Vaisala HMP80 Series User manual

M212903EN-A
User Guide
Vaisala Handheld Humidity
and Temperature Probes
HMP80 Series

PUBLISHED BY
Vaisala Oyj
Vanha Nurmijärventie 21, FI‑01670 Vantaa, Finland
P.O. Box 26, FI‑00421 Helsinki, Finland
[phone]
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.

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
Table of contents
3

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
HMP80 Series User Guide M212903EN-A
4

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
5

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
HMP80 Series User Guide M212903EN-A
6

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 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
7

Note highlights important information on using the product.
1.4 Trademarks
Vaisalaâand HUMICAPâare registered trademarks of Vaisala Oyj.
Microsoftâand Windowsâare 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.
HMP80 Series User Guide M212903EN-A
8

2. Product overview
Vaisala HUMICAPâHandheld 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 oering similar measurement
performance. The longer model (HMP80L) is designed for measurements in more extreme
temperatures.
The IP66-classified probe handle oers 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 HUMICAPâR2C, with
sensor purge and sensor warming functionality.
Table 3 HMP80N and HMP80L temperature ranges
Property HMP80N HMP80L
Relative humidity measurement
range
0 … 100 %RH
Temperature measurement
range
−20 … +60 °C (−4 … +140 °F) −50 … +120 °C (−58 … +248 °F),
short-time measurement range
−50 … +180 °C (−58 … +356 °F)
Chapter 2 – Product overview
9

Property HMP80N HMP80L
Operating temperature of
probe head
−20 … +60 °C (−4 … +140 °F) −50 … +120 °C (−58 … +248 °F)
Operating temperature of
probe body
−10 … +60 °C (−14 … +140 °F)
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.
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
Figure 1 HMP80N dimensions, side and bottom view
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
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)Relative humidity (%RH)
Absolute humidity at NTP (g/m3)Relative humidity (dew/frost) (%RH)
Dew point temperature (°C) Temperature (°C)
HMP80 Series User Guide M212903EN-A
10

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 dierence (°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
2
5
4
3
6
1
Figure 3 Probe parts (model HMP80N
shown)
1Protection cap (remove before use)
2Location of sensors on the probe head,
inside a removable filter 1)
3Probe shaft
4Probe handle with type label. Contains
component board and electronics
housing.
5M12-5M A-coded connector (inside the
probe handle)
6Detachable end piece of the probe
handle, protecting the cable connector
inside the handle
1) The HUMICAP â R2C sensor used in
HMP80 series probes is not user-
replaceable. To have the sensor replaced,
contact a Vaisala Service Center.
Chapter 2 – Product overview
11

More information
‣Recycling instructions (page 48)
‣Maintenance and calibration services (page 51)
2.5 Safety
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!
Do not attempt to open the solid part of the probe handle. There
are no user serviceable parts inside the probe handle.
CAUTION!
Do not touch the probe head with your bare hands. Touching will
deposit impurities on the probe head.
CAUTION!
Be aware that the probe head may become hot to touch when
condensation prevention warming or sensor purge functions are active.
CAUTION!
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.
HMP80 Series User Guide M212903EN-A
12

3. Functional description
3.1 HUMICAP technology
Vaisala HUMICAPâis 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).
Chapter 3 – Functional description
13

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 aects 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 diering 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.
HMP80 Series User Guide M212903EN-A
14

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 eect 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)
Chapter 3 – Functional description
15

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.
HMP80 Series User Guide M212903EN-A
16

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.
Chapter 4 – Attaching cable to probe
17

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 button.
For more information on using the indicator, for example, editing the measurement views and
performing data logging, see Indigo80 User Guide (M212722EN).
HMP80 Series User Guide M212903EN-A
18

5.1.1 Indigo80 keypad
13
2
Figure 5 Indigo80 keypad
1Power on/o and main menu button
2Arrow buttons for navigating menus
and scrolling views
3Select 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.
1
1
2
3
4
5
Figure 6 Indigo80 main menu
1Devices menu contains, for example,
options related to sensor purge,
calibration, and environment settings
(depending on the connected device).
2Data logging menu for setting logging
interval and duration, and browsing
data files.
3Notifications menu displays
notifications related to Indigo80 and
the connected devices.
4Indigo80 menu for changing the
settings of Indigo80 (for example,
date, time, and language) and viewing
device information.
5Help 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.
Chapter 5 – Using probe with Indigo80 handheld indicator
19

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.
1 1
2
3
4
5
Figure 7 Connecting probes to Indigo80
1M12-5F ports on the bottom of Indigo80 for connecting compatible Vaisala devices.
Ports are labeled and .
2M12-5M A-coded cable connector
3M12-5F A-coded cable connector
4HMP80 probe, displayed as by Indigo80
5HMP7 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.
HMP80 Series User Guide M212903EN-A
20