Kobold HND-T126 User manual

Operating Instructions
for
Precision Second Portable
Thermometer
Model: HND-T126

HND-T126
page 2 HND-T126 K03/0422
1. Contents
1.Contents ........................................................................................................ 2
2.Note .............................................................................................................. 3
3.Instrument Inspection .................................................................................... 3
4.Regulation Use ............................................................................................. 3
5.Operating Principle ........................................................................................ 4
6.Electrical Connection .................................................................................... 4
7.Operation / Configuration / Adjustments ....................................................... 5
7.1Safety Instructions: .............................................................................. 5
7.2In General: Measuring Temperature with Thermocouples ................... 6
7.3MIN-/MAX Value Memory .................................................................... 6
8.Technical Information .................................................................................... 9
9.Order Codes ............................................................................................... 10
9.1Thermocouple element meas. probe type K Class 1 ......................... 10
9.2Accessories ....................................................................................... 11
10.EU Declaration of Conformance ................................................................. 12
Manufactured and sold by:
Kobold Messring GmbH
Nordring 22-24
D-65719 Hofheim
Tel.: [phone]
Fax: [phone]
E-Mail: [email protected]
Internet: www.kobold.com

HND-T126
HND-T126 K03/0422 page 3
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 Second Portable Thermometer model: HND-T126
4. Regulation Use
Any use of the Precision Second Portable Thermometer, model: HND-T126,
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.

HND-T126
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5. Operating Principle
The KOBOLD manual temperature measuring units HND-T120/T126 make it
possible to measure the temperature with a type K thermocouple element probe.
With a very large selection of temperature probes, these compact housings can
also perform nearly any measurement task.
Some application areas are very fast measurements on surfaces, in liquids, soft
plastic media, air/gases, tiny objects, etc.
6. Electrical Connection
When using a power supply unit, please note that operating voltage has to be 10
to 12 VDC. Do not apply overvoltage!! Cheap 12 V-power supply units often have
excessive no-load voltage. We, therefore, recommend using regulated voltage
power supply units. Trouble-free operation is guaranteed by our power supply
HND-Z002. Prior to connecting the plug power supply unit with the mains supply,
make sure that the operating voltage stated at the power supply unit is identical to
the mains voltage.

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HND-T126 K03/0422 page 5
7. Operation / Configuration / Adjustments
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 not subjected to any other climatic conditions than those stated
under 8 Technical Information.
If the device is transported 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.
2. If device is to be connected to other devices the circuitry has to be
designed most carefully. 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.
3. Warning: Just devices with mains input: If device is operated with a
defective mains power supply (e.g. short circuit from mains voltage to
output voltage) this may result in hazardous voltages at the device (e.g. at
sensor socket)
4. If there is a risk whatsoever involved in 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.
5. Warning: Do not use this product as safety or emergency stop devices 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.

HND-T126
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7.2 In General: Measuring Temperature with Thermocouples
 Temperature differences between the instrument and the probe connector may
produce measuring errors. Therefore, wait after connecting or touching the
connector until the temperatures have adjusted (can take up to 15 min.).
 The device is suitable to measure large temperature ranges. But consider the
allowable range of your probe!
 When measuring air temperature, the probe has to be dry. Otherwise, the cold
due to the evaporation causes to low measurings.
7.3 MIN-/MAX Value Memory
watch MIN value (Lo):
 press key ‘Mode‘ shortly once
 display changes between ‘Lo‘ and MIN value
watch MAX value (Hi):
 press key ‘Mode‘ shortly once again
 display changes between ‘Hi‘ and MAX value
restore current value:
 press key ‘Mode‘ shortly once again
 current value is displayed
clear MIN-/MAX- value:
 press key ‘Mode‘ for 2 seconds
 MIN and MAX value are cleared. The display shows shortly ‘CLr‘.
7.3.1 Hold – Function
By shortly pressing the ‘Hold‘ key the currently measured value is ‘frozen‘,
The display changes between ‘Hld‘ and the ‘frozen‘ value Pressing the key ‘Hold‘
shortly once again resets the display to the current value.
Please note: Measuring keeps on running in the background, the
MIN/MAX values are updated continuously.

HND-T126
HND-T126 K03/0422 page 7
7.3.2 Offset and Scale Adjustment
The offset and scale adjustment is mainly intended to be used to compensate
errors of the external temperature probes. The display value is given by following
formula:
unit = °C:
Display = (measured value - offset) * (1 + scale adjustment [%])
unit = °F:
Display = (measured value – 32 °F - offset) * (1 + scale adjustment [%]) + 32 °F
To adjust a measuring offset and scale proceed like follows:
1. Switch off the instrument.
2. Press the ‘Hold‘ key while switching on the instrument. Keep ‘Hold‘ key
pressed until ‘OFS‘ appears in the display (about 3 seconds).
3. Press ‘Mode‘ or ‘Hold‘ key, the currently selected offset adjustment
appears.
4. Choose the desired value by pressing ‘Mode‘ or ‘Hold‘ key. (max. input
range: ±5.0 °C or ±9.0 °F)
5. Enter by pressing On/Off-key: SCL appears in the display
6. Press ‘Mode‘ or ‘Hold‘ key, the currently selected scale adjustment
appears
7. Choose the desired value by pressing ‘Mode‘ or ‘Hold‘ key. (max. input
range: ±5.00 %) The input is displayed in %.
example:
scale adjustment is 4.00 => scale is increased by 4.00 % => Scale = 104 %
At a measured value of 100.0 (without offset correction) the instrument
would show 104.0
8. Store the values by pressing ‘On/Off‘ key.
Please note: If during the changing of the offset adjust no key is
pressed within 20 seconds, the input will be aborted. Eventually
made changes won’t be stored!

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7.3.3 Configuration of the Instrument:
To configure the instrument, proceed like follows:
1. Switch off the instrument.
2. Press the ‘Mode‘ key while switching on the instrument, keep ‘Mode‘ key
pressed until ‘PoF‘ appears (about 3 seconds).
I.) Auto Power Off Time
The auto power off time is entered in minutes. If no key is pressed during a
measuring, the instrument switches itself off automatically after the entered
period of time.
3. Press ‘Mode‘ or ‘Hold‘ key, the currently selected power off time will be
displayed (off, 1..120 min)
4. Enter the desired time by pressing ‘Mode‘ or ‘Hold‘ key.
Possible input:
off: The auto power off function is deactivated (permanent operation)
1...120: auto power off time in minutes.
5. Confirm the value by pressing ‘On/Off‘ key, ‘Uni‘ appears in the display
II.) Display Unit: Choice of the temperature display unit: °C or °F – valid for
all temperature displays.
6. Press ‘Mode‘ or ‘Hold‘ key, the currently selected unit will be displayed (°C
or °F)
7. Enter the desired unit by pressing ‘Mode‘ or ‘Hold‘ key.
8. Confirm the value by pressing ‘On/Off‘ key, ‘rES‘ appears in the display
III.) Display Resolution: Choice of the temperature display resolution: 1° or
0.1°
9. Press ‘Mode‘ or ‘Hold‘ key, the currently selected resolution will be
displayed (1° or 0.1°)
10. Enter the desired resolution by pressing ‘Mode‘ or ‘Hold‘ key.
0.1°: Display 0.1 °C or 0.1 °F. When exceeding the display range
(>199.9°) the display automatically changes to 1° resolution
1°: Display with 1 °C or 1 °F resolution
11. Confirm the value by pressing ‘On/Off‘ key. The vales will be stored, the
instrument will restart (segment test).
Please note: If during the configuration no key is pressed within
20 seconds, the configuration will be aborted. Eventually made
changes won’t be stored!
7.3.4 System Messages:
Er. 1 = measuring range has been exceeded
Er. 2 = meas. values have fallen below perm. range
Er. 7 = System fault - the device has detected a system fault (defective or far
outside allowable ambient temperature range)
--- = No temperture probe connected or probe defective
If the symbol "BAT“ is displayed at the left side of display, the battery is weak,
measuring can be continued for a certain time. If “bAt“ is displayed in the main
display the battery is used up and needs to be replaced. Measuring is no more
possible.

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8. Technical Information
Technical data
Measurement input: thermocouple element, type K
Measuring range: -220 °C...+1372 °C
Accuracy: (±1 digit, at nominal temp. 25 °C)
±0.5 °C / ±0.2 % of full scale
Resolution: 0.1 °C or 1 °C (0.1 °F or 1 °F)
Display: 2x 4½ digits
Operating temp.: -25 °C...+50 °C
Storage temperature: -25 °C...+70 °C
Probe connection: for 2-pin standard flat connector
Power supply: 9 V-monobloc battery
(included in the scope of delivery)
Current consumption: approx. 0.15 mA
Battery service life: approx. 2000 h
Material: housing made of impact-resistant
ABS plastic
Protection: IP65, front
Dimensions: 142 x 71 x 26 mm (HxWxD)
Weight: approx. 150 g
Scope of functions:
 Auto-off function:
1 to 120 minutes adjustable or continuous operation
 Minimum/maximum value memory
 Hold function: »Freezing« of the current value

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9. Order Codes
Order-no. Housing design
HND-T126 Thermocouple element input
9.1 Thermocouple element meas. probe type K Class 1
Order. No. Device version
HND-TF31
Tire probe
insertion probe with depth stop adjustable to a depth of approx. 14 mm), for
soft, plastic media
HND-TF32 Surface probe
for straight and solid metal surfacesspring-mounted Cu-plate
HND-TF33 Surface, diving, air and gas probe
for solid surfaces of all kinds, probe not spring-mounted
HND-TF34 Surface probe
for solid surfaces of all kinds, spring-tip
HND-TF35 Surface probe
for fast measurements
HND-TF36 Surface probe
for fast measurements
HND-TF37 Immersion probe
economical, fast, spring-mounted (fixed), Ø 1.5 mm, L = 130 mm
HND-TF38 Immersion probe for the highest temperatures
sheath thermocouple element, flexible, Ø 1.5 mm, L = 150 mm
HND-TF39 Insertion probe for the highest temperatures
economical, spring-mounted (fixed), Ø 3.0 mm
HND-TF40 Insertion probe
for soft plastic media, Ø 1.5 mm
HND-TF41 Insertion probe
for higher temperatures in gases, air and for solid surfaces (not for liquids)
HND-TF42 Air and gas probe
for measuring room temperature, smoke gases, etc.
HND-TF43 Surface magnet probe
adheres to magnetic materials heavy duty design (greater magnetic cohesion)
HND-TF44 Immersion probe
also for gases and air also suitable for surfaces on a limit basis)

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9.2 Accessories
Description Order no.
Protective housing bag, nappa leather, with cut-out for round sensor connection
for HND-T105, HND-T205 HND-Z011
Protective housing bag, nappa leather, with cut-out for square sensor connection
for HND-T110, HND-T120, HND-T125 HND-Z013
Protective housing bag, nappa leather, with cut-out for two sensor connections
for HND-T115 and HND-T215 HND-Z014
Case with recess (275x229x83 mm) HND-Z021*
Universal case with egg crate foam (275x229x83 mm) HND-Z022*
Large case with recess (394x294x106 mm) HND-Z023*
Windows software for setting, data read out, and printing of the data of housings
of the HND-series with logger function HND-Z034
Software for recording measurement data on a computer, for instruments of the HND-
series without logger function BUS-S20M
Flat connector type N, free of thermoelectric voltage,
for connection of thermocouple element probe HND-TF21/22/23 HND-Z041
Additional probe accessories upon request
* Observe instrument dimensions

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10. EU Declaration of Conformance
We, KOBOLD Messring GmbH, Hofheim-Ts., Germany, declare under our sole
responsibility that the product:
Precision Second Portable Thermometer Model: HND-T126
to which this declaration relates is in conformity with the standards noted below:
EN 61326-1:2013
Electrical equipment for measurement, control and laboratory use - EMC
requirements – Part 1: General requirements
EN 50581:2012
Technical documentation for the assessment of electrical and electronic products
with respect to the restriction of hazardous substances
Also, the following EC guidelines are fulfilled:
2014/30/EU Electromagnetic compatibility
2011/65/EU RoHS (category 9)
2015/863/EU Delegated Directive (RoHS III)
Hofheim, 23 Nov. 2021
H. Volz M. Wenzel
General Manager Proxy Holder