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M212264EN-B

Quick Guide

HMD60 Series Humidity and Temperature

Transmitters for Ducts in HVAC

HMD65

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.

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.

Table of Contents

English.............................................................................................................................................5

Deutsch........................................................................................................................................ 23

Français.........................................................................................................................................41

Español.........................................................................................................................................59

Português.................................................................................................................................... 77

Русский........................................................................................................................................95

日本語.............................................................................................................117

中文................................................................................................................ 135

3

4 M212264EN-B

Introduction to HMD60 Series

The duct mounted HMD60 HUMICAPâ Humidity and Temperature Transmitters are designed

for monitoring humidity and temperature in demanding HVAC and light industrial applications.

HMD60 series transmitters provide stable, reliable, and highly accurate (up to ±1.5 %RH and

±0.1 °C (0.18 °F)) measurements, and are resistant to chemicals and dust.

HMD60 series transmitter options include the HMD62 and TMD62 analog output transmitters

with loop powered 4 … 20 mA current output, and the analog and digital output transmitter

HMD65 with analog voltage output (0 … 10 V) and digital Modbus RTU and Bacnet output

(RS-485).

Thanks to easy access to electronics also when the transmitter is installed to a duct,

conﬁguration and adjustment can be carried out quickly and conveniently. Available

conﬁguration and adjustment interface options range from physical trimmers and DIP switches

on the transmitter's circuit board to Modbus, BACnet, and Vaisala Insight PC software for

Windowsâ.

HMD65 Basic Features and Options

• Humidity and temperature measurement:

• available humidity parameters: RH, T

d

, T

df

, A, X, T

w

, H

• T measurement in °C or °F

• Analog output: 2 analog 0 … 10 V output channels for humidity and temperature

measurements

• Digital output (RS-485): Modbus RTU and BACnet MS/TP

• Power supply input: 15 … 35 VDC / 16 … 24 VAC

• Conﬁguration and adjustment options:

• RH and T measurement ﬁeld adjustment with trimmers

• Humidity output parameter selection and Modbus/BACnet serial setting conﬁguration

with DIP switches

• Conﬁguration and adjustment with Vaisala Insight PC software

• Conﬁguration with Modbus and BACnet

• Field adjustment with MI70 hand-held indicator

Output Parameter Scaling

• Default temperature analog output scale: -20 … +80 °C (-4 … +176 °F)

• Default scaling for humidity parameters: see Table 2 (page 15).

• To change the default scaling of an analog output parameter, use Vaisala Insight PC

software. See the instructions in HMD65 User Guide.

More Information

For more detailed instructions for installing, conﬁguring, and maintaining the HMD60 series

transmitters, see HMD62 and TMD62 User Guide in English M212016EN and HMD65 User Guide

in English M212243EN available at www.vaisala.com/HMD60.

5

ENGLISH

Transmitter Parts

1

2

3

4

5

6

7

8

9

Figure 1 HMD65 Transmitter Parts Overview

1

Captive screw (2 pcs, cross-head) for attaching the lid of the transmitter.

2 Screw (2 pcs) for mounting the transmitter on the installation surface.

3 Transmitter lid. Open the captive screws of the lid to access input and output electronics.

4 Transmitter base. Contains the input and output connectors on the transmitter board: see

Transmitter Board (page 10).

5 Cable gland (M16 x 1.5 lead-through) for leading wires into the transmitter. See HMD65

User Guide for cable gland and conduit options.

6 Alternative lead-through (M20 x 1.5) for wiring.

7 Probe body. Long (shown) and short probe options available: see Transmitter Dimensions

(page 7).

8 Probe ﬁlter (default option: AISI 316L stainless steel). See HMD65 User Guide for ﬁlter

options.

9 HUMICAPâ sensor inside the probe ﬁlter.

Do not touch the sensor element.CAUTION!

6 M212264EN-B

Installation

Transmitter Dimensions

The dimensions are given in millimeters and [inches].

299 [11.77]

49 [1.92]

250 [9.84]

101 [3.97]

mm

[in]

101 [3.97]

82[3.23]

82 [3.23]

Ø 12 [0.47]

19.5 [0.77]

149 [5.87]

49 [1.92]

100 [3.94]

101 [3.97]

Ø 12 [0.47]

19.5 [0.77]

Figure 2 Dimensions with Long and Short Probe

7

ENGLISH

Duct Mounting Overview

90°

1

4

3

2

5

6

7

Figure 3 Duct Installation Overview

1

Make sure there is a minimum clearance of 5 m (16.5 ft) between the probe body and any

possible humidiﬁer.

2 When installing the transmitter, drill a second hole approximately 30 cm (12 in) from the

installation hole, towards the direction of the air ﬂow, and plug it with a removable seal.

This second hole is intended for later use in reference measurement with another device

when calibrating or adjusting the transmitter.

3 Check that the duct diameter is suitable for the probe body (see Transmitter Dimensions

(page 7)). Ideally, the sensor (probe head) should be installed in the middle of the duct.

4 Maximum air ﬂow speed: 50 m/s (with sintered ﬁlter).

5 Avoid installing the transmitter in dead legs. Supersaturation can occur in areas where

there is no air ﬂow.

6 Do not install the probe in a downward angle. Condensation can travel to the sensor along

the probe body if the probe points down.

7 Install the probe in a 90° angle so that the sensor is placed as close to the middle of the

duct as possible.

Avoid installing in a location where condensation can fall on the

sensor inside the duct.

CAUTION!

8 M212264EN-B

Installing into Duct

• Medium size crosshead screwdriver for mounting screws and lid screws.

• Small slotted screwdriver for screw terminals.

• Drill with 3.5 mm (0.14 in) and 13 … 15 mm (0.51 … 0.59 in) bits for making the

installation holes.

• Tools for cutting and stripping wires.

2 x Ø 3.5 [0.14]

Ø 13 ... 15 [0.51 ... 0.59]

Ø 12 [0.47]

82 [3.23]

mm

[in]

Ø 3.5 [0.14]

3.1 ... 3.4 Nm [2.3 ... 2.5 ft-lbs]

Figure 4 Drilling and Mounting Screws

1. Select an installation location for the transmitter on the duct surface and drill a

Ø 13 … 15 mm (0.51 … 0.59 in) hole for inserting the probe.

2. Push the probe through the hole on the duct until the transmitter body meets the duct.

3. Attach the transmitter body to the duct with 2 Ø 3.5 mm (0.14 in) screws.

Check that the insulation ring sits tightly over the installation hole. If the duct

has a negative pressure, external air can be drawn into the duct and aect

the measurement if the installation hole is not sealed tightly.

4. Optional: Drill a second hole for reference measurements approximately 30 cm (12 in)

from the transmitter installation hole. See Figure 3 (page 8).

5. Open the 2 captive screws on the transmitter body and remove the lid.

6. Attach the input/output wiring to the screw terminals on the transmitter component

board. See Wiring (page 11). Tighten cable glands ﬁrmly after wiring.

7. Check that the DIP switches and trimmers are in the correct position. See Transmitter

Board (page 10) for more information on DIP switches and trimmers.

8. Close the transmitter lid and switch on the transmitter's power supply input.

9

ENGLISH

Transmitter Board

4

5

6

7

8

3

2

1

9

10

11

12

13

Figure 5 HMD65 Transmitter Board: Service Port, DIP switches, Trimmers, and Screw Terminals

1

RS-485 termination (120 Ω resistor) ON/OFF switch.

2 RS-485 (Modbus/BACnet) screw terminals.

3 Power supply input (15 … 35 VDC or 16 … 24 VAC) screw terminals.

4 Service port for MI70 hand-held indicator and Insight PC software cable connection.

5 DIP switches for setting the HMD65 Modbus RTU or BACnet MS/TP MAC address.

6 DIP switches for selecting Modbus/BACnet communication bit rate and parity (Modbus

only).

7 DIP switches for humidity output parameter selection.

8 DIP switch for selecting either Modbus or BACnet mode.

9 Trimmer for humidity measurement adjustment.

10 Screw terminals for humidity measurement output.

11 Screw terminals for temperature measurement output.

12 Trimmer for temperature measurement adjustment.

13 Indicator LEDs: ﬂash when there is RS-485 transmit (TX) or receive (RX) activity.

10 M212264EN-B

Wiring

0 ... 10 V ANALOG OUTPUT WIRING

DIGITAL (RS-485) COMMUNICATION WIRING

CONTROLLER

RS-485 +

RS-485 -

RSGND

HMD65

+

-

V

POWER SUPPLY

(16 ... 24 VAC)

15 ...35 VDC

1)

1) HMD65 GROUNDING SCREW TERMINALS ARE INTERNALLY

CONNECTED TO HMD65 CHASSIS GROUNDING.

CONNECT GROUNDING AS APPLICABLE

TO INSTALLATION SITE WIRING IMPLEMENTATION.

1)

CONTROLLER

+

-

POWER SUPPLY

(16 ... 24 VAC)

15 ...35 VDC

ANALOG INPUT

ANALOG INPUT GROUND

ANALOG INPUT

ANALOG INPUT GROUND

Figure 6 HMD65 Wiring Diagrams (Analog and Digital Output Options)

Make sure that you prepare or connect only de-energized wires.WARNING!

11

ENGLISH

Inputs and Outputs

Table 1 HMD65 Inputs and Outputs

Property Speciﬁcation

Analog output

• 1 x RH output

1)

, 0 … 10 V

• 1 x T output, 0 … 10 V

• Load resistance: 10 kΩ min.

Digital output (RS-485) Isolated, supports Modbus RTU and BACnet

MS/TP protocols

BACnet MS/TP Address range: 0 … 127 (master mode only)

Modbus RTU Address range: 1 … 247

Power supply input

Using a power supply with

overload protection is

recommended for electrical

safety.

15 … 35 VDC

16 … 24 VAC

Power consumption 1.0 W (typical, for both AC and DC)

Service port connector M8 4-pin male connector for MI70 hand-held

indicator (requires cable accessory 219980SP)

or Vaisala Insight PC software cable connection

(requires USB cable accessory 219690)

2)

Cable lead-throughs • M16 x 1.5 lead-through, options available from

Vaisala:

• Cable Gland M16x1.5 (Vaisala order code:

254280SP). This is the default option

delivered with the transmitter.

• Conduit Fitting M16x1.5, ½”NPT (Vaisala

order code: 210675SP)

• Alternative M20 x 1.5 lead-through

Screw terminal wire size

0.5 ... 2.5 mm

2

1) Available calculated parameters for HMD65 include T

d

, T

df

, A, X, T

w

, and H.

2) Vaisala Insight software for Windows available at www.vaisala.com/insight.

Do not modify the unit or use it in ways not described in the

documentation. Improper modiﬁcation may lead to safety hazards, equipment

damage, failure to perform according to speciﬁcation, or decreased equipment

lifetime.

CAUTION!

12 M212264EN-B

Conﬁguration Options

Vaisala Insight Software

Vaisala Insight software is a conﬁguration software for Vaisala Indigo-compatible probes and

transmitters. The supported operating systems are Windows 7 (64-bit), Windows 8.1 (64-bit),

and Windows 10 (64-bit).

To ensure support for your HMD60 series transmitter, download the latest version

of Insight at www.vaisala.com/insight.

With the Insight software, you can:

• See real-time measurements, device information and status.

• Conﬁgure outputs and scaling.

• Calibrate and adjust the device.

HMD60 can be connected to Insight using a Vaisala USB cable (order code 219690).

Connecting to Insight Software

Figure 7 Connecting Transmitter to Insight

1. Open the Insight software.

2. Connect the USB cable to a free USB port on the PC.

3. Connect the USB cable to the service port of the transmitter.

4. Wait for Insight software to detect the transmitter.

13

ENGLISH

Trimmers

1

Figure 8 Component Board Adjustment

Trimmer

1 Use a Phillips head screwdriver to

rotate the RH or T adjustment trimmer.

To increase the measurement output

value, rotate the trimmer clockwise. To

decrease, rotate counterclockwise.

Note that there is a slight delay before

the measurement output changes

after rotating the trimmer.

You can adjust the transmitter's RH or T measurement output with the trimmers on the

component board. During trimmer adjustment, the output of the transmitter is corrected using

the trimmers until the output matches the known value of a reference.

In order to make an adjustment with the trimmers, you need a reference measurement source.

You can either insert a reference instrument into the environment that HMD65 is installed in

and compare the readings of the instruments, or remove HMD65 from the installation

environment and use a calibration and adjustment tool (for example, Vaisala Humidity

Calibrator HMK15) to generate an environment with a known value.

±0 %RH

−1 %RH

−2 %RH

−3 %RH

−4 %RH

−5 %RH

+1 %RH

+2 %RH

+3 %RH

+4 %RH

+5 %RH

±0 °C

−0.06 °C

−0.12 °C

−0.18 °C

−0.24 °C

−0.3 °C

+0.06 °C

+0.12 °C

+0.18 °C

+0.24 °C

+0.3 °C

RH: −5 %RH ... +5 %RH T: −0.3 °C ... +0.3 °C

RH T

Figure 9 RH and T Trimmer Adjustment Ranges (Indicative)

You can only calibrate the relative humidity measurement (RH) and temperature

measurement (T). Other parameters are calculated internally based on RH and T.

Check that the output selection DIP switch is set to RH when making adjustments

with the physical trimmer; when using the Insight PC software, set all DIP

switches to the OFF position. For further information on using the adjustment

trimmers, see HMD65 User Guide.

If you use the Insight PC software to adjust the measurement or to

restore the factory settings, always return the physical trimmer to the middle

position before starting. When you make an adjustment with Insight, the

position in which the trimmer is at that point is set as the ±0 point.

CAUTION!

14 M212264EN-B

DIP Switch Humidity Output Selection

Figure 10 HMD65 DIP Switch Example: T

df

Output Selected

RH Relative humidity

Td Dew point temperature

Tdf Dew point/frost point temperature

A Absolute humidity

X Mixing ratio

Tw Wet-bulb temperature

H Enthalpy

You can change the humidity parameter that is output on the RH channel of HMD65 with the

DIP switches on the component board. Select the parameter you want the transmitter to

output by sliding the parameter's DIP switch to the right (ON). In the example in Figure 10

(page 15), the selected output parameter is dew point/frost point temperature (T

df

). Keep the

other DIP switches in the OFF position (left).

The selected parameter uses the default scaling shown in Table 2 (page 15).

Table 2 HMD65 Default Parameter Scaling

Parameter Default Scaling for 0 … 10 V Output Range

RH 0 … 100 %RH

T

d

-40 ... +80 °C (-40 ... +176 °F)

T

df

-40 ... +80 °C (-40 ... +176 °F)

A

0 … 300 g/m

3

(0 … 131.1 gr/ft

3

)

X 0 … 600 g/kg (0 … 4200 gr/lb)

T

w

-40 ... +80 °C (-40 ... +176 °F)

H -40 … 1600 kJ/kg (-9.5 ... 695.6 Btu/lb)

If you need to change the default scaling of a parameter, conﬁgure the output

with Vaisala Insight PC software. See the instructions in HMD65 User Guide.

If you use the Insight software to further conﬁgure the output, note

that the DIP switch selections override the Insight conﬁguration. When using

Insight to conﬁgure the output, set all humidity parameter DIP switches to the

OFF position (left) to ensure they do not cause a conﬂict with the Insight

settings.

CAUTION!

15

ENGLISH

Modbus and BACnet Communication (RS-485)

3

2

1

7

4 5 6

Figure 11 Modbus and BACnet DIP Switches and Screw Terminals

1 DIP switch for setting RS-485 termination (120 Ω resistor) ON/OFF

2 Screw terminals for RS-485 (Modbus/BACnet) communication

3 Screw terminals for power supply input wiring (15 … 35 VDC / 16 … 24 VAC)

4 DIP switches for setting the device MAC address: see Figure 12 (page 16)

5 DIP switches for setting the communication bitrate (4800 … 115200 bps) and parity (N/E)

6 DIP switch for selecting either Modbus RTU or BACnet MS/TP mode

7 LED indicators for RS-485 transmit/receive activity

Setting Device MAC Address with DIP Switches

Figure 12 MAC Address DIP Switch Example

DIP

switches 32,

8, and 1 set

to ON

The MAC address is

encoded in eight bit binary

form, with each numbered

switch representing a single

bit. This example shows

address 41 selected: DIP

switches 32, 8, and 1

(decimal: 41, binary:

00101001) are set to ON.

Modbus and BACnet MAC Address Ranges

The BACnet MS/TP MAC address range for the transmitter is 0 … 127 (master mode only).

16 M212264EN-B

The Modbus RTU MAC address range for the transmitter is 1 … 247.

Conﬁguring an address above the range maximum results in the address defaulting back to

the maximum address (127 or 247). Addresses below the range minimum default to the

minimum address (0 or 1).

Bit Rate and Parity Options

• The bit rate 4800 is used only for Modbus RTU (use 9600 and above for BACnet MS/TP).

• If the bit rate DIP switches are all set to OFF (left), the following defaults are used:

• Modbus RTU: 19200

• BACnet MS/TP: 38400

• The parity selection (N/E) only has an eect on Modbus RTU communication.

Additional Conﬁguration Options and Further Information

For HMD65 Modbus registers, see Modbus Registers (page 18).

For a description of the HMD65 BACnet protocol implementation and further information on

conﬁguring BACnet, see the BACnet reference documentation in HMD65 User Guide available

at www.vaisala.com/hmd60.

To conﬁgure Modbus and BACnet settings beyond the communication settings available with

DIP switch selections, use Vaisala Insight PC software (see Connecting to Insight Software

(page 13) and instructions in HMD65 User Guide).

17

ENGLISH

Modbus Registers

The Modbus registers available for HMD65 include measurement output registers in metric and

non-metric units, pressure compensation setpoint conﬁguration, status registers, and

communication test registers. For status registers, see HMD65 User Guide.

The Modbus communication settings are conﬁgured using the DIP switches on HMD65

component board: see Modbus and BACnet Communication (RS-485) (page 16).

Registers are numbered in decimal, starting from one. Register

addresses in actual Modbus messages (Modbus Protocol Data Unit (PDU)) start

from zero.

Please check the reference documentation of your Modbus host (PLC) for the

notation of Modbus register addresses.

CAUTION!

16-bit integers have a maximum value of +32767. Certain measurement

parameters can exceed this value when x100 scaling is used (see measurement

registers 0100

hex

… 0107

hex

and 0180

hex

… 0187

hex

). Whenever possible, it is

recommended to use 32-bit ﬂoat values.

Measurement Data Registers

Table 3 Modbus Measurement Data Registers (Read-Only)

Register

Number

(Decimal)

Address

(Hexadecimal)

Register Description Data Format Unit

Floating Point Values (Metric)

1 0000

hex

Relative humidity 32-bit ﬂoat %RH

0001

hex

3 0002

hex

Temperature 32-bit ﬂoat °C

0003

hex

5 0004

hex

Dew point temperature 32-bit ﬂoat °C

0005

hex

7 0006

hex

Dew/frost point

temperature

32-bit ﬂoat °C

0007

hex

9 0008

hex

Absolute humidity 32-bit ﬂoat

g/m

3

0009

hex

11 000A

hex

Mixing ratio 32-bit ﬂoat g/kg

000B

hex

18 M212264EN-B

Register

Number

(Decimal)

Address

(Hexadecimal)

Register Description Data Format Unit

Floating Point Values (Metric)

13 000C

hex

Wet-bulb temperature 32-bit ﬂoat °C

000D

hex

15 000E

hex

Enthalpy 32-bit ﬂoat kJ/kg

000F

hex

Floating Point Values (Non-metric)

129 0080

hex

Relative humidity 32-bit ﬂoat %RH

0081

hex

131 0082

hex

Temperature 32-bit ﬂoat °F

0083

hex

133 0084

hex

Dew point temperature 32-bit ﬂoat °F

0085

hex

135 0086

hex

Dew/frost point

temperature

32-bit ﬂoat °F

0087

hex

137 0088

hex

Absolute humidity 32-bit ﬂoat

gr/ft

3

0089

hex

139 008A

hex

Mixing ratio 32-bit ﬂoat gr/lb

008B

hex

141 008C

hex

Wet-bulb temperature 32-bit ﬂoat °F

008D

hex

143 008E

hex

Enthalpy 32-bit ﬂoat Btu/lb

008F

hex

Integer Values (x100, Metric)

1)

257 0100

hex

Relative humidity 16-bit signed

integer

%RH

258 0101

hex

Temperature 16-bit signed

integer

°C

259 0102

hex

Dew point temperature 16-bit signed

integer

°C

260 0103

hex

Dew/frost point

temperature

16-bit signed

integer

°C

19

ENGLISH

Integer Values (x100, Metric)

1)

261 0104

hex

Absolute humidity 16-bit signed

integer

g/m

3

262 0105

hex

Mixing ratio 16-bit signed

integer

g/kg

263 0106

hex

Wet-bulb temperature 16-bit signed

integer

°C

264 0107

hex

Enthalpy 16-bit signed

integer

kJ/kg

Integer Values (x100, Non-metric)

1)

385 0180

hex

Relative humidity 16-bit signed

integer

%RH

386 0181

hex

Temperature 16-bit signed

integer

°F

387 0182

hex

Dew point temperature 16-bit signed

integer

°F

388 0183

hex

Dew/frost point

temperature

16-bit signed

integer

°F

389 0184

hex

Absolute humidity 16-bit signed

integer

gr/ft

3

390 0185

hex

Mixing ratio 16-bit signed

integer

gr/lb

391 0186

hex

Wet-bulb temperature 16-bit signed

integer

°F

392 0187

hex

Enthalpy 16-bit signed

integer

Btu/lb

1) NOTE: 16-bit integers have a maximum value of +32767. Certain measurement parameters

(for example, mixing ratio and enthalpy) can exceed this value in x100 scaling. In such cases,

the value of the parameter is cut o at +32767, and measurements above this value are not

reported. Verify that the measurement ranges in your application are suitable for the 16-bit

integer format with x100 scaling; whenever possible, it is recommended to use 32-bit ﬂoat

values.

20 M212264EN-B

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