M212022EN-F
User Guide
Vaisala Indigo compatible
humidity and temperature probes
HMP Series with MMP8 and TMP1
PUBLISHED BY
Vaisala Oyj
Vanha Nurmijärventie 21, FI-01670 Vantaa, Finland
P.O. Box 26, FI-00421 Helsinki, Finland
+358 9 8949 1
Visit our Internet pages at www.vaisala.com.
© Vaisala 2021
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.
Table of contents
Table of contents
1. About this document.....................................................................................9
1.1 Version information..........................................................................................9
1.2 Related manuals..............................................................................................10
1.3 Documentation conventions..........................................................................10
1.4 Trademarks........................................................................................................11
2. Product overview...........................................................................................12
2.1 Probe structure................................................................................................12
2.2 Basic features and options............................................................................. 12
2.3 Output parameters..........................................................................................13
2.4 Additional features with Indigo transmitters...............................................14
2.5 Safety................................................................................................................ 15
2.6 ESD protection.................................................................................................15
2.7 Regulatory statements................................................................................... 15
2.7.1 FCC Part 15 compliance statement........................................................ 15
2.7.2 Canada ICES-003 compliance statement............................................. 16
3. Functional description.................................................................................17
3.1 HUMICAP technology......................................................................................17
3.2 Chemical purge................................................................................................17
3.3 Condensation prevention functions.............................................................. 18
4. Installation.......................................................................................................20
4.1 Probe holder ASM213582................................................................................21
4.1.1 Mounting the probe body using probe holder ASM213582................ 21
4.2 Wiring...............................................................................................................22
4.3 HMP1 probe......................................................................................................23
4.4 HMP3 probe.....................................................................................................24
4.5 HMP4 probe.................................................................................................... 25
4.6 HMP5 probe.....................................................................................................26
4.7 HMP7 probe..................................................................................................... 27
4.8 HMP8 probe.................................................................................................... 29
4.8.1 Attaching ball valve kit to process........................................................30
4.9 HMP9 probe......................................................................................................31
4.9.1 Installing HMP9 through a cable gland.................................................32
4.9.2 Overview of HMP9 Duct Installation Kit............................................... 33
4.9.3 Mounting HMP9 probe head with Duct Installation Kit......................34
4.10 MMP8 probe.................................................................................................... 36
4.11 TMP1 probe......................................................................................................37
4.12 DTR502B solar radiation shield.....................................................................37
4.12.1 Mounting probe head inside DTR502B................................................ 38
5. Configuration with Insight software......................................................41
5.1 Vaisala Insight software..................................................................................41
5.2 Connecting to Insight software.....................................................................41
5.3 Configuration options....................................................................................42
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HMP Series with MMP8 and TMP1 User Guide M212022EN-F
5.4 Configuring condensation prevention.........................................................42
5.5 Diagnostics in Insight.....................................................................................43
6. Using probe with Indigo transmitters..................................................45
6.1 Indigo200 series transmitters...................................................................... 45
6.1.1 Attaching probe to Indigo200 series transmitter............................... 47
6.2 Indigo500 series transmitters...................................................................... 48
7. Maintenance....................................................................................................49
7.1 Cleaning the probe.........................................................................................49
7.1.1 Chemical tolerance................................................................................. 49
7.2 Changing the probe filter..............................................................................50
7.3 Replacing the HUMICAPâ R2 sensor.......................................................... 50
7.4 Calibration and adjustment........................................................................... 52
7.4.1 Adjustment points and requirements...................................................53
7.4.2 HMK15 Humidity Calibrator with HMP Series probes .........................53
7.4.3 Adjusting measurement with Insight software................................... 55
7.4.4 Adjusting measurement with Indigo200 series transmitter..............56
8. Troubleshooting............................................................................................. 61
8.1 Problem situations...........................................................................................61
8.2 Error messages................................................................................................61
8.3 Restoring factory default settings................................................................63
9. Technical data................................................................................................64
9.1 HMP1 specifications........................................................................................64
9.2 HMP3 specifications....................................................................................... 67
9.3 HMP4 specifications....................................................................................... 70
9.4 HMP5 specifications....................................................................................... 74
9.5 HMP7 specifications....................................................................................... 77
9.6 HMP8 specifications........................................................................................ 81
9.7 HMP9 specifications....................................................................................... 85
9.8 MMP8 specifications...................................................................................... 89
9.9 TMP1 specifications......................................................................................... 91
9.10 Accessories and spare parts......................................................................... 94
Appendix A:
Modbus reference..................................................................99
A.1 Default communication settings.................................................................. 99
A.2 Function codes...............................................................................................99
A.3 Data encoding................................................................................................ 99
A.3.1 32-bit floating point or 32-bit integer format................................... 100
A.3.2 16-bit integer format.............................................................................100
A.4 Modbus registers........................................................................................... 101
A.4.1 Measurement data registers..................................................................101
A.4.2 Configuration registers.........................................................................104
A.4.3 Status registers...................................................................................... 107
A.4.4 Test value registers................................................................................108
A.5 Device identification objects.......................................................................108
2
Table of contents
A.6 Exception responses....................................................................................109
A.7 Modbus communication examples..............................................................110
Maintenance and calibration services........................................................113
Warranty........................................................................................................... 113
Technical support........................................................................................... 113
Recycling...........................................................................................................113
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HMP Series with MMP8 and TMP1 User Guide M212022EN-F
List of figures
Figure 1 Probe parts........................................................................................................12
Figure 2 Example installation.......................................................................................20
Figure 3 Probe holder ASM213582 dimensions........................................................21
Figure 4 M12 5-pin A-coded male connector pinout............................................. 22
Figure 5 RS-485 wiring.................................................................................................. 23
Figure 6 HMP1 probe dimensions................................................................................23
Figure 7 HMP3 probe dimensions...............................................................................24
Figure 8 HMP4 probe dimensions...............................................................................25
Figure 9 HMP5 probe dimensions...............................................................................26
Figure 10 Optional mounting flange 210696 dimensions...................................... 26
Figure 11 HMP7 probe dimensions...............................................................................27
Figure 12 HMP8 probe dimensions...............................................................................29
Figure 13 HMP9 probe dimensions................................................................................31
Figure 14 Installing HMP9 probe head through a cable gland..............................32
Figure 15 Duct Installation Kit ASM214055 dimensions......................................... 33
Figure 16 Duct installation overview............................................................................34
Figure 17 MMP8 dimensions...........................................................................................36
Figure 18 TMP1 probe dimensions.................................................................................37
Figure 19 DTR502B dimensions.................................................................................... 38
Figure 20 Mounting DTR502B on a pole mast...........................................................39
Figure 21 HMP9 probe head with sensor head support 215130...........................40
Figure 22 Connecting probe to Insight using Indigo USB adapter.......................41
Figure 23 HMP5 in Insight software..............................................................................42
Figure 24 HMP5 diagnostics in Insight (advanced mode)..................................... 44
Figure 25 Probe attached to Indigo200 series transmitter directly....................45
Figure 26 Probe attached to Indigo200 series transmitter with a cable...........46
Figure 27 Attaching the probe to Indigo200 series transmitter.......................... 47
Figure 28 Attaching probes to Indigo500 transmitter........................................... 48
Figure 29 HMP3 probe head with filter removed.......................................................51
Figure 30 HMP5 calibration with HMK15 using 211302SP adapter.......................54
Figure 31 Using HMP9 calibration adapter with HMK15......................................... 55
Figure 32 Calibration page in the Indigo200 wireless
configuration interface..................................................................................59
Figure 33 HMP1 humidity measurement accuracy as a function of
Figure 34 HMP1 temperature measurement accuracy over full range................ 65
Figure 35 HMP1 probe dimensions................................................................................66
Figure 36 HMP3 humidity measurement accuracy as a function of
Figure 37 HMP3 temperature measurement accuracy over full range............... 68
Figure 38 HMP3 probe dimensions...............................................................................70
Figure 39 HMP4 humidity measurement accuracy as a function of
Figure 40 HMP4 temperature measurement accuracy over full range................ 71
Figure 41 HMP4 probe dimensions...............................................................................73
temperature.....................................................................................................64
temperature..................................................................................................... 68
temperature.......................................................................................................71
4
Figure 42 HMP5 humidity measurement accuracy as a function of
temperature......................................................................................................75
Figure 43 HMP5 temperature measurement accuracy over full range................75
Figure 44 HMP5 probe dimensions...............................................................................77
Figure 45 HMP7 humidity measurement accuracy as function of
temperature......................................................................................................78
Figure 46 HMP7 temperature measurement accuracy over full range............... 79
Figure 47 HMP7 probe dimensions................................................................................81
Figure 48 HMP8 humidity measurement accuracy as a function of
temperature......................................................................................................82
Figure 49 HMP8 temperature measurement accuracy over full range............... 82
Figure 50 HMP8 probe dimensions...............................................................................84
Figure 51 Optional ball valve installation kit dimensions.......................................85
Figure 52 HMP9 humidity measurement accuracy as a function of
temperature..................................................................................................... 86
Figure 53 HMP9 temperature measurement accuracy over full range...............86
Figure 54 HMP9 probe dimensions...............................................................................88
Figure 55 MMP8 Aw measurement accuracy............................................................. 89
Figure 56 MMP8 dimensions............................................................................................91
Figure 57 TMP1 temperature measurement accuracy over full range.................92
Figure 58 TMP1 probe dimensions................................................................................94
Figure 59 Optional duct kit 215003 dimensions....................................................... 94
List of figures
5
HMP Series with MMP8 and TMP1 User Guide M212022EN-F
List of tables
Table 1 Document versions (English)...........................................................................9
Table 2 Related manuals................................................................................................ 10
Table 3 Availability of output parameters..................................................................13
Table 4 Suitability of cleaning agents........................................................................49
Table 5 Troubleshooting table...................................................................................... 61
Table 6 HMP1 measurement performance................................................................64
Table 7 HMP1 operating environment........................................................................65
Table 8 HMP1 inputs and outputs................................................................................ 65
Table 9 HMP1 output parameters................................................................................ 65
Table 10 HMP1 compliance..............................................................................................66
Table 11 HMP1 mechanical specifications...................................................................66
Table 12 HMP3 measurement performance............................................................... 67
Table 13 HMP3 operating environment.......................................................................68
Table 14 HMP3 inputs and outputs...............................................................................69
Table 15 HMP3 output parameters............................................................................... 69
Table 16 HMP3 compliance............................................................................................. 69
Table 17 HMP3 mechanical specifications.................................................................. 69
Table 18 HMP4 measurement performance...............................................................70
Table 19 HMP4 operating environment....................................................................... 72
Table 20 HMP4 inputs and outputs............................................................................... 72
Table 21 HMP4 output parameters............................................................................... 72
Table 22 HMP4 compliance............................................................................................. 73
Table 23 HMP4 mechanical specifications.................................................................. 73
Table 24 HMP5 measurement performance............................................................... 74
Table 25 HMP5 operating environment....................................................................... 75
Table 26 HMP5 inputs and outputs............................................................................... 76
Table 27 HMP5 output parameters............................................................................... 76
Table 28 HMP5 compliance............................................................................................. 76
Table 29 HMP5 mechanical specifications.................................................................. 76
Table 30 HMP7 measurement performance............................................................... 77
Table 31 HMP7 operating environment....................................................................... 79
Table 32 HMP7 inputs and outputs............................................................................... 79
Table 33 HMP7 output parameters............................................................................... 79
Table 34 HMP7 compliance.............................................................................................80
Table 35 HMP7 mechanical specifications..................................................................80
Table 36 HMP8 measurement performance................................................................81
Table 37 HMP8 operating environment.......................................................................83
Table 38 HMP8 inputs and outputs............................................................................... 83
Table 39 HMP8 output parameters............................................................................... 83
Table 40 HMP8 compliance.............................................................................................84
Table 41 HMP8 mechanical specifications..................................................................84
Table 42 HMP9 measurement performance...............................................................85
Table 43 HMP9 operating environment.......................................................................86
Table 44 HMP9 inputs and outputs............................................................................... 87
Table 45 HMP9 output parameters............................................................................... 87
6
Table 46 HMP9 compliance............................................................................................. 87
Table 47 HMP9 mechanical specifications..................................................................88
Table 48 MMP8 measurement performance.............................................................. 89
Table 49 MMP8 operating environment.......................................................................89
Table 50 MMP8 inputs and outputs.............................................................................. 90
Table 51 MMP8 compliance............................................................................................ 90
Table 52 MMP8 mechanical specifications................................................................. 90
Table 53 TMP1 measurement performance................................................................. 91
Table 54 TMP1 operating environment.........................................................................92
Table 55 TMP1 inputs and outputs.................................................................................92
Table 56 TMP1 compliance...............................................................................................93
Table 57 TMP1 mechanical specifications....................................................................93
Table 58 Connection cables............................................................................................ 95
Table 59 HMP3 accessories............................................................................................. 95
Table 60 HMP3 spare parts..............................................................................................95
Table 61 HMP4 spare parts............................................................................................. 96
Table 62 HMP5 accessories............................................................................................. 96
Table 63 HMP5 spare parts..............................................................................................96
Table 64 HMP7 accessories............................................................................................. 96
Table 65 HMP7 spare parts..............................................................................................97
Table 66 HMP8 accessories............................................................................................. 97
Table 67 HMP8 spare parts..............................................................................................97
Table 68 HMP9 accessories............................................................................................. 97
Table 69 MMP8 accessories.............................................................................................98
Table 70 MMP8 spare parts............................................................................................. 98
Table 71 TMP1 accessories...............................................................................................98
Table 72 Default Modbus serial communication settings.......................................99
Table 73 Modbus function codes...................................................................................99
Table 74 Interpretation of 16-bit signed integer values........................................ 100
Table 75 Floating point measurement data registers (read-only)...................... 101
Table 76 Integer measurement data registers (read-only).................................. 103
Table 77 Modbus configuration data registers (writable).................................... 104
Table 78 Modbus status data registers (read-only)................................................107
Table 79 Error codes in register 0203
................................................................... 108
hex
Table 80 Modbus test registers (read-only)..............................................................108
Table 81 Device identification objects....................................................................... 108
Table 82 Modbus exception responses......................................................................109
List of tables
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HMP Series with MMP8 and TMP1 User Guide M212022EN-F
8
Chapter 1 – About this document
1. About this document
1.1 Version information
This document provides instructions for installing, using, and maintaining Vaisala HUMICAPâ
Humidity and Temperature Probes HMP1, HMP3, HMP4, HMP5, HMP7, HMP8, HMP9, Moisture in
Oil Probe MMP8, and Temperature Probe TMP1.
Table 1 Document versions (English)
Document code Date Description
M212022EN-F March 2021 Applicable from software version 1.2.0 onward. Added
content for HMP1 probe model and updated technical data
for all models.
Added sections:
• HUMICAP technology (page 17)
• Chemical purge (page 17)
• Condensation prevention functions (page 18)
• Mounting the probe body using probe holder
ASM213582 (page 21)
• Configuring condensation prevention (page 42)
• HMK15 Humidity Calibrator with HMP Series probes
(page 53)
Updated sections:
• Product overview (page 12)
• Probe structure (page 12)
• Output parameters (page 13)
• Installation (page 20)
• HMP7 probe (page 27)
• Indigo200 series transmitters (page 45)
• Indigo500 series transmitters (page 48)
• Vaisala Insight software (page 41)
• Problem situations (page 61)
• Restoring factory default settings (page 63)
• Measurement data registers (page 101)
• Configuration registers (page 104)
• Status registers (page 107)
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HMP Series with MMP8 and TMP1 User Guide M212022EN-F
Document code Date Description
M212022EN-E June 2020 Added sections:
• DTR502B solar radiation shield (page 37)
• Mounting probe head inside DTR502B (page 38)
• Diagnostics in Insight (page 43)
• Indigo500 series transmitters (page 48)
• Exception responses (page 109)
• Maintenance and calibration services (page 113)
Updated sections:
• Additional features with Indigo transmitters (page 14)
• Using probe with Indigo transmitters (page 45)
• Corrected CRC values in section Modbus communication
examples (page 110)
M212022EN-D March 2020 Added content for HMP3 and MMP8 probe models.
1.2 Related manuals
Table 2 Related manuals
Document code Name
M211982EN HMP Series with MMP8 and TMP1 Quick Guide
M211877EN Indigo201 Analog Output Transmitter User Guide
M211966EN Indigo202 Digital Transmitter User Guide
M212287EN Indigo520 Transmitter 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.
10
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
Chapter 1 – About this document
Note highlights important information on using the product.
Tip gives information for using the product more eciently.
Lists tools needed to perform the task.
Indicates that you need to take some notes during the task.
1.4 Trademarks
Vaisalaâ and HUMICAPâ are registered trademarks of Vaisala Oyj.
Modbusâ is a registered trademark of Schneider Automation Inc.
All other product or company names that may be mentioned in this publication are trade
names, trademarks, or registered trademarks of their respective owners.
11
1
2
3
4
5
6
7
8
HMP Series with MMP8 and TMP1 User Guide M212022EN-F
2. Product overview
HMP series probes are humidity and temperature measurement probes with a digital output
(Modbusâ protocol). The probes are designed for demanding humidity and temperature
measurement applications. The probes have a two-part structure, with measurement
electronics contained in the probe body and sensor(s) in the probe head. The probe body and
the probe head are connected by a cable, except on the HMP1 model. Length options for this
connecting cable depend on the probe model.
The probes are compatible with Vaisala Indigo transmitters. They can also be connected to
Vaisala Insight software for configuration, calibration, adjustment, diagnostics, and temporary
online monitoring.
2.1 Probe structure
Figure 1 Probe parts
1 Protection cap (remove before use)
2 5-pin M12 connector
3 Probe body with type label
4 Status indicator LED:
Green Power on and probe online,
Red Error
O Power o, or indicator
5 Probe cable. HMP1 model does not
have a probe cable, as its probe head
is directly attached to the probe body.
6 Probe head (HMP7 model shown)
7 Location of sensor(s) on the probe
head. Other probe models have a
removable filter over the sensors but
HMP1, HMP9, and TMP1 do not.
8 Protection cap (remove before use)
flashes when communicating
disabled
To prevent the warming of the indicator LED from causing a slight measurement
2.2 Basic features and options
12
error, HMP1 keeps the indicator normally o (even when power is on). If the probe
is in error state, the red LED is shown.
• Comprehensive list of output parameters. See Output parameters (page 13).
Chapter 2 – Product overview
• Sensor purge provides superior chemical resistance (HMP models only)
• Condensation prevention feature minimizes condensation on probe (HMP models with
composite sensors only)
• Traceable calibration certificate:
• HMP and MMP models: 6 points for humidity, 1 point for temperature
• TMP1: 2 points for temperature
• Standalone Modbusâ RTU over RS-485
• Compatible with Indigo series of transmitters
• Can be connected to Vaisala Insight PC software for configuration, calibration,
diagnostics, and temporary online monitoring
2.3 Output parameters
On HMP probe models, the values of all available output parameters are locked
when the sensor is being warmed by the chemical purge function.
Output parameter is available on this model.
Output parameter is available on this model, but its value is unavailable when
condensation prevention functions are warming the sensor. Writing temperature to
Modbus register 0334
condensation prevention.
Output parameter is not available on this model.
Table 3 Availability of output parameters
from an external source makes the output value available during
hex
Output parameter Output unit HMP1, 3, 4, 5,
Absolute humidity
Absolute humidity at NTP
Dew/frost point temperature °C
Dew/frost point temperature at 1 atm °C
Dew point temperature °C
Dew point temperature at 1 atm °C
Dew point temperature dierence °C
Enthalpy kJ/kg
Mixing ratio g/kg
Relative humidity %RH
Relative humidity (dew/frost) %RH
Relative saturation %RS
g/m
g/m
3
3
7, 8, and 9
MMP8 TMP1
13
HMP Series with MMP8 and TMP1 User Guide M212022EN-F
Output parameter Output unit HMP1, 3, 4, 5,
Temperature °C
Water activity -
Water concentration ppm
Water concentration in oil ppm
Water concentration (wet basis) vol-%
Water mass fraction ppm
Wet-bulb temperature °C
Water vapor pressure hPa
Water vapor saturation pressure hPa
v
v
w
7, 8, and 9
MMP8 TMP1
2.4 Additional features with Indigo transmitters
Connecting the probe to an Indigo transmitter provides a wide range of additional options for
outputs, measurement viewing, status monitoring, and configuration interface access.
Examples of additional features available with Indigo500 series transmitters:
• Touchscreen display for real-time data viewing and configuration
• Support for 2 probes simultaneously
• 4 configurable analog outputs
• 2 configurable relays
• Ethernet connection with web interface for remote access
• Modbus TCP/IP protocol
Examples of additional features available with Indigo200 series transmitters:
• 3.5” TFT LCD color display or non-display model with LED indicator
• Digital output or 3 analog outputs (depending on the transmitter model)
• 2 configurable relays
• Wireless browser-based configuration interface for mobile devices and computers (IEEE
802.11 b/g/n WLAN)
Available features vary depending on the Indigo transmitter model. For more
information on Indigo transmitters, see www.vaisala.com/indigo.
14
2.5 Safety
Chapter 2 – Product overview
WARNING!
has not been exposed to dangerous contamination, and is safe to handle
without special precautions.
CAUTION!
serviceable parts inside the probe body.
CAUTION!
deposit impurities on the probe head.
CAUTION!
condensation prevention heating or chemical purge functions are active.
When returning a product for calibration or repair, make sure it
Do not attempt to open the probe body. There are no user
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 cause immediate or latent damage to electronic circuits.
Vaisala products are adequately protected against ESD for their intended use. However, it is
possible to damage the product by delivering an electrostatic discharge when touching,
removing or inserting any objects inside the equipment housing.
Avoid touching component contacts or connectors when working with the device.
2.7
Regulatory statements
2.7.1 FCC Part 15 compliance statement
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment generates,
uses and can radiate radio frequency energy and, if not installed and used in accordance with
the instructions, may cause harmful interference to radio communications. However, there is
no guarantee that the interference will not occur in a particular installation. If this equipment
does cause harmful interference to radio or television reception, which can be determined by
turning the equipment o and on, the user is encouraged to try to correct the interference by
one or more of the following measures:
• Reorient or relocate the receiving antenna.
15
HMP Series with MMP8 and TMP1 User Guide M212022EN-F
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit dierent from that to which the receiver
is connected.
• Consult the dealer or an experienced radio/TV technician for help.
CAUTION!
by the party responsible for compliance could void the user's authority to
operate the equipment.
This device complies with part 15 of the FCC Rules. Operation is subject to the
following two conditions: (1) This device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that
may cause undesired operation.
Changes or modifications to this equipment not expressly approved
2.7.2 Canada ICES-003 compliance statement
This Class B digital apparatus complies with Canadian ICES‑003.
Cet appareil numerique de la classe B est conforme a la norme NMB‑003 du Canada.
16
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 chemical 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.
The integrated sensor arrangement on the HMP1 and HMP9 probes is dierent from the
composite sensors used in the other HMP probes. However, they are also capable of using
condensation prevention heating and chemical purge.
3.2
Chemical purge
Chemical 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 chemical purge the values of the output parameters stay frozen at their last measured
values. Chemical purge takes a few minutes to complete, after which measurement continues
normally and updated values of output parameters are again available.
When ordered with chemical purge enabled, HMP model probes perform the purge at one day
intervals (known as interval purge). If desired, chemical purge can also be performed when
the probe is powered on (known as startup purge). Purge settings can be configured with
Insight software or using Modbus protocol.
To allow the chemical purge to be completed in a reasonable time, it will not be
started if the ambient temperature is below 0 °C (+32 °F).
17
HMP Series with MMP8 and TMP1 User Guide M212022EN-F
3.3 Condensation prevention functions
Condensation prevention heating 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 Insight software or using Modbus protocol. The setting
is only available if your probe supports condensation prevention.
By default, condensation prevention is o. However, the HMP7 model can be ordered from
Vaisala with the feature enabled.
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
temperature is written to register 0334
be measured or calculated without this external temperature information, such as dew point
temperature, are available even without the temperature input.
Sensor warming
Sensor warming is available to all HMP series probes with composite sensors, HMP1, and HMP9.
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 external temperature information is provided to
the probe. 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 continous warming is needed.
from an external source. Output parameters that can
hex
Probe heating
Probe heating is available on HMP7 model only. Probe heating warms up the entire probe head
instead of just the sensor. It is intended for use in challenging measurement environments
where condensation on the probe would otherwise present a problem.
Probe heating always applies some heating power even when the sensor is not near
condensation, so temperature-dependent output parameters are permanently unavailable
when probe heating is used, unless external temperature information is provided to the probe.
If the ambient dew point rises close to current sensor temperature, the heating power is
increased to avoid condensation. Heating power also increases as supply voltage increases.
If you use probe heating, be sure to mount the HMP7 probe head in a way that
prevents the heat from being conducted away from the probe. Tightly connecting
the HMP7 probe head to a metal structure may prevent the probe from
maintaining probe temperature above the dew point. It will also heat the structure
which may be undesirable.
18
Even if condensation prevention has been turned on, probe heating is not active if
supply voltage is below 18 V DC. For example, this is the case when HMP7 probe is
connected to Insight software using the Indigo USB Adapter.
More information
‣
Configuring condensation prevention (page 42)
Chapter 3 – Functional description
19
1
2
3
4
HMP Series with MMP8 and TMP1 User Guide M212022EN-F
4. Installation
When you choose the installation location for 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 body.
• If the temperature of the measured environment diers greatly from ambient
temperature, the entire probe head and preferably plenty of cable must be inside the
measured environment. This prevents measurement inaccuracy caused by heat
conduction along the cable.
• Probe mounting options are model-specific.
Figure 2 Example installation
Mount the probe head horizontally to prevent any water condensing on the probe head
1
from running to the sensors.
2 Let the cable hang loosely to prevent condensed water from running along the cable to
the probe body or probe head.
3 Attach the probe body to a wall or other surface using supplied probe holder (item code
ASM213582).
4 Cable to Modbus master or Indigo transmitter.
More information
‣
Default communication settings (page 99)
20
4.1 Probe holder ASM213582
1
2
3
5
4
52 [2.05]
Ø 5.9 [0.23]
4 mm hex
57 [2.24]
38 [1.50]
mm
[in]
25 mm
1 Wall plugs (2 pcs included, 6×30 nylon)
2 Base of the probe holder
3 Screws (2 pcs included, 4.8×25 DIN7981C PZ A4)
4 Ø 25 mm (0.98 in) probe body
5 Top of the probe holder with 2 hex screws (4-mm socket)
Chapter 4 – Installation
Figure 3 Probe holder ASM213582 dimensions
4.1.1 Mounting the probe body using probe holder ASM213582
Probe holder ASM213582 is designed for attaching a 25 mm probe body to a wall or other
surface with screws.
21
1
534
2
HMP Series with MMP8 and TMP1 User Guide M212022EN-F
1. Use a 4-mm Allen key to open the hex screws and remove the top part of the probe
holder.
2. Hold the base part against the mounting surface and mark the locations of the 2 screw
holes.
3. Drill holes at the marked locations using a 6-mm drill bit. Make the holes at least 30 mm
deep.
4. Insert the wall plugs in the holes.
5. Mount the base part using screws.
6. Insert the probe body in the holder.
7. Place the top part on the base and tighten the hex screws with a 4-mm Allen key.
4.2 Wiring
Figure 4 M12 5-pin A-coded male connector pinout
Pin #
1 Power supply Operating voltage:
2 RS-485 - White
3 Power GND and
4 RS-485 + Black
5 Not connected Gray
22
Function Notes Wire colors in Vaisala cables
Brown
• HMP7: 18 ... 30 V DC
• Other models: 15 ... 30 V DC
Current consumption: 10 mA typical,
500 mA max.
Blue
RS-485 common
RS-485 host
DC power supply
RS-485 +
RS-485 -
RS-485 common
+
-
Pin #1
Power supply
Pin #2
RS-485 -
Pin #3
Power GND
RS-485 common
Pin #4
RS-485 +
Pin #5
Probe
Figure 5 RS-485 wiring
112 [4.41]
162 [6.38]
Ø 25
[0.98]
M12/5
Ø 5
[0.20]
16
[0.63]
50 [1.97]
mm
[in]
Recommended maximum length of the RS-485 line is 30 m (98 ft).
4.3 HMP1 probe
Chapter 4 – Installation
Figure 6 HMP1 probe dimensions
Vaisala HUMICAPâ Humidity and Temperature Probe HMP1 is designed for ambient
measurement in indoor spaces. Its probe head and body are integrated into a single unit with
no cable between them. HMP1 can be directly connected to Indigo200 series transmitters to
form a single wall-mounted unit.
23
136 [5.35]
Probe cable 2 m [6.56 ft]
Ø 25
[0.98]
M12/5
98.5 [3.88]
78.5 [3.09]
37.5 [1.48]
Ø 5
[0.2]
Ø 12
[0.47]
M9x1
mm
[in]
HMP Series with MMP8 and TMP1 User Guide M212022EN-F
See Attaching probe to Indigo200 series transmitter (page 47).
• Operating temperature −40 … +60 °C (−40 … +140 °F)
• Integrated filter (non-replaceable)
Do not damage the probe head by bending, crushing, or striking it.CAUTION!
4.4 HMP3 probe
Figure 7 HMP3 probe dimensions
Vaisala HUMICAPâ Humidity and Temperature Probe HMP3 is a general purpose probe
designed for various industrial processes. The probe structure allows for replacing the sensor
without tools, making it suitable for applications such as paint booths and other industrial
applications where periodic recalibration alone is not sucient for maintaining the probe
performance. Other suitable applications include, for example, industrial HVAC systems,
cleanrooms, and environmental chambers.
• Operating temperature for probe head −40 … +120 °C (−40 … +248 °F)
• Operating temperature for probe body −40 … +80 °C (−40 … +176 °F)
24
136 [5.35]
Probe cable 2 m [6.56 ft]
Ø 25
[0.98]
M12/5
183 [7.20]
120 [4.72]
41 [1.61]
Ø 5
[0.2]
Fitting body NPT1/2” or M22×1.5
with sealing ring Ø22×27×1.5 Cu
Ø 12
[0.47]
32 mm 27 mm
mm
[in]
Chapter 4 – Installation
If purchased with a composite sensor instead of the field replaceable HUMICAPâ R2 sensor,
HMP3 can use the chemical purge feature. In environments with high concentrations of
chemicals and cleaning agents, the chemical purge option helps to maintain measurement
accuracy between calibration intervals.
More information
‣
Mounting probe head inside DTR502B (page 38)
4.5 HMP4 probe
Figure 8 HMP4 probe dimensions
Vaisala HUMICAPâ Humidity and Temperature Probe HMP4 is designed for high-pressure
applications such as compressed air systems in maritime, breathing air, and industrial
applications, where measurement performance and chemical tolerance are essential.
• Temperature measurement range −70 … +180 °C (−94 … +356 °F)
• Operating pressure 0 … 10 MPa (0 … 100 bar)
• Operating temperature for probe body −40 … +80 °C (−40 … +176 °F)
• M22×1.5 or NPT1/2” fitting body
Use a sealing ring (Ø22×27×1.5 Cu) with the M22×1.5 fitting. Replace the sealing
ring every time the probe is detached. Three sealing rings are supplied with the
fitting.
25
136 [5.35]
Ø 25
[0.98]
M12/5
41 [1.61]
253 [9.96]
243 [9.57]
Ø 12
[0.47]
Ø 13.5
[0.53]
Probe cable
2 m [6.56 ft] or 10 m [32.8 ft]
Ø 5
[0.2]
mm
[in]
75 [2.95]
50 [1.96] 19 [0.75]
mm
[in]
HMP Series with MMP8 and TMP1 User Guide M212022EN-F
4.6 HMP5 probe
Figure 9 HMP5 probe dimensions
Figure 10 Optional mounting flange 210696 dimensions
Vaisala HUMICAPâ Humidity and Temperature Probe HMP5 is designed for high-temperature
applications such as baking ovens, pasta dryers, and industrial drying kilns, where
measurement performance and chemical tolerance are essential.
• Temperature measurement range −70 … +180 °C (−94 … +356 °F)
26
• Operating temperature of probe body −40 … +80 °C (−40 … +176 °F)
136 [5.35]
Ø 25
[0.98]
M12/5
Ø 12
[0.47]
99.5 [3.92]
79.5 [3.13]
37.5 [1.48]
Groove for
lock ring
Ø 12
[0.47]
Ø 5
[0.2]
Probe cable
2 m [6.56 ft] or 10 m [32.8 ft]
mm
[in]
• 250-mm (9.84 in) probe allows easy process installation through insulation
4.7 HMP7 probe
Chapter 4 – Installation
Figure 11 HMP7 probe dimensions
Vaisala HUMICAPâ Humidity and Temperature Probe HMP7 is designed for applications that
involve constant high humidity or rapid changes in humidity, such as drying and test
chambers, combustion air, and other humidifiers and meteorological measurements, where
measurement performance and chemical tolerance are essential.
• Temperature measurement range −70 … +180 °C (−94 … +356 °F)
• Operating temperature of probe body −40 … +80 °C (−40 … +176 °F)
• Condensation prevention with probe heating
• Vapor and pressure proof construction
Condensation prevention with probe heating
Condensation prevention on HMP7 uses a combination of probe heating and sensor warming.
Probe heating keeps the entire probe head above the current dew point temperature, which
prevents condensation from forming on the probe.
27
HMP Series with MMP8 and TMP1 User Guide M212022EN-F
The values of output parameters that are dependent on temperature measurement (such as
relative humidity) are unavailable when the probe is warming itself, unless the true
temperature of the measured environment is updated to the temperature compensation
register of the probe from another measurement instrument (for example, TMP1 model probe).
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.
Indigo500 transmitters support HMP7 temperature compensation from TMP1. For more
information, see Indigo520 User Guide (M212287EN).
HMP7 in fuel cell applications
Probe heating makes HMP7 ideal for use in fuel cell applications, specifically proton-exchange
membrane fuel cells (PEMFC). Humidity measurements in fuel cell applications are performed
in a high-humidity environment, typically over 80% relative humidity. Performing humidity
measurements in hot, near-condensing environments is a challenging task, and the humidity
sensor must be adequately protected against saturation to allow continuous measurement.
Probe heating accomplishes just that.
HMP7 can be ordered from Vaisala with special settings that have been optimized for the fuel
cell application. These settings include a faster probe heating control that allows the probe to
quickly heat the probe to stay ahead of the rising dew point temperature.
WARNING!
potentially explosive atmospheres. Make sure no part of the probe is placed in
a potentially explosive gas mixture.
More information
‣
Mounting probe head inside DTR502B (page 38)
28
HMP7 is not designed for use in hazardous environments with
136 [5.35]
Probe cable 2 m [6.56 ft]
Ø 25
[0.98]
M12/5
Ø 12
[0.47]
41 [1.61]
Ø 13.5
[0.53]
Fitting body
ISO1/2” or NPT1/2”
Ø 5
[0.2]
268 [10.55]
230 [9.06]
41 ... 185 [1.16 ... 7.28]
mm
[in]
Chapter 4 – Installation
4.8 HMP8 probe
Figure 12 HMP8 probe dimensions
Vaisala HUMICAPâ Humidity and Temperature Probe HMP8 is designed for pressurized
applications in compressed air systems, refrigerant dryers, and other pressurized industrial
applications, where easy insertion and removal of the probe and adjustable installation depth
into the pipeline are needed.
• Temperature measurement range −70 … +180 °C (−94 … +356 °F)
• Operating temperature of probe body −40 … +80 °C (−40 … +176 °F)
• Operating pressure 0 … 4 MPa (0 … 40 bar)
• Probe installation depth can be freely adjusted and probe can be hot-swapped from
pressurized pipelines with an installation valve
• ISO1/2" or NPT1/2" fitting body
29
G1/2
ISO 228/1
Ø21.5 (drilling)
Ø14
Ø14
Ø14
2
3
4
5
1
HMP Series with MMP8 and TMP1 User Guide M212022EN-F
4.8.1 Attaching ball valve kit to process
1 Ball valve handle: must point to the same direction as the ball valve body when installing.
2 Extension nipple, threads G1/2 ISO228/1 and R1/2 ISO7/1.
3 Ball valve body. When tightening the assembly, turn only from the ball valve body.
4 Ball of the ball valve.
5 Welding joint, threads R1/2 ISO7/1.
30
112 [4.41]
Probe cable 2 m [6.56 ft]
Ø 25
[0.98]
M12/5
94 [3.70]
Ø 2.4
[0.094]
Ø 5 ±0.05
[0.20 ±0.002]
16 [0.63]
Attachment point
mm
[in]
Chapter 4 – Installation
1. Attach the welding joint to the process pipe or chamber.
2. Apply a sealant (MEGA-PIPE EXTRA No. 7188 or LOCTITEâ No. 542 with activator No.
7649) on the threads of the welding joint and screw the bottom of the ball valve onto the
welding joint.
3. Tighten the ball valve assembly by turning from the ball valve body.
CAUTION!
can break the sealing. Tighten the ball valve assembly only from the ball
valve body.
4. If you need to cap the ball valve assembly before installing or after removing the probe,
attach a blanking nut to close the top of the valve.
4.9
HMP9 probe
Tightening the ball valve kit by turning the extension nipple
Figure 13 HMP9 probe dimensions
Vaisala HUMICAPâ Humidity and Temperature Probe HMP9 is designed for easy installation
into rapidly changing environments where fast response time, measurement performance, and
chemical tolerance are essential.
31
1 2 3
4
HMP Series with MMP8 and TMP1 User Guide M212022EN-F
The probe head can be mounted through thin metal walls using the included cable gland or
mounting grommet. Two grommets are included: small one for 6.5 mm diameter hole, and
large one for 12.5 mm diameter hole.
You can also attach the probe head directly using a zip tie. The probe head should be attached
from the point near the black plastic part.
• Temperature measurement range −40 … +120 °C (−40 … +248 °F)
• Operating temperature of probe body −40 … +60 °C (−40 … +140 °F)
• Integrated filter (non-replaceable)
CAUTION!
Avoid overtightening when installing the probe head through a cable gland.
More information
‣
Mounting probe head inside DTR502B (page 38)
Do not damage the probe head by bending, crushing, or striking it.
4.9.1 Installing HMP9 through a cable gland
Figure 14 Installing HMP9 probe head through a cable gland
Black plastic part of the HMP9 probe head
1
2 Nut for tightening the probe in place
3 Base of the cable gland
4 M10×1.5 threads of the cable gland
32
mm
[in]
99 [3.90]
Ø3.5 [0.14]
Ø 12
[0.47]
84 [3.31]
34 [1.34]
271 [10.67]
Ø 12
[0.47]
Chapter 4 – Installation
• M10×1.5 cable gland (included with HMP9 probe)
• Drill with 8.5 mm bit
• M10×1.5 threading tap
• 13 mm wrench
1. Drill a 8.5 mm diameter hole in the installation location.
2. Use a threading tap to create a M10×1.5 thread in the hole.
3. Install the base of the cable gland in the hole and tighten with a 13 mm wrench.
4. Insert the seal of the cable gland in the base and place the nut of the cable gland over the
probe head.
5. Insert the probe head in the cable gland up to the black plastic part of the probe head.
Leave the black plastic part entirely outside the cable gland. Tighten the cable gland to
finger tightness.
6. Tighten the nut of the cable gland with a 13 mm wrench until the probe head stops
moving. Do not overtighten.
4.9.2 Overview of HMP9 Duct Installation Kit
Duct Installation Kit (Vaisala item ASM214055) is an optional accessory designed to support
the probe head of a HMP9 Humidity and Temperature Probe in installations to ducts and
chambers. The kit is lightweight and can be installed with minimal tools.
The kit does not include an attachment for the probe body of HMP9. To mount the probe body,
use the probe holder supplied with HMP9, or attach it directly to a compatible Indigo
transmitter.
Figure 15 Duct Installation Kit ASM214055 dimensions
33
90°
1
2
4
3
HMP Series with MMP8 and TMP1 User Guide M212022EN-F
Figure 16 Duct installation overview
1 Make sure there is a minimum clearance of 5 m (16.5 ft) between the probe head and any
possible humidifier. Avoid installing in a location where condensation can fall on the probe
head inside the duct.
2 Maximum air flow speed: 50 m/s.
3 Avoid installing the probe in dead legs. Supersaturation can occur in areas where there is
no air flow.
4 Install the probe head in a 90° angle to prevent condensation from travelling to the sensor
along the mounting pipe. Position the sensor as close to the middle of the duct as
possible.
4.9.3 Mounting HMP9 probe head with Duct Installation Kit
1. Loosen the sealing gland on the back of the pipe by turning it 1.5 full rotations. Do not
detach the gland to avoid dislocating the sealing ring.
34
Chapter 4 – Installation
2. Push the probe head of HMP9 firmly through the sealing gland. Push the probe head
further using its cable until it appears from the end of the tube. Adjust so that half of the
metal probe head is visible, and tighten the sealing gland by hand so that it holds the
probe cable in place.
3. Insert the mounting flange on the pipe. Make sure the black sealing surface faces the
probe head.
4. Make a Ø 14 mm (0.55 in) hole in the duct or chamber wall.
5. Push the probe head and pipe into the duct or chamber, and attach the flange using the 2
screws. If necessary, use a drill to make starter holes for the screws (max . Ø 2 mm (0.07
in)).
6. Adjust the mounting depth of the probe so that the probe is in the middle of the duct, and
tighten the holding screw on the flange to lock the pipe in place.
35
136 [5.35]
Probe cable 2 m [6.56 ft]
Ø 25
[0.98]
M12/5
Ø 5
[0.2]
262 [10.32]
224 [8.82]
35 ... 179 [1.37 ... 7.05]
35 [1.37]
Ø 13.5
[0.53]
Fitting body
ISO1/2” or NPT1/2”
Ø 12
[0.47]
mm
[in]
HMP Series with MMP8 and TMP1 User Guide M212022EN-F
4.10 MMP8 probe
Figure 17 MMP8 dimensions
Vaisala HUMICAPâ Moisture in Oil Probe MMP8 enables fast and reliable measurement of
moisture in oil. It uses proven Vaisala HUMICAPâ sensor that was developed for demanding
dissolved moisture measurements in transformer and lubrication oils, hydraulic fluids, and
other liquids.
MMP8 measures dissolved moisture in oil in terms of the water activity (aw), relative saturation
(%RS), and temperature (T). Water activity or relative saturation indicate directly whether
there is a risk of free water formation. This data is relevant in lubrication oil applications where
detecting water ingress and preventing free water formation is crucial. The measurement is
independent of oil type and age.
MMP8 can also output ppm, the average mass concentration of water in oil. Vaisala has this
conversion readily available for specific oils, including mineral transformer oil. This allows
continuous measurement of ppm concentration in power transformer condition monitoring.
• Temperature measurement range −40 … +180 °C (−40 … +356 °F)
When installed with the ball valve kit, the MMP8 is ideal for installation into processes where
the probe needs to be installed or removed while the process is running. Probe installation
depth is adjustable. Pressure fitting options are ISO 1/2" and NPT 1/2". MMP8 is delivered with
a manual pressing handle that allows the probe to be pushed against process pressure.
For installation instructions of the ball valve see Attaching ball valve kit to process (page 30).
36
4.11 TMP1 probe
130 [5.12]
136 [5.35]
Ø 25
[0.98]
M12/5
Ø 3.2
[0.13]
Probe cable
2 m [6.56 ft] or 10 m [32.8 ft]
mm
[in]
Ø 6
[0.24]
Figure 18 TMP1 probe dimensions
Chapter 4 – Installation
Vaisala Temperature Probe TMP1 is designed for demanding temperature measurements in
industrial applications such as pharmaceutical industry and calibration laboratories, where
accuracy and robustness are essential.
• Temperature measurement range −70 … +180 °C (−94 … +356 °F)
• Operating temperature of probe body −40 … +80 °C (−40 … +176 °F)
4.12
DTR502B solar radiation shield
DTR502B protects the sensors on the probe head from solar radiation and precipitation in
outdoor installations. It provides excellent ventilation while blocking both direct and reflected
solar radiation. The special plastic used in the plates has excellent thermal characteristics, the
white outer surface reflects radiation, the black inside absorbs accumulated heat. The shield
can be easily installed on either a vertical pole, horizontal beam, or a flat surface.
DTR502B is compatible with the probe heads of HMP3, HMP7 and HMP9 probes. HMP9
requires the use of a special sensor head support (item code 215130) due to the smaller
diameter of its probe head.
37
Ø 105 [4.13]
213 [8.39]
361 [14.21]
200 [7.87]
mm
[in]
HMP Series with MMP8 and TMP1 User Guide M212022EN-F
DTR502B is designed to hold only the probe head. The probe body must be
separately mounted and protected in outdoor installations. If possible, mount the
probe indoors and bring only the probe head outside, into the DTR502B.
Figure 19 DTR502B dimensions
4.12.1 Mounting probe head inside DTR502B
DTR502B solar radiation shield is compatible with the probe heads of HMP3, HMP7, and HMP9
probes. The sensor head support that is included with the DTR502B is suitable for attaching
HMP3 and HMP7 probe heads, but for HMP9 you need an alternate sensor head support (item
code 215130).
38
• 3-mm and 5-mm Allen keys
• Crosshead screwdriver
1
5
4
32
Chapter 4 – Installation
Figure 20 Mounting DTR502B on a pole mast
Pole mast with diameter 30 … 60 mm (1.2 … 2.3 in)
1
2 Support plate
3 Fastening ring
4 Probe head
5 Sensor head support
1. Mount the solar radiation shield in the measurement location using the provided
mounting accessories, screws, and washers. You can mount the radiation shield to a pole
mast as shown in Figure 20 (page 39), or to a horizontal beam directly from its support
plate.
39
1
2
4
3
5
6
HMP Series with MMP8 and TMP1 User Guide M212022EN-F
2. Attach the probe head to the sensor head support and secure it with a cable tie. The
alternate sensor head support (item code 215130) needed with HMP9 is shown in Figure 21
(page 40).
Figure 21 HMP9 probe head with sensor head support 215130
1 HMP9 probe head
2 Mounting nut
3 Sealing ring
4 Fastening ring
5 Cable tie
6 Cable between probe head and probe body
3. Insert the fastening ring and the sealing ring on the probe head.
4. Slide the probe head into the radiation shield and tighten the sealing ring.
40
Chapter 5 – Configuration with Insight software
5. Configuration with Insight software
5.1 Vaisala Insight software
Vaisala Insight software is a configuration software for Indigo-compatible devices. With the
Insight software, you can:
• See probe information and status
• See real-time measurement
• Record data up to 48 hours and export in CSV format
• Calibrate and adjust the probe
• Configure probe features such as measurement filtering, chemical purge, condensation
prevention, and serial communication
Microsoft Windowsâ operating system and Indigo USB adapter (item code USB2) or Vaisala
USB cable (item code 242659) required.
Download Vaisala Insight software at www.vaisala.com/insight.
5.2
Connecting to Insight software
• Computer with Microsoft Windowsâ operating system and Vaisala Insight
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.
Figure 22 Connecting probe to Insight using Indigo USB adapter
When connecting several devices at the same time, note that your
41
HMP Series with MMP8 and TMP1 User Guide M212022EN-F
1. Open Insight software.
2. Verify the current 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 Insight software to detect the probe.
5.3 Configuration options
Insight software is the recommended way to change the probe configuration. After connecting
the probe, select > Configure Device to access the configuration options.
Available configuration options include all of the Modbus configuration registers (see
Configuration registers (page 104)) and several additional 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 23 HMP5 in Insight software
5.4
Configuring condensation prevention
1. Connect the probe to Insight. See Connecting to Insight software (page 41).
2. Select > Configure Device.
42
Chapter 5 – Configuration with Insight software
3. Set the Condensation prevention on/o switch to the desired setting.
The switch is not available if the probe does not support any condensation
prevention heating features, or if the probe firmware version is older than
1.2.0. Probes with older firmware versions will show configuration switches
for individual condensation prevention features as applicable.
More information
‣
Condensation prevention functions (page 18)
5.5 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/T 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.
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.
43
HMP Series with MMP8 and TMP1 User Guide M212022EN-F
Figure 24 HMP5 diagnostics in Insight (advanced mode)
44
1
2
3
4
5
6
Chapter 6 – Using probe with Indigo transmitters
6. Using probe with Indigo transmitters
Indigo transmitters are host devices that extend the feature set of connected probes with a
range of additional options for outputs, configuration access, measurement viewing, and
status monitoring.
Available features vary depending on the transmitter model. Models without display use a LED
indicator for notifications.
6.1 Indigo200 series transmitters
Indigo200 series transmitters have a probe connector where compatible probes can be
attached directly. A cable may also be used to connect the probe.
After connecting the probe, use the wireless configuration interface to configure the
transmitter.
Figure 25 Probe attached to Indigo200 series transmitter directly
3.5” TFT LCD color display: non-display option with LED available for certain models
1
2 Locking wheel: insert probe, hold in place, and turn the wheel counterclockwise
3 Cable to probe head
4 Wireless configuration interface (WLAN) activation button
5 Rubber lead-through with strain relief. Cable feedthrough option also at back of
transmitter.
6 Input/output cable
45
1
2
3
HMP Series with MMP8 and TMP1 User Guide M212022EN-F
Figure 26 Probe attached to Indigo200 series transmitter with a cable
Cable to probe head
1
2 Locking wheel: insert cable, hold in place, and turn the wheel counterclockwise
3 Connection cable
46
Chapter 6 – Using probe with Indigo transmitters
6.1.1 Attaching probe to Indigo200 series transmitter
Figure 27 Attaching the probe to Indigo200 series transmitter
1. Insert the probe or the connection cable into the transmitter's connector. Use of
connection cable is recommended for strain relief.
2. Turn the locking wheel of the transmitter to lock the probe or cable in place.
Do not turn the probe or the cable itself, as that will damage the connectors.
3. If you are using a connection cable, connect the probe to the cable.
4. When the transmitter recognizes the connected probe, it shows a notification message on
the display.
47
3 4
1
2
5
HMP Series with MMP8 and TMP1 User Guide M212022EN-F
6.2 Indigo500 series transmitters
Probes are connected to Indigo500 series transmitters using a cable. Connections are made to
the screw terminals inside the housing. Indigo520 model allows 2 probes to be connected.
After connecting a probe, use the touchscreen interface or the web user interface to configure
the transmitter.
Figure 28 Attaching probes to Indigo500 transmitter
Probe connection cable, probe 1
1
2 Probe connection cable, probe 2
3 Probe to be connected as probe 2
4 Probe to be connected as probe 1
5 Probe cable connector (5-pin M12)
48
Chapter 7 – Maintenance
7. Maintenance
7.1 Cleaning the probe
Do not attempt to clean the sensors under the filter in any way.CAUTION!
Do not spray anything directly on the probe head, since that may deposit
impurities on the sensors.
You can clean the probe, probe body, 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 body.
• Do not immerse the probe or the probe body in liquid to clean them.
• Wipe cleaning agents o the probe, probe body, and the cable after cleaning.
After cleaning the probe, it is recommended to perform a chemical purge.
7.1.1 Chemical tolerance
Avoid exposing the probe to cleaning agents for unnecessarily long periods of
time.
Table 4 Suitability of cleaning agents
Cleaning Agent Suitability
Acetone Suitable
Chlorine disinfectants Suitable
Ethanol Suitable
Heptane Suitable
Isopropyl alcohol Suitable
49
HMP Series with MMP8 and TMP1 User Guide M212022EN-F
7.2 Changing the probe filter
• New compatible filter
• Clean lint-free gloves
CAUTION!
the probe head carefully.
HMP9 and TMP1 probe models do not have a removable filter.
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 (recommended force
5 Nm).
7.3
Replacing the HUMICAP R2 sensor
• New HUMICAPâ R2 sensor
• New compatible filter
• Clean lint-free gloves
• 11.3 %RH and 75.5 %RH humidity references (using Vaisala HMK15 Humidity
Calibrator)
• Computer with Microsoft Windowsâ operating system and Vaisala Insight
software installed
• Indigo USB adapter (item code USB2) or USB connection cable (item code
242659)
Sensors are easily damaged when the filter is not in place. Handle
Follow this procedure to replace a HUMICAPâ R2 humidity sensor it has been damaged, or
normal adjustment is not sucient to restore the humidity measurement accuracy. It is
recommended that you replace the filter at the same time. The procedure includes a special 2point adjustment of humidity measurement using Insight PC software. This adjustment must
be done every time after the HUMICAPâ R2 sensor has been replaced.
50
2
1
Chapter 7 – Maintenance
CAUTION!
user. Other humidity sensor types available for HMP series probes are composite
sensors where the humidity sensor and temperature sensor are permanently
attached together. If you need to replace a composite sensor, contact a Vaisala
Service Center.
CAUTION!
the probe head carefully.
CAUTION!
entered in this procedure. If you need to revert the probe to factory settings
after replacing the sensor yourself, write down the values on the Adjustment
data page beforehand, and enter them again after applying the factory settings.
Only the HUMICAPâ R2 sensor is designed to be replaced by the
Sensors are easily damaged when the filter is not in place. Handle
Reverting the probe to factory settings clears the adjustment values
Figure 29 HMP3 probe head with filter removed
Pt100 temperature sensor
1
2 HUMICAPâ R2 humidity sensor
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. There are two sensors under the filter, the HUMICAPâ sensor and a temperature sensor.
Identify the HUMICAPâ sensor and make sure it is of the R2 type (temperature sensor not
attached to it).
51
HMP Series with MMP8 and TMP1 User Guide M212022EN-F
5. Pull out the old HUMICAPâ R2 sensor and insert the new one.
CAUTION!
sensor element in the middle of the sensor. Do not touch the temperature
sensor.
6. Open Insight software.
7. Select Settings > Advanced Mode.
8. Connect the probe to Insight. See Connecting to Insight software (page 41).
9. Select
10. Select Adjustment data.
11. Adjust the 11.3 %RH point (dry end):
12. Adjust the 75.5 %RH point (wet end):
13. Click outside the table to commit the adjustment.
14. Remove the probe head from the calibration reference and install a new filter. Tighten the
filter properly (recommended force 5 Nm).
15. Select the Calibration information tab and update the Calibration date and Calibration
text.
16. Select Close > Yes to exit the calibration mode.
> Calibrate > Yes to switch the probe to calibration mode.
a. Insert the probe head in the 11.3 %RH reference.
b. Wait for the measurement to stabilize fully.
c. Click table cell A1 under RH adjustment data and enter the value of the humidity
reference (11.3).
d. Click table cell B1 and enter the %RH measured by the probe.
a. Insert the probe head in the 75.5 %RH reference.
b. Wait for the measurement to stabilize fully.
c. Click table cell A2 and enter the value of the humidity reference (75.5).
d. Click table cell B2 and enter the %RH measured by the probe.
Handle the new sensor by the plastic frame. Do not touch the
7.4
Calibration and 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.
When adjustment is necessary, you can have Vaisala calibrate and adjust the probe. To order
calibration services from Vaisala, visit store.vaisala.com. You can also do the adjustment
yourself using the Insight software.
52
Chapter 7 – Maintenance
WARNING!
has not been exposed to dangerous contamination, and is safe to handle
without special precautions.
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.
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.
When returning a product for calibration or repair, make sure it
7.4.1 Adjustment points and requirements
You can adjust the humidity measurement in 1 … 5 points, and temperature measurement in
1 … 2 points. Note the following:
• Humidity adjustment in more than two points is available when using Insight software in
Advanced Mode.
• 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 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 the Vaisala HMK15 Humidity Calibrator.
Adjustment of temperature measurement is typically not necessary.
7.4.2 HMK15 Humidity Calibrator with HMP Series probes
Vaisala HMK15 Humidity Calibrator is a suitable humidity reference for HMP 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.
53
HMP Series with MMP8 and TMP1 User Guide M212022EN-F
HMK15 with HMP3, HMP4, HMP5, HMP7, and HMP8 probes
Before inserting the probe head in the salt jar, remove the filter and inspect the sensor
element. If the leg pins of the sensor are longer than 7 mm (0.28 in), attach the 211302SP
calibration adapter. This prevents the sensor from being submerged in the salt solution.
Composite sensors typically have long leg pins.
211302SP is the longer of the two adapters included with HMK15. With this adapter attached,
use the 13.5 mm hole on the salt jar cover.
Figure 30 HMP5 calibration with HMK15 using 211302SP adapter
12 mm (0.47 in) diameter probes where the leg pins are shorter than 7 mm can be inserted in
the salt jar without an adapter. Note that you can still use the 218377SP calibration adapter to
fit a 12 mm probe in the 13.5 mm hole. This allows you to have multiple probes inserted in a salt
jar at one time.
54
CAUTION!
Sensors on the probe head are vulnerable to damage when the
filter is removed. Handle the probe carefully and avoid touching the sensors.
Chapter 7 – Maintenance
HMK15 with HMP1 and HMP9
HMP9 calibration adapter for HMK15 (item code ASM213801) is required to fit the HMP9 probe
head to the 12 mm hole on the HMK15 salt jar.
Figure 31 Using HMP9 calibration adapter with HMK15
The same adapter does mechanically fit the HMP1 as well. However, use of HMK15 with HMP1 is
not recommended due to additional temperature error caused by heat conduction from the
electronics of the probe body. HMP1 should be calibrated so that the entire device is in the
calibration environment, not just the probe head. Vaisala's calibration service is a good option
for maintaining the accuracy of HMP1.
You can use HMK15 with HMP1 and achieve an accurate calibration if the probe is
unpowered during stabilization. This is typically only practical for 1-point
calibration.
7.4.3 Adjusting measurement with Insight software
• Computer with Microsoft Windowsâ operating system and Vaisala Insight
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 device to Insight. See Connecting to Insight software (page 41).
2. If you intend to adjust humidity measurement, first select
chemical purge to condition the sensor. Wait a few minutes for purge to complete.
> Purge to perform a
55
HMP Series with MMP8 and TMP1 User Guide M212022EN-F
3. Select > Calibrate > Yes to switch the probe to calibration mode.
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:
a. Insert the probe head in the reference environment for the first calibration point.
b. Wait for the measurement to stabilize fully.
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.
6. If you want to adjust in more than one point, repeat step 5 for all desired calibration
points.
You can adjust humidity measurement in up to five points when Insight is set
to Advanced mode.
7. Select
8. Check the message that appears at the top of the screen. If the message indicates that
9. Select the Calibration information tab and update the Calibration date and Calibration
10. Select Close > Yes to exit the calibration mode.
Activate adjustment > Yes to store the adjustment in the probe.
the adjustment is activated successfully, your adjustment is stored in the probe.
text.
7.4.4 Adjusting measurement with Indigo200 series transmitter
• Indigo200 series transmitter
• Reference environment(s) for producing the desired humidity and/or
temperature (see Adjustment points and requirements (page 53) for more
information)
• Mobile device or computer with an internet browser and a Wi-Fi connection
• Connection cable for connecting the probe to Indigo200 series transmitter
(optional)
This procedure can be used to adjust the humidity or temperature measurement of an Indigocompatible HMP or TMP-series probe. Because stabilization of temperature and humidity takes
time, you should expect the adjustment procedure to take at least 30 minutes for each
adjustment point.
56
Chapter 7 – Maintenance
This procedure assumes the Indigo200 transmitter is powered on and the probe is
connected to it. Refer to the user guide of your Indigo200 transmitter model for
instructions on connecting probes. The user guide also provides more detailed
instructions for operating and troubleshooting the wireless connection.
1. Connect to the wireless configuration interface of the Indigo200 transmitter:
a. Press the wireless connection activation button on the bottom of the transmitter.
b. Open the wireless connection menu in your mobile device or computer and select
Indigo_ID[xx] (transmitter-specific SSID) from the list of available connections.
c. If the wireless configuration interface does not launch automatically on your device,
start your browser application manually and navigate to address 192.168.1.1.
d. Log in to the interface:
• User name: Admin
• Password: 12345 (default)
Stay close to the transmitter for a strong wireless signal and the possibility to
read on-screen messages from the transmitter's display (display models
only). Starting with Indigo200 firmware version 1.4.0, messages from the
probe are also shown through the wireless configuration interface.
57
HMP Series with MMP8 and TMP1 User Guide M212022EN-F
2. To adjust humidity measurement:
a. If your probe supports the chemical purge feature, wait for the start-up purge to
finish or start the purge manually from Calibration > Configuration > Purge.
Measurement will be frozen for the duration of the purge. Continue when the
measured values are changing again.
b. Select the Calibration tab and select Start calibration to start the calibration mode.
c. In the RH adjustment section of the page, select Restore factory adjustment to
remove any existing non-factory adjustments.
d. Insert the probe head in the reference environment for RH adjustment point 1 (dry
point, recommendation 0 … 35 %RH).
e. Wait for the RH and temperature measurements to stabilize fully. This may take more
than 30 minutes. Monitor the readings to see when the measurement has stabilized.
f. Enter the value of the first reference into the Reference value, point 1 field. Select
outside the text box when done. The probe automatically enters the measured values
for the calibration point.
g. If you want to adjust humidity measurement in two points, repeat steps
step 2.d … step 2.f for RH adjustment point 2 (wet point, recommendation
65 … 85 %RH).
h. Select Activate adjustment to store the adjustment in the probe.
When the adjustment is successful, the fields for reference and measured
values are cleared. The message %0 adjustment activated successfully.
appears on the local display (display models only).
If the adjustment fails, the fields are not cleared. A message on the
transmitter's display will indicate the reason. For example, if the humidity
adjustment would be over the maximum 10 %RH allowed by the probe,
the message Cumulative adjustment too large. appears on the local
display.
58
Chapter 7 – Maintenance
Figure 32 Calibration page in the Indigo200 wireless configuration interface
59
HMP Series with MMP8 and TMP1 User Guide M212022EN-F
3. To adjust temperature measurement:
a. If you did not adjust humidity measurement, select the Calibration tab and select
Start calibration to start the calibration mode.
b. In the T adjustment section of the page, select Restore factory adjustment to remove
any existing non-factory adjustments.
c. Insert the probe head in the reference environment for T adjustment point 1.
d. Wait for temperature measurement to stabilize fully. This may take more than 30
minutes. Monitor the reading to see when the measurement has stabilized.
e. Enter the value of the first reference into the Reference value, point 1 field. Select
outside the text box when done. The probe automatically enters the measured value
for the adjustment point.
f. If you want to adjust temperature measurement in two points, repeat steps
step 3.c … step 3.f for T adjustment point 2.
g. Select Activate adjustment to store the adjustment in the probe.
4. In the Calibration information section of the page, update the Calibration date and
Calibration text fields.
5. Select Stop calibration to end the calibration mode.
60
8. Troubleshooting
8.1 Problem situations
Table 5 Troubleshooting table
Problem Possible cause Solution
Measurement output seems
incorrect
Probe status indicator LED is
red
Probe status indicator LED is
o even though power is on
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
head and cable is interfering
with measurement accuracy
Probe is in need of adjustment Calibrate and adjust the probe.
Probe is in error state Connect the probe to Insight
Probe model is HMP1 To prevent the warming of the
Probe is performing a sensor
heating function such as
chemical 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 Installation
(page 20).
See Calibration and adjustment
(page 52).
software or an Indigo
transmitter and read the error
message(s). See Vaisala Insight
software (page 41) and Error
messages (page 61).
indicator LED from causing a
slight measurement error, HMP1
keeps the indicator normally o
(even when power is on). If the
probe is in error state, the red
LED is shown.
Wait for the function to
complete and measurement
parameters to be available
again
Chapter 8 – Troubleshooting
8.2 Error messages
Probes can communicate with error messages when they are connected to an Indigo
transmitter or Insight software. The messages are categorized according to the severity of the
status:
61
HMP Series with MMP8 and TMP1 User Guide M212022EN-F
• 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.
Error message Description Recommended action
Critical errors
Firmware checksum mismatch Firmware is corrupted Contact Vaisala technical
Factory default settings
corrupted
Main configuration settings
corrupted
Additional configuration
settings corrupted
Device settings corrupted
Sensor coecients corrupted
Non-volatile memory read
write failure
Errors
Temperature measurement
error
Humidity measurement error
Humidity sensor failure
Capacitance reference error Hardware fault Contact Vaisala technical
Ambient temperature out of
range
Supply voltage out of range Supply voltage too high or low Check supply voltage
Sensor heater error Hardware fault Contact Vaisala technical
Parameter memory is
corrupted
Hardware fault
Readings from sensors missing
or out of range
Probe body too hot or cold Relocate the probe body so
support
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.
support
that its ambient temperature is
within the specified operating
range
support
62
Warnings
Calibration certificate
checksum mismatch
Calibration has expired Shown by calibration reminder
Supply voltage too low for
probe heating
Software restart Device has automatically
Unexpected device restart
Status messages
Calibration is about to expire Shown by calibration reminder
Purge in progress Chemical purge of the humidity
The readings stay frozen until
the sensor cools down
Certificate stored in the probe
has an invalid checksum
functionality
Probe heating enabled but
supply voltage is too low to use
it
restarted itself
functionality
sensor ongoing
Probe is waiting for its sensors
to cool down
Chapter 8 – Troubleshooting
Contact Vaisala technical
support
Calibrate the probe and update
the calibration date information
This warning is expected when
probe heating is enabled and
the probe is connected to
Insight software using an USB
cable. The operating voltage
provided by the cable is not
sucient for probe heating.
If probe is not connected using
a Vaisala USB cable, check the
supply voltage.
Check that supply voltage is
stable and operating
environment is within
specification
Calibrate the probe and update
the calibration date information
Wait for chemical purge to
complete
Wait for measurement readings
to become available
8.3 Restoring factory default settings
You can restore the probe back to its factory default settings using Insight software. Doing this
will also clear any user adjustment and restore the latest adjustment performed by Vaisala.
1. Connect the probe to Insight. See Connecting to Insight software (page 41).
2. Select
3. Wait for the probe to be re-detected.
> Factory default settings > Restore settings.
63
0.0
0.5
1.0
1.5
2.0
2.5
3.0
-40
-30
-20
-10
0
10
20
30
40
50
60
Accuracy [± %RH]
Temperature [°C]
3.5
4.0
90 ... 100 %RH
0 ... 90 %RH
HMP Series with MMP8 and TMP1 User Guide M212022EN-F
9. Technical data
9.1 HMP1 specifications
Table 6 HMP1 measurement performance
Property Description/Value
Relative humidity
Measurement range 0 … 100 %RH
Accuracy at +23 °C (+73.4 °F) 1)
Factory calibration uncertainty
2)
3)
Non-linearity 0.4 %RH
Sensor HUMICAPâ I
Temperature
Measurement range −40 … +60 °C (−40 … +140 °F)
Accuracy at +23 °C (+73.4 °F) 1)
Factory calibration uncertainty
2)
3)
±1.0 %RH (0 … 90 %RH)
±0.7 %RH (0 … 40 %RH)
±1 %RH (40 … 95 %RH)
±0.2 °C (±0.36 °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) In typical room conditions.
3) Defined as ±2 standard deviation limits. Small variations possible; see calibration certificate.
Figure 33 HMP1 humidity measurement accuracy as a function of temperature
64
0
0.1
0.2
0.3
0.4
Accuracy [± °C]
Temperature [°C]
-40
-30
-20
-10
0
10
20
30
40
50
60
0.5
Chapter 9 – Technical data
Figure 34 HMP1 temperature measurement accuracy over full range
Table 7 HMP1 operating environment
Property Description/Value
Operating temperature −40 … +60 °C (−40 … +140 °F)
Storage temperature −40 … +60 °C (−40 … +140 °F)
Measurement environment For air, nitrogen, hydrogen, argon, helium, and
oxygen
1)
IP rating IP50: Limited protection against dust
1) Consult Vaisala if other chemicals are present. Consider safety regulations with flammable
gases.
Table 8 HMP1 inputs and outputs
Property Description/Value
Operating voltage 15 … 30 V DC
Current consumption 2 mA typical, 200 mA max.
Digital output RS-485, non-isolated
Protocol Modbus RTU
Table 9 HMP1 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)
65
112 [4.41]
162 [6.38]
Ø 25
[0.98]
M12/5
Ø 5
[0.20]
16
[0.63]
50 [1.97]
mm
[in]
HMP Series with MMP8 and TMP1 User Guide M212022EN-F
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)
Table 10 HMP1 compliance
Property Value/Description
EU directives EMC Directive (2014/30/EU)
RoHS Directive (2011/65/EU)
EMC compatibility EN 61326‑1, industrial environment
Compliance marks CE, China RoHS, RCM, WEEE
Table 11 HMP1 mechanical specifications
Property Description/Value
Connector M12 5-pin A-coded male
Weight 38 g (1.34 oz)
Materials
Probe AISI 316L
Probe body PBT
Figure 35 HMP1 probe dimensions
66
Chapter 9 – Technical data
9.2 HMP3 specifications
Table 12 HMP3 measurement performance
Property Description/Value
Relative humidity
Measurement range 0 … 100 %RH
Accuracy at +23 °C (+73.4 °F)
Factory calibration uncertainty
1)
2)
T63 response time 15 s
Sensor options HUMICAPâ R2
Temperature
Sensor Pt100 RTD Class F0.1 IEC 60751
Measurement range −40 … +120 °C (−40 … +248 °F)
Accuracy 1)
Factory calibration uncertainty
5)
2)
±0.8 %RH (0 … 90 %RH)
±0.5 %RH (0 … 40 %RH)
±0.8 %RH (40 … 95 %RH)
HUMICAPâ R2C
HUMICAPâ 180VC 3)
3)
4)
±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) Chemical purge feature available with this sensor
4) H2O2 resistant. With HUMICAPâ 180VC sensor, accuracy is not specified below −20 °C
(−4 °F) operating temperature.
5) Exposing temperature sensor to temperatures outside −20 … +150 °C (−4 … +302 °F) may
cause permanent additional deviation of ±0.1 °C (0.18 °F)
67
0.0
0.5
1.0
1.5
2.0
2.5
3.0
-40
-30
-20
-10
0
10
20
30
40
50
60
70
80
90
100
110
120
Accuracy [+/- % RH]
Temperature [°C]
3.5
4.0
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
HMP Series with MMP8 and TMP1 User Guide M212022EN-F
Figure 36 HMP3 humidity measurement accuracy as a function of temperature
Figure 37 HMP3 temperature measurement accuracy over full range
Table 13 HMP3 operating environment
Property Description/Value
Operating temperature of probe head −40 … +120 °C (−40 … +248 °F)
Operating temperature of probe body −40 … +80 °C (−40 … +176 °F)
Storage temperature −40 … +80 °C (−40 … +176 °F)
Operating environment Suitable for outdoor use
Measurement environment For air, nitrogen, hydrogen, argon, helium, and
IP rating of probe body IP66: Dust-tight. Protected from powerful water
1)
oxygen
jets from any direction.
1) Consult Vaisala if other chemicals are present. Consider safety regulations with flammable
gases.
68
Chapter 9 – Technical data
Table 14 HMP3 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
Protocols Modbus RTU
Table 15 HMP3 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 16 HMP3 compliance
Property Value/Description
EU directives EMC Directive (2014/30/EU)
RoHS Directive (2011/65/EU)
EMC compatibility EN 61326‑1, industrial environment
Compliance marks CE, China RoHS, RCM, WEEE
Table 17 HMP3 mechanical specifications
Property Description/Value
Connector M12 5-pin A-coded male
Weight 302 g (10.65 oz)
Materials
Probe AISI 316L
69
136 [5.35]
Probe cable 2 m [6.56 ft]
Ø 25
[0.98]
M12/5
98.5 [3.88]
78.5 [3.09]
37.5 [1.48]
Ø 5
[0.2]
Ø 12
[0.47]
M9x1
mm
[in]
HMP Series with MMP8 and TMP1 User Guide M212022EN-F
Property Description/Value
Probe body AISI 316L
Cable jacket FEP
Figure 38 HMP3 probe dimensions
9.3
HMP4 specifications
Table 18 HMP4 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 options HUMICAPâ R2
70
1)
2)
±0.8 %RH (0 … 90 %RH)
±0.5 %RH (0 … 40 %RH)
±0.8 %RH (40 … 95 %RH)
HUMICAPâ R2C
3)
0.0
0.5
1.0
1.5
2.0
2.5
3.0
-40
-30
-20
-10
0
10
20
30
40
50
60
70
80
90
100
110
120
Accuracy [+/- % RH]
Temperature [°C]
3.5
130
140
150
160
170
180
4.0
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
130
140
150
160
170
180
0.5
-70
-60
-50
Chapter 9 – Technical data
Property Description/Value
Temperature
Measurement range −70 … +180 °C (−94 … +356 °F)
Accuracy 1)
4)
Factory calibration uncertainty
2)
±0.1 °C (±0.18 °F)
±0.1 °C (±0.18 °F) at +23 °C (+73.4 °F)
Sensor Pt100 RTD Class F0.1 IEC 60751
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) Chemical purge feature available with this sensor
4) Exposing temperature sensor to temperatures outside −20 … +150 °C (−4 … +302 °F) may
cause permanent additional deviation of ±0.1 °C (0.18 °F)
Figure 39 HMP4 humidity measurement accuracy as a function of temperature
Figure 40 HMP4 temperature measurement accuracy over full range
71
HMP Series with MMP8 and TMP1 User Guide M212022EN-F
Table 19 HMP4 operating environment
Property Description/Value
Operating temperature of probe body −40 … +80 °C (−40 … +176 °F)
Operating temperature of probe head −70 … +180 °C (−94 … +356 °F)
Operational pressure < 100 bar
Operating environment Suitable for outdoor use
Measurement environment For air, nitrogen, hydrogen, argon, helium,
oxygen, and vacuum
1)
IP rating of probe body IP66: Dust-tight. Protected from powerful water
jets from any direction.
1) Consult Vaisala if other chemicals are present. Consider safety regulations with flammable
gases.
Table 20 HMP4 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
Protocols Modbus RTU
Table 21 HMP4 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)
72
136 [5.35]
Probe cable 2 m [6.56 ft]
Ø 25
[0.98]
M12/5
183 [7.20]
120 [4.72]
41 [1.61]
Ø 5
[0.2]
Fitting body NPT1/2” or M22×1.5
with sealing ring Ø22×27×1.5 Cu
Ø 12
[0.47]
32 mm 27 mm
mm
[in]
Chapter 9 – Technical data
Table 22 HMP4 compliance
Property Value/Description
EU directives EMC Directive (2014/30/EU)
RoHS Directive (2011/65/EU)
EMC compatibility EN 61326‑1, industrial environment
Compliance marks CE, China RoHS, RCM, WEEE
Table 23 HMP4 mechanical specifications
Property Description/Value
Connector M12 5-pin A-coded male
Fitting body M22×1.5 or NPT1/2”
Weight 530 g (18.7 oz)
Materials
Probe AISI 316
Probe body AISI 316
Cable jacket FEP
Figure 41 HMP4 probe dimensions
73
HMP Series with MMP8 and TMP1 User Guide M212022EN-F
9.4 HMP5 specifications
Table 24 HMP5 measurement performance
Property Description/Value
Relative humidity
Measurement range 0 … 100 %RH
Accuracy at +23 °C (+73.4 °F)
Factory calibration uncertainty
1)
2)
T63 response time 15 s
Sensor options HUMICAPâ R2
Temperature
Measurement range −70 … +180 °C (−94 … +356 °F)
Accuracy at +23 °C (+73.4 °F) 1)
Factory calibration uncertainty
4)
2)
Sensor Pt100 RTD Class F0.1 IEC 60751
±0.8 %RH (0 … 90 %RH)
±0.5 %RH (0 … 40 %RH)
±0.8 %RH (40 … 95 %RH)
HUMICAPâ R2C
3)
±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) Chemical purge feature available with this sensor
4) Exposing temperature sensor to temperatures outside −20 … +150 °C (−4 … +302 °F) may
cause permanent additional deviation of ±0.1 °C (0.18 °F)
74
0.0
0.5
1.0
1.5
2.0
2.5
3.0
-40
-30
-20
-10
0
10
20
30
40
50
60
70
80
90
100
110
120
Accuracy [+/- % RH]
Temperature [°C]
3.5
130
140
150
160
170
180
4.0
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
130
140
150
160
170
180
0.5
-70
-60
-50
Chapter 9 – Technical data
Figure 42 HMP5 humidity measurement accuracy as a function of temperature
Figure 43 HMP5 temperature measurement accuracy over full range
Table 25 HMP5 operating environment
Property Description/Value
Operating temperature of probe body −40 … +80 °C (−40 … +176 °F)
Operating temperature of probe head −70 … +180 °C (−94 … +356 °F)
Operating environment Suitable for outdoor use
IP rating of probe body IP66: Dust-tight. Protected from powerful water
jets from any direction.
75
HMP Series with MMP8 and TMP1 User Guide M212022EN-F
Table 26 HMP5 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
Protocols Modbus RTU
Table 27 HMP5 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 28 HMP5 compliance
Property Value/Description
EU directives EMC Directive (2014/30/EU)
RoHS Directive (2011/65/EU)
EMC compatibility EN 61326‑1, industrial environment
Compliance marks CE, China RoHS, RCM, WEEE
Table 29 HMP5 mechanical specifications
Property Description/Value
Connector M12 5-pin A-coded male
Weight 436 g (15.37 oz)
Materials
Probe AISI 316L
76
Property Description/Value
136 [5.35]
Ø 25
[0.98]
M12/5
41 [1.61]
253 [9.96]
243 [9.57]
Ø 12
[0.47]
Ø 13.5
[0.53]
Probe cable
2 m [6.56 ft] or 10 m [32.8 ft]
Ø 5
[0.2]
mm
[in]
Probe body AISI 316L
Cable jacket FEP
Chapter 9 – Technical data
Figure 44 HMP5 probe dimensions
9.5
HMP7 specifications
Table 30 HMP7 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
1)
2)
±0.8 %RH (0 … 90 %RH)
±0.5 %RH (0 … 40 %RH)
±0.8 %RH (40 … 95 %RH)
77
0.0
0.5
1.0
1.5
2.0
2.5
3.0
-40
-30
-20
-10
0
10
20
30
40
50
60
70
80
90
100
110
120
Accuracy [+/- % RH]
Temperature [°C]
3.5
130
140
150
160
170
180
4.0
90 ... 100 %RH
0 ... 90 %RH
HMP Series with MMP8 and TMP1 User Guide M212022EN-F
Property Description/Value
Sensor options HUMICAPâ R2
HUMICAPâ R2C
HUMICAPâ 180VC 3)
3)
4)
Temperature
Measurement range −70 … +180 °C (−94 … +356 °F)
Accuracy at +23 °C (+73.4 °F) 1)
Factory calibration uncertainty
5)
2)
±0.1 °C (±0.18 °F)
±0.1 °C (±0.18 °F) at +23 °C (+73.4 °F)
Sensor Pt100 RTD Class F0.1 IEC 60751
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) Chemical purge feature available with this sensor
4) H2O2 resistant. With HUMICAPâ 180VC sensor, accuracy is not specified below −20 °C
(−4 °F) operating temperature.
5) Exposing temperature sensor to temperatures outside −20 … +150 °C (−4 … +302 °F) may
cause permanent additional deviation of ±0.1 °C (0.18 °F)
Figure 45 HMP7 humidity measurement accuracy as function of temperature
78
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
130
140
150
160
170
180
0.5
-70
-60
-50
Chapter 9 – Technical data
Figure 46 HMP7 temperature measurement accuracy over full range
Table 31 HMP7 operating environment
Property Description/Value
Operating temperature of probe body −40 … +80 °C (−40 … +176 °F)
Operating temperature of probe head −70 … +180 °C (−94 … +356 °F)
Operational pressure < 10 bar
Operating environment Suitable for outdoor use
Measurement environment For air, nitrogen, hydrogen, argon, helium,
oxygen, and vacuum
1)
IP rating of probe body IP66: Dust-tight. Protected from powerful water
jets from any direction.
1) Consult Vaisala if other chemicals are present. Consider safety regulations with flammable
gases.
Table 32 HMP7 inputs and outputs
Property Description/Value
Operating voltage 18 … 30 V DC
Current consumption 10 mA typical, 500 mA max.
Digital output RS-485, non-isolated
Protocols Modbus RTU
Table 33 HMP7 output parameters
Output parameter name and unit
Absolute humidity (g/m3)
Relative humidity (%RH)
79
HMP Series with MMP8 and TMP1 User Guide M212022EN-F
Output parameter name and unit
Absolute humidity at NTP (g/m3)
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 34 HMP7 compliance
Property Value/Description
EU directives EMC Directive (2014/30/EU)
RoHS Directive (2011/65/EU)
EMC compatibility EN 61326‑1, industrial environment
Compliance marks CE, China RoHS, RCM, WEEE
Table 35 HMP7 mechanical specifications
Property Description/Value
Connector M12 5-pin A-coded male
Weight 310 g (10.9 oz)
Materials
Probe AISI 316L
Probe body AISI 316L
Cable jacket FEP
80
136 [5.35]
Ø 25
[0.98]
M12/5
Ø 12
[0.47]
99.5 [3.92]
79.5 [3.13]
37.5 [1.48]
Groove for
lock ring
Ø 12
[0.47]
Ø 5
[0.2]
Probe cable
2 m [6.56 ft] or 10 m [32.8 ft]
mm
[in]
Figure 47 HMP7 probe dimensions
9.6
HMP8 specifications
Chapter 9 – Technical data
Table 36 HMP8 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 options HUMICAPâ R2
Temperature
Measurement range −70 … +180 °C (−94 … +356 °F)
Accuracy at +23 °C (+73.4 °F) 1) 1)
1)
2)
±0.8 %RH (0 … 90 %RH)
±0.5 %RH (0 … 40 %RH)
±0.8 %RH (40 … 95 %RH)
HUMICAPâ R2C
4)
±0.1 °C (±0.18 °F)
3)
81
0.0
0.5
1.0
1.5
2.0
2.5
3.0
-40
-30
-20
-10
0
10
20
30
40
50
60
70
80
90
100
110
120
Accuracy [+/- % RH]
Temperature [°C]
3.5
130
140
150
160
170
180
4.0
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
130
140
150
160
170
180
0.5
-70
-60
-50
HMP Series with MMP8 and TMP1 User Guide M212022EN-F
Property Description/Value
Factory calibration uncertainty
2)
±0.1 °C (±0.18 °F) at +23 °C (+73.4 °F)
Sensor Pt100 RTD Class F0.1 IEC 60751
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) Chemical purge feature available with this sensor
4) Exposing temperature sensor to temperatures outside −20 … +150 °C (−4 … +302 °F) may
cause permanent additional deviation of ±0.1 °C (0.18 °F)
Figure 48 HMP8 humidity measurement accuracy as a function of temperature
Figure 49 HMP8 temperature measurement accuracy over full range
82
Chapter 9 – Technical data
Table 37 HMP8 operating environment
Property Description/Value
Operating temperature of probe body −40 … +80 °C (−40 … +176 °F)
Operating temperature of probe head −70 … +180 °C (−94 … +356 °F)
Operational pressure < 40 bar
Operating environment Suitable for outdoor use
Measurement environment For air, nitrogen, hydrogen, argon, helium,
oxygen, and vacuum
1)
IP rating of probe body IP66: Dust-tight. Protected from powerful water
jets from any direction.
1) Consult Vaisala if other chemicals are present. Consider safety regulations with flammable
gases.
Table 38 HMP8 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
Protocols Modbus RTU
Table 39 HMP8 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)
83
136 [5.35]
Probe cable 2 m [6.56 ft]
Ø 25
[0.98]
M12/5
Ø 12
[0.47]
41 [1.61]
Ø 13.5
[0.53]
Fitting body
ISO1/2” or NPT1/2”
Ø 5
[0.2]
268 [10.55]
230 [9.06]
41 ... 185 [1.16 ... 7.28]
mm
[in]
HMP Series with MMP8 and TMP1 User Guide M212022EN-F
Table 40 HMP8 compliance
Property Value/Description
EU directives EMC Directive (2014/30/EU)
RoHS Directive (2011/65/EU)
EMC compatibility EN 61326‑1, industrial environment
Compliance marks CE, China RoHS, RCM, WEEE
Table 41 HMP8 mechanical specifications
Property Description/Value
Connector M12 5-pin A-coded male
Probe fitting ISO1/2” and NPT1/2” fittings included
Weight 512 g (18.1 oz)
Materials
Probe AISI 316L
Probe body AISI 316L
Cable jacket FEP
Figure 50 HMP8 probe dimensions
84
Ø 21.5 [0.83]
(drilling)
Ø 14 [0.55]
Ø 14 [0.55]
195 [7.67]
ISO1/2” fitting body
supplied with HMP8
ISO1/2”
80 [3.15]
mm
[in]
Chapter 9 – Technical data
Figure 51 Optional ball valve installation kit dimensions
9.7
HMP9 specifications
Table 42 HMP9 measurement performance
Property Description/Value
Relative humidity
Measurement range 0 … 100 %RH
Accuracy at +23 °C (+73.4 °F)
Factory calibration uncertainty
Non-linearity 0.4 %RH
T63 response time
Sensor HUMICAPâ I
Temperature
Measurement range −40 … +120 °C (−40 … +248 °F)
Accuracy at +23 °C (+73.4 °F)
Factory calibration uncertainty
T63 response time
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) In still air
3)
3)
1)
2)
1)
2)
±0.8 %RH (0 … 90 %RH)
±0.7 %RH (0 … 40 %RH)
±1 %RH (40 … 95 %RH)
15 s
±0.1 °C (±0.18 °F)
±0.1 °C (±0.18 °F) at +23 °C (+73.4 °F)
70 s
85
0.0
0.5
1.0
1.5
2.0
2.5
3.0
-40
-30
-20
-10
0
10
20
30
40
50
60
70
80
90
100
110
120
Accuracy [+/- % RH]
Temperature [°C]
3.5
4.0
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
0.5
HMP Series with MMP8 and TMP1 User Guide M212022EN-F
Figure 52 HMP9 humidity measurement accuracy as a function of temperature
Figure 53 HMP9 temperature measurement accuracy over full range
Table 43 HMP9 operating environment
Property Description/Value
Operating temperature of probe body −40 … +60 °C (−40 … +140 °F)
Operating temperature of probe head −40 … +120 °C (−40 … +248 °F)
Storage temperature −40 … +60 °C (−40 … +140 °F)
Operating environment Suitable for outdoor use when protected from
rain
Measurement environment For air, nitrogen, hydrogen, argon, helium, and
86
oxygen
1)
Chapter 9 – Technical data
Property Description/Value
IP rating of probe body IP65: Dust-tight. Protected from water jets from
any direction.
1) Consult Vaisala if other chemicals are present. Consider safety regulations with flammable
gases.
Table 44 HMP9 inputs and outputs
Property Description/Value
Operating voltage 15 … 30 V DC
Current consumption 5 mA typical, 400 mA max.
Digital output RS-485, non-isolated
Default serial settings 19200 bps N 8 2
Protocol Modbus RTU
Table 45 HMP9 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 46 HMP9 compliance
Property Value/Description
EU directives EMC Directive (2014/30/EU)
RoHS Directive (2011/65/EU)
EMC compatibility EN 61326‑1, industrial environment
Compliance marks CE, China RoHS, RCM, WEEE
87
112 [4.41]
Probe cable 2 m [6.56 ft]
Ø 25
[0.98]
M12/5
94 [3.70]
Ø 2.4
[0.094]
Ø 5 ±0.05
[0.20 ±0.002]
16 [0.63]
Attachment point
mm
[in]
HMP Series with MMP8 and TMP1 User Guide M212022EN-F
Table 47 HMP9 mechanical specifications
Property Description/Value
Connector M12 5-pin A-coded male
Weight 68 g (2.40 oz)
Probe cable length 2 m (6.6 ft)
Materials
Probe AISI 316L
Probe body PBT
Cable overmolds FEP
Figure 54 HMP9 probe dimensions
88
000.1
±0.01
0.2
±0.02
0.3
±0.03
0.4 0.5 0.6 0.7 0.8
0.9
1.0
±0.04
a
w
reading accuracy
aw reference
T = 0 … +80 °C
T = −40 … 0 °C, +80 ... +180 °C
Chapter 9 – Technical data
9.8 MMP8 specifications
Table 48 MMP8 measurement performance
Property Description/Value
Water activity
Measurement range 0 … 1 a
T90 response time
1)
Sensor HUMICAPâ 180L2
Accuracy
2)
Temperature
Measurement range −40 … +180 °C (−40 … +356 °F)
Accuracy at +20 °C (+68 °F) ±0.2 °C (0.36 °F)
1) At +20 °C (+68 °F) in still oil.
2) In range 0 … 0.5 aw, including non-linearity, hysteresis, and repeatability. See accuracy graph
below.
w
10 min
±0.01 aw (±1 %RS)
Figure 55 MMP8 Aw measurement accuracy
Table 49 MMP8 operating environment
Operating temperature of probe head −40 … +180 °C (−40 … +356 °F)
Operating temperature of probe body −40 … +80 °C (−40 … +176 °F)
Storage temperature range −40 … +80 °C (−40 … +176 °F)
Operating pressure range 0 … 40 bar (0 … 580 psia)
Installation pressure Up to 10 bar (145 psia)
Property Description/Value
89
HMP Series with MMP8 and TMP1 User Guide M212022EN-F
Property Description/Value
IP rating of probe body IP66: Dust-tight. Protected from powerful water
jets from any direction.
Ball valve
Operating temperature Up to +120 °C (+248 °F)
Operating pressure Up to 40 bar (0 … 580 psia)
Table 50 MMP8 inputs and outputs
Property Description/Value
Operating voltage 15 … 30 V DC
Current consumption 10 mA typical
Digital output RS-485, non-isolated
Protocols Modbus RTU
Output parameters Relative saturation (%RS)
Temperature (°C)
Water activity
Water mass fraction (ppmw)
Table 51 MMP8 compliance
Property Value/Description
EU directives EMC Directive (2014/30/EU)
RoHS Directive (2011/65/EU)
EMC compatibility EN 61326‑1, industrial environment
Compliance marks CE, China RoHS, RCM, WEEE
Table 52 MMP8 mechanical specifications
Property Description/Value
Connector M12 5-pin A-coded male
Weight 510 g (18.0 oz)
Filter options Stainless steel grid standard filter
Stainless steel grid filter for high flow rates (> 1
m/s)
Probe cable length 2 m (6.56 ft)
90
136 [5.35]
Probe cable 2 m [6.56 ft]
Ø 25
[0.98]
M12/5
Ø 5
[0.2]
262 [10.32]
224 [8.82]
35 ... 179 [1.37 ... 7.05]
35 [1.37]
Ø 13.5
[0.53]
Fitting body
ISO1/2” or NPT1/2”
Ø 12
[0.47]
mm
[in]
Chapter 9 – Technical data
Property Description/Value
Adjustable installation depth 35 … 179 mm (1.37 … 7.05 in)
Materials
Probe AISI 316L
Probe body AISI 316L
Cable jacket FEP
Figure 56 MMP8 dimensions
9.9
TMP1 specifications
Table 53 TMP1 measurement performance
Property Description/Value
Measurement range −70 … +180 °C (−94 … +356 °F)
Accuracy at +23 °C (+73.4 °F) 1)
Factory calibration uncertainty
3)
2)
±0.1 °C (±0.18 °F)
±0.1 °C (±0.18 °F) at +23 °C (+73.4 °F)
91
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
130
140
150
160
170
180
0.5
-70
-60
-50
HMP Series with MMP8 and TMP1 User Guide M212022EN-F
Property Description/Value
Sensor Pt100 RTD Class F0.1 IEC 60751
1) Defined against calibration reference. Including non-linearity, hysteresis, and repeatability.
2) Exposing temperature sensor to temperatures outside −20 … +150 °C (−4 … +302 °F) may
cause permanent additional deviation of ±0.1 °C (0.18 °F)
3) Defined as ±2 standard deviation limits. Small variations possible; see calibration certificate.
Figure 57 TMP1 temperature measurement accuracy over full range
Table 54 TMP1 operating environment
Property Description/Value
Operating temperature of probe body −40 … +80 °C (−40 … +176 °F)
Operating temperature of probe head −70 … +180 °C (−94 … +356 °F)
Operating environment Suitable for outdoor use
IP rating
Probe body IP66: Dust-tight. Protected from powerful water
jets from any direction.
Probe head and cable IPX8/IPX9: Protected against high pressure and
temperature water jets. Protected from the
eects of continuous immersion in water. Tested
under the following conditions:
• Immersion depth: 150 cm (59 in)
• Immersion time: 60 min
Table 55 TMP1 inputs and outputs
Property Description/Value
Operating voltage 15 … 30 V DC
92
Chapter 9 – Technical data
Property Description/Value
Current consumption 10 mA typical
Digital output RS-485, non-isolated
Protocols Modbus RTU
Output parameters Temperature (°C)
Water vapor saturation pressure (hPa)
Table 56 TMP1 compliance
Property Value/Description
EU directives EMC Directive (2014/30/EU)
RoHS Directive (2011/65/EU)
EMC compatibility EN 61326‑1, industrial environment
Compliance marks CE, China RoHS, RCM, WEEE
Table 57 TMP1 mechanical specifications
Property Description/Value
Connector M12 5-pin A-coded male
Weight 224 g (7.9 oz)
Materials
Probe AISI 316L
Probe body AISI 316L
Cable jacket FEP
93
130 [5.12]
136 [5.35]
Ø 25
[0.98]
M12/5
Ø 3.2
[0.13]
Probe cable
2 m [6.56 ft] or 10 m [32.8 ft]
mm
[in]
Ø 6
[0.24]
135 ... 370 [5.31 ... 14.56]
50 [1.96]
75 [2.95]
mm
[in]
HMP Series with MMP8 and TMP1 User Guide M212022EN-F
Figure 58 TMP1 probe dimensions
Figure 59 Optional duct kit 215003 dimensions
9.10
94
Accessories and spare parts
Information on spare parts, accessories, and calibration products is available
online at www.vaisala.com and store.vaisala.com.
Chapter 9 – Technical data
Connection cables
Table 58 Connection cables
Description Item code
Connection cable, M12-5F - M12-5M, 1 m INDIGOCABLE1M
Connection cable, M12-5F - M12-5M, 3 m INDIGOCABLE3M
Connection cable, M12-5F - M12-5M, 5 m INDIGOCABLE5M
Connection cable, M12-5F - M12-5M, 10 m INDIGOCABLE10M
Connection cable, M12-5F - open wires, 1.5 m 223263SP
Connection cable, M12-5F - open wires, 10 m 216546SP
Connection cable, M12-5F 90° - open wires,
0.6 m
Flat cable, M12-5F - M12-5M, 1 m CBL210493SP
Vaisala Indigo USB adapter
1) Vaisala Insight software for Windows available at www.vaisala.com/insight
1)
244669SP
USB2
HMP3
Table 59 HMP3 accessories
Description Item code
Duct installation kit 210697
Solar radiation shield DTR502B DTR502B
Table 60 HMP3 spare parts
Description Item code
Sensors
HUMICAPâ R2 HUMICAPR2
Filters
Sintered stainless steel filter HM47280SP
Stainless steel grid filter HM47453SP
Metallized PPS plastic grid filter DRW010276SP
Metallized PPS plastic grid with stainless steel
mesh filter
DRW010281SP
95
HMP Series with MMP8 and TMP1 User Guide M212022EN-F
HMP4
Table 61 HMP4 spare parts
Description Item code
Sintered stainless steel filter HM47280SP
Stainless steel grid HM47453SP
Metallized PPS plastic grid with stainless steel
mesh filter
Metallized PPS plastic grid filter DRW010276SP
DRW010281SP
HMP5
Table 62 HMP5 accessories
Description Item code
Mounting flange 210696
Table 63 HMP5 spare parts
Description Item code
Sintered stainless steel filter HM47280SP
Stainless steel grid HM47453SP
Metallized PPS plastic grid with stainless steel
mesh filter
Metallized PPS plastic grid filter DRW010276SP
DRW010281SP
HMP7
Table 64 HMP7 accessories
Description Item code
Duct installation kit for RH probe 210697
Solar radiation shield DTR502B DTR502B
Cable gland M20×1.5 with split seal HMP247CG
Swagelokâ for 12 mm probe, 1/2" ISO thread SWG12ISO12
Swagelokâ for 12 mm probe, 3/8" ISO thread SWG12ISO38
Swagelokâ for 12 mm probe, 1/2" NPT thread SWG12NPT12
96
Table 65 HMP7 spare parts
Description Item code
Sintered stainless steel filter HM47280SP
Stainless steel grid HM47453SP
Metallized PPS plastic grid with stainless steel
mesh filter
Metallized PPS plastic grid filter DRW010276SP
DRW010281SP
HMP8
Table 66 HMP8 accessories
Description Item code
Ball valve 1/2" with ISO 1/2" welding joint BALLVALVE-1
Table 67 HMP8 spare parts
Description Item code
Sintered stainless steel filter HM47280SP
Stainless steel grid HM47453SP
Metallized PPS plastic grid with stainless steel
mesh filter
Metallized PPS plastic grid filter DRW010276SP
DRW010281SP
Chapter 9 – Technical data
HMP9
Table 68 HMP9 accessories
Description Item code(s)
HMP9 calibration adapter for HMK15 ASM213801
HMP9 duct installation kit ASM214055
Solar radiation shield DTR502B with sensor
head support 215130
DTR502B and 215130
97
HMP Series with MMP8 and TMP1 User Guide M212022EN-F
MMP8
Table 69 MMP8 accessories
Description Item code
Ball valve ISO 1/2" with welding joint BALLVALVE-1
Ball valve ISO 1/2" with thread joint ISO 3/4" BALLVALVE-2
Table 70 MMP8 spare parts
Description Item code
Stainless steel grid filter HM47453
Stainless steel grid filter for high flow rates (> 1
m/s)
220752
TMP1
Table 71 TMP1 accessories
Description Item code
Duct installation kit for T probe 215003
Swagelokâ for 6 mm probe 1/8" ISO thread SWG6ISO18
Swagelokâ for 6 mm probe 1/8" NPT thread SWG6NPT18
98
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