Vaisala TMP1, HMP9, MMP8, HMP8, HMP7 User Manual

M212022EN-D

User Guide

Vaisala Indigo compatible humidity and temperature probes

HMP3, HMP4, HMP5, HMP7, HMP8, HMP9, MMP8, TMP1

PUBLISHED BY

Vaisala Oyj

Vanha Nurmijärventie 21, FI-01670 Vantaa, Finland P.O. Box 26, FI-00421 Helsinki, Finland

[phone]

Visit our Internet pages at www.vaisala.com.

© Vaisala Oyj 2020

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.....................................................................................	7
1.1	Version information..........................................................................................	7
1.2	Related manuals................................................................................................	7
1.3	Documentation conventions...........................................................................	8
1.4	Trademarks........................................................................................................	8
2.	Product overview............................................................................................	9
2.1	Probe structure.................................................................................................	9
2.2	Basic features and options..............................................................................	9
2.3	Output parameters.........................................................................................	10
2.4	Additional features with Indigo 200 series transmitters.............................	11
2.5	Safety.................................................................................................................	11
2.6	ESD protection.................................................................................................	12
2.7	Regulatory compliances.................................................................................	12
2.7.1	FCC Part 15 compliance statement.........................................................	12
2.7.2	Canada ICES-003 compliance statement.............................................	13
3.	Installation........................................................................................................	14
3.1	HMP3 probe......................................................................................................	15
3.2	HMP4 probe.....................................................................................................	16
3.3	HMP5 probe......................................................................................................	17
3.4	HMP7 probe......................................................................................................	18
3.5	HMP8 probe.....................................................................................................	19
3.5.1	Attaching ball valve kit to process........................................................	20
3.6	HMP9 probe......................................................................................................	21
3.6.1	Installing HMP9 through a cable gland.................................................	22
3.7	MMP8 probe....................................................................................................	23
3.8	TMP1 probe......................................................................................................	24
3.9	Wiring...............................................................................................................	25
4.	Configuration with Insight software.....................................................	27
4.1	Vaisala Insight software.................................................................................	27
4.2	Installing driver for the USB service cable...................................................	27
4.3	Connecting to Insight software....................................................................	28
4.4	Configuration options....................................................................................	29
5.	Using probe with Indigo transmitters...................................................	31
5.1	Indigo 200 series transmitter overview........................................................	31
5.2	Attaching probe to Indigo 200 series transmitter.....................................	33
5.3	Wireless configuration interface overview..................................................	34
5.4	Connecting to wireless configuration interface..........................................	34
5.5	Logging in to wireless configuration interface...........................................	35
6.	Maintenance....................................................................................................	36
6.1	Cleaning the probe.........................................................................................	36
6.1.1	Chemical tolerance.................................................................................	36

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6.2		Changing the probe filter..............................................................................	37
6.3		Replacing the HUMICAPâ R2 sensor...........................................................	37
6.4		Calibration and adjustment...........................................................................	39
6.4.1		Adjustment points and requirements..................................................	40
6.4.2		Adjusting measurement with Insight software....................................	41
6.4.3		Adjusting measurement with Indigo 200 transmitter........................	42
7.	Troubleshooting............................................................................................		46
7.1		Problem situations.........................................................................................	46
7.2		Error messages...............................................................................................	46
8.	Technical data................................................................................................		49
8.1		HMP3 specifications.......................................................................................	49
8.2		HMP4 specifications.......................................................................................	52
8.3		HMP5 specifications.......................................................................................	55
8.4		HMP7 specifications.......................................................................................	58
8.5		HMP8 specifications........................................................................................	61
8.6		HMP9 specifications.......................................................................................	64
8.7		MMP8 specifications.......................................................................................	67
8.8		TMP1 specifications........................................................................................	70
8.9		Accessories and spare parts..........................................................................	72
Appendix A: Modbus reference...................................................................			77
A.1		Default communication settings...................................................................	77
A.2		Function codes................................................................................................	77
A.3		Data encoding.................................................................................................	77
A.3.1		32-bit floating point or integer format.................................................	78
A.3.2		16-bit integer format...............................................................................	78
A.4		Modbus registers............................................................................................	78
A.4.1		Measurement Data Registers.................................................................	79
A.4.2		Configuration registers...........................................................................	82
A.4.3		Device identification objects.................................................................	85
A.4.4		Status registers........................................................................................	85
A.4.5		Test value registers..................................................................................	87
A.4.6		Modbus communication examples.......................................................	88
Online store.......................................................................................................			91
Warranty.............................................................................................................			91
Technical support.............................................................................................			91
Recycling............................................................................................................			91

2

List of figures

List of figures

Figure	1	Probe parts.........................................................................................................	9
Figure	2	Example installation........................................................................................	14
Figure	3	HMP3 probe dimensions................................................................................	15
Figure	4	HMP4 probe dimensions................................................................................	16
Figure	5	HMP5 probe dimensions................................................................................	17
Figure	6	Optional mounting flange 210696 dimensions.......................................	17
Figure	7	HMP7 probe dimensions................................................................................	18
Figure	8	HMP8 probe dimensions................................................................................	19
Figure	9	HMP9 probe dimensions................................................................................	21
Figure 10		Installing HMP9 probe head through a cable gland..............................	22
Figure	11	MMP8 dimensions...........................................................................................	23
Figure	12	TMP1 probe dimensions................................................................................	24
Figure	13	M12 5-pin A-coded male connector pinout.............................................	25
Figure	14	RS-485 wiring..................................................................................................	25
Figure	15	Connecting probe to Insight........................................................................	29
Figure	16	HMP5 in Insight software..............................................................................	30
Figure	17	HMP7 attached to Indigo 200 series transmitter....................................	31
Figure	18	HMP7 attached to Indigo 200 series transmitter with a cable...........	32
Figure	19	Attaching the probe to Indigo 200 series transmitter.........................	33
Figure 20		Enabling and accessing wireless configuration interface
		of Indigo 200...................................................................................................	34
Figure	21	Indigo login view.............................................................................................	35
Figure 22		HMP3 probe head with filter removed......................................................	38
Figure 23		Calibration page in the Indigo 200 wireless
		configuration interface..................................................................................	44
Figure 24		HMP3 humidity measurement accuracy as a function of
		temperature.....................................................................................................	50
Figure 25		HMP3 temperature measurement accuracy over full range...............	50
Figure 26		HMP3 probe dimensions...............................................................................	52
Figure 27		HMP4 humidity measurement accuracy as a function of
		temperature......................................................................................................	53
Figure 28		HMP4 temperature measurement accuracy over full range...............	53
Figure 29		HMP4 probe dimensions...............................................................................	55
Figure 30		HMP5 humidity measurement accuracy as a function of
		temperature.....................................................................................................	56
Figure	31	HMP5 temperature measurement accuracy over full range...............	56
Figure 32		HMP5 probe dimensions...............................................................................	58
Figure 33		HMP7 humidity measurement accuracy as function of
		temperature......................................................................................................	59
Figure 34		HMP7 temperature measurement accuracy over full range...............	59
Figure 35		HMP7 probe dimensions................................................................................	61
Figure 36		HMP8 humidity measurement accuracy as a function of
		temperature......................................................................................................	62
Figure 37		HMP8 temperature measurement accuracy over full range...............	62
Figure 38		HMP8 probe dimensions..............................................................................	64

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HMP3, HMP4, HMP5, HMP7, HMP8, HMP9, MMP8, TMP1 User Guide		M212022EN-D
Figure 39	Optional ball valve installation kit dimensions.......................................	64
Figure 40	HMP9 probe dimensions...............................................................................	67
Figure 41	Aw measurement accuracy..........................................................................	68
Figure 42	MMP8 dimensions...........................................................................................	69
Figure 43	TMP1 temperature measurement accuracy over full range.................	70
Figure 44	TMP1 probe dimensions.................................................................................	71
Figure 45	Optional duct kit 215003 dimensions........................................................	72

4

List of tables

List of tables

Table	1	Document versions (English)...........................................................................	7
Table	2	Related Manuals...................................................................................................	7
Table	3	Availability of output parameters.................................................................	10
Table	4	Suitability of cleaning agents........................................................................	36
Table	5	Troubleshooting table.....................................................................................	46
Table	6	Measurement performance............................................................................	49
Table	7	Operating environment..................................................................................	50
Table	8	Inputs and outputs............................................................................................	51
Table	9	Mechanical specifications................................................................................	51
Table 10		Measurement performance............................................................................	52
Table	11	Operating environment...................................................................................	54
Table	12	Inputs and outputs...........................................................................................	54
Table	13	Mechanical specifications...............................................................................	54
Table 14		Measurement performance............................................................................	55
Table	15	Operating environment...................................................................................	57
Table	16	Inputs and outputs............................................................................................	57
Table	17	Mechanical specifications...............................................................................	57
Table	18	Measurement performance............................................................................	58
Table	19	Operating environment..................................................................................	60
Table 20		Inputs and outputs...........................................................................................	60
Table	21	Mechanical specifications..............................................................................	60
Table 22		Measurement performance.............................................................................	61
Table 23		Operating environment...................................................................................	63
Table 24		Inputs and outputs...........................................................................................	63
Table 25		Mechanical specifications...............................................................................	63
Table 26		Measurement performance...........................................................................	64
Table 27		Operating environment...................................................................................	65
Table 28		Inputs and outputs...........................................................................................	66
Table 29		Mechanical specifications...............................................................................	66
Table 30		Measurement performance............................................................................	67
Table	31	Operating environment...................................................................................	68
Table 32		Inputs and outputs...........................................................................................	68
Table 33		Mechanical Specifications..............................................................................	69
Table 34		Measurement performance............................................................................	70
Table 35		Operating environment...................................................................................	70
Table 36		Inputs and outputs............................................................................................	71
Table 37		Mechanical specifications................................................................................	71
Table 38		Connection cables.............................................................................................	72
Table 39		Accessories.........................................................................................................	73
Table 40		Spare parts..........................................................................................................	73
Table	41	Spare parts..........................................................................................................	73
Table 42		Accessories.........................................................................................................	73
Table 43		Spare parts..........................................................................................................	74
Table 44		Accessories.........................................................................................................	74
Table 45		Spare parts..........................................................................................................	74

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Table 46	Accessories.........................................................................................................	74
Table 47	Spare parts..........................................................................................................	75
Table 48	Accessories.........................................................................................................	75
Table 49	Accessories.........................................................................................................	75
Table 50	Spare parts..........................................................................................................	75
Table 51	Accessories.........................................................................................................	75
Table 52	Default Modbus serial communication settings.......................................	77
Table 53	Modbus function codes...................................................................................	77
Table 54	16-bit signed integer format details.............................................................	78
Table 55	Floating point measurement data registers (read-only).......................	79
Table 56	Integer measurement data registers (read-only)....................................	80
Table 57	Modbus configuration data registers (writable)......................................	82
Table 58	Device identification objects.........................................................................	85
Table 59	Modbus status data registers (read-only).................................................	85
Table 60	Error codes in register 0203hex.....................................................................	86
Table 61	Modbus test registers (read-only)...............................................................	87

6

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 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-D	March 2020	Added content for HMP3 and MMP8 probe models.
M212022EN-C	June 2019	Applicable from software version 1.0.9 onward. Added
		content for HMP9 probe model. Other added content:
		• Output parameters (page 10)
		•	Adjusting measurement with Indigo 200 transmitter
			(page 42)
		•	Problem situations (page 46)
		• Error messages (page 46)
		•	Status registers (page 85)
		Updated content:
		•	Updated technical specifications and dimension
			drawings of probe models
		• Updated presentation of Modbus register maps
		•	Corrected numbering of decimal registers in section
			Measurement Data Registers (page 79)
M212022EN-B	June 2018	Applicable from software version 1.0.6 onward. Updated
		instructions for connecting to Indigo transmitters.
		Updated sections Measurement Data Registers (page 79)
		and Configuration registers (page 82).

1.2 Related manuals

Table 2 Related Manuals

	Document code	Name
	M211982EN	HMP3, HMP4, HMP5, HMP7, HMP8, HMP9, MMP8, and TMP1 Quick Guide

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1.3 Documentation conventions

WARNING! Warning alerts you to a serious hazard. If you do not read and follow instructions carefully at this point, there is a risk of injury or even death.

CAUTION! Caution warns you of a potential hazard. If you do not read and follow instructions carefully at this point, the product could be damaged or important data could be lost.

Note highlights important information on using the product.

Tip gives information for using the product more efficiently.

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.

All other product or company names that may be mentioned in this publication are trade names, trademarks, or registered trademarks of their respective owners.

8

Chapter 2 – Product overview

2. Product overview

HMP series probes are humidity and temperature measurement probes with a digital output (Modbus 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. 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
	1	Figure 1 Probe parts
		1	Protection cap (remove before use)
	2	2	5-pin M12 connector
		3	Probe body with type label
		4	Status indicator:
	6		Green	Power on and probe online,
	3
				flashes when communicating
			Red	Error
			Off	Power off or indicator
				disabled
	7	5	Probe cable (do not cut)
		6	Probe head (HMP7 model shown)
	4	7	Location of sensor(s) on the probe
			head. Most probe models have a
			removable filter over the sensors that
	8		can be replaced if it gets dirty or
			damaged. Note that HMP9 and TMP1
	5		do not have a removable filter.
		8	Protection cap (remove before use)

2.2 Basic features and options

•Comprehensive list of output parameters. For example: relative humidity, temperature, dew point temperature, wet-bulb temperature, absolute humidity, mixing ratio, water vapor pressure, enthalpy. See Output parameters (page 10).

•Sensor purge provides superior chemical resistance (HMP models only)

•Probe and sensor warming functions minimize condensation on probe (HMP models only)

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•Traceable calibration certificate:

•HMP and MMP models: 6 points for humidity, 1 point for temperature

•TMP1: 2 points for temperature

•Standalone Modbus 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 always locked when chemical purge or extra heat functions are heating the sensor.

Output parameter is available

Output parameter is available but its value is locked during sensor warming or probe heating (HMP7 only) unless temperature is written to register 0334hex from an external

source

Output parameter is not available on this model

Table 3 Availability of output parameters

Output parameter	Output unit	HMP3, 4, 5,	MMP8	TMP1
		7, 8, and 9
Relative humidity	%RH
Temperature	°C
Dew point temperature	°C
Dew/frost point temperature	°C
Dew/frost point temperature at 1 atm	°C
Dew point temperature at 1 atm	°C
Absolute humidity	g/m3
Mixing ratio	g/kg
Wet-bulb temperature	°C
Water concentration	ppmv
Water vapor pressure	hPa
Water vapor saturation pressure	hPa
Enthalpy	kJ/kg
Water activity	-

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Chapter 2 – Product overview

Output parameter	Output unit	HMP3, 4, 5,	MMP8	TMP1
		7, 8, and 9
Dew point temperature difference	°C
Absolute humidity at NTP	g/m3
Water concentration in oil	ppmv
Relative saturation	%RS
Water mass fraction	ppmw

2.4 Additional features with Indigo 200 series transmitters

Connecting the probe to an Indigo transmitter provides a range of additional options for outputs, measurement viewing, status monitoring, and configuration interface access.

Examples of additional features available with Indigo 200 series transmitters include:

•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)

The selection of available additional features (for example, output and connectivity options) varies depending on the Indigo transmitter model. For more information on Indigo transmitters, see www.vaisala.com/indigo.

2.5 Safety

WARNING! When returning a product for calibration or repair, make sure it has not been exposed to dangerous contamination, and is safe to handle without special precautions.

CAUTION! Do not attempt to open the probe body. There are no user serviceable parts inside the probe body.

CAUTION! Do not touch the probe head with your bare hands. Touching will deposit impurities on the probe head.

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CAUTION! Be aware that the probe head may become hot to touch when functions such as chemical purge and probe heating are active.

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 compliances

The probes are in conformity with the provisions of the following EU directives:

•RoHS Directive

•EMC Directive

Conformity is shown by compliance with the following standards:

•EN 50581: Technical documentation for the assessment of electrical and electronic products with respect to the restriction of hazardous substances.

•EN 61326-1: Electrical equipment for measurement, control, and laboratory use – EMC requirements – intended for use in industrial locations.

•EN 55032: Information technology equipment – Radio disturbance characteristics – Limits and methods of measurement.

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 off 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.

•Increase the separation between the equipment and receiver.

•Connect the equipment into an outlet on a circuit different from that of the receiver.

•Consult the dealer or an experienced radio/TV technician for help.

12

Chapter 2 – Product overview

CAUTION! Changes or modifications to this equipment not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.

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.

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3. 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 differs 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.

4

1

3

2

Figure 2 Example installation

1Mount the probe head horizontally to prevent any water condensing on the probe head from running to the sensors.

2Let the cable hang loosely to prevent condensed water from running along the cable to the probe body or probe head.

3Attach the probe body to a wall or other surface using the two mounting clips (Vaisala item 243257SP) supplied with the probe. Each clip attaches to the installation surface with one screw (screw hole Ø 4.2 mm).

4Cable to Modbus master or Indigo transmitter.

CAUTION! The supplied mounting clips are not designed to withstand strong vibration. Use other methods to secure the probe body if necessary. For example, attach the probe body using a cable tie.

More information

Default communication settings (page 77)

14

3.1 HMP3 probe

136 [5.35]

Chapter 3 – Installation

mm

[in]

M12/5

Ø 25 [0.98]

Probe cable 2 m [6.56 ft]

98.5 [3.88]

78.5 [3.09]

37.5 [1.48]

Ø 5 [0.2]

M9x1

Ø 12 [0.47]

Figure 3 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 sufficient 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)

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.

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HMP3, HMP4, HMP5, HMP7, HMP8, HMP9, MMP8, TMP1 User Guide

3.2 HMP4 probe

136 [5.35]

M212022EN-D

mm

[in]

M12/5

Ø 25 [0.98]

Probe cable 2 m [6.56 ft]

183 [7.20]

120 [4.72]

Ø 12 [0.47]

41 [1.61]

Ø 5 [0.2]

				Fitting body NPT1/2” or M22×1.5
32 mm 27 mm				with sealing ring Ø22×27×1.5 Cu

Figure 4 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.

16

3.3 HMP5 probe

136 [5.35]

Chapter 3 – Installation

mm

[in]

M12/5	Ø 25	[0.98]

Ø 5 [0.2]

Figure 5 HMP5 probe dimensions

75 [2.95]

50 [1.96]

Probe cable

2 m [6.56 ft] or 10 m [32.8 ft]

	253 [9.96]
	243 [9.57]
	41 [1.61]
Ø 13.5 [0.53]	Ø 12 [0.47]

19 [0.75]

mm [in]

Figure 6 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)

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•Operating temperature of probe body −40 … +80 °C (−40 … +176 °F)

•250-mm (9.84 in) probe allows easy process installation through insulation

3.4 HMP7 probe

136 [5.35]	mm
	[in]

M12/5	Ø 25	[0.98]

Ø 5 [0.2]

Figure 7 HMP7 probe dimensions

Probe cable

2 m [6.56 ft] or 10 m [32.8 ft]

99.5[3.92]

79.5[3.13]

37.5[1.48]

Ø12 [0.47]
		Groove for
		lock ring

Ø 12 [0.47]

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)

•Probe heating and sensor warming functions minimize condensation on probe

•Vapor and pressure proof construction

Probe heating

HMP7 supports probe heating. Probe heating heats up not only the sensor, but the entire probe head. When probe temperature is heated above dew point temperature, condensation on the probe can be avoided while measuring the dew point temperature of the process.

18

Chapter 3 – Installation

If probe heating is enabled, output parameters that are dependent on temperature measurement (such as relative humidity) are locked whenever probe is heated unless the true temperature of the measured environment is updated to the temperature compensation register of the probe from another measurement instrument (for example, the TMP1 probe). Output parameters such as dew point temperature that can be measured or calculated without this external temperature information are available even without the temperature input.

3.5 HMP8 probe

136 [5.35]

Ø5	[0.2]	mm
		[in]

M12/5	Ø 25	[0.98]

Figure 8 HMP8 probe dimensions

Probe cable 2 m [6.56 ft]

268 [10.55]

230 [9.06]

41 ... 185 [1.16 ... 7.28]

Fitting body

ISO1/2” or NPT1/2”

	41 [1.61]
Ø 13.5 [0.53]	Ø 12 [0.47]

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

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3.5.1 Attaching ball valve kit to process

1

G1/2

ISO 228/1

2

	Ø14
3
4	Ø14

5

Ø14

Ø21.5 (drilling)

1Ball valve handle: must point to the same direction as the ball valve body when installing.

2Extension nipple, threads G1/2 ISO228/1 and R1/2 ISO7/1.

3Ball valve body. When tightening the assembly, turn only from the ball valve body.

4Ball of the ball valve.

5Welding joint, threads R1/2 ISO7/1.

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Chapter 3 – 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! Tightening the ball valve kit by turning the extension nipple 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.

3.6 HMP9 probe

M12/5

Ø 25 [0.98]

112 [4.41]
						mm
						[in]

Probe cable 2 m [6.56 ft]

94 [3.70]

Ø 2.4 [0.094]

Figure 9 HMP9 probe dimensions

Attachment point						16 [0.63]
Ø 5 ±0.05
[0.20 ±0.002]

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.

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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! Do not damage the probe head by bending, crushing, or striking it. Avoid overtightening when installing the probe head through a cable gland.

3.6.1 Installing HMP9 through a cable gland

1

2

3

4

Figure 10 Installing HMP9 probe head through a cable gland

1Black plastic part of the HMP9 probe head

2Nut for tightening the probe in place

3Base of the cable gland

4M10×1.5 threads of the cable gland

•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.

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Chapter 3 – Installation

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.

3.7 MMP8 probe

136 [5.35]

Ø5	[0.2]	mm
		[in]

M12/5	Ø 25	[0.98]

Figure 11 MMP8 dimensions

Probe cable 2 m [6.56 ft]

262[10.32] 224 [8.82]

35 ... 179 [1.37 ... 7.05]

Fitting body

ISO1/2” or NPT1/2”

	35 [1.37]
Ø 13.5 [0.53]	Ø 12 [0.47]

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.

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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 20).

3.8 TMP1 probe

136 [5.35]

mm [in]

M12/5

Ø 25 [0.98]

Probe cable

2 m [6.56 ft] or 10 m [32.8 ft]

130 [5.12]

Ø 3.2 [0.13]

Ø 6 [0.24]

Figure 12 TMP1 probe dimensions

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)

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Chapter 3 – Installation

3.9 Wiring

4	3
	5
1	2

Figure 13 M12 5-pin A-coded male connector pinout

Pin #	Function	Notes	Wire colors in Vaisala cables
1	Power supply	Operating voltage:	Brown
		• HMP7: 18 ... 30 VDC
		• Other models: 15 ... 30 VDC
		Current consumption: 10 mA typical,
		500 mA max.
2	RS-485 -		White
3	Power GND and		Blue
	RS-485 common
4	RS-485 +		Black
5	Not connected		Gray

Probe	RS-485 host
Pin #4	RS-485 +
RS-485 +
Pin #2	RS-485 -
RS-485 -
	RS-485 common
Pin #5
	DC power supply
Pin #1	+
Power supply
Pin #3	-
Power GND
RS-485 common
Figure 14 RS-485 wiring

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Recommended maximum length of the RS-485 line is 30 m (98 ft).

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Chapter 4 – Configuration with Insight software

4. Configuration with Insight software

4.1 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, heating, and serial communication

Microsoft Windowsâ operating system and Vaisala USB cable (no. 242659) required.

Download Vaisala Insight software at www.vaisala.com/insight.

4.2 Installing driver for the USB service cable

Only Windowsâ operating systems are supported by the driver of the USB service cable.

1. Connect the USB service cable to a USB port on your computer. Windowsâ detects the new device and installs the appropriate driver.

2.Open Devices and Printers from the Windowsâ Start menu. Use search to find it if necessary (search for "devices").

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