Rotronic HygroFlex TF5 User manual

E-M-TF5-V1_21 Rotronic AG
Bassersdorf, Switzerland
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HygroFlex TF5 Temperature Transmitter:
User Guide Instruction Manual
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HygroFlex TF5
Temperature Transmitter
User Guide
© 2015; Rotronic AG E-M-TF5-V1_21

E-M-TF5-V1_21 Rotronic AG
Bassersdorf, Switzerland
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HygroFlex TF5 Temperature Transmitter:
User Guide Instruction Manual
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Table of contents
1Overview ..............................................................................................................................................3
2Dimensional drawings........................................................................................................................4
2.1Display and keypad option ...............................................................................................................4
3General description.............................................................................................................................5
3.1 Power supply....................................................................................................................................5
3.2 External Pt100 RTD probe and probe connector..............................................................................5
3.3 Analog output signal (TF52 and TF53).............................................................................................6
3.4 Service connector.............................................................................................................................7
4User configurable settings and functions.........................................................................................7
4.1 Function overview.............................................................................................................................8
4.2 Factory default settings ....................................................................................................................9
5Mechanical installation.....................................................................................................................11
5.1 General guidelines..........................................................................................................................11
5.2 TF5 enclosure.................................................................................................................................11
6Electrical installation ........................................................................................................................12
6.1 General wiring guidelines...............................................................................................................12
6.2 Cable grip and cable specifications................................................................................................13
6.3 Wiring .............................................................................................................................................13
6.4 Minimum load requirements for the TF53 with voltage outputs ......................................................16
6.5 TF52 and TF53 transmitters (analog outputs)................................................................................17
6.6 Internal menu (optional keypad and display)..................................................................................17
7Maintenance.......................................................................................................................................18
7.1 Service cable..................................................................................................................................18
7.2 Location of the service connector (mini USB type).........................................................................18
7.3 Periodic calibration check...............................................................................................................18
7.4 Validation of the output signals transmission..................................................................................19
8Firmware updates..............................................................................................................................19
9Technical data ...................................................................................................................................20
9.1 Specifications .................................................................................................................................20
10 Accessories.......................................................................................................................................22
11 Supporting documents.....................................................................................................................22
12 Document releases ...........................................................................................................................23
© 2015; Rotronic AG E-M-TF5-V1_21

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Applicability:
This manual applies to all instruments of the TF5 series with firmware version 1.x, where 1.x can be 1.0, 1.1,
etc. Changes to the last digit of the version number reflect minor firmware changes that do not affect the
manner in which the instrument should be operated.
1 Overview
The TF5 transmitter measures temperature based on the data provided by an external PT100 4-wire RTD
probe. We offer a wide selection of plug-in RTD probes. In principle, the TF5 can be used with any suitable
third party RTD probe. The TF5 series is designed for fixed installation in HVAC and light industrial
applications where a high measurement accuracy is required at temperature conditions within the range of
-100 to 600°C (-148 to 1,112°F) – depending on the RTD probe model. The electronics operating range is
limited to -40…60 °C (-10…60°C with the optional LC display).
The TF5 features a robust housing. Digital signal processing ensures consistent product performance and
also facilitates the task of field maintenance with features such as potentiometer free – digital calibration.
Based on the ROTRONIC AirChip 3000 digital technology the TF5 series offers the following functions:
•User configurable settings
•Temperature calibration and adjustment
•Simulator mode
•Fail safe mode
•Data recording
The ability for the user to easily update the AirChip 3000 firmware means that instruments of the TF5 series
can be kept up-to-date regarding any future functionality improvement.
TF5 transmitters with analog output signal:two types of electronic circuit are available: TF52: 2-wire, loop
powered (4…20 mA current signal) and TF53: 3-wire (voltage or current signal). Both circuit types provide
linear analog outputs signals for transmission over a length of cable to a remote display, recorder, controller or
data processing unit.
© 2015; Rotronic AG E-M-TF5-V1_21

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2 Dimensional drawings
2.1 Display and keypad option
The LC display option for the TF53 has a backlight.
The LC display option for the TF52 does not have a
backlight.
The upper line corresponds to relative humidity or
dew / frost point and the bottom line corresponds to
temperature.
The display can be configured to show a trend indicator on each line:
▲: increasing value
▼: decreasing value
In the event of an alarm the display shows the symbol [ ! ] to the right of the value.
For instructions see the following HW4 manual: E-M-HW4v2-F2-017.
Models with USB or Ethernet interface
Dimensions in mm
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3 General description
3.1 Power supply
Depending on the circuit type, the TF5 requires the following power supply:
a) TF52(2-wire, loop powered): 10…28 VDC - depending on the load connected to the output. The
minimum supply voltage can be determined as follows:
V min = 10 V + (0.02 x Load*) *Load resistance in ohms.
For the maximum load of 500 Ω, the minimum supply voltage is 10 + (0.02 x 500) = 20 VDC. The
maximum current consumption is 20 mA.
b) TF53 (3-wire with analog outputs): 15 to 40 VDC (see note below) or 12 to 28 VAC. With both output
circuits closed, the maximum current consumption is 30 mA.
Note: depending on the type of output signal, the TF53 will operate with the following minimum voltage
0…1 V outputs: 5 VDC or 5 VAC
0…5 V outputs: 10 VDC or 8 VAC
0…10 V outputs: 15 VDC or 12 VAC
0…20 mA or 4 …20 mA outputs: 6 VDC or 5 VAC with 0 Ωload
15 VDC or 12 VAC with 500 Ωload
3.2 External Pt100 RTD probe and probe connector
The TF5 is equipped with a 4-pin Binder connector series 712 and is compatible with any of the ROTRONIC
Pt100 RTD probes (see separate manual E-M-Pt100-Probes). In principle, the TF5 can be used with any third
party 4-wire Pt100 RTD probe and is shipped together with the necessary connector hardware to
accommodate a third party probe
Note: seen from the solder side of the TF5 probe connector
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3.3 Analog output signal (TF52 and TF53)
TF52 and TF53
With the ROTRONIC HW4 software the scale of the analog temperature output can be set within the
numerical limits of -999.99 and 9999.99.
The D/A converter used to generate the analog output signal features a 16-bit resolution and exhibits a small
positive offset at the bottom of the signal range as indicated below:.
Signal type
Maximum offset at range bottom
0…1 V
3 mV
0…5 V
50 mV
0…10 V
90 mV
0…20 mA
4 µA
4…20 mA
No offset
TF52
The analog signal is always 4…20 mA,
TF53
The ROTRONIC HW4 software allows changing the type of output signal to one of the following: 0…20 mA,
4…20 mA, 0…1V, 0…5V or 0…10V. No calibration or adjustment is required after changing the type of output
signal.
In the case of a voltage output signal, load requirements apply to the external device or circuit connected to
the TF53 transmitter. These requirements are defined in the “Operation” chapter
Communication protocol options
The measurement data can be read without having to use the ROTRONIC HW4 software. Starting with
firmware version 1.3, the TF5 offers the following communication protocol options (ASCII) which can be
selected by connecting the TF5 to a PC running the ROTRONIC HW4 software (version 2.1.1 or higher):
oRO-ASCII: this is the standard (default) communication protocol used by all AirChip 3000 devices and by
the HW4 software. In principle, this protocol supports all of the AirChip 3000 functions but some of the
functions require a certain amount of computations to be carried out by an external device such as a PC.
oCustom: this communication protocol can be used to provide compatibility of the TF5 with an existing
communication system. The Custom communication protocol is limited to reading measurement data from
the TF5. Functions such as device configuration, humidity and temperature adjustment, etc. are not
supported. The Custom protocol is applicable to all AirChip 3000 devices with a digital interface and
allows RS-485 networking
oModbus: the Modbus protocol available with the TF5 is limited to reading measurement data from the
TF5. Functions such as device configuration, humidity and temperature adjustment, etc. are not
supported by the Modbus protocol.
When using either the RO-ASCII or the Custom protocol, the TF5 can be set to send data automatically after
each refresh cycle without requiring a data request. When this mode is enabled, the receiving device must be
listening at all times in order to get the measurement data.
For details, see document E-M-AC3000-CP
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3.4 Service connector
The service connector is a UART digital interface (Universal Asynchronous Receiver Transmitter) with a mini-
USB type connector. This allows connecting the TF5 either to a PC running the ROTRONIC HW4 software or
to a probe input of another instrument that is compatible with the HygroClip 2 (HC2) probes. In both cases a
service cable is required. See “Maintenance” for the location of the service connector and for the type of
service cable to be used.
•Connecting the TF5 to a PC is used to configure the TF5, gain access to the TF5 functions such as
temperature adjustment, read data from the TF5 on the PC and update the AirChip 3000 firmware.
•Connecting the TF5 to the probe input of another instrument is useful only when the other instrument has
its own display and keypad, and has an internal menu equivalent to the menu of the HP23 hand-held
calibrator. The connection allows showing the data measured by the TF5 on the other instrument display
and also allows using the other instrument internal menu to do for example a temperature adjustment of
the TF5.
4 User configurable settings and functions
The TF5 ships configured as specified on the customer order. Models with analog outputs can be installed
and used just as any conventional humidity and temperature transmitter and most users will never need to use
the TF5 configurable settings and functions. Models with a digital interface generally require some
configuration by the user.
Making use of the TF5 configurable settings and functions is entirely up to the user and the appropriate
settings depend on the user application. We have provided below a short description of the TF5 functions and
also indicated the factory default settings.
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4.1 Function overview
MEASUREMENT ACCURACY AND RELIABILITY
AirChip 3000 Functions
Description
►Temperature adjustment
o1-point or 2-point temperature calibration or adjustment
oGenerate a time stamp for calibrations and adjustments
oRetain and view last adjustment date and adjustment values
oGenerate calibration and adjustment protocols
►Data recording
The data recording function differs from a true data logging
function in the sense that the AirChip 3000 does not time stamp
the data. This data recording function can be used to investigate
events such as a probe malfunction as well as to retrieve data
that would otherwise be lost
oStart or stop data recording - up to 2000 temperature values.
Starting a recording session erases all previously recorded
data
oThe recording mode and log interval can be specified
oWhen the device is powered off, the recording session is
paused but not ended As long as the recording session has
not been ended, the device automatically resumes recording
data when powered up again
oThe recorded data can be downloaded to a PC with the
HW4 software, time stamped and viewed
MEASUREMENT LOOP VALIDATION
AirChip 3000 Functions
Description
►Simulator mode
Used to make the TF5 generate a fixed temperature value. Can
be configured, enabled or disabled
DEVICE SAFEGUARDS
AirChip 3000 Functions
Description
►Device write protection
Used to protect the TF5 with a password to prevent
unauthorized digital access by a digital user. Can be configured,
enabled or disabled
►Internal menu access from keypad
Used to prevent accidental changes to the TF5 settings and
temperature-humidity adjustment by disabling the MENU key on
the optional keypad. Can be enabled or disabled
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PROCESS PROTECTION / PROTECTION OF OTHER DEVICES
AirChip 3000 Functions
Description
►Out-of-limit value alarm
Used to specify the normal range for temperature, depending on
the user application. Can be configured, enabled or disabled
Out-of-limit values trigger a digital alarm which can be also be
seen on the optional display
►Bad probe alarm
Built-in function. Cannot be disabled
A defective temperature probe triggers a digital alarm which can
be also be seen on the optional display
►Fail safe mode
Used to specify a "safe" fixed temperature value in the event of
a probe failure. Can be configured, enabled or disabled
4.2 Factory default settings
Notes:
oConfiguration of the TF5 by the user and access to its functions requires a PC with the ROTRONIC HW4
software (version 2.1.1 or higher) installed. Service cable AC3006 or AC3009 is used to connect the TF5
service connector to a USB port of the PC.
oSettings and functions that can also be either partially or fully accessed from the optional keypad are
marked with the letter K(see also Operation > Internal Menu).
Configurable Settings
Applicability
Factory default
Unit system (Metric or English)
K
TF52, TF53
As per ordering code
Analog signal type (4…20 mA or
other)
TF53 As per ordering code
Output 2 parameter, scale and unit
(output 1 is not used)
TF52, TF53
Temperature, unit as per ordering
code
Display resolution (optional)
TF52, TF53
1 decimal
Display backlight (optional)
K
TF53
Always on
Trend indicator (display)
TF52, TF53
Enabled
Communication protocol
TF53 with DI
RO-ASCII
RS-485 address
TF53
0
Device name
TF53
Instrument model
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Functions
Applicability
Factory default
Temperature adjustment
K
TF52, TF53
Device write protection
TF52, TF53
Disabled
Menu access from keypad
TF52, TF53
Enabled
Out-of-limit value digital / display
alarm
TF52, TF53 Disabled
Data recording K TF52, TF53
Enabled (loop mode – 10 min.
interval)
Fail safe mode
TF52, TF53
Disabled
Simulator mode
TF52, TF53
Disabled
oFor a detailed description of all AirChip 3000 / TF5 main functions see document E-T-AC3000-DF-V1
oInstructions regarding the configuration of the TF5 and access to its functions are provided in the
following manuals:
E-M-HW4v2-F2-017
E-M-HW4v2-Main (§ 6.5)
E-M-HW4v2-DR-001
E-M-HW4v2-A2-001
E-M-AC3000-CP
.
oThe factory default setting for dew / frost point calculation is frost point below freezing
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5 Mechanical installation
5.1 General guidelines
Relative humidity is extremely dependent on temperature. Proper measurement of relative humidity requires
that the probe and its sensors be at exactly the temperature of the environment to be measured. Because of
this, the location where you choose to install the probe can have a significant effect on the performance of the
instrument. The following guidelines should guarantee good instrument performance:
a) Select a representative location: install the probe where humidity, temperature and pressure
conditions are representative of the environment to be measured.
b) Provide good air movement at the probe: air velocity of at least 200 ft/ minute (1 meter/second)
facilitates adaptation of the probe to changing temperature.
c) Avoid the following: (1) Close proximity of the probe to a heating element, a cooling coil, a cold or
hot wall, direct exposure to sun rays, etc. (2) Close proximity of the probe to a steam injector,
humidifier, direct exposure to precipitation, etc. (3) Unstable pressure conditions resulting from
excessive air turbulence.
d) Immerse as much of the probe as possible in the environment to be measured.
e) Prevent the accumulation of condensation water at the level of the sensor leads. Install the
probe so that the probe tip is looking downward. If this is not possible, install the probe horizontally.
5.2 TF5 enclosure
The TF5 enclosure consists of a base and a cover held together with 4 screws. To open the enclosure, use a
metric 2.5 mm hex key. Prior to re-assembling the enclosure, verify that the red seal is sitting properly in its
groove on the base.
Mounting hardware
Method 1: The TF5 is supplied with 2 screws, 2 drywall anchors and two rubber washers. The base of the
enclosure has 2 screw-wells (see drawing) that are normally closed at the bottom. Use the template provided
with the TF5 to drill mounting holes in the wall and insert the drywall anchors. Place a rubber washer on each
screw. Insert a screw in each well and push to open the bottom of the well.
Method 2: When a DIN-rail (35 mm / 1 3/8 “) is available use part AC5002 (not included). This is a DIN-rail
mounting kit consisting of 2 clamps that attach to the back of the enclosure with the screws provided.
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6 Electrical installation
6.1 General wiring guidelines
Power supply wiring
Heavy machinery and instrumentation should not share the same power supply wiring. If this cannot be
avoided, noise filters and surge protectors should be used. Most UPS devices have those features already
integrated.
General guidelines for signal cables
The following guidelines are derived from European Standard EN 50170 for the transmission of signals by
copper wires. When planning an installation, the rules provided by EN 50170 should be followed under
consideration of local circumstances to determine the position of machines and equipment.
All ROTRONIC products are tested for Electromagnetic Compatibility according to EMC Directive
2004/106/EG and following European standards:
- EN 61000-6-1: 2001, EN 61000-6-2: 2005
- EN 61000-6-3: 2005, EN 61000-6-4: 2001 + A11
Whenever the level of electromagnetic interference is expected to be high, both the instruments and signal
cables should be placed as far away as possible from the source of interference.
In general, signal cables should be installed in bundles or channels / conduits, separate from other cables as
indicated in the table below:
•Bus signals such as RS485
•Data signals for PCs, printers etc.
•shielded analog inputs
•unshielded direct current (<= 60V)
•shielded process signals (<= 25 V)
•unshielded alternate current (<= 25V)
•coaxial cables for CRT monitors
in common bundles or channels / conduits
•direct current from 60 V to 400 V
(unshielded)
•alternate current from 25V to 400 V
(unshielded)
in separated bundles or channels /
conduits, without minimum distance
•direct and alternate current > 400 V
(unshielded)
•Telephone lines
•lines leading into EX-rated areas
in separated bundles or channels /
conduits, without minimum distance
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Lightning protection
Cabling in areas with a risk of lightning requires a lightning protection. For cabling underground in between
buildings, we recommend the use of special fiber optic cables. If this is not possible, use copper cables that
are suitable for underground installation.
6.2 Cable grip and cable specifications
The TF5 is supplied either with one M16 sealing cable grip or with a ½” conduit adapter. The M16 cable grip
provides effective sealing only with cables having the proper outside diameter. Preferably, use a cable with an
outside diameter of 6 to 7 mm (0.236 to 0.275 inch) with 18 AWG wires.
6.3 Wiring
6.3.1 TF52: 2-wire, loop powered transmitter
Electrical diagram
The maximum permissible cable length connecting the TF52 to other devices
is determined by the total resistance resulting from the addition of the cable
resistance and that of the devices connected in series with the unit. This
resistance should not exceed 500 ohms.
Terminal block diagram
Terminals
Description
K2-2: T-OUT
Temperature output (+)
OUT-2
K2-1: V+
Power supply: 10…28 VDC (+)
K1-2: H-OUT
Not used
K1-1: V+
Not used
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Note: connect the + of the power supply to only one of the V+ terminals. The two terminals marked V+ are
internally connected.
6.3.2 TF53: 3-wire transmitter
Electrical diagram for voltage outputs
The maximum permissible cable length can be
determined under consideration of the voltage drop
caused by the current flowing to the devices
connected to the unit. The voltage drop in the cable
depends both on cable resistance and on the
equivalent resistance of the devices connected in
parallel to the unit. The total resistance connected to
each unit output should be at least 1000 ohms. Cable
resistance should not be more than 1/1000 of the load
resistance.
Minimum load requirements apply to the external device or circuit connected to the TF5 transmitter. These
requirements are defined in the “Operation” chapter
Electrical diagram for current outputs
The maximum permissible cable length, connecting
the unit to other devices, is determined by the total
resistance resulting from the addition of the cable
resistance and that of the devices connected in
series with the unit. This resistance should not
exceed 500 ohms.
Terminal block diagram
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Note: Terminals K1-3 or K6-3 (protective or earth ground) are not tied with GND. If so desired, K1-3 or K6-3
can be tied with GND by closing a solder pad on the PCB
Terminals
Description
K1-1: GND
Power supply (-) or neutral
(tied with other GND)
K1-2: V+
Power supply: 15…40 VDC (+)
or 12…28 VAC (Phase)
K1-3: -►Protective ground (see note below)
K2-4: GND Ground (tied with other GND)
K2-3: GND Ground (tied with other GND)
K2-2: OUT2 Temperature output (+)
K2-1: OUT1 Not used
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Operation
6.4 Minimum load requirements for the TF53 with voltage outputs
The following requirements apply to any external device or circuit connected to the TF53 transmitter with
voltage outputs:
In the situation where the external device uses an internal pull-up resistor the value of this resistor should
meet the requirements shown below. It is also necessary to add a pull-down resistor RL connected to ground
in order to be able to read 100% of the range of the TF53 voltage output.
TF53 output signal
Input resistance RL
0…1V
>=1kOhm
0…5V
>=5kOhm
0…10V
>=10kOhm
TF53 signal
VCC
R pull-up
RL
0…1V
3.3V
≥ 250 kOhm
1 kOhm
TF53 signal
VCC
R pull-up
RL
0…1V
5.0V
≥ 400 kOhm
1 kOhm
0…5V
5.0V
≥ 400 kOhm
5 kOhm
TF53 signal
VCC
R pull-up
RL
0…1V
10.0V
≥ 1 MOhm
1 kOhm
0…5V
10.0V
≥ 1 MOhm
5 kOhm
0…10V
10.0V
≥ 1 MOhm
10 kOhm
RL
GND
TF53
Voltage Output
R Pull-up
RL
GND
VCC
TF53
Voltage Output
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6.5 TF52 and TF53 transmitters (analog outputs)
If so desired, use the HW4 software to configure the TF5. Complete the mechanical and electrical installation
and simply power up the TF5.
USB network connection
Prior to connecting the TF55 to a USB port you must install the ROTRONIC USB driver on the HW4 PC. For
instructions see the HW4 manual E-M-HW4v2-Main (§ 6.3)
6.6 Internal menu (optional keypad and display)
Note: Unauthorized access to the menu can be prevented by disabling the “display menu” setting
(use the HW4 software > Device Manager > Display)
Main Menu
Menu Items
Selections / Information
Notes
Settings
Unit
°C / °F
Temperature
Record On / Off
Data recording (max. 2000
values)
Back Light
Key Press / On / Off
Display backlight mode
Device Information
Version
Firmware version
Serial Nbr
Serial number
Address
RS-485 address
Type
Device type
Name
Device name
User defined
SensorTest
Off
Not applicable to TF5
Temperature Adjust
RefValue
Temperature reference
value
± 0.1 ˚C steps
<Adjust>
1-point adjustment only (offset)
oRecord: both the recording mode (start / stop and the log interval cannot be changed from the menu and
are as configured with the ROTRONIC HW4 software
MENU key: open / close menu
ENTER key: menu item selection
Menu navigation keys + / -
Change value up / down
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7 Maintenance
7.1 Service cable
•Cable AC3006 is used to connect the TF5 to a USB port of a PC running the ROTRONIC HW4 software.
•As an alternative, cable AC2001 is used to connect the TF5 to a probe input of the HP23 hand-held
calibrator. For service purposes, the HP23 offers essentially the same functionality as the HW4 software.
7.2 Location of the service connector (mini USB type)
WARNING: the service connector is a UART interface with a mini-USB connector type. Do not connect the
service connector directly to the USB port of a PC or hub.
The service connector can be accessed without opening the enclosure after removing the small red sealing
cover.
7.3 Periodic calibration check
a) Procedure for adjusting the TF5 from the optional keypad
The optional keypad of the TF5 allows a 1-point adjustment of temperature against a reference. This has
the effect of adding the same offset to all measured values. A 2-point adjustment is not possible from the
keypad and requires using either a PC with the HW4 software installed or another instrument such as
the HP23 hand-held calibrator.
•When temperature is stable, press the MENU key to show the internal menu on the display
•Use the (-) key to select Temperature Adjust and press the ENTER key
•Make sure that the text line beginning with RefValue is highlighted and press the ENTER key
•Use the (+) or (-) key to change the reference value as desired
•Use the (-) key to highlight the Adjust text line and press the ENTER key
•The TF5 confirms the adjustment with the message “Adjust OK”
•Press the MENU key twice to exit the menu and return the TF5 to normal operation
Notes:
oThe calibration point is automatically deleted from the TF5 memory after an adjustment
oBecause the TF5 has no real time clock, the date of the adjustment is not written to the TF5. If
retaining the adjustment date is important, use the HW4 software to adjust the TF5.
HF32
The service connector is located at the bottom of the enclosure
(black arrow)
© 2015; Rotronic AG E-M-TF5-V1_21

E-M-TF5-V1_21 Rotronic AG
Bassersdorf, Switzerland
Document code Unit
HygroFlex TF5 Temperature Transmitter:
User Guide Instruction Manual
Document Type
Page 19 of 23
Document title
b) Procedure for adjusting the TF5 with the ROTRONIC HW4 software:
•Use cable AC3006 to connect the service connector of the TF5 to a USB port of a PC with the HW4
software installed. Note that the ROTRONIC USB driver must be installed on the PC as explained in
the HW4 manual E-M-HW4v2-Main.
•Start HW4 on the PC and search for the TF5 (HW4 Main Menu Bar > Devices and Groups > Search
for USB Masters).
•After finding the TF5 with HW4, expand the device tree to see the TF5 functions.
Select Probe Adjustment.
•For further instructions see HW4 manual E-M-HW4v2-A2-001
7.4 Validation of the output signals transmission
If so desired, transmission of the TF5 output signals can be validated by using the simulator function. The
HW4 software is required to enable and configure this function. When this function is enabled the TF5
generates fixed digital and analog signals as specified by the user. For instructions see document
E-M-HW4v2-F2-017
8 Firmware updates
Firmware updates will be available on the ROTRONIC website for downloading. Firmware files are given a
name that shows both to which device the file applies and the version number of the firmware. All firmware
files have the extension HEX. Procedure for updating the firmware:
•Use cable AC3006 to connect the service connector of the TF5 to a USB port of a PC with the
ROTRONIC HW4 software installed. Note that the ROTRONIC USB driver must be installed on the
PC as explained in the HW4 manual E-M-HW4v2-Main.
•Copy the firmware update file from the ROTRONIC website to the PC.
•Start HW4 software on the PC and search for the TF5 (HW4 Main Menu Bar > Devices and Groups >
Search for USB Masters).
•After finding the TF5, expand the device tree to see the TF5 functions. Select Device Manager. In the
Device Manager menu bar select Tools > Firmware Update. For instructions see document
E-M-HW4v2-F2-017
© 2015; Rotronic AG E-M-TF5-V1_21

E-M-TF5-V1_21 Rotronic AG
Bassersdorf, Switzerland
Document code Unit
HygroFlex TF5 Temperature Transmitter:
User Guide Instruction Manual
Document Type
Page 20 of 23
Document title
9 Technical data
9.1 Specifications
General
TF52
TF53
Device type
Humidity temperature transmitter with analog output signals
Circuit type
2-wire, loop powered
3-wire
Power supply and connections
TF52
TF53
Supply voltage (VDD)
10…28VDC
V min = 10 V + (0.02 x
Load*) *Load
resistance in ohms.
15…40 VDC or
12…28 VAC
Nominal current consumption
20 mA
< 30 mA
Electrical connections
Terminal block and M16 cable grip or ½” conduit adapter
Polarity protection Protective diode on V+
Temperature measurement
TF52
TF53
External temperature probe
4-wire Pt100 RTD, IEC 751 1/3 class A or class B (see separate probe manual)
Maximum measuring range
-100…600 °C / -148…1.112 °F (actual range depends on probe model)
Measurement accuracy at 23 °C
±0.2 °C (based on an error free Pt100 RTD probe)
Repeatability (typical)
0.05°C
Long term stability (typical)
< 0.1°C / year
Probe time constant
Depends on probe model (see separate probe manual E-M-Pt100-Probes)
Start-up time and data refresh rate
TF52
TF53
Start-up time
3.4s (typical)
1.9s (typical)
Data refresh rate
3.4s (typical)
1.7s (typical)
© 2015; Rotronic AG E-M-TF5-V1_21