SIKA TP 38 Series User manual

Operating instructions
Precision Temperature Calibrator
TP 38 … / TP 38 … E

1 Instrument description and intended use TP 38 … / TP 38 … E
Subject to technical changes 2 Ba_TP38-E_en 12/2014
SIKA Dr.Siebert & Kühn GmbH & Co.KG Struthweg 7–9 D-34260 Kaufungen [phone] [phone] [email protected] www.SIKA.net
Contents
1 Instrument description and intended use ........................................................................................................3
2 Safety instructions ...........................................................................................................................................4
2.1 Qualified personnel...............................................................................................................................4
2.2 Basic safety regulations........................................................................................................................4
2.3 Safety instructions for TP 38 … / TP 38 … E .......................................................................................4
2.4 Ground wire monitoring (TP 38 650 and TP 38 650 E)........................................................................5
3 Unpacking and inspecting the delivery............................................................................................................6
4 Structure of the temperature calibrator............................................................................................................6
4.1 Overview of components ......................................................................................................................6
4.2 The control panel..................................................................................................................................7
4.3 The metal calibration block...................................................................................................................8
4.4 Integrated measuring instrument..........................................................................................................8
4.5 PC connection, power switch and type label........................................................................................9
4.6 Components of the calibrator bottom..................................................................................................10
4.7 Warnings used....................................................................................................................................10
4.8 Accessories (included in the scope of delivery)..................................................................................11
4.9 Optional Accessories..........................................................................................................................11
4.10 DKD Calibration Certificate...............................................................................................................12
5 Commissioning of the calibrator....................................................................................................................13
5.1 Intended use .......................................................................................................................................13
5.2 Checks and activities prior to commissioning.....................................................................................13
5.3 Start procedure with TP 38 650 / TP 38 650 E...................................................................................14
6 Operation of the calibrator............................................................................................................................15
6.1 Description of the controls ..................................................................................................................15
6.2 Starting the Calibrator.........................................................................................................................17
6.3 Description of the control mode..........................................................................................................18
6.5 Settings and Descriptions in Select Mode..........................................................................................22
6.6 Description of the switch test mode....................................................................................................35
6.7 Description of the step test mode .......................................................................................................36
7 Cooling of the block and replacing the insert ...............................................................................................37
7.1 Cooling of the block ............................................................................................................................37
7.2 Replacing the adaptor inserts.............................................................................................................37
8 Troubleshooting.............................................................................................................................................37
8.1 Replacing the Fuses...........................................................................................................................37
8.2 Eliminating Faults................................................................................................................................38
9 Recalibration and Adjustment........................................................................................................................38
10 Transport and Storage.................................................................................................................................39
11 Care and Maintenance................................................................................................................................39
12 Disposal.......................................................................................................................................................39
13 Technical Data............................................................................................................................................40
13.1 TP 38 165 / TP 38 165 E (-35 to 165 °C)..........................................................................................40
13.2 TP 38 650 / TP 38 650 E (Ambient Temperature up to 650 °C) ...................................................41
13.3 Heat-up and Cool-down times ..........................................................................................................42
13.4 Technical data of the sensor inputs..................................................................................................43

1 Instrument description and intended use TP 38 … / TP 38 … E
Subject to technical changes 3 Ba_TP38-E_en 12/2014
SIKA Dr.Siebert & Kühn GmbH & Co.KG Struthweg 7–9 D-34260 Kaufungen [phone] [phone] [email protected] www.SIKA.net
1 Instrument description and intended use
The calibrator is a portable unit for service, industry and laboratory tasks. The SIKA temperature calibrators
are intended to
calibrate thermometers,
temperature switches/thermostats,
resistance thermometers and
thermal elements.
The operational safety of the supplied instruments is only guaranteed if they are operated according to their
intended use (inspection of temperature sensors). Specified limit values (see “Technical Data”) should never
be exceeded.
It is your responsibility to select the instrument which is suitable for your specific application, to connect it
correctly, to carry out tests and to maintain all the components.
Various instrument versions are manufactured. The respective type plate on the calibrator displays the version
of each device.
These operating instructions apply to the following calibrator types:
TP 38 165 (cooling and heating) -35 °C up to 165 °C (with integrated measuring instrument)
TP 38 165 E (cooling and heating) -35 °C up to 165 °C (without integrated measuring instrument)
TP 38 650 (heating) ambient temperature up to 650 °C (with integrated measuring instrument)
TP 38 650 E (heating) ambient temperature up to 650 °C (without integrated measuring instrument)
The temperature calibrator consists of a controllable metal block that is capable of heating and cooling. The
metal block features the holder for the probe. You have to enter a setpoint value via an operator panel. The
nominal and actual values of the calibrator are displayed on the screen.
During the calibration, the temperature measured by the probe is compared to that displayed by the calibrator.
Various types of probes can be calibrated.
Thermometers/SIKA machine thermometers/bimetal thermometer/dial thermometer
These are checked by comparing the temperature measured and displayed by the probe to that
displayed by the calibrator. Thereby take note of the test instructions of the thermometer producer.
Temperature switches/Thermostats
The probe is inserted into the metal block and connected to an external display. The switch setting or
switch point is signaled via this monitoring display. In the case of calibrators with integrated measuring
instrument, the probe can be connected directly. An automatic temperature switch test can be
performed. Thereby take note of the test instructions of the thermometer producer.
Resistance thermometers and thermocouples
A separate temperature measuring instrument is required for the test. These devices are checked by
comparing the temperature displayed on the external measuring instrument with the block temperature.
In the case of TP 38… calibrators with integrated measuring instrument, the probe can be connected
directly. An automatic calibration can be performed.
The calibrators TP38 165 and TP38 650 are equipped with an integrated measuring instrument at which the
test specimen can attached directly. TP 38 165 E and TP 38 650 are supplied without an integrated measuring
instrument.

2 Safety instructions TP 38 … / TP 38 … E
Subject to technical changes 4 Ba_TP38-E_en 12/2014
SIKA Dr.Siebert & Kühn GmbH & Co.KG Struthweg 7–9 D-34260 Kaufungen [phone] [phone] [email protected] www.SIKA.net
2 Safety instructions
Always read the operating instructions carefully prior to using the new product. Always adhere to the
instructions contained herein, especially the safety instructions; otherwise, there is a potential risk of operator
injury and damage to the calibrator and the sensors being tested.
Even though SIKA provides assistance for the use of the product through personal consultation or the
respective literature, it is the responsibility of the customer to determine the suitability of the product for the
specific application.
The temperature calibrator is a state-of-the-art device. This relates to the accuracy, functioning and the safe
operation of the calibrator. However, professional and safety conscious conduct of the operator is required to
ensure safe operation.
2.1 Qualified personnel
The personnel entrusted with start-up, operation and maintenance of the calibrator / micro calibration
bath have to be suitably qualified; the required knowledge can be gained via training courses or
appropriate on-the-job instruction. The personnel have to be familiar with the contents of these
instructions, which have to be available to them at all times.
The electrical connection should only be carried out by a fully qualified electrician.
All work has to be carried out in accordance with existing national regulations on accident prevention
and safety at work and with any internal regulations of the operator, even if they are not specified in
these instructions.
Always observe the safety information contained in these operating instructions.
2.2 Basic safety regulations
Only operate the calibrator when it is in correct, fully functional condition.
The calibrator is energized with hazardous voltages via a mains cable. Improper use can result in
personal injuries.
Correct and safe operation of the calibrator demands correct transport, storage, installation and
assembly, as well as proper use and careful operation and maintenance.
The calibrator should only be used for its intended purpose. Furthermore, hazardous media should not
be used and all technical specifications have to be observed.
If faults cannot be cleared, immediately shut down the calibrator and ensure that it cannot be started up
accidentally.
Repairs should only be carried out by the manufacturer. Tampering with or modifying the calibrator is
strictly prohibited.
Prior to replacing the safety fuse, always de-energize the calibrator completely by disconnecting the
mains cable from the mains outlet.
Ensure that the complete operating instructions are always available in excellent condition at the
calibrator installation site.
Ensure that calibrator operators receive regular instruction in the various aspects of occupational health
and safety and environmental protection and have full knowledge of these operating instructions and the
safety information contained herein.
The customer is to verify the applicability of the product on the basis of our technical details. By this
checking, hazards and risks are subrogated to the customer and our warranty expires.
2.3 Safety instructions for TP 38 … / TP 38 … E
Remove all highly combustible media from the vicinity of the calibrator and ensure that the calibrator
cannot come into contact with easily inflammable or explosive substances.
Make sure that the integrated fans can always deliver sufficient cooling air. Do not impair the air supply
by placing the calibrators on a soft, resilient surface.
Connect the calibrators to a power circuit with minimum risk of a power failure, since it will no longer be
possible to supply cooling air in the case of a power failure

2 Safety instructions TP 38 … / TP 38 … E
Subject to technical changes 5 Ba_TP38-E_en 12/2014
SIKA Dr.Siebert & Kühn GmbH & Co.KG Struthweg 7–9 D-34260 Kaufungen [phone] [phone] [email protected] www.SIKA.net
Make sure that the adapter inserts and probes are not contaminated with any substances (e.g. oil) that
may cause ignition or explosion during heating.
Attention
Never fill liquids into the adapter sleeve.
Danger of burn!
Before touching the block or the adapter insert, check the current block temperature since a heated
calibrator bears the imminent risk of burns.
Never remove adaptor inserts from a heated block since heated adapter inserts bear a fire hazard.
Never remove probes from a heated block since these bear the imminent risk of burns.
Never leave a heated calibrator unattended.
Always let a heated calibrator cool to below 50 °C before disconnecting it from the mains.
Transport the calibrator only after it has completely cooled.
Since the housing of the calibrator is made of metal, only power cables with ground wire may be used.
Operate the calibrator exclusively with the power cable provided. The power cable connector is on the
bottom of the calibrator, i.e. when using a different type of cable, the calibrator may topple over.
If the calibrator is not used for an extended period of time, humidity may penetrate into the heating
element due to the material used (magnesium oxide).
After transporting or storing the calibrator in a humid environment, the heating elements must thus be
heated slowly when starting the calibrator. During the drying process the calibrator will not have attained
the isolation voltage required for protection class I (refer to chapter 5).
The noise levels of all block calibrators of the TP 38… / TP 38… E series are below 70 dbA.
2.4 Ground wire monitoring (TP 38 650 and TP 38 650 E)
For checking the basic isolation of the heater, the calibrator is equipped with a ground wire monitor. The
monitoring unit operates independently of the other controller components and switches off the power supply
of the heater as soon as the calibrator loses the connection to the ground wire system of the isolation. This
condition can only be noticed by the fact that the calibrator will be cooled to room temperature. Once the
connection to the ground wire system has been re-established, the monitoring unit automatically reconnects
the heating circuit to the power system (refer to chapter "Troubleshooting").
If problems or questions arise, please contact your supplier or the manufacturer directly:
Dr. Siebert & Kühn GmbH & Co. KG
Struthweg 7-9 D - 34260 Kaufungen Germany
: 05605-803 0 05605-803 54
[email protected] www.sika.net

3 Unpacking and inspecting the delivery TP 38 … / TP 38 … E
Subject to technical changes 6 Ba_TP38-E_en 12/2014
SIKA Dr.Siebert & Kühn GmbH & Co.KG Struthweg 7–9 D-34260 Kaufungen [phone] [phone] [email protected] www.SIKA.net
3 Unpacking and inspecting the delivery
Unpack your calibrator.
The calibrator is delivered in special protective packaging. Keep this protective packaging for sending the
instrument for recalibration or repairs to the manufacturer.
Inspect the delivery first.
Standard delivery temperature calibrator:
- Calibrator
- Sleeve remover
- Mains connection cable
- Test certificate
- Operating instructions
4 Structure of the temperature calibrator
4.1 Overview of components
The temperature calibrators consists of a control unit with operator panel and a metal block. The two
components are accommodated in a robust metal housing together with fans. In the center of the metal block
there is a bore for holding the probe. Ex works, an integrated measuring instrument can be installed in the
front side of the calibrator (refer to chapter 4.4).
The overview shows a temperature calibrator of the TP 38 165 / TP 38 165 E series, identified by the cooling
fins on the upper side of the calibrator. Instead of the fins, the TP 38 600 / TP 38 600 E calibrator features a
grid for protection against the hot areas of the heating block.

4 Structure of the temperature calibrator TP 38 … / TP 38 … E
Subject to technical changes 7 Ba_TP38-E_en 12/2014
SIKA Dr.Siebert & Kühn GmbH & Co.KG Struthweg 7–9 D-34260 Kaufungen [phone] [phone] [email protected] www.SIKA.net
Calibrator TP 38 165 / TP 38 165 E
The TP 38 165 / TP 38 165 E calibrators for temperature ranges from –30°C to 165 °C work with Peltier
elements. The calibrator must be able to cool to generate temperatures below ambient temperature. For this
purpose, the metal block is connected to a cooling element that is cooled by a strong fan.
For technical reasons, the max. attainable temperature is limited to 165 °C. The min. attainable temperature is
– 30 °C at an ambient temperature of 23 °C.
Calibrator TP 38 650 / TP 38 650 E
The TP 38 650 / TP 38 650 E calibrators for temperature ranges from ambient temperature up to 650 °C work
with resistance heating elements. Depending on the upper limit temperature, different block materials are
used. Brass, bronze or scale-resistant steels.
4.2 The control panel
Fig. 1: Control panel
The control panel with the keyboard, the pilot lamp and the graphic display are on the front of the calibrator.
Description:
A Standby/On pilot lamp G Block of 14 keys for entering numbers
with sign
B Standby/On switch H Status bar of the display
C Cursor and Select keys for marking
and selecting I Main display area
D Back key for going back one step J Info line of the display
E Enter key for entering data K Control / Calibrate switch
F Clear keys for deleting data

4 Structure of the temperature calibrator TP 38 … / TP 38 … E
Subject to technical changes 8 Ba_TP38-E_en 12/2014
SIKA Dr.Siebert & Kühn GmbH & Co.KG Struthweg 7–9 D-34260 Kaufungen [phone] [phone] [email protected] www.SIKA.net
4.3 The metal calibration block
Both the dry well calibrators are fitted with an electronic temperature-controlled metal block. This metal block
is fitted with a 28 mm x 150 mm bore for holding the adapter insert. It contains one or several bores with
different diameters for thermically coupling thermometers of various thicknesses to the metal block. Good
thermal coupling between the block, the adapter insert and the thermometer is very important for keeping
measuring inaccuracies during calibration to a minimum. The metal block is thermically insulated against the
housing wall.
4.4 Integrated measuring instrument
Resistance thermometers, thermo elements and temperature transmitters must be operated with a measuring
instrument during calibration that measures the output signals such as thermo-voltages, resistance values and
standard 0(4)-20 mA signals and displays them in the form of temperature values. This temperature can then
be compared to the set calibrator temperature.
It is far more convenient to use our temperature calibrators with integrated measuring instrument. It performs
the tasks of an external measuring instrument and displays the temperature directly on the calibrator display.
Our precision temperature calibrators are available in two different configurations:
without integrated measuring instrument (TP 38… E)
with integrated measuring instrument (TP 38…)
Any TP 38… E can be upgraded with an integrated measuring instrument at our company at any time.
The integrated measuring instrument also permits parallel connection of a probe and an external reference
resistance thermometer. If the probe is too short for the block bore, for example, it is not in the homogenous
temperature range and cannot be calibrated. For this reason, an external reference is connected to the
integrated measuring instrument and parallely inserted into the block bore in the same depth. The temperature
of the reference, of the probe and the difference of the two are displayed.
The following probes can be connected to the integrated measuring instrument:
Resistance thermometers (RTD): Pt100, Pt 500 und Pt 1000 in 2, 3 or 4 conductor circuits
Thermocouples (TC) of the K, J, N, E, R, T, B, S, L and U types
0(4)-20 mA power signals from temperature transmitters (mA), with and without supply voltage
Temperature switches (switches) with "normally open" and "normally closed" contacts.
In addition to a thermocouple connector (refer to the circuit diagram), 4 mm sockets for plugs, cable lugs and
blank wires are available for connecting the probe.
The external resistance thermometer is connected using a 7-pole connector.

4 Structure of the temperature calibrator TP 38 … / TP 38 … E
Subject to technical changes 9 Ba_TP38-E_en 12/2014
SIKA Dr.Siebert & Kühn GmbH & Co.KG Struthweg 7–9 D-34260 Kaufungen [phone] [phone] [email protected] www.SIKA.net
Circuit of the integrated measuring instrument
For information on connecting your probe, please refer to the circuit diagram on the
left.
The corresponding settings for the type of probe and the integrated measuring
instrument are described in chapter 5.
The "ext. Ref." connector is used for connecting an external reference. It influences
other displays. The connection and thus display of an external reference is
automatically detected by the calibrator, i.e. the calibrator provides values of the
external reference.
RTD = resistance thermometers TC = termocouples
mA = mA transmitter switch = temperature switches
4.5 PC connection, power switch and type label
The calibrator is equipped with a serial interface of the RS-232-C type. This interface operates in two
directions, i.e. data are sent to a superordinate computer for further processing and data are received from a
superordinate computer for programming the calibrator.
Note: The interfaces of the devices to be connected must comply with IEC 60950.
Interface settings:
9600 Baud, 8 data bits, parity none, 1 stop bit
Connection to a PC
The calibrator is connected to a PC via a commercially available cable, included in the scope of delivery.
Calibrator PC - HOST
Pin 2) RX
Pin 3) TX
Pin 5) GND

4 Structure of the temperature calibrator TP 38 … / TP 38 … E
Subject to technical changes 10 Ba_TP38-E_en 12/2014
SIKA Dr.Siebert & Kühn GmbH & Co.KG Struthweg 7–9 D-34260 Kaufungen [phone] [phone] [email protected] www.SIKA.net
Power switch
The power switch (I/O toggle switch) on the rear of the calibrator is used to switch on the power supply of the
calibrator.
Switch setting "I“ switches the power supply on, switch setting "0“ switches the power
supply off.
Directly to the right of the power switch is a warning symbol.
It means: "Caution, general point of hazard“
Two examples for type label
4.6 Components of the calibrator bottom
The power socket with integrated safety fuses are arranged in the bottom of the calibrator. For this reason, a
power cable with an angled inlet connector for non-heating apparatus must be used.
4.7 Warnings used
Since there are high temperatures on the top of the calibrator directly in front of the block bore, the following
warning has been attached to this area:
Directly to the right of the power switch is the warning symbol displayed.
It means: "Caution, general point of hazard“. It advises you to read the corresponding chapters
(e.g. chapter 2, chapter 4) of the operating instructions.

4 Structure of the temperature calibrator TP 38 … / TP 38 … E
Subject to technical changes 11 Ba_TP38-E_en 12/2014
SIKA Dr.Siebert & Kühn GmbH & Co.KG Struthweg 7–9 D-34260 Kaufungen [phone] [phone] [email protected] www.SIKA.net
4.8 Accessories (included in the scope of delivery)
Power cable
A power cable with a 90 ° angled inlet connector for non-heating apparatuses for the power supply is included
with every calibrator«TITLE». Depending on the country the calibrator is delivered to, the power cable is fitted
with the locally used power plug.
Important!
Operate the TP 38… / TP 38… E exclusively with the power cable provided. The power cable connector is on
the bottom of the calibrator, i.e. when using a different type of cable, the calibrator may topple over.
Insert removal tool
An insert removal tool for simple and easy removal and insertion of the adapter insert into the calibrator block
is included in the standard set of accessories of every temperature calibrator«TITLE» of the TP 38… / TP 38…
E series.
Test certificate
Each calibrator has been tested ex works and is delivered with a test certificate.
4.9 Optional Accessories
Adaptor inserts
Each calibrator features a block bore with a diameter of 28 mm. Adaptor inserts must be used to guarantee
that the heat transfer between the thermometer to be checked and the metal block is as small as possible. If
the diameters of your thermometers differ, please order the desired adaptor insert with an internal bore
matching the diameter of your thermometer plus 0.5 mm. Inserts have outside dimensions of 28 mm in Ø x a
length of 150 mm and are made of brass (scale-free special alloy).
Special adaptor inserts
Special adaptor inserts can be customized in various designs. Inserts with multiple bores are also possible.
Limits are placed only by the mechanical machinability of the insert blank.
If you require multiple inserts, please take the following into consideration:
if possible, the bores should be arranged on a pitch circle to ensure uniform temperature distribution
for product engineering reasons, there must be a minimum distance between the bores and to the edge of
the insert. As a rule, this distance should not be less than 2 mm.
the bore diameter should be larger than the thermometer to be tested by at least 0.5 mm.
Transport case
We offer a robust transport case for your calibrator as an option. We recommend the use of a transport case, if
you frequently use the calibrator for on-site calibrations and thus need to transport it often. The case does not
only protect your calibrator against environmental influences such as dust, dirt and humidity but also against
mechanical damage that may occur due to impacts and vibrations.
Data cable
A data cable for connecting the calibrator to the RS 232 interface can be ordered from SIKA.

4 Structure of the temperature calibrator TP 38 … / TP 38 … E
Subject to technical changes 12 Ba_TP38-E_en 12/2014
SIKA Dr.Siebert & Kühn GmbH & Co.KG Struthweg 7–9 D-34260 Kaufungen [phone] [phone] [email protected] www.SIKA.net
Software
Program package for TP 38… E
Remote control of the calibrator functions via PC
Setting of the display values (°C / °F / K, variance, min. and max. value, filter)
Programmable ramps, level and temperature cycle functions
System settings via PC (language, date, time, brightness, contrast, alarm)
Editing of the test data in graphical and ASCII code
Program package for TP 38…
Remote control of the calibrator functions via PC
Setting of the display values (°C / °F / K, variance, min. and max. value, filter)
Programmable ramps, level and temperature cycle functions
System settings via PC (language, date, time, brightness, contrast, alarm)
Editing of the test data in graphical and ASCII code
Processing of probe data
RTD Pt100/Pt500/Pt1000
TC K/J/N/E/R/T/B/S/L/U
Current0(4)...20 mA
Temperature switch
programming and interpretation of step- and logger function
automatic creation of certificates incl. the integration of customer data
Serial test (e.g. for incoming goods inspection)
External calibration reference
Hand sensor appropriate for TP 38… with internal measuring instrument
Customer-specific linearization through EEPROM
Measuring range -50...550 °C
Tolerances +/-0.05 °C in the range of –30.00 °C...199.99 °C
+/-0.3 °C in the range of 200.00 °C...550.00 °C
Corrosion and acid resistant stainless steel 1.4571
Dimensions: L = 300 mm, D = 3 mm
Robust plastic hand grip (150 mm)
Electric connection via PVC cable (1 m) with 7-pin SIKA connector
Other configurations available on demand.
4.10 DKD Calibration Certificate
The DKD calibration certificate gives you the certainty that the calibration results are based on national
standards and the measuring deviations do not exceed the error limits specified.
DKD calibrations are optionally available for all temperature calibrators.
The calibration certificate of a DKD calibration laboratory confirms that the dry well calibrator fulfills the high
demands placed on the calibration capabilities of a calibrator of that kind. These requirements are defined in
directive DKD-R 5-4.
To check the calibration of dry well calibrators, we recommend periodical measurements using a calibrated
thermometer. Without verification measurements using a calibrated thermometer, we strongly recommend
annual recalibration of the dry well calibrator.

5 Commissioning of the calibrator TP 38 … / TP 38 … E
Subject to technical changes 13 Ba_TP38-E_en 12/2014
SIKA Dr.Siebert & Kühn GmbH & Co.KG Struthweg 7–9 D-34260 Kaufungen [phone] [phone] [email protected] www.SIKA.net
5 Commissioning of the calibrator
5.1 Intended use
The introduction of foreign substances such as oil or thermal conduction paste with the aim of
enhancing the heat transfer to the probe can damage the calibrator and the adaptor insert.
In addition, there is a risk of injury due to abruptly evaporating fluids and hazardous gases that may
form when fluids evaporate.
Always ensure that the testing temperature is not too high for the probe. Otherwise, the probe may be
destroyed.
Remove all highly combustible media from the vicinity of the calibrator and ensure that the calibrator
cannot come into contact with easily inflammable or explosive media.
5.2 Checks and activities prior to commissioning
Prior to commissioning, the calibrators must be moved to their standard upright operating position. When
installing the calibrator, make sure that the fan on the bottom can circulate a sufficient rate of air. Do not use
soft, resilient surfaces.
Proceed as follows:
Check the technical data specified on the type label
Always place TP 38… / TP 38… E in an upright position. Otherwise uniform temperature distribution in
the block cannot be ensured.
Do not use any filling media.
Additionally observe the following:
The calibrator must be connected to a power circuit with minimum risk of a power failure, since it will no
longer be possible to supply cooling air in the case of a power failure
All the bores of the adaptor insert must be clean and free of damage and foreign matters
The probe, the adaptor insert and the bore of the heating block must exactly match.
Keep the heat transition resistance as low as possible by using adaptor inserts with test bores, the
inside diameters of which is approx. 0.5 mm larger than the diameter of the probe.
Setup and connection
First fold back the hand grips of the calibrator. For this purpose, pull off the two lateral fasteners of the
hand grip to the side and fold the hand grip back towards the rear of the calibrator.
Plug the power cable supplied into the mains socket on the bottom of the calibrator and plug the power
connector into the mains socket.
Caution: Since the housing of the calibrator is made of metal, only power cables with ground wire may be
used. Use the power cable supplied.
Set up the calibrator such that the power switch (switch for power supply) is easily accessible and can be
actuated without any problems.
Set up the calibrator such that the fan on the bottom of the calibrator has sufficient free space to be able to
circulate a sufficient cooling air rate. Insufficient venting may cause damage leading to the destruction of the
«TITLE»calibrator.
Connect the calibrator to a power circuit with minimum risk of a power failure, since it will no longer be
possible to supply cooling air in the case of a power failure
Switch on the calibrator at the power switch.

5 Commissioning of the calibrator TP 38 … / TP 38 … E
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SIKA Dr.Siebert & Kühn GmbH & Co.KG Struthweg 7–9 D-34260 Kaufungen [phone] [phone] [email protected] www.SIKA.net
5.3 Start procedure with TP 38 650 / TP 38 650 E
If the calibrator is not used for an extended period of time, humidity may penetrate into the heating elements
due to the material used (magnesium oxide).
After transporting or storing the calibrator in a humid environment, the heating elements must thus be heated
slowly when starting the calibrator. During the drying ,he calibrator will not have attained the isolation voltage
required for protection class I.
The setpoint startup value is Tanf = 120 °C at a dwell time of th= 15 min.

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6 Operation of the calibrator
6.1 Description of the controls
6.1.1 Description of the display
Fig. 2: Display of calibration mode
Info line
In the info line, the current mode is always displayed on the left-hand side. In the example above, this is the
calibration of an RTD resistance thermometer. The current temperature gradient is displayed on the right-hand
side.
KPM stands for Kelvin per Minute.
All practicable menu points are listed in the table. The points which are bold are available to all calibrator types
(TP38… E and TP 38…). The others are only possible by calibrators with an integrated measuring instrument
(TP 38…).
Display on the left-hand
side of the info line Description
Control Operation in control mode
Calibrate
Calibr RTD
Calibr TC
Calibr mA
Operation in calibrate mode
- without probe type selected
- with the selected resistance thermometer (RTD) as the probe
- with the selected thermocouple (TC) as the probe
- with the selected mA transmitter (mA) as the probe
Switch test Operation in switch test mode
- with the selected switch as the probe
Step test
Step RTD
Step TC
Step mA
Operation in step test mode
-without probe type selected
- with the selected resistance thermometer (RTD) as the probe
- with the selected thermocouple (TC) as the probe
- with the selected mA transmitter (mA) as the probe
Select
Call of the select mode
The Select mode offers the menu item with access to the submenus
Check RTD Select RTD
Check TC Select TC
Check mA Select mA
Check switch Select switch
DataLogger Select Logger

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Select RTD
Select TC
Select mA
Select Schalt
Select dislay
Select Logger
Select steps
Select system
Select info
Step test Select steps
Display value Select dislay
System value Select system
Info Select Info
Submenu for resistance thermometers (RTD)
Submenu for thermocouples (TC)
Submenu for mA transmitters (mA)
Submenu for switch test (switch)
Submenu for display values in the display area (display)
Submenu for DataLogger
Submenu for steps (steps)
Submenu for system settings (system)
Submenu for information windows (info)
Display Area
In this area, you can read all the important data such as the block and temperature set-point as well as define
settings required for the calibration in the submenus on the respective screen pages.
Status Bar
The status bar displays the statuses of the calibrator and the time. The calibrator may have one of five
different statuses:
Heating when the temperature in the block is increased
Cooling when the block is cooled
Stable when the temperature in the block has set to a constant value
(for stability, refer to the technical data)
Temp-alarm when an alarm value set in the select system submenu has been exceeded
The alarm is signaled only, the control unit will continue operating.
when a switch-off value set in the select system submenu has been exceeded
The alarm is signaled. The control unit is switched off and the program
automatically branches back to the Control mode. Once the value has dropped
below the switch-off value, the control unit can be reactivated via the Control key.
Control Off when the controller of the calibrator was manually switched off via the Control
key. The controller cannot be switched off manually while level and switch tests
are being performed.
6.1.2 Description of the Cursor Keys / Select Key
The cursor keys are used to select options on the display, e.g. a probe in Select
mode. The selected value will be displayed in blue letters on a white field.
The Select key is used to confirm your selection.
Using the Select key, you can call the Select mode including the associated
submenus even from the standard calibration mode. (please also refer to chapter
6.1.4)

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6.1.3 Description of the Block of 14 Keys and the Back Key
You can enter all the required temperature values and percentages via the block of 14 keys.
In Control and Calibration mode e.g., you can edit the setpoint value. In Select mode, several settings can be
edited on one screen page. For this purpose, select the desired value using the cursor keys. The line will then
be displayed in blue letters on a white field. Now enter the numeric values including sign and decimal places.
Always confirm by pressing the Enter key. Use the Clear key to delete an entry.
The Back key saves the selected and entered values and settings. The save process is briefly displayed in the
info line with "Speichern" (Saving) and takes you back one operational step.
6.1.4 Diagram of the Operating Structure
6.2 Starting the Calibrator
Preliminary Note
The setting range depends on the calibrator and specifies the range, in which the controller can be set. The
actual operating range may differ from the setting range, since the operating range can be restricted through a
switch-off value set in the select system submenu. The firmware version number may change after a
firmware update.
The individual serial number of the calibrators is specified in the Info menu and additionally on the type label
on the rear of the calibrator.

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Switching On the Calibrator
Switch on the power switch.
"Loading ...“ will be displayed. Then the start data will be displayed in the info window.
TP 38 165 / TP 38 165 E (Setting range ... -35 °C ... 165 °C)
TP 38 650 / TP 38 650 E (Setting range ... 40 °C ... 650 °C)
Below this, the firmware version, the date of the last calibration and the internally stored serial number are
displayed.
Displayed for 5 s only
Fig. 3: Info windows with start datas
6.3 Description of the control mode
After approx. 5 s, the calibrator will automatically switch to Control mode and display the current block
temperature. The temperature set-point is displayed below it. The two displays are permanently visible.
Fig. 4: Display in control mode
In addition, five other displays may appear depending on the equipment and selection. The figure above
shows the maximum scope of displays.
ext. Ref displays the value of the external reference.
block temp 399.80°C
set temp 400.00°C
ext.ref. 350.80°C
PT100-3 350.55°C
probe PT100-3
Min. value 50.00°C
Max. value 500.78°C
control OFF 13:24:56
control

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PT100-3 (probe) An internal measuring instrument is available and switched on and a probe has been
selected. (in this example: Pt 100 in 3 conductor circuit)
Min/Max value The display of the minimum and maximum value is enabled. The min. and max.
values can be reset at any time by pressing the ENTER key.
In Control mode, a control response time (on the right-hand side of the info line)
cannot be specified (refer to Calibration mode).
When the calibrator has been switched to control mode, this is displayed in the status bar. "Control off“ will be
displayed.
In this mode, you can define a new setpoint value using the block of 14 keys.
Confirm your entry by pressing the Enter key, the controller will save the value.
Press the Control key once to start the controller. Calibration mode will be called.

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6.4 Entering setpoint values and description of the calibration mode
The calibration mode will be displayed as soon as you have pressed the control key.
Calibration mode provides all the required displays for you to enter the setpoint value.
Define a new setpoint value using the block of 14 keys. Confirm your entry using the Enter key. The
controller will save the value. The calibrator accepts only setpoint values within its setting range.
Description of the calibration mode
Fig. 5 below shows the maximum possible displays that are visible depending on the equipment and the
selected function.
Info Line
The following displays are possible in the info line:
Calibrate There is no internal measuring instrument. A probe was not selected
If a internal measuring instrument is exist, the info line displayed „Calibr“ and behind if a resistance
thermometer (RTD), a thermocouple (TC) or a current output (mA) is connected.
Calibr RTD A resistance thermometer was connected as probe and selected.
Calibr TC A thermocouple was connected as probe and selected.
Calibr mA A sensor with current output was connected as probe and selected.
The temperature gradient is displayed on the right-hand side of the info line.
Display Area
The first line displays the current block temperature Block temp of the calibrator, the second line displays the
temperature set-point (see fig. 5b). Irrespective of the equipment of your calibrator, the two displays are
always visible. In the set temp (temperature set-point) line you have to enter the desired temperature set-point
as described above.
If the calibrator is equipped with an internal measuring instrument there are additional displays possible like
in figure 5a:
During the connection ext. ref. this appears in line 1, then the block temperature is represented small in line 3.
In line 4 the type of the test specimen and its temperature can be registered. The selection of the test
specimen you can take at the select mode (cap.6.5).
Fig. 5a: Display with external reference Fig. 5b: Display without external reference