SIKA UM RTD.2 User manual

Please keep this operating manual for future reference.
If the device is resold, please provide the operating manual along with it.
© SIKA •Ba_UMRTD.2_en •01/2019 .
Hand-Held Thermometer
Type UM RTD.2
Operating manual
Operating manual
..................................................page 1 - 36

UM RTD.2
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Table of contents page
0About this operating manual......................................................................................4
1General.....................................................................................................................7
1.1 Introduction.............................................................................................................7
1.2 Parts........................................................................................................................7
1.3 Safety......................................................................................................................7
1.3.1 Compliance with safety standards......................................................................7
1.3.2 Environmental conditions....................................................................................8
1.3.3 Worn devices......................................................................................................8
1.3.4 Disposal..............................................................................................................8
1.3.5 Instructions .........................................................................................................8
1.3.6 Making measurements........................................................................................9
1.3.7 Defects and abnormal stresses ..........................................................................9
1.3.8 Definitions...........................................................................................................9
1.4 Maintenance .........................................................................................................10
2Using the instrument...............................................................................................11
2.1 Power-up...............................................................................................................11
2.1.1 Keyboard ..........................................................................................................12
2.1.2 Measuring terminals..........................................................................................13
2.1.3 USB connector..................................................................................................14
2.1.4 Screen ..............................................................................................................15
2.1.5 Getting started (after power-up)........................................................................15
2.1.6 Operating mode................................................................................................16
3Mode Programming.................................................................................................17
3.1.1 Resistance or temperature measurement using resistive sensors....................17
4Related Functions...................................................................................................19
4.1 Scaling (linearisation)............................................................................................19
4.2 Nulling (tare/offset)................................................................................................20
4.3 Calibrated sensors (point correction)....................................................................21
4.4 Storage of acquisitions in progress.......................................................................23
4.4.1 Save measurement...........................................................................................23
4.4.2 Run...................................................................................................................24
4.4.3 Stop ..................................................................................................................24
4.4.4 Parameters.......................................................................................................24
4.4.5 Display burst.....................................................................................................24
4.4.6 Save burst.........................................................................................................26
4.4.7 Open a burst.....................................................................................................27
4.4.8 New free burst ..................................................................................................27
4.4.9 Burst management............................................................................................27
4.4.10 Statistics ...........................................................................................................27

UM RTD.2
Technical changes reserved - 3 -
5Parameter settings ..................................................................................................28
5.1 Contrast adjustment..............................................................................................28
5.2 Date and time setting.............................................................................................28
5.3 “Preferences” setting.............................................................................................29
5.3.1 Filtering setting..................................................................................................29
5.3.2 Display resolution setting ..................................................................................29
5.3.3 Lighting duration setting....................................................................................29
5.3.4 Key beeping setting...........................................................................................30
5.3.5 Language setting...............................................................................................30
5.3.6 Temperature unit setting ...................................................................................30
5.4 Maintenance menu................................................................................................30
5.5 About the instrument menu ...................................................................................31
6Technical specifications...........................................................................................32
6.1 Measurement Function..........................................................................................32
6.1.1 Resistance measurement..................................................................................32
6.1.2 Temperature by resistive sensors (measurement)............................................33
6.2 Power supply – Autonomy.....................................................................................33
Copyright notice:
The reproduction, distribution and utilization of this operating manual as well as the communication of
its contents to others without express authorization is prohibited. Offenders will b
e held liable for the
payment of damages. All rights reserved in the event of the grant of a patent, utility model or design.

About this operating manual UM RTD.2
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0 About this operating manual
•The operating manual is aimed at specialists and semi-skilled personnel.
•Before each step, read through the relevant advice carefully and keep to the specified
order.
•Thoroughly read and understand the information in the section “Safety”.
If you have any problems or questions, please contact your supplier or contact us directly at:
Dr. Siebert & Kühn GmbH & Co. KG
Struthweg 7-9 • D - 34260 Kaufungen
[phone] • [phone]
[e-mail] • www.sika.net

UM RTD.2 About this operating manual
Technical changes reserved - 5 -
Thanks
We would like to take advantage of this opportunity to thank you for choosing this SIKA precision
measuring device, the result of our hundred-year experience in manufacturing top-quality precision
measuring devices.
Consequently, we can continue to pursue this constant innovation policy, which has benefited our us-
ers for over 100 years. SIKA encourages all comments and welcomes any suggestions you might
have in order to allow us to fine-tune our know-how and improve our future products.
LIMITED GUARANTEE and LIABILITY
SIKA guarantees that this product is free of any manufacturing defects under normal conditions of use
and care. The guarantee period is one year with effect from the date of despatch. Parts, product re-
pairs and services are guaranteed for a period of 90 days. This guarantee only applies to the original
purchaser or to the end user if the latter is a distributor authorised by SIKA, and it does not apply to
fuses, inter-changeable batteries or any product which, according to SIKA, has been tampered with,
modified, neglected or damaged by accident or subjected to abnormal conditions of use and handling.
SIKA guarantees that the software will operate for the most part in compliance with the functional
specifications for a period of 90 days and that said software was recorded on non-faulty media. SIKA
does not guarantee that the software does not contain any mistakes or that it operates continuously.
The distributors authorised by SIKA shall apply this guarantee to products sold new and which have
not been used, but they are not authorised to apply an extended or different guarantee on behalf of
SIKA. Guarantee support is offered if the product has been purchased through a sales outlet author-
ised by SIKA or if the purchaser has paid the applicable international price. SIKA reserves the right to
invoice the purchaser the import charges for repaired parts or spare parts if the product purchased in
a country is sent to another country for repair.
The guarantee obligation on the part of SIKA is limited, at the discretion of SIKA, to refunding the pur-
chase price, or to repairing/replacing free of charge a faulty product returned to a service centre au-
thorised by SIKA within the guarantee period.
To benefit from the guarantee service, contact your nearest SIKA agency or send the product, along
with a description of the problem, carriage and insurance paid (free to destination), to your nearest
SIKA service centre. SIKA will not be held liable for any damage incurred during transport. Once re-
paired under guarantee, the product will be returned to the purchaser, carriage paid in advance (free
to destination). If SIKA considers that the problem was caused by misuse, a modification, an accident
or abnormal operating or handling conditions, SIKA shall provide an estimate of the repair costs and
shall only begin the repair work once appropriate authorisation has been received. Once repaired, the
product will be returned to the purchaser, carriage paid in advance, and the repair and transport costs
will be invoiced to the latter.
THIS GUARANTEE IS EXCLUSIVE AND INCLUDES ALL OTHER GUARANTEES, WHETHER
EXPLICIT OR IMPLICIT, INCLUDING, BUT NOT ONLY, ANY IMPLICIT GUARANTEE AS TO THE
SUITABILITY OF THE PRODUCT FOR SALE OR FOR APPLICATION FOR A SPECIFIC END OR
USE. SIKA CANNOT BE HELD LIABLE FOR ANY PARTICULAR DAMAGE, WHETHER INDIRECT,
ACCIDENTAL OR ENSUING, NOR ANY DAMAGE OR LOSS OF DATA, WHETHER FOLLOWING
INFRINGEMENT TO THE GUARANTEE OBLIGATIONS, ON A CONTRACTUAL, NON-
CONTRACTUAL OR OTHER BASIS.
Since certain countries or states do not allow limitations to an implicit guarantee condition, or the ex-
clusion or limitation of accidental or ensuing damage, the limitations and exclusions of this guarantee
may not apply to every purchaser. If any provision set forth in this guarantee is deemed invalid or in-
applicable by a court with jurisdiction, any such decision will not affect in any way the validity or the
applicability of all other provisions.

About this operating manual UM RTD.2
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Checking the contents of the package
The UM RTD.2 was checked mechanically and electrically prior to despatch. The necessary precau-
tions have been taken to ensure it reaches the user without being damaged.
Nonetheless, it is wise to perform a rapid check to detect any deterioration which may have occurred
during transport. If this is the case, inform the carrier immediately thereof.
The standard accessories are the following:
•This user's manual
•Four 1.5V AA batteries.
•A wrist-strap
•A protective sheath
If the product needs to be returned, use the original packaging where possible and indicate as clearly
as possible the reasons for the return in a note accompanying the device.

UM RTD.2 General
Technical changes reserved - 7 -
1 General
1.1 Introduction
The UM RTD.2 is a portable resistive sensor temperature thermometer (compliant with EC stand-
ards). It is especially designed for measurement and maintenance. It makes it possible to measure
temperatures on site as well as in a laboratory.
The UM RTD.2 features a large number of related functions which extend its range of application, in-
cluding:
•Storage of acquisitions and display in the form of tables or trend curves.
•Use of calibrated sensors with their coefficients of correction
A range of improvements facilitates its operation:
•Rapid access to all functions.
•Intuitive user interface.
•160x160 graphic display
•Connection via 4 mm safety plugs or a circular connector (4 pin).
•Power supply via 4 AA batteries or rechargeable batteries with rapid internal charger (Option).
The device is fitted in an elastomer-sheathed ABS case.
1.2 Parts
General characteristics:
•Portable device powered by 4 AA batteries
•Hand strap for carrying and use on-site
•Graphic liquid crystal display: 160 x 160 pixels
•Choice of language used for messages and programming of functions, gauges and parame-
ters via 6-key keyboard + 1 navigator
•Backlit display accessible via a keyboard key, with the possibility of automatic black-out after a
specific programmable period of inactivity
•Appearance: ABS case (elastomer-sheathed)
•Dimensions: 157 mm x 85 mm x 45 mm (without sheath)
•Weight: 306 g (without sheath)
•IP54 tightness in compliance with standard EN 60529
1.3 Safety
1.3.1 Compliance with safety standards
The device complies with the applicable standards in force on the subject of electrical safety (EN
61010) as well as on the electromagnetic compatibility of the electrical measuring instruments (EMC:
EN61326).
These user manual contain information and warnings which must be observed by the user to protect
the latter against the dangers of electricity, to ensure the safe operation of the device and to protect it
against any mishandling which could damage or compromise the safety of use of the device.

General UM RTD.2
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1.3.2 Environmental conditions
In accordance with publication CEI 359: operating category I.
Range of application of standards from 0 to 2200 m.
Reference temperature range: 23°C ± 5°C
Reference relative humidity: 45 % to 75 %.
Nominal operating temperature range: -10°C to +50°C
Nominal operating relative humidity: 20 % to 80 % non-condensing.
Operating temperature range limit: -15°C to +55°C
Operating relative humidity limit: 10 % to 80 % (70 % at 55°C).
Storage and transport temperature range limit: - 30°C to + 60°C (without the batteries).
1.3.3 Worn devices
Worn electrical devices can pollute the environment. We recommend you refrain from disposing of
this device in an ordinary waste bin, but rather that you use the recycling circuits available locally. If
not, you can return the device to us, and we will take care of its disposal free of charge.
1.3.3.1 Waste generated by the device
List of waste classified according to the decree published in the Official French Gazette dated 20th
April 2002. Decree no. 2002-540.
•16.02.14: Waste originating from electronic equipment:
Printed circuit boards making up the device.
•16.06.02: Batteries and storage battery (dangerous)
Alkaline Batteries (or NI-MH batteries).
•15.01.02: Packaging
ABS plastic device casing.
Elastomer conduit.
1.3.4 Disposal
Opening the device: unscrew the screw on the battery compartment, followed by the 5 screws secur-
ing the 2 shells. Separate the 2 shells. Separate the PCB from the upper shell.
With regard to the batteries, you will find them in the battery compartment (see commissioning chap-
ter).
In the case of the pack of batteries, there are 2 contaminants: NI-MH (Nickel-Metal Hybride) batteries
and a PCB. Separate these 2 items.
1.3.5 Instructions
The device was designed to operate safely if the instructions provided in the accompanying docu-
ments are followed. Any other use may jeopardise the safety of the operator. Any use other than
those specified in the instructions is therefore dangerous and forbidden.

UM RTD.2 General
Technical changes reserved - 9 -
1.3.6 Making measurements
The measuring leads and wires must be in good condition and must be replaced if their insulation ap-
pears faulty (insulating material cut, burned, etc...).
When the instrument is connected to the measuring circuits the terminals can be dangerous, therefore
do not place your hands near a terminal, whether used or not.
Never exceed the protection value limits indicated in the specifications.
When the order of size of the measured value is not known, ensure that the starting measurement
range is has high as possible, or select automatic range change mode.
Before changing function, disconnect the measuring wires from the external circuit. When voltage
measurements are being made, even weak ones, keep in mind that the circuits may feature a dan-
gerous voltage for the operator compared to the ground.
Do not make any measurements when the device is linked up to another device using the USB link or
when the batteries are being charged (option).
1.3.7 Defects and abnormal stresses
Every time you believe the protection may have been compromised, switch off the device and prevent
it from being switched back on unexpectedly.
The protection may be impaired in the following cases, for example:
•The device is visibly worn.
•The device is no longer able to make precise measurements.
•The device was stored in unfavourable conditions.
•The device has undergone severe stresses during transport.
1.3.8 Definitions
1.3.8.1 Definition of the category and degree of pollution
CAT II 60V:
The notion of categories determines the maximum transient voltage that can be applied to the meas-
urement inputs (it is also called overvoltage category). For the SIKA UM RTD.2, the maximum per-
missible overvoltage is 60V (DC or AC)
POL 2:
The notion of pollution determines the clearance between circuits. Degree 2 authorises temporary
conductivity caused by condensation.

General UM RTD.2
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1.3.8.2 Table of symbols used
Symbol
Name
Attention: see the accompanying documents
Earth
Compliant with the European Union directives
Category II, Pollution 2.
Maximum common mode voltage compared with
the ground=60V
Worn device: see chapter 1.3.3
1.4 Maintenance
The device must always be repositioned in accordance with the instructions provided herein. Any in-
complete or incorrect assembly could compromise the safety of the operator.
The authority responsible must regularly ensure that all safety-related items are not worn and ensure
all the preventive maintenance operations required are performed.
Before opening the device for any maintenance operations, you must make sure that all the wires are
disconnected from the appliance.
All adjustments, maintenance and repair work on the open device must be avoided as much as pos-
sible and, when these are indispensable, they must be performed by qualified staff, who are well
aware of the risks involved.

UM RTD.2 Using the instrument
Technical changes reserved - 11 -
2 Using the instrument
In order to use the device in all the safety required, all operators must read the paragraph on safety
carefully, along with the paragraph below.
2.1 Power-up
The device is delivered with 4 AA batteries of 1.5V each. It is wise to place these batteries in the
compartment provided for this purpose. To open up the compartment, unscrew the screw on the back
of the box. Once the batteries are in place, screw the cover back on.
Observe the polarity: an incorrect battery positioning could damage the device. The correct polarity is
indicated inside the compartment.
The figure below illustrates how to open the battery compartment as well as the correct positioning of
each battery.
After inserting the dry cells (or NiMH batteries) correctly, press the ON/OFF key to turn ON the prod-
uct.
To turn the unit off completely, press the ON/OFF key until the "Instrument in power off mode" screen
comes up.
Battery compartment
cover screw

Using the instrument UM RTD.2
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2.1.1 Keyboard
The keyboard features:
•2 function keys (F1 and F2) for the selection of the various menus displayed on the screen.
•The navigator, consisting of 4 arrows (up (
↑
), down (
↑
),right (

), left (

)
•A clear key (CLEAR).
•A device on/off and backlighting on/off key (ON/OFF).
Press briefly to start the device. During operation, press briefly to turn the lighting on or off.
Press it longer for 2 seconds to stop the device.
•A validation key (VAL).
•A HOLD key allows you to suspend a process temporarily (when pressed briefly).
Function key
F2
Validation
key (VAL)
ON / OFF key
Navigation
key
HOLD key
CLEAR key
Function key
F1

UM RTD.2 Using the instrument
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2.1.2 Measuring terminals
The UM RTD.2 is fitted with 4 safety bushes (4 mm in diameter) ad a circular 4-point connector. This
wiring is used in measurement mode.
2 wire measurement
3 wire measurement
4 wire measurement
NOTE:
An adjustment of 2, 3 or 4 wire measurement is not necessary. The numbers of wires will be detected
automatically.
Measurement:
(positive)
4-wire
measurement
Measurement:
(negative)
3-wire
measurement
terminal

Using the instrument UM RTD.2
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NOTE:
When using the device with resistance measurement, you must respect the polarities.
2.1.3 USB connector
The UM RTD.2 is fitted with a USB connector (mini B) intended for uploading new software versions,
device adjustment and general connection to PC.
USB port
(mini B connector)
Measurement:
(negative)
4-wire
measurement
terminal
3-wire
measurement
terminal
Measurement:
(positive)

UM RTD.2 Using the instrument
Technical changes reserved - 15 -
2.1.4 Screen
The UM RTD.2 is fitted with a graphic LCD display with back-lighting. The display resolution is 160 x
160 pixels. In normal operating conditions, the display is divided up into seven horizontal fields:
•The 1st field indicates the operating mode (Measurement).
•The 2nd field indicates the date, time and battery charge.
•The 3rd field is reserved for icons indicating the operating mode (Scaling, filtering…etc).
•The 4th field indicates the operating mode, the range and certain related functions.
•The 5th field indicates the value of the measurement, expressed in Ω, °C, °F
•The 6th field indicates the min., average and max. values of the measurement.
•The 7th field indicates the function of keys F1 and F2.
The table below provides a definition of each pictogram displayed on the screen:
Symbol
Description

Scaling

On hold
Filtering
Error (over-calibration in measurement or error on the
value emitted…)
Incremental mode using the arrows
Battery life indication
Acquisition in progress (the value on the right of the pic-
togram indicates the number of values recorded)
The table below provides a definition of each pictogram of the function keys
Symbol
Description
Tab key
Open a drop-down list
Close a drop-down list
Delete the selected item
Clear the selection
Add the item being edited
2.1.5 Getting started (after power-up)
On power-up (inserting the batteries or accu pack), the device is automatically turned on (loading the
software in the memory). At this stage, we advise against connecting the device to an external circuit.
To avoid any signal conflicts, the device switches to measurement mode.
1st field indicating
the operating
mode
2nd field indicating
the Date, time and
battery charge.
3rd field indicating
the configuration
by pictograms
4th field indicating
the measurement,
the range and the
main related
functions.
5th field
indicating the
value of the
measurement
(in Ω, °C,°F )
6th field indicating
the min, ave and
max. measurement
values.
7th field indicating
the functions of
the F1 and F2 keys.

Using the instrument UM RTD.2
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2.1.6 Operating mode
There is one operating mode:
•Measurement of resistive sensors (displayed in Ω or °C or °F ),
The functional and electrical characteristics not to be exceeded are described below:
2.1.6.1 Resistance/temperature measurement
The following ranges are available:
Range
400 Ω
(for PT100)
3600 Ω
(for PT1000)
Resolution (display)
10 mΩ or 0.01 °C or 0.01 °F
100 mΩ or 0.01 °C or 0.01 °F
Scope of range:
0 Ω up to 400 Ω
-220 °C up to 850 °C
-364 °F up to 1562 °F
0 Ω to 3600 Ω
-220 °C to 760 °C
-364 °F up to 1400 °F
Scaling
yes
yes
2.1.6.2 Electrical characteristics not to be exceeded.
Function
Range
max Vin
Ω measurement
400 Ω / 3600 Ω
60 V

UM RTD.2 Mode Programming
Technical changes reserved - 17 -
3 Mode Programming
3.1.1 Resistance or temperature measurement using resistive sensors
•The function type selection (Resistive sensor type) is made using the F1 key
(configuration menu).
•Using the navigation keys (
↑
and
↓
), position the cursor in the Function field.
•Confirm the latter using the VAL key.
In the MEASUREMENT CONFIG. menu, position the cursor in the Probe field using the F1 key.
•Enter the Probe menu using the F2 key.
•Choose the type of sensor (PT50, PT100, PT200…), using the navigation keys (
↑
and
↓
).

Mode Programming UM RTD.2
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•Press VAL to confirm.
•Using the F1 key, define the Unit by positioning the cursor on it.
•Enter the menu by pressing F2.
•Using the navigation keys (
↑
and
↓
), choose the unit.
•Press VAL to confirm.
NOTE:
Attention, the choice of °C or °F is made in the Configuration/Setup/Preferences/Display unit
menu
•Press VAL (again) to confirm the desired function and go back to the measurement screen.

UM RTD.2 Related Functions
Technical changes reserved - 19 -
4 Related Functions
4.1 Scaling (linearisation)
The scale correction function performs conversion operations between the electrical values measured
and the physical values converted.
This linearisation operation makes it possible to correct partially the errors induced by non-linear
sensor/converter systems.
The Scaling function makes it possible to define up to 10 right-segments, i.e. 11 points, in order to
approach as much as possible the non-linear response curve, and to make the scale corrections ac-
cording to each segment.
The pictogram is displayed on the screen in the active window when the scaling function is ena-
bled.
The Configuration/Scaling/Define/List of Points menu makes it possible to program up to
10 lines of 2 values
X and Y= f(X)
In measurement mode: X = Value measured
Y = Value Displayed.
In emission mode: X = Value displayed
Y = Value emitted.
The lines entered are sorted according to the X in increasing order, to scale an X-value, the device
seeks the 2 lines n and m=n+1 which frame it, and extrapolates linearly:
Y = Yn + (X-Xn) x (Ym-Yn)/(Xm-Xn)
Use the function keys to edit the points:
To add a line: enter X and Y, then enable the function key.
To select a line in a list, use the Up and Down navigation keys.
To delete a selected line, use the key.
To move from one field to the next, use the key.

Related Functions UM RTD.2
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The Configuration/Scaling/Define/Parameters menu makes it possible to define the format (Num-
ber of digits displayed) and unit.
Once the parameters have been set, the scaling is automatically enabled. To disable it, enter the
Configuration/Scaling ON menu, select OFF and confirm by pressing the VAL key.
4.2 Nulling (tare/offset)
The relative measurement function available on the device makes it possible to cancel a constant or
spurious value via programming.
When the relative measurement function is enabled, the symbol is displayed on the measurement
screen.
The NULLING/Define menu makes it possible to program the value of the Tare (positive or negative).
This value is obtained from the measurements:
Value Displayed = Value measured – Value of the Tare
Scaling pictogram
Pictogram of the
TARE mode