Kobold HND-T205 User manual

Operating Instructions
for
Precision Hand-Held Thermometer
Model: HND-T205

HND-T205
page 2 HND-T205 K05/0422
1. Contents
1.Contents ........................................................................................................ 2
2.Note .............................................................................................................. 3
3.Instrument Inspection .................................................................................... 3
4.Regulation Use ............................................................................................. 3
5.Operating Principle ........................................................................................ 4
6.Electrical Connection .................................................................................... 4
6.1Mains Operation .................................................................................. 4
7.Operation ...................................................................................................... 5
7.1Safety Instructions ............................................................................... 5
7.2Connections ......................................................................................... 6
7.3Display Elements ................................................................................. 6
7.4Pushbuttons ......................................................................................... 7
7.5Device Configuration ........................................................................... 7
7.6Special Functions ................................................................................ 9
7.7Probe connection ............................................................................... 12
7.8Operation of Logger ........................................................................... 13
7.9Some Basics of Precision Temperature Measuring ........................... 15
7.10Fault and System Messages .............................................................. 17
7.11Calibration Services ........................................................................... 17
8.Maintenance ............................................................................................... 18
9.Technical Information .................................................................................. 18
10.Order Codes ............................................................................................... 19
10.1PT100-measuring probe Class B ....................................................... 20
10.2Accessories ....................................................................................... 21
11.EU Declaration of Conformance ................................................................. 22
Manufactured and sold by:
Kobold Messring GmbH
Nordring 22-24
D-65719 Hofheim
Tel.: +49(0)6192-2990
Fax: +49(0)6192-23398
E-Mail: [email protected]
Internet: www.kobold.com

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2. Note
Please read these operating instructions before unpacking and putting the unit
into operation. Follow the instructions precisely as described herein.
The instruction manuals on our website www.kobold.com are always for currently
manufactured version of our products. Due to technical changes, the instruction
manuals available online may not always correspond to the product version you
have purchased. If you need an instruction manual that corresponds to the
purchased product version, you can request it from us free of charge by email
([email protected]) in PDF format, specifying the relevant invoice number and
serial number. If you wish, the operating instructions can also be sent to you by
post in paper form against an applicable postage fee.
The devices are only to be used, maintained and serviced by persons familiar
with these operating instructions and in accordance with local regulations
applying to Health & Safety and prevention of accidents.
When used in machines, the measuring unit should be used only when the
machines fulfil the EC-machine guidelines.
3. Instrument Inspection
Instruments are inspected before shipping and sent out in perfect condition.
Should damage to a device be visible, we recommend a thorough inspection of
the delivery packaging. In case of damage, please inform your parcel service /
forwarding agent immediately, since they are responsible for damages during
transit.
Scope of delivery:
The standard delivery includes:
Precision Hand-Held Thermometer model: HND-T205
4. Regulation Use
Any use of the Precision Hand-Held Thermometer, model: HND-T205, which
exceeds the manufacturer’s specification, may invalidate its warranty. Therefore,
any resulting damage is not the responsibility of the manufacturer. The user
assumes all risk for such usage.

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5. Operating Principle
The KOBOLD hand-held temperature measuring units HND-T205 are highly
precise, compact thermometers for PT100 4-wire-probes that can be used
universally. The high degree of accuracy of these housings makes them
extremely well suited for all calibration tasks. In conjunction with the appropriate
temperature probes, precise measurement results over the entire measuring
range can be achieved. Various probes are available for a multitude of measuring
tasks and special applications. The respective measurement task determines
which combination is selected. Naturally, these first-rate KOBOLD-measuring
units can display more than just the temperature values. All housings in this
series allow for minimum/maximum value memory, hold function, automatic self-
shut-off, and zero point/increase entry, for example.
6. Electrical Connection
6.1 Mains Operation
Attention: When using a power supply unit please note that
operating voltage has to be 10.5 to 12 VDC. Do not apply
overvoltage!! Simple 12 V-power supplies often have excessive
no-load voltage. We, therefore, recommend using regulated
voltage power supplies. Trouble-free operation is guaranteed by
our power supply HND-Z002.
Prior to connecting the plug power supply with the mains supply
make sure that the operating voltage stated at the power supply
is identical to the mains voltage.
Treat device and probes carefully. Use only in accordance with above
specification. (do not throw, hit against etc.). Protect plugs and sockets from
soiling.
To disconnect sensor plug do not pull at the cable but at the plug. When
connecting the probe, the plug will slide in smoothly if plug is entered correctly.
Selection of Output-Mode: The output can be used as serial interface or as
analogue output. This choice has to be done in the configuration menu.

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7. Operation
7.1 Safety Instructions
This device has been designed and tested in accordance to the safety regulations
for electronic devices. However, its trouble-free operation and reliability cannot be
guaranteed unless the standard safety measures and special safety advises
given in this manual will be adhered to when using it.
1. Trouble-free operation and reliability of the device can only be guaranteed
if it is no subjected to any other climatic conditions than those stated under
“Technical Information”.
2. Transporting the device from a cold to a warm environment condensation
may result in a failure of the function. In such a case make sure the device
temperature has adjusted to the ambient temperature before trying a new
start-up.
3. The circuitry has to be designed most carefully, especially if the device
should be connected to other devices. Internal connection in third party
devices (e.g. connection GND and earth) may result in not-permissible
voltages impairing or destroying the device or another device connected.
Warning: Operation the device with a defective mains power supply (e.g.
short circuit from mains voltage to output voltage) may result in hazardous
voltages at the device (e.g. at sensor socket)
4. Whenever there may be a risk whatsoever involved running it, the device
has to be switched off immediately and to be marked accordingly to avoid
re-starting. Operator safety may be a risk if:
there is visible damage to the device
the device is not working as specified
the device has been stored under unsuitable conditions for a longer
time
In case of doubt, please return device to manufacturer for repair or
maintenance.
Warning: Do not use this product as safety or emergency stop device
or in any other application where failure of the product could result
in personal injury or material damage. Failure to comply with these
instructions could result in death or serious injury and material
damage

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7.2 Connections
1. Output: Operation as interface: Connect to optically isolated
interface adapter (accessory: HND-Z031)
Operation as analogue output: Connection via suitable cable.
Attention: The output mode has to be configured (p.r.t. 7.6.6)
and influences batter
y
life!
2. Probe connection Pt100 4-wire
The mains socket is located at the left side of the instrument
7.3 Display Elements

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HND-T205 K05/0422 page 7
7.4 Pushbuttons
Key 1: On/Off
Key 2:
Press shortly: maximum measured value will be displayed
Press for 2 sec.: the max. value will be deleted
Key 3:
Function only during configuration: selection of parameter
Key 4:
Press (Menu) for 2 sec.: configuration will be activated (p.r.t. chapter 7.5)
Key 5:
Press shortly: minimum measured value will be displayed
Press for 2 sec.: the min. Value will be deleted
Key 6:
Measurement: Hold current measuring value (‘HLD’ in display) or operation
of logger functions (p.r.t. chapter 7.8)
7.5 Device Configuration
Note: Some menu items will be shown depending on the actual
device configuration (e.g. there are some items disabled when the
logger contains data). Please note the hints by the menu items.
Enter
configuration:
Press for 2
sec. The main
menu will be
shown
or
Navigation:
Choose menu branch (*1)
Choose the parameter (*2)
Edit the parameter values. (*2)
Stores the settings, jumps back to the main menu
Stores the sttings, leaves configuration

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page 8 HND-T205 K05/0422
Menu Paramete
r
Values Meaning
key
Menu
keykey or p.r.t.
Set Configuration: Generic Settings
°C:
A
ll temperature values are in de
g
rees Celsius *
°F:
A
ll temperature values are in de
g
rees Fahrenhei
t
0.1°: Resolution 0.1 °C * 7.6.1
0.01°: Resolution 0.01 °C
Auto: Resolution is selected automaticall
y
E.751 Measurin
g
/ sensor curve accordin
g
to EN60751 * 7.6.2
USEr User sensor curve (Predefined to EN60751 values, changeable
b
y
software
)
-2.50 °C..2.50 °C
resp.
-4.50 °F...4.50 °F
The zero point of the measurement will be displaced by this value
to compensate for deviations in the probe or in the measuring
device.
*7.6.3
oFF: Zero displacement inactive
(
=0.0°
)
-2.000...2.000: The scale of the measuring will be changed by this factor (in %)
to compensate deviations of temperature probe or measuring
device
*7.6.4
oFF: Scale correction factor inactive
(
=0.000
)
1...30:
A
vera
g
e filter
(
period in seconds
)
7.6.5
oFF: Average filter inactive 7.6.5
1...120 Power-off delay in minutes.
Device will be automatically switched off as soon as this time has
elapsed if no key is pressed/no interface communication takes
place
.
oFF Power-off function inactive (continuous operation, e.g. mains
operation
)
oFF: Function of the output: No output function, lowest power
consumption
7.6.6
SEr: Output is serial interface
dAC: Output is analo
g
ue output 0...1 V
01,11..91 Base Address when Output = Serial Interface :
Base address of device for interface communication.
7.6.6
-200.0...850.0 °C
resp.
-328.0...1562.0 °F
Enter desired temperature value at which the analogue output
potential should be 0 V
7.6.6
-200.0...850.0 °C
resp.
-328.0...1562.0 °F
Enter desired temperature value at which the analogue output
potential should be 1 V
7.6.6
Set Alarm: Settin
g
s Of Alarm Function
on
A
larm on, with horn-sound 7.6.8
no.So
A
larm on, without horn-sound
oFF no alarm function
min range
...AL.Hi
Min alarm rail (not when AL. oFF) 7-6.8
AL.Lo
...max ran
g
e
Max alarm rail (not when AL. oFF) 7.6.8
Set Lo
gg
er: Confi
g
uration Of Lo
gg
er Function *
CYCL C
y
clic: lo
gg
er function ‚c
y
clic lo
gg
er‘ * 7.8
Sto
r
Store: lo
gg
er function ‚individual value lo
gg
er‘
oFF no lo
gg
er function
0:01..60:00 Cycle time of cyclic logger [minutes:seconds] * 7.8

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HND-T205 K05/0422 page 9
Set Clock: Setting Of Real Time Clock
HH:MM Clock: Setting of time hours:minutes 7.6.9
YYYY Year
TT.MM Date: day.month
(*) If the logger memory contains data already, the menus/parameters marked
with (*) can not be invoked! If these should be altered the logger memory
has to be cleared before!
Hint: The settings will be set to the settings ex works, if keys ‘Set‘ and
‘Store‘ are pressed simultaneously for more than 2 seconds.
7.6 Special Functions
7.6.1 Display Resolution
Standard setting: 'Auto', i.e. the device automatically switches over to the
optimum resolution between .01° and 0.01°.
If temperatures to be measured are near the switching threshold, a fixed
resolution may be better, e.g. for easy recording. In such a case please select the
optimum resolution manually.
7.6.2 User Sensor Curve ('Lin USEr')
By means of this function besides the standard conversion of resistance to
temperature following EN60751 (Lin E.751) also other curves can be used. The
user sensor curve can be read and edited by configuration software. The
standard setting ex works is also set to the EN60751 data. The curve is defined
by a table with two columns (input resistance [Ohm]/output temperature [°C]) with
50 rows.
Info: the sensor curve following EN60751 uses the international temperature
scale ITS90 and following formulas:
Temperatures < 0 °C: Rneg(T) := 100 ꞏ [1 + 3.9083ꞏ10-3ꞏT – 5.775ꞏ10-7ꞏT2 –
4.183ꞏ10-12ꞏ(T – 100)ꞏT3]
Temperatures >= 0 °C: Rpos(T) := 100 ꞏ (1 + 3.9083ꞏ10-3ꞏT – 5.775ꞏ10-7ꞏT2)
Please notice: temperature measurements with the user sensor curve are
allowed only within the temperature range which has been used to generate the
user sensor curve. Temperature measurements with an user sensor curve
beyond the checked temperature range can possibly lead to tremendous errors.
Therefore, the sensor curve due to DIN EN 60751 (display: Lin E.751) has to be
used for temperature measurements beyond the checked temperature range.

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7.6.3 Zero Displacement ('Offset')
A zero displacement can be carried out for the measured temperature:
temperature displayed = temperature measured - offset
Standard setting: 'off' = 0.0°, i.e. no zero displacement will be carried out.
Together with the scale correction (see below) this factor is mainly used to
compensate for sensor deviations. Unless the factor is set to 'off', the offset arrow
in the display shows an active zero displacement.*)
7.6.4 Scale Correction ('Scale')
The scale of the measuring can be influenced by this setting (factor is in %):
displayed temperature[°C] = measured temperature[°C] * (1+Scal/100)
respectively displayed temperature[°F] = (measured temperature [°F]-32 °F)
* (1+Scal/100) + 32 °F
Standard setting: 'off' =0.000, i.e. temperature is not corrected. Together with the
zero displacement (see above) this factor is mainly used to compensate for
sensor deviations. Unless the factor is set to 'off', the Corr arrow in the display
shows an active scale correction.*)
*) The standard curve (LIN E.751) and the user sensor curve (Lin USEr)
posses separate correction settings.
7.6.5 Average filter (“tAuG”)
The filter forms the arithmetic floating average over the entered time. The
displayed value will be correspondingly slower in this case.
7.6.6 Output (“Out”)
The output can be used as serial interface (HND-Z031 interface adapters) or as
analogue output (0-1 V). If none of both is needed, we suggest switching the
output off, because battery life then is extended.
7.6.6.1 Analogue Output – Scaling with DAC.0 and DAC.1
With the DAC.0 and DAC.1 values the output can be rapidly scaled to your
efforts.
Example: -50 °C...250 °C should correspond to 0...1 V at the output
Set “DAC.0” to -50.00 °C and “DAC.1” to 250.0 °C -> finished.
Keep in mind not to connect low-resistive loads to the output, otherwise the output
value will be wrong and battery life is decreased. Loads above approx. 10 kOhm
are uncritical.
If the display exceeds the value set by DAC.1, then the device will apply 1 V to
the output
If the display falls below the value set by DAC.0, then the device will apply 0 V to
the output
In case of an error (Err.1, Err.2, no sensor, etc.) the device will apply slightly
above 1 V to the output.

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7.6.6.2 Operation as Interface (“Out SEr”)
By using an electrically isolated interface converter HND-Z031 or HND-Z032
(accessory) the device can be connected to a PC. As a precondition the base
addresses of all devices must not be identical. In case several devices will be
connected via one interface make sure to configure the base addresses
accordingly. In order to avoid transmission errors, there are several security
checks implemented (e.g. CRC).
The following standard software packages are available for data transfer:
BUS-S20M: 20-channel software to record and display the measuring values
Supported interface functions:
Code Name/Function Code Name/Function
0 read nominal value 201 read max. display range
3 read system status 202 read unit of display
6 read min. value 204 read decimal point of display
7 read max. value 208 read channel count
12 read ID-no. 214 read scale correction
22 read min. alarm rail (AL. -
A
L.Lo) 215 set scale co
r
rection
23 read max. alarm rail (AL. -
A
L.Hi) 216 read zero displacement
32
read configuration flag alarm
function: 1; Alarm horn:3;
BitLoggerOn: 50;
BitCyclicLogger: 51;
217 set zero displacement
222 Read powe
r
-off time
223 Set powe
r
-off time
224 Logger: read data cyclic logge
r
102 set min. alarm rail (AL. -
A
L.Lo) 225 Logger: read cycle time (LoGG - CYCL)
103 set max. alarm rail (AL. -
A
L.Hi) 226 Logger: set cycle time (LoGG - CYCL)
160 set configuration flag (see 32) 227 Logger: start
r
ecording
174 delete min. value 228 Logger: read #of data
175 delete max. value 229 Logger: read status
176 read min measuring range 231 Logger: read stop time
177 read max measuring range 233 read Real time clock (CLOC)
178 read measuring range unit 234 set Real time clock (CLOC)
179 read measuring range decimal point 236 Read logger memory size
180 read measuring type 240 Reset
194 set display unit 254 read program identification
199 read meas. type in display 260 Logger: read data manual logge
r
200 read min. display range
Note: The measuring and range values read via interface are always
in the selected display unit (°C/°F)!
plug wiring::
GND Attention!
The 3rd contact has to be left floating!
Only stereo plugs are allowed!
+Uout

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page 12 HND-T205 K05/0422
7.6.7 Alarm (“AL”)
There are three possible settings: Alarm off (AL. oFF), on with horn sound (AL.
on), on without horn sound (AL. no.So).
Following conditions will display an alarm, when the function is activated (on or
no.So):
Value is below lower (AL. Lo) or above upper alarm rail (AL.Hi).
Sensor error
Low battery (bAt)
Err.7: System error (always with sound)
In case of an alarm and when polling the interface, the prio-flag is set in the
returned interface message.
7.6.8 Real Time Clock (“CLOC”)
The real time clock is used for the logger function: Recorded values are also
containing the point of time, when they were measured. Please check the settings
when necessary.
If the battery was replaced the referring menu ‚CLOC‘ will automatically be
started.
7.7 Probe connection
The device is constructed for the connection of a Pt100 4-wire probe via 4 pole
Mini-Din connectors.
It is also possible to connect a 3- or 2-wire probe to the device. Please observe
that in consequence of the cable resistance an increased measuring fault will
occur. The connection of this probe should be carried out as follows:

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7.8 Operation of Logger
The device supports two different logger functions:
„Func-Stor“: each time when „store“ (key 6) is pressed a measurement will
be recorded.
„Func-CYCL“: measurements will automatically be recorded at each interval,
which was set in the logger menu ‚CYCL‘ until the logger will
be stopped or the logger memory is full. The recording is
started by pressing „Store“ 2 seconds.
The logger records 1 measurement result each time
The data set consists of: -measuring value at time of recording
-time and date of recording
For the read out and evaluation of the data the software HND-Z034 (at least V.
1.7) has to be used. The software also allows easy configuration and starting of
the logger.
When the logger is activated (Func Stor or Func CYCL) the hold function is no
longer available, key 6 is solely used for the operation of the logger functions.
7.8.1 Storing Single Measurements („Func-Stor“)
a) Record Measuring:
If the logger function “Func Stor” was activated (see chapter Device
configuration), up to 99 measuring data sets can be recorded manually.
Press shortly: data set will be recorded (“St.XX” will be shown shortly.
XX is the number of the data set)
If the logger memory is full, the display will show:
b) Viewing Recorded Measurings:
Stored data sets can be either read out via PC Software HND-Z034, or be viewed
in the display directly.
Press for 2 seconds: The display will show:
Note: “rEAd Logg” only appears, if there are already data stored! If
memory is empty, the configuration menu will show.

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c) Clear Recorded Measurings:
7.8.2 Automatic Recording With Selectable Cycle-Time “Func CYCL”
If the logger function “Func CYCL” was activated (see chapter 8 “Device
configuration”), and the logger was started, it automatically records data sets at
intervals of the selected logger cycle time. The logger cycle time is selectable
from 1s to 60 min (see chapter 8 “Device configuration”).
Max. number of measurings: 16384
a) Starting a recording:
press for 2 seconds: the recording will be started.
Each recording is signalled with a short display of ‘St.XXXXX’. XX is the number
of the data set.
If the logger memory is full, the display will show:
b) Stop the recording:
Note: If you try to switch off the instrument in the cyclic recording
operation you will be asked once again if the recording should be
stopped.
The device can only be switched off after the recording has been
stopped!
The Auto-Power-Off-function is deactivated during recording!

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c) Clear recorded measurings:
7.9 Some Basics of Precision Temperature Measuring
Probe Precision/Device Precision
The device is very precise (please refer to technical data). To be able to use this
high precision, the connected temperature probe has to be as precise as
possible, too. The following precision classes are available as a standard at
reasonable prices (Platinum resistor thermometers according to EN60751):
Class Error ranges
B ± (0,3 + 0,005 • |temperature|)
1/3 B (=1/3 DIN) ± (0,1 + 0,0017 |temperature|)
1/10 B (=1/10 DIN) ± (0,03 + 0,0005 • |temperature|)
A ± (0,15 + 0,002 • |temperature|)
Error over measuring range Error over range -50...150 °C
For applications demanding higher precision than given by these classes we
suggest to adjust the device to the used probe or to get a calibration certificate for
the device combined with the probe.
Attention: if an adjusted or calibrated probe is replaced, also the
adjustment or calibration certificate has to be renewed to maintain the
referring overall precision! Be careful when buying third party temperature
probes: Besides the standard EN60751 there are some other obsolete or
unusual standards on the market. If such a probe has to be connected, the
user sensor curve (have a look to the referring chapter) can be used to
adjust the instrument!

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page 16 HND-T205 K05/0422
4-Wire-Measuring
When using resistance thermometers as the Pt100 a quite large measuring error
can be caused by inadequate cables and connections. Using 4wire measuring
avoids these kinds of errors mainly caused by unwanted resistances. It is
suggested to use suitable probes and extensions only. (For pin assignment
please refer to chapter 7.7 Probe connection)
Heat loss caused by probe construction:
Especially when measuring temperatures which deviate very much from the
ambient temperature, measuring errors often occur if the heat loss caused by the
probe is not considered. When measuring fluids therefore the probe should be
emerged sufficiently deep and be stirred continuously. When measuring gases,
the probe should also emerge as deep as possible in the gas to be measured
(e.g. when measuring in channel/pipes) and the gas should flow around the probe
at sufficient flow.
Measuring Surface Temperature
If temperature of the surface of an object has to be measured, one should pay
attention especially when measuring hot (or very cold) surfaces, that the ambient
air cools (or heats) the surface. Additionally, the object will be cooled (or heated)
by the probe or the probe can have a better heat flow to the ambient temperature
as to the objects surface.
Therefore, specially designed surface probes should be used. The measuring
precision depends mainly on the construction of the probe and of the physics of
the surface itself. If selecting a probe try to choose one with low mass and heat
flow from sensor to handle. Thermally conductive paste can increase the
precision in some cases.
Allowable temperature Range Of Probes
Pt100 Sensors are defined over a wide temperature range. Depending on probe
materials and sort of sensor (e.g. hybrid sensors, wire wound resistors...) the
allowable temperature ranges have to be considered. Exceeding the ranges at
least causes a wrong measuring, it may even damage the probe permanently!
Often it also has to be considered, that the temperature range is just valid for the
probe tube, (plastic-) handles can’t stand the same high temperatures. Therefore,
the tube length should be selected long enough, that temperature keeps low at
the handle.
Self Heating
The measuring current of the instrument is just 0.3 mA. Because of this
comparably low current practically now self heating effect has to be considered,
even at air with low movement the self heating is <= 0.01 °C.
Cooling by Evaporation
When measuring air temperature, the probe has to be dry. Otherwise, the cold
due to the evaporation causes too low measurings.

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HND-T205 K05/0422 page 17
7.10 Fault and System Messages
Display Meaning Remedy
low battery voltage, device will continue to work for
a short time
replace battery
If mains operation: wrong voltage replace power supply, if fault
continues to exist: device damaged
low battery voltage replace battery
If mains operation: wrong voltage Check/replace power supply, if fault
continues to exist: device damaged
No display
or
weird display
Device does
not react on
keypress
low battery voltage replace battery
If mains operation: wrong voltage Check/replace power supply, if fault
continues to exist: device damaged
system error Disconnect battery or power supply,
wait some time, re-connect
device defective return to manufacturer for repai
r
---- Sensor error: no sensor connected Connect sensor to socket
sensor/cable or device defective return to manufacturer for repai
r
Err.1 Value exceeding measuring range Check: Is the value exceeding the
measuring range specified? -
>temperature too high!
Wrong probe connected Check probe
sensor/cable defective -> replace
Err.2 Value below display range Check: Is the value below the
measuring
range specified? -> temperature too
low!
Wrong probe connected Check probe
sensor/cable defective -> replace
Err.3 Value exceeding display range -> set resolution to 0.1° or Auto
Err.4 Value below display range -> set resolution to 0.1° or Auto
Err.7 system error return to manufacturer for repair
7.11 Calibration Services
Calibration certificates can be issued by the factory. For this the device has to be
sent to the manufacturer. Just the manufacturer can check the factory settings
and correct them if necessary.

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page 18 HND-T205 K05/0422
8. Maintenance
Battery Operation
The battery has been used up and needs to be replaced, if „bAt“ is shown in
lower display. The device will, however, continue operating correctly for a certain
time. The battery has been completely used up, if ´bAt´ is shown in the upper
display. The battery has to be taken out, when storing device above 50 °C.
Hint: We recommend removing the battery if device is not used for
a longer period of time!
9. Technical Information
Measurement input: Pt 100,
4-wire, in accordance with
DIN EN 60751
Measuring range: -199.99...+199.99 °C
or -200.0...+850.0 °C
(Fahrenheit values accordingly)
Accuracy: (at nominal temperature 25 °C)
≤ 0.03 °C in the range
-199.99...199.99 °C
≤ 0.1 °C ±1 digit in the range
200.0...850.0 °C
Resolution: 0.01 °C or 0.1 °C
(0.01 °F or 0.1 °F)
Display: 2x 4 ½-digit LCD
Operating temperature: -25 to +50 °C
Storage temperature: -25 to +70 °C
Storage humidity: 0 to 95 % rH (non-condensing)
Probe connection: 4-pin shielded Mini-DIN plug
Output: 0-1 V,
freely scalable or serial interface
(via 3-pin jack, transformer on
RS232 or USB optional)
Power supply: 9 V-monobloc battery
(included in the scope of delivery),
external 10.5 -12 VDC via jack
Current consumption: approx. 1 mA
Material: housing made of impact-resistant
ABS plastic
Protection: IP 65, front
Dimensions: 142 x 71 x 26 mm (H x W x D)
Weight: approx. 155 g

HND-T205
HND-T205 K05/0422 page 19
Scope of functions
Minimum/maximum value memory
Hold function: »freezing« of the current value
Automatik-off function: 1...120 min (can be deactivated)
Zero point and increase entry: zero point and increase correction can be
entered digitally
Logger functions:
Manual: 99 datasets
Cyclic: 16.384 datasets
Adjustable cycle time: 1s ...1 h
Real-time clock: current time with date and year
10. Order Codes
Order-no. Housing design
HND-T 205 Pt 100 input with additional functions
(see techn. data)

HND-T205
page 20 HND-T205 K05/0422
10.1 PT100-measuring probe Class B
Probe type
Temperature/
response
time (t90)
Order-no.
Immersion probe for liquids and gases,
4-wire
Rustproof V4A-tube, plastic handle, approx.
1 m 4-pin PVC-cable, strain relief screw
connection, 4-pin Mini-DIN plug
-50...+400 °C
approx. 10 sec HND-TF01
Immersion probe for liquids and gases,
4-wire
Like HND-TF01, but with ½ DIN Class B
(±0.1 °C at 0 °C)
-50...+400 °C
approx. 10 sec HND-TF02
Immersion probe for liquids and gases,
4-wire
Like HND-TF01, but with 1.10 DIN Class B
(±0.03 °C at 0 °C) and flexible sheath tube,
Ø 3 mm
-50...+400 °C
approx. 10 sec HND-TF03
Insertion probe for soft, plastic media,
4-wire
Techn. data like HND-TF01, but with
needle-shaped knife-edge tip
-50...+400 °C
approx. 10 sec HND-TF04
Insertion probe for soft, plastic
media, 4- wire
Like HND-TF04, but with ⅓ DIN Class B
(±0.1 °C at 0 °C)
-50...+400 °C
approx. 10 sec HND-TF05
Immersion probe for liquids and gases,
4- wire
Rustproof V4A-tube, approx. 1 m 4-pin
PVC-cable, 4-pin Mini-DIN-plug
-50...+400 °C
approx. 10 sec HND-TF06
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