
• Calibrate and adjust the probe
• Configure probe features and settings such as condensation prevention, compensation
setpoints, sensor purge, and filtering factor. The available features and settings depend on
the probe model and firmware version.
Accessing certain configuration options for your probe requires using the free
Insight PC software, downloadable at www.vaisala.com/insight.
The help tours in the indicator's user interface guide you through the key features of the
indicator. You can access the tours in the Help menu by pressing the
For more information on using the indicator, for example, editing the measurement views and
performing data logging, see Indigo80 User Guide (M212722EN).
18
button.
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3
2
1
1
2
3
4
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Chapter 5 – Using probe with Indigo80 handheld indicator
5.1.1 Indigo80 keypad
Figure 5 Indigo80 keypad
1 Power on/o and main menu button
2 Arrow buttons for navigating menus
and scrolling views
3 Select button for selecting items in the
user interface
5.1.2 Indigo80 main menu
Pressing the button while navigating the Indigo80 menus and views opens the main menu.
Figure 6 Indigo80 main menu
1 Devices menu contains, for example,
options related to sensor purge,
calibration, and environment settings
(depending on the connected device).
2 Data logging menu for setting logging
interval and duration, and browsing
data files.
3 Notifications menu displays
notifications related to Indigo80 and
the connected devices.
4 Indigo80 menu for changing the
settings of Indigo80 (for example,
date, time, and language) and viewing
device information.
5 Help menu contains a Getting started
tour showing the key features of
Indigo80, as well as instructions for
sending devices to Vaisala for
calibration and maintenance.
5.2 Connecting probes to Indigo80
• Probe connection cable
Up to two Vaisala Indigo-compatible probes or transmitters can be connected to the ports
located on the bottom of Indigo80. You can connect and disconnect devices both when the
indicator is powered on and when it is o.
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2
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HMP80 Series User Guide M212903EN-A
Vaisala recommends using cables provided by Vaisala when connecting devices to the
indicator. Cables and other accessories are available to order at store.vaisala.com.
Figure 7 Connecting probes to Indigo80
M12-5F ports on the bottom of Indigo80 for connecting compatible Vaisala devices.
1
Ports are labeled and .
2 M12-5M A-coded cable connector
3 M12-5F A-coded cable connector
4 HMP80 probe, displayed as by Indigo80
5 HMP7 probe, displayed as by Indigo80
1. If the indicator is powered and no devices are connected to it, the text Please connect a
probe will be shown on the display.
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Chapter 5 – Using probe with Indigo80 handheld indicator
2. Insert the probe connection cable in one of the ports on the bottom of the indicator.
• Note the orientation of the cable connector when inserting it
• Hold the connector in place while turning its locking ring clockwise –
never twist the connector body!
3. Connect the probe to the M12-5F end of the probe connection cable.
When the indicator recognizes the connected probe, it shows a notification on the display
(for example, HMP80 connected). A probe connected to the leftmost port in the indicator
is labeled
4. To change probes, simply detach the cable from the probe and connect a new probe.
on the indicator's display, while the probe in the rightmost port is labeled .
5.3
Measurement location
When taking measurements with the probe, consider the following:
• Verify the operating environment specification of the probe model. The probe head
typically has a much wider operating temperature range than the probe handle.
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HMP80 Series User Guide M212903EN-A
Figure 8 Example installation
1 Mount the probe head horizontally to prevent any water condensing on the probe head
from running to the sensors
2 Attach Indigo80 to a metallic surface using the optional magnetic hanger accessory
(Vaisala item code ASM214318SP).
5.3.1 Configuring environmental compensations
After installation, configure the pressure compensation setting, if relevant to your probe and
its measurement environment.
For example, when you have installed the probe in a process with a pressure diering from
normal atmospheric pressure, update the correct pressure into the pressure compensation
setpoint parameter or register of the probe. This allows the probe to apply the appropriate
pressure compensation into its measurement results.
You can configure the setting with the Insight software or the Indigo80 handheld indicator.
5.4
Configuring probe features with Indigo80
handheld indicator
• Probe connection cable
You can use the Indigo80 handheld indicator to configure probe features such as
compensation setpoints, sensor purge settings, and filtering factor. The available features
depend on the probe model and firmware version.
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Chapter 5 – Using probe with Indigo80 handheld indicator
Accessing certain configuration options for your probe requires using the free
Insight PC software, downloadable at www.vaisala.com/insight.
1. Connect the probe(s) to the indicator.
2. Open the main menu by pressing
3. Select Devices. If you have more than one device connected to the indicator, make a
further selection between the devices.
4. Select Settings to access and change the features available for your probe.
5. Exit the menu by pressing or return to the main menu by pressing .
.
5.4.1 Example of configuring filtering factor with Indigo80
handheld indicator
• Probe connection cable
The filtering factor allows averaging the output if the measuring environment produces
occasional exceptionally high or low readings.
This example shows how to configure the filtering factor as 0.9 using the Indigo80 handheld
indicator.
This means that the new measurement output is a combination of the latest measurement
(90 %) and the previous measurement (10 %).
1. Connect the probe(s) to the indicator.
2. Open the main menu by pressing
3. Select Devices. If you have more than one device connected to the indicator, make a
further selection between the devices.
4. Select Settings > Filtering.
5. Select Filtering factor.
a. Use the arrow buttons to set the value as 0.9.
b. Select Set.
6. Select Extended filtering on/o > On to enable measurement filtering using the filtering
factor defined in the previous step.
7. Exit the menu by pressing
More information
‣
Filtering factor (page 15)
.
or return to the main menu by pressing .
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HMP80 Series User Guide M212903EN-A
5.5 Configuring environment settings with
Indigo80 handheld indicator
• Probe connection cable
For optimal measurement accuracy, you can use the Indigo80 handheld indicator to give
additional information about the connected probe’s measurement environment.
The environment settings available via Indigo80 correspond to the environmental
compensation settings of the probe. Therefore, Environment settings and
Settings > Compensation setpoints are interconnected: the configuration set in
either menu is applied to both.
1. Connect the probe(s) to the indicator.
2. Open the main menu by pressing .
3. Select Devices. If you have more than one device connected to the indicator, make a
further selection between the devices.
4. Select Environment settings to access the settings for your probe.
The available environment settings depend on the probe and probe firmware version.
Pressure
Value for pressure compensation. The entered value is persistent and remains
unchanged at device restart.
Temperature
If any value is entered in this field, the device will use it as its temperature
measurement value instead of its own sensor reading. This is needed when sensor
warming is used, as it will also heat the temperature sensor of the device.
At device restart, the value is cleared.
24
The temperature value needs an external source, for example, another
probe that is able to provide the value constantly in real time, and the
value needs to correspond to the temperature of the measurement
environment as accurately as possible. Thus, set the temperature value
only if you have another probe connected to the indicator from which
you can read the value. Do not set the temperature value manually.
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Chapter 5 – Using probe with Indigo80 handheld indicator
5. Select a setting from the list, for example, Pressure.
a. Select the unit, if prompted.
b. Use the arrow buttons to set the desired value, and then select OK or Set.
You can also select to read the value from another probe connected to the indicator,
provided that the probe can output the required compensation parameter. Press to
highlight the Read value from field, and then press
to select the other probe as the
source of the value.
For Temperature, always set the temperature value to be read from
another probe. Do not set the temperature value manually. Make sure
that both probes are in the same environment to get the most accurate
measurement values.
6. Exit the menu by pressing or return to the main menu by pressing .
More information
‣
Environmental compensation (page 14)
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HMP80 Series User Guide M212903EN-A
6. Configuration with Insight software
6.1 Vaisala Insight PC software
Vaisala Insight PC software is a configuration software for Indigo-compatible probes and other
supported devices. Insight is available for Microsoft Windowsâ operating systems (64-bit
only).
With the Insight software, you can:
• See probe information and status
• See real-time measurement data
• Record data for up to 48 hours and export in CSV format
• Configure probe features such as measurement filtering, sensor purge, and condensation
prevention
• Calibrate and adjust the probe
Download Vaisala Insight software at www.vaisala.com/insight.
6.2
Connecting to Insight software
• Computer with a Microsoft Windowsâ operating system (64-bit version) and
Vaisala Insight PC software installed
• Indigo USB adapter (item code USB2) or USB connection cable (item code
242659)
CAUTION!
computer may not be able to supply enough power through its USB ports. Use
an externally powered USB hub that can supply >2 W for each port.
1. Open the Insight software on your PC.
2. Verify the operating mode of Insight from the Settings menu and change it if appropriate.
• Basic mode is suitable for most use cases
• Advanced mode provides access to additional configuration options. Use Advanced
mode only when instructed to do so by product documentation or Vaisala technical
support.
3. Connect the USB adapter to a free USB port on the PC or USB hub.
4. Connect the probe to the USB adapter.
5. Wait for the Insight software to detect the probe.
26
When connecting several devices at the same time, note that your
Page 27
Chapter 6 – Configuration with Insight software
6.3 Configuration options
The complete probe configuration is accessible via the Insight software. After connecting the
probe, select > Configure device to access the configuration options.
If Insight has been set to Advanced mode, additional configuration options may be available.
Use Advanced mode only when instructed to do so by product documentation or Vaisala
technical support.
Figure 9 HMP80L in Insight software
More information
‣
Restoring factory default settings with Insight software (page 40)
6.4
Diagnostics in Insight
Messages sent by the connected devices are shown automatically in Insight. Additional
diagnostic data is available on the Diagnostics page. The data available depends on the probe
model and Insight operating mode (basic or advanced). The data can be very useful when
diagnosing issues together with Vaisala support, particularly the diagnostic files.
Diagnostic files
If Insight is in Advanced mode, you can retrieve the following diagnostic files from the
connected probe:
• SSR/Ts histogram: Table of humidity and temperature conditions measured by the probe
• Error log: Cumulative total of the error and status events tracked by the probe
Both files contain data from since the probe was manufactured, or since the files were last
cleared. Clearing the files is not recommended unless instructed by Vaisala support. The
buttons to clear the files are located at the bottom of the Diagnostics page.
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HMP80 Series User Guide M212903EN-A
The files are in comma separated value (CSV) format. They can be opened for viewing in
spreadsheet programs such as Microsoft Excel or in text editors.
Figure 10 HMP80L diagnostics in Insight (advanced mode)
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Chapter 7 – Calibration and adjustment
7. Calibration and adjustment
7.1 Calibration and adjustment overview
Calibration means comparing the measurement output of the device to a known
reference, such as a known environment in a calibration chamber or the output of
a reference instrument. Correcting the reading of the device so that it measures
accurately is referred to as adjustment.
The probe is fully calibrated and adjusted as shipped from the factory. To maintain the
accuracy of the measurement, calibrate and adjust the probe as needed. Typical calibration
interval is one year, but depending on the application it may be necessary to check the
accuracy more frequently.
Vaisala recommends sending the probe regularly to Vaisala for factory calibration. The probe is
calibrated and adjusted at multiple points along its measurement range. Factory calibration
always includes a traceable calibration certificate and adjustment, if needed.
Factory calibration leads to highest accuracy and lowest uncertainty. After factory calibration
the instrument performs as new. For up-to-date information about calibration points and
oering, visit store.vaisala.com.
WARNING!
has not been exposed to dangerous contamination, and is safe to handle
without special precautions.
It is also possible to calibrate and adjust the probe on the field using the Insight PC software or
the Indigo80 handheld indicator.
If you think the device is not measuring correctly, calibration and adjustment is
not the first thing to do. Check the following first:
• Make sure nothing is interfering with the measurement: heat sources,
temperature dierences, or condensation.
• Check that there is no moisture on the probe. If the sensor has become wet,
wait for it to dry.
• Always wait for the measurement to stabilize.
When returning a product for calibration or repair, make sure it
7.2 Adjustment points and requirements
You can adjust the humidity measurement in 1 … 5 points and temperature measurement in 1...2
points, depending on the device that you use for the adjustment. Note the following:
• Humidity adjustment in more than 2 points is only available when you use the Insight
software in Advanced Mode.
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HMP80 Series User Guide M212903EN-A
• If you are adjusting in more than one humidity point, make sure the first two points are at
least 10 %RH apart.
• The probe will reject adjustments that are too large, that is, greater than 10 %RH for
humidity and 0.5 °C for temperature. If the probe appears to need such a large correction,
perform a sensor purge and repeat the adjustment procedure. Make sure that the
measurement has stabilized and the reference environment is reliable. If the required
adjustment is still too large, the probe needs to be serviced by Vaisala.
When adjustment of humidity measurement is necessary, Vaisala recommends
adjusting in two points, 11 %RH and 75 %RH. These humidities can be produced
using Vaisala HMK15 Humidity Calibrator.
Adjustment of temperature measurement is typically not necessary.
More information
‣
Calibration and adjustment with Indigo80 handheld indicator (page 30)
‣
Adjusting measurement with Insight software (page 34)
‣
HMK15 Humidity Calibrator with HMP80 series probes (page 35)
7.3
Calibration and adjustment with Indigo80
handheld indicator
The Indigo80 handheld indicator provides two ways to calibrate and adjust measurements for
probes: Guided calibration and Manual adjustment.
Figure 11 Indigo80 calibration methods for
probes
• Choose Guided calibration when you want the indicator to guide you through the
calibration process step by step. At the end you can also adjust the measurement, if
needed.
• Choose Manual adjustment when you want to freely set the reference and measured
values to adjust the measurement.
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Chapter 7 – Calibration and adjustment
Calibrating a measurement with the indicator, including purge and adjustment, typically takes
1 ... 2 hours depending on the number of calibration points.
7.3.1 Performing guided calibration with Indigo80 handheld indicator
• Probe connection cable
• Reference environment(s) for producing the desired reference values
In guided calibration, the indicator guides you through the calibration process step by step. At
the end, you can also adjust the measurement, if needed.
You can choose to do either 1-point or 2-point calibration, and choose to use the reference
environment or instrument of your choice, for example, another probe connected to your
indicator.
For relative humidity, you can choose to use Vaisala HMK15 Humidity Calibrator. For more
information on HMK15, see HMK15 User Guide (M210185EN).
1. Connect the probe(s) to the indicator.
2. If your probe supports the sensor purge feature, wait for the start-up purge to finish.
3. Open the main menu by pressing .
4. Select Devices. If you have more than one device connected to the indicator, make a
further selection between the devices.
5. Select Calibrate / Adjust.
6. Select the parameter, for example, Relative humidity.
7. Select Guided calibration.
8. In Calibration points, select the number of the calibration points: 1 point or 2 points.
9. In Reference, select the desired reference environment(s) or reference instrument(s).
Selection Other reference allows you to use any reference environment(s) of your choice.
For 2-point calibration of relative humidity, you can select two salts from the list, one for
each calibration point.
When you have selected the reference environments for 2-point calibration, press
get back to the previous view.
10. Select Start calibration.
The indicator guides you through the calibration process from this point onwards. Press
to proceed from one view to another.
to
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HMP80 Series User Guide M212903EN-A
7.3.2 Performing manual adjustment with Indigo80 handheld indicator
• Probe connection cable
• Reference environment(s) for producing the desired reference values
This procedure tells you how to use the indicator to adjust the probe's measurement in 1 ... 2
points.
1. Connect the probe(s) to the indicator.
2. Open the main menu by pressing .
3. Select Devices. If you have more than one device connected to the indicator, make a
further selection between the devices.
4. If your probe supports the sensor purge feature, wait for the start-up purge to finish or
start the purge manually by selecting Devices > <your device> > Sensor purge.
After the purge has been completed, continue to the next step.
5. Select Calibrate / Adjust.
6. Select the parameter, for example, Relative humidity.
7. Select Manual adjustment.
8. Place the probe to the first reference point and select Reference value, point 1 to open
the stabilizing graph view. Wait for the measurement to stabilize fully.
The stabilization typically takes at least 10 ... 15 minutes.
a. When the reading has stabilized, press
b. Use the arrow buttons to set the value of the reference, and then select OK or Set.
.
If you already have the reference and measured values available for your
calibration point(s), you can just skip the stabilizing graph view with the
button to get to the view where you can set the reference value. Then replace
the automatically filled Measured value, point 1 and Measured temperature,
point 1 with your actual values.
9. If you want to adjust the measurement in 2 points, place the probe to the second
reference point. Then scroll down the <parameter> adjustment view and select
Reference value, point 2 to open the stabilizing graph view. Wait for the measurement to
stabilize fully.
a. When the reading has stabilized, press
b. Use the arrow buttons to set the value of the second reference, and then select OK or
Set.
32
.
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Chapter 7 – Calibration and adjustment
10. In <parameter> adjustment view, check the dierence between each reference and
measured value. Very large dierences may be due to insucient stabilization time or
unsuitable calibration setup.
• To store the adjustments to the probe, scroll down and select Activate adjustment >
OK. Confirm by selecting OK.
• To exit without taking the adjustment in use, press to end calibration.
11. Update the calibration information in Calibrate / Adjust > Calibration information.
Navigate to the Calibration information menu by pressing
12. Press
to end calibration.
.
7.3.3 Restoring factory adjustment with Indigo80 handheld indicator
• Probe connection cable
If needed, you can restore the factory adjustment for your probe using the Indigo80 handheld
indicator.
Note that restoring the factory adjustment is not necessary before a new adjustment: you can
just perform the new adjustment on top of the old adjustment. However, you can select to do
the restore procedure if your adjustment fails for some reason, or if you want to return to the
original factory adjustment.
1. Connect the probe(s) to the indicator.
2. Open the main menu by pressing
3. Select Devices. If you have more than one device connected to the indicator, make a
further selection between the devices.
4. Select Calibrate / Adjust.
5. Select any of the available parameters to access the view where you can restore the
factory adjustment.
6. Scroll down and select Restore factory adjustment > OK.
7. Confirm by selecting OK.
8. Press
to end calibration.
.
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HMP80 Series User Guide M212903EN-A
7.4 Adjusting measurement with Insight software
• Computer with a Microsoft Windowsâ operating system (64-bit version) and
Vaisala Insight PC software installed
• Indigo USB adapter (item code USB2) or USB connection cable (item code
242659)
• Reference environment(s) for producing the desired humidity and/or
temperature
This procedure can be used to adjust the probe's humidity or temperature measurement. If you
want to adjust both, repeat the procedure.
Because stabilization of temperature and humidity takes time, you should expect the
adjustment procedure to take at least 30 minutes for each adjustment point.
1. Connect the probe to the Insight software.
2. If you intend to adjust humidity measurement, first select > Sensor purge to perform
sensor purge to condition the sensor. Wait a few minutes for purge to complete.
3. Select
In calibration mode, the device will not use functions that may interfere with calibration
and adjustment.
4. Select the type of adjustment to perform: RH adjustment or T adjustment.
5. Define the needed adjustment for the first measurement point:
6. If you want to adjust in more than one point, repeat the previous step for all desired
calibration points.
> Calibrate > Yes to switch the probe to calibration mode.
a. Insert the probe head in the reference environment for the first calibration point.
b. Wait for the measurement to stabilize fully. This may take more than 30 minutes.
Monitor the readings to see when both the RH and temperature measurements have
stabilized.
c. Click the Reference value, point 1 text box and enter the reference value of the
calibration point. Press ENTER or click outside the text box when done.
d. The probe automatically enters the measured values for the calibration point.
You can adjust humidity measurement in up to five points when Insight is set
to Advanced mode.
7. Check the dierence between each reference and measured value. Very large dierences
may be due to insucient stabilization time or unsuitable calibration setup.
• To save the adjustment into the device, select Activate adjustment.
• To exit without taking the adjustment in use, select Close.
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Chapter 7 – Calibration and adjustment
8. Check the message that appears at the top of the screen. If the message indicates that
the adjustment is activated successfully, your adjustment is stored in the probe.
9. Select the Calibration information tab and update the Calibration date and Calibration
text.
10. Select Close to exit the calibration mode.
7.5 HMK15 Humidity Calibrator with HMP80 series probes
CAUTION!
filter is removed. Handle the probe carefully and avoid touching the sensors.
Vaisala HMK15 Humidity Calibrator is a suitable humidity reference for HMP80 series probes.
When preparing the salt solutions and using the calibrator, follow the general instructions in
the HMK15 User Guide (M210185EN) to avoid common sources of calibration error.
HMP80 series specific considerations:
HMP80L probe model
• Use calibration adapter 211302 to prevent the sensor from being submerged in the salt
solution. Adapter 211302 is delivered with the HMK15 calibrator.
• With the filter removed and the adapter attached, place the probe in one of the
Ø13.5 mm holes in the HMK15 universal lid.
• Make sure the probe is well supported when using it with the HMK15 calibrator.
HMP80N probe model
• The sensor in the HMP80N is short, so a calibration adapter is not needed.
• With the filter removed, place the probe in the Ø12 mm hole in the HMK15 universal lid.
Sensors on the probe head are vulnerable to damage when the
Figure 12 Calibrating a humidity probe with HMK15 using 211302 adapter
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HMP80 Series User Guide M212903EN-A
8. Maintenance
8.1 Cleaning the probe
Do not attempt to clean the sensors under the filter.CAUTION!
Do not spray anything directly on the probe head, since that may deposit
impurities on the sensors.
You can clean the probe, probe handle, and cable by wiping them with a soft, lint-free cloth
moistened with water or a suitable cleaning agent, such as isopropyl alcohol. Do not wipe the
filter: wiping the filter may block its pores and/or deposit residue on the filter. If the filter is
heavily contaminated, replace it.
When cleaning, follow these precautions:
• Avoid touching the filter. If you need to touch the filter, always wear clean gloves (cotton,
rubber or similar material). Keep the filter free of any grease or oil.
• Do not scrape the probe or the probe handle, and avoid abrasive cloths when wiping the
surface.
• Do not immerse the probe or the probe handle in liquid to clean them.
• Wipe cleaning agents o the probe, probe handle, and the cable after cleaning.
After cleaning the probe, it is recommended to perform sensor purge.
8.1.1 Chemical tolerance
Avoid exposing the probe to cleaning agents for unnecessarily long periods of
time.
The following chemicals can be used to clean the probe:
• Deionized water
• Isopropyl alcohol (70 %).
More information
‣
HMP80 specifications (page 42)
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8.2 Changing the probe filter
• New compatible filter
• Clean lint-free gloves
Chapter 8 – Maintenance
CAUTION!
the probe head carefully.
1. Put on clean gloves before touching the filter.
2. Turn the filter counter-clockwise to loosen it.
3. Remove the filter from the probe head. Be careful not to touch the sensors with the filter.
4. Install a new filter on the probe head. Tighten the filter properly.
Sensors are easily damaged when the filter is not in place. Handle
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HMP80 Series User Guide M212903EN-A
9. Troubleshooting
9.1 Problem situations
Table 5 Troubleshooting table
Problem Possible cause Solution
Measurement output seems
incorrect
Values of measurement
parameters stop changing for a
few minutes
Installation location is not
representative of actual
conditions you want to
measure
Heat conduction along probe
shaft is interfering with
measurement accuracy
Probe is in need of adjustment Calibrate and adjust the probe.
Probe is performing a sensor
heating function such as sensor
purge or waiting for the sensor
to cool down
Verify the installation location
and relocate the probe if
necessary.
Follow the installation
recommendations for cases
when temperature of measured
environment diers greatly
from ambient. See
Measurement location
(page 21).
Wait for the function to
complete and measurement
parameters to be available
again.
9.2 Error messages
Probes can communicate with error messages when they are connected to Indigo80 indicator
or Insight software. The messages are categorized according to the severity of the status:
• Critical errors are fatal to the operation of the device. It may not be able to respond to
communication at all, and will not measure correctly.
• Errors prevent normal operation of the device. Depending on the problem, errors may
resolve themselves. For example, a completely wet humidity sensor may cause a humidity
measurement error.
• Warnings do not prevent normal operation but may indicate possible problems.
• Status indicates a known state of the device.
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Chapter 9 – Troubleshooting
Error message Description Recommended action
Critical errors
Firmware checksum mismatch
[49]
The installed firmware is
corrupted.
Contact Vaisala technical
support.
Device settings corrupted [50] Parameter memory is
Additional configuration
corrupted.
settings corrupted [51]
Sensor coecients corrupted
[52]
Main configuration settings
corrupted [53]
Factory default settings
corrupted [54]
Non-volatile memory read
Hardware fault.
write failure [57]
Errors
Temperature measurement
error [44]
Humidity measurement error
[45]
Humidity sensor failure [46]
Readings from sensor(s) are
missing or out of range.
Inspect probe head and
sensors visually. If the probe is
completely wet, allow it to dry
out.
If the sensors are damaged or
missing and the error
message(s) stay active, contact
Vaisala to have the probe
repaired.
Capacitance reference error
[47]
Hardware fault. Contact Vaisala technical
support.
Sensor heater error [212]
General device failure [994] High number of measurement
errors, capacitance reference
errors, or sensor heater errors
written in the error log.
Ambient temperature out of
range [48]
Probe handle is too hot or cold. Relocate the probe handle so
that its ambient temperature is
within the specified operating
range.
Supply voltage out of range
[55]
Probe supply voltage is too
high or low.
Check and correct the supply
voltage.
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HMP80 Series User Guide M212903EN-A
Warnings
Calibration has expired [353] This warning is displayed by
Software restart [679] The probe has automatically
Unexpected device restart
[216]
Status messages
Calibration is about to expire
[352]
Purge in progress [287] Sensor purge of the humidity
The readings stay frozen until
the sensor cools down [288]
More information
‣
Technical support (page 51)
9.3
Restoring factory default settings with Insight
the calibration reminder
functionality if the calibration
interval has been exceeded.
restarted itself.
This message is displayed by
the calibration reminder
functionality.
sensor is ongoing.
Probe is waiting for its sensors
to cool down.
Calibrate the probe and update
the calibration date
information.
Check that supply voltage is
stable and operating
environment is within
specification.
Calibrate the probe and update
the calibration date
information.
Wait for sensor purge to
complete.
Wait for measurement readings
to become available.
software
If needed, you can restore the probe back to its factory default settings using the Insight
software. Doing this will also clear any user adjustment and restore the latest adjustment
performed by Vaisala.
1. Connect the probe to the Insight software.
2. Select
> Factory default settings > Restore settings.
3. Wait for the probe to be re-detected.
More information
‣
Configuration options (page 27)
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Chapter 9 – Troubleshooting
9.4 Restoring factory default settings with Indigo80 handheld indicator
• Probe connection cable
If needed, you can restore the probe back to its factory default settings using the Indigo80
handheld indicator. The user adjustment of the probe and the settings or log files of the
indicator itself are not aected.
1. Connect the probe(s) to the indicator.
2. Open the main menu by pressing
3. Select Devices. If you have more than one device connected to the indicator, make a
further selection between the devices.
4. Select Factory default settings > Restore settings > OK.
5. Confirm by selecting OK.
6. Exit the menu by pressing
9.5
Writing a problem report
When troubleshooting the product, write a problem report including:
• What failed (what worked / did not work)?
• Where did it fail (location and environment)?
• When did it fail (date, immediately / after a while / periodically / randomly)?
• How many failed (only one defect / other same or similar defects / several failures in one
unit)?
• What was done when the failure was noticed?
• What was connected to the product and to which connectors?
• Input power source type, voltage, and list of other items (such as lighting, heaters, and
motors) that were connected to the same power output.
• Are all parts connected and grounded properly? Take a photo to help the troubleshooting.
.
or return to the main menu by pressing .
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10. Technical data
10.1 HMP80 specifications
Table 6 HMP80 series measurement performance
Property Description/Value
Relative humidity
Measurement range 0 … 100 %RH
Accuracy at +23 °C (73.4 °F)
Factory calibration uncertainty
T63 response time 15 s
Sensor HUMICAPâ R2C
Temperature
Measurement range HMP80N: −20 … +60 °C (−4 … +140 °F)
Accuracy at +23 °C (+73.4 °F) 1)
Factory calibration uncertainty
Sensor Pt100 RTD Class F0.1 IEC 60751
1)
2)
3)
2)
±0.8 %RH (0 … 90 %RH)
±0.5 %RH (0 … 40 %RH)
±0.8 %RH (40 … 95 %RH)
HMP80L: −50 … +120 °C (−58 … +248 °F), shorttime measurement range
−50 … +180 °C (−58 … +356 °F)
±0.1 °C (±0.18 °F)
±0.1 °C (±0.18 °F) at +23 °C (+73.4 °F)
1) Defined against calibration reference. Including non-linearity, hysteresis, and repeatability.
2) Defined as ±2 standard deviation limits. Small variations possible; see calibration certificate.
3) Exposing temperature sensor to temperatures below −20 °C (−4 °F) may cause permanent
additional deviation of ±0.1 °C (0.18 °F).
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0.0
0.5
1.0
1.5
2.0
2.5
3.0
-20
-10
0
10
20
30
40
50
60
Accuracy [± %RH]
Temperature [
°
C]
3.5
4.0
90 ... 100 %RH
0 ... 90 %RH
Figure 13 HMP80N humidity measurement
0
0.1
0.2
0.3
0.4
-20
-10
0
10
20
30
40
50
60
Temperature [
°
C]
Accuracy [±
°C]
0.0
0.5
1.0
1.5
2.0
2.5
3.0
Accuracy [± %RH]
Temperature [
°
C]
3.5
4.0
-40
-30
-20
-10
0
10
20
30
40
50
60
70
80
90
100
110
120
90 ... 100 %RH
0 ... 90 %RH
0
0.1
0.2
0.3
0.4
Accuracy [±
°C]
Temperature [°C]
-40
-30
-20
-10
0
10
20
30
40
50
60
70
80
90
100
110
120
-50
accuracy as a function of temperature
Figure 15 HMP80L humidity measurement
accuracy as a function of temperature
Table 7 HMP80 series operating environment
Chapter 10 – Technical data
Figure 14 HMP80N temperature measurement
accuracy over full range
Figure 16 HMP80L temperature measurement
accuracy over full range
Property Description/Value
Operating temperature of probe body −10 … +60 °C (−14 … +140 °F)
Operating temperature of probe head HMP80N: −20 … +60 °C (−4 … +140 °F)
HMP80L: −50 … +120 °C (−58 … +248 °F)
Storage temperature −20 … +60 °C (−4 … +140 °F)
Measurement environment For air, nitrogen, hydrogen, argon, helium,
oxygen, and vacuum
1)
Chemical tolerance Temporary exposure during cleaning:
• Deionized water
• Isopropyl alcohol (70 %)
IP rating of probe handle:
with probe connection cable connected to the
probe
IP66: Dust-tight. Protected from powerful water
jets from any direction.
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HMP80 Series User Guide M212903EN-A
Property Description/Value
without cable IP55: Limited protection against dust. Protected
from water jets from any direction.
1) Consult Vaisala if other chemicals are present. Consider safety regulations with flammable
gases.
Table 8 HMP80 series inputs and outputs
Property Description/Value
Operating voltage 15 … 30 V DC
Current consumption 10 mA typical, 500 mA max.
Digital output RS-485, non-isolated
Table 9 HMP80 series output parameters
Output parameter name and unit
Absolute humidity (g/m3)
Absolute humidity at NTP (g/m3)
Relative humidity (%RH)
Relative humidity (dew/frost) (%RH)
Dew point temperature (°C) Temperature (°C)
Dew/frost point temperature (°C) Water concentration (ppmv)
Dew/frost point temperature at 1 atm (°C) Water concentration (wet basis) (vol‑%)
Dew point temperature at 1 atm (°C) Water mass fraction (ppmw)
Dew point temperature dierence (°C) Water vapor pressure (hPa)
Enthalpy (kJ/kg) Water vapor saturation pressure (hPa)
Mixing ratio (g/kg) Wet-bulb temperature (°C)
Table 10 HMP80 series mechanical specifications
Property Description/Value
Connector type M12 5-pin A-coded male
Weight HMP80N: 200 g (7 oz)
HMP80L: 300 g (10 oz)
Materials
Probe handle Polyamide (PA) and thermoplastic elastomer
(TPE)
Probe shaft Stainless steel (AISI 316L)
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103 [4.1] 83 [3.3]
23
63 [2.5]
272 [11]
[0.91]
25
47 [1.9]
[0.98]
12 [0.5]
mm [in]
103 [4.1] 278 [11]
41
63 [2.5]
485 [19]
[1.6]
12 [0.5]
Chapter 10 – Technical data
Property Description/Value
Filters
HMP80N: Stainless steel (AISI 316L)
HMP80L: Porous stainless steel (AISI 316L)
1) With holes and without an additional filter membrane. Vaisala item code of filter:
DRW255306SP.
2) Vaisala item code: HM47280SP
Table 11 HMP80 series compliance
Property Description/Value
EU directives and regulations EMC Directive (2014/30/EU)
RoHS Directive (2011/65/EU) amended by
2015/863
Electromagnetic compatibility (EMC) EN 61326‑1, industrial environment
Rough handling
IEC 60068‑2‑31
(excluding sensor inside probe head)
Compliance marks CE, China RoHS, RCM, UKCA
10.2 Dimensions
1)
2)
Figure 17 Dimensions of HMP80L (top) and HMP80N (bottom), side and bottom view
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HMP80 Series User Guide M212903EN-A
10.3 Spare parts and accessories
Information on spare parts, accessories, and calibration products is available
online at www.vaisala.com and store.vaisala.com.
Table 12 HMP80 series spare parts and accessories
Property Description/value
Probe connection cable (M12-M12), 1.5 m (4.11 ft) 272075SP
Flat cable for probes (M12-M12), 1.0 m (3.4 ft) CBL210493SP
Indigo USB adapter USB2
Sintered stainless steel filter (HMP80N, HMP80L) HM47280SP
Plastic PPS grid filter (HMP80N, HMP80L) DRW010276SP
PPS grid with SS netting (HMP80N, HMP80L) DRW010281SP
Slotted MIM filter (HMP80N) DRW255306SP
Slotted MIM filter with membrane (HMP80N) ASM214606SP
10.4 Accuracy of calculated output parameters
HMP80 series probes measure relative humidity and temperature, and calculate the other
output parameters from those two parameters. Accuracy of the calculated parameters is
derived from the accuracy of the original RH and T measurements.
Use the Vaisala Humidity Calculator to convert the accuracy specification of RH measurement
for other humidity parameters. You can download it from www.vaisala.com.
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Chapter 10 – Technical data
Figure 18 Vaisala Humidity Calculator in Advanced mode
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Metal waste
Plastic
Electrical and
electronic waste
1
4
6
5
7
2
3
HMP80 Series User Guide M212903EN-A
Appendix A. Recycling instructions
These recycling instructions guide you on the end-of-life treatment of this Vaisala product. As
waste regulations and infrastructure vary in each country, these instructions only indicate the
dierent components to be separated and common ways to handle them. Always follow local
requirements when disposing of the product. Vaisala encourages to use the best available
recycling practices to minimize related environmental impacts.
Vaisala is committed to meeting the requirements of the EU Waste Electrical and
Electronic Equipment (WEEE) Directive. This directive aims to minimize the
impact of electrical and electronic goods on the environment, by increasing reuse
and recycling, and reducing the amount of WEEE going to landfill. This symbol
indicates that the product should be collected separately from other waste
streams and treated appropriately.
Figure 19 Materials for recycling
Table 13 Materials for recycling
Part Material Recycling
1 Filter Stainless steel (AISI 316L) Metal waste
2 Sensor Various materials Electrical and electronic
waste
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Appendix A – Recycling instructions
Part Material Recycling
3 Probe shaft Stainless steel (AISI 316L) Metal waste
4 Probe handle Polyamide (PA), glass reinforced
5 Electronics
6 Screw Stainless steel (AISI 316L) Metal waste
7 Component board
More information
‣
‣
housing
and wiring
Probe structure (page 11)
HMP80 specifications (page 42)
and thermoplastic elastomer (TPE)
Polyamide (PA), glass reinforced Dispose of or recycle as
Various materials Electrical and electronic
Dispose of or recycle as
plastic according to local
waste management
practices and regulations
plastic according to local
waste management
practices and regulations
waste
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Maintenance and calibration services
Vaisala oers comprehensive customer care throughout the life cycle of our
measurement instruments and systems. Our factory services are provided
worldwide with fast deliveries. For more information, see www.vaisala.com/
calibration.
• Vaisala Online Store at store.vaisala.com is available for most countries. You
can browse the oering by product model and order the right accessories,
spare parts, or maintenance and calibration services.
• To contact your local maintenance and calibration expert, see
www.vaisala.com/contactus.
Warranty
For standard warranty terms and conditions, see www.vaisala.com/warranty.
Please observe that any such warranty may not be valid in case of damage due to normal wear
and tear, exceptional operating conditions, negligent handling or installation, or unauthorized
modifications. Please see the applicable supply contract or Conditions of Sale for details of the
warranty for each product.
Technical support
Contact Vaisala technical support at helpdesk@vaisala.com. Provide at least the
following supporting information as applicable:
• Product name, model, and serial number
• Software/Firmware version
• Name and location of the installation site
• Name and contact information of a technical person who can provide further
information on the problem
For more information, see www.vaisala.com/support.
Recycling
Recycle all applicable material according to local regulations.
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www.vaisala.com
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