WIKA CTR3000 User manual

Multi-functional precision thermometer, model CTR3000
GB
Multi-functional precision thermometer, model CTR3000
Operating instructions

2 WIKA Operating Instruction, model CTR3000
14191761.04 01/2018 EN
GB
Multi-functional precision thermometer, model CTR3000
Page
1 - 67
Further languages can be found at www.wika.com.
© 2018 WIKA Alexander Wiegand SE & Co. KG
All rights reserved.
WIKA® is a registered trademark in various countries.
Prior to starting any work, read the operating instructions!
Keep for later use!

Contents
WIKA Operating Instruction, model CTR3000 3
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1. General Information ............................................................................................................. 6
1.1 Software license agreement............................................................................................. 6
2. Short overview..................................................................................................................... 7
2.1 Overview ............................................................................................................................ 7
2.2 Description ........................................................................................................................ 7
2.3 Scope of delivery............................................................................................................... 7
3. Safety .................................................................................................................................. 8
3.1 Explanation of symbols .................................................................................................... 8
3.2 Intended use...................................................................................................................... 8
3.3 Improper use.................................................................................................................... 10
3.4 Responsibility of the operator........................................................................................ 10
3.5 Personnel qualification................................................................................................... 10
3.6 Personal protective equipment ...................................................................................... 11
3.7 Labelling, safety marks................................................................................................... 11
4. Design and Function.......................................................................................................... 12
4.1 Overview .......................................................................................................................... 12
4.2 Principles of measurement............................................................................................. 13
4.2.1 PRT measurement............................................................................................................. 13
4.2.2 Thermocouple measurement ............................................................................................. 13
4.2.3 Thermocouple reference junction compensation ................................................................ 13
4.3 Front panel....................................................................................................................... 14
4.3.1 Overview ........................................................................................................................... 14
4.3.2 Warm up time .................................................................................................................... 14
4.3.3 Main screen; Home............................................................................................................ 15
4.3.4 Thermometer inputs........................................................................................................... 16
4.3.4.1 Resistance thermometers ................................................................................. 16
4.3.4.2 Thermocouples................................................................................................. 17
4.4 Application selection and parameter inputs ................................................................. 17
4.5 Rear panel........................................................................................................................ 18
4.5.1 USB interface (standard).................................................................................................... 18
4.5.2 Ethernet interface .............................................................................................................. 18
4.5.3 RS232 Communication interface card................................................................................ 18
4.5.4 Power input........................................................................................................................ 18
4.5.5 Input channel expansion port (CTS Expansion, TC Expansion).......................................... 19
4.5.6 Name plate ........................................................................................................................ 19

Contents
4 WIKA Operating Instruction, model CTR3000
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4.6 Applications and their functions.................................................................................... 20
4.6.1 Application <<Home>> ...................................................................................................... 20
4.6.1.1 Status bar ......................................................................................................... 21
4.6.1.2 Channel selection ............................................................................................. 21
4.6.1.3 Freeze function ................................................................................................. 22
4.6.1.4 Unit selection .................................................................................................... 22
4.6.1.5 √2 current multiplier........................................................................................... 23
4.6.1.6 Probe selection ................................................................................................. 23
4.6.1.7 Resolution “+/-“function..................................................................................... 24
4.6.1.8 Peak “clear” function ......................................................................................... 24
4.6.1.9 Information bar.................................................................................................. 25
4.6.2 Application <<Settings>>................................................................................................... 26
4.6.2.1 Language.......................................................................................................... 26
4.6.2.2 Backlight-Off..................................................................................................... 26
4.6.2.3 Brightness......................................................................................................... 27
4.6.2.4 Time and Date .................................................................................................. 27
4.6.2.5 Sound............................................................................................................... 28
4.6.2.6 Data separator .................................................................................................. 28
4.6.2.7 Factory reset..................................................................................................... 28
4.6.2.8 Display –Average value.................................................................................... 29
4.6.2.9 Probes –Standard probe settings ..................................................................... 29
4.6.2.10 Probes –Alarm for probes................................................................................. 30
4.6.3 Application <<Probes>> .................................................................................................... 31
4.6.3.1 New probe <<Resistance thermometers>> ....................................................... 32
4.6.3.2 New probe <<thermocouples>>........................................................................ 35
4.6.3.3 New probe <<thermistors>>.............................................................................. 38
4.6.3.4 Configure existing probes ................................................................................. 40
4.6.3.5 SMART probes ................................................................................................. 41
4.6.4 Application <<Scan>>........................................................................................................ 42
4.6.4.1 Configuring a scan ............................................................................................ 42
4.6.4.2 View.................................................................................................................. 43
4.6.5 Application <<Logger>>..................................................................................................... 46
4.6.5.1 General............................................................................................................. 47
4.6.5.2 Log files ............................................................................................................ 48
4.6.6 Application <<Remote>> ................................................................................................... 50
4.6.7 Application <<Info>>.......................................................................................................... 51
4.6.8 Application <<Service>>.................................................................................................... 51
4.6.8.1 Firmware update............................................................................................... 51
4.6.8.2 Program SMART probe..................................................................................... 52
4.6.8.3 WIKA service level ............................................................................................ 52

Contents
WIKA Operating Instruction, model CTR3000 5
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4.7 Download function .......................................................................................................... 53
4.7.1 Log files ............................................................................................................................. 53
4.7.2 Screenshot ........................................................................................................................ 54
4.7.3 Measured Probes .............................................................................................................. 54
4.7.4 SMART probes.................................................................................................................. 55
4.7.5 All probes .......................................................................................................................... 55
4.7.6 Instrument details .............................................................................................................. 56
4.8 Calibration services ........................................................................................................ 56
4.9 Remote operation............................................................................................................ 56
4.10 Working with a CTS5000................................................................................................. 57
5. Transport, packaging and storage...................................................................................... 58
5.1 Transport ......................................................................................................................... 58
5.2 Packaging and storage ................................................................................................... 58
6. Commissioning, operation ................................................................................................. 59
7. Faults................................................................................................................................. 60
8. Maintenance, cleaning and servicing ................................................................................. 61
8.1 Maintenance .................................................................................................................... 61
8.2 Cleaning ........................................................................................................................... 61
8.3 Recalibration ................................................................................................................... 61
9. Dismounting, return and disposal....................................................................................... 62
9.1 Dismounting .................................................................................................................... 62
9.2 Return............................................................................................................................... 62
9.3 Disposal ........................................................................................................................... 63
10. Specifications .................................................................................................................... 64
11. Technical information......................................................................................................... 65
11.1 Measurement uncertainty and traceability.................................................................... 65
11.2 International temperature scale ..................................................................................... 65
11.3 Measurement................................................................................................................... 66
11.3.1 Thermocouple ................................................................................................................... 66
11.3.1.1 Introduction....................................................................................................... 66
11.3.1.2 Connection ....................................................................................................... 67
11.3.2 Resistance thermometer.................................................................................................... 67
11.3.2.1 Linearization functions for resistance thermometers .......................................... 67
Declarations of conformity can be found online at www.wika.com.

1. General Information
6 WIKA Operating Instruction, model CTR3000
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1. General Information
The instrument described in the operating instructions has been designed and manufactured
using state-of-the-art technology. All components are subject to stringent quality and
environmental criteria during production. Our management systems are certified to ISO 9001
and ISO 14001.
These operating instructions contain important information on handling the multi-functional
precision thermometer CTR3000. Working safely requires that all safety instructions and
work instructions are observed.
Observe the relevant local accident prevention regulations and general safety regulations for
the range of use of the multi-functional precision thermometer CTR3000.
The operating instructions are part of the instrument and must be kept in the immediate
vicinity of the multi-functional precision thermometer CTR3000 and readily accessible to
skilled personnel at any time.
Skilled personnel must have carefully read and understood the operating instructions, prior
to beginning any work.
The general terms and conditions, contained in the sales documentation, shall apply.
Subject to technical modifications.
Factory calibrations/DKD/DAkkS calibrations are carried out in accordance with international
standards.
Further information:
- Internet address: www.wika.de / www.wika.com
- Relevant data sheet: CT 60.15
- Application consultant: Tel.: [phone]
Fax: [phone]
[email protected]
Abbreviations, definitions
(S)PRT/RTD
Resistance thermometer
TC
Thermocouple
1.1 Software license agreement
The software included in this product contains copyrighted software that is licensed under the
GPL/LGPL. A copy of the license texts can be found at the end of this document. You may obtain
the complete Corresponding Source code from us for a period of three years after our last shipment
of this product and/or spare parts therefor, which will be no earlier than 01/01/2030, for a fee of 10€.
Please write an e-mail to CTServicete[email protected] and write „Corresponding Source for
CTR3000“ in the subject line. This offer is valid to anyone in receipt of this information.
WARNING! Installing modified versions of open source software components on the
product will result in the loss of warranty. Also support service and software updates will
be refused. Make sure to follow the safety precautions in the user manual. Improper access
to the instrument is likely to result in its damaging.

3. Safety
WIKA Operating Instruction, model CTR3000 7
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2. Short overview
2.1 Overview
Input for resistance thermometers or thermistors (5-DIN plug)
Input for thermocouples (standard miniature plug)
User interface, touchscreen
Front end USB: Upload and download function
Power on/off
2.2 Description
The model CTR3000 precision thermometer provides a complete measurement and control
interface for users wishing to make high-accuracy temperature measurements or calibrate
thermometers. It supports a wide range of thermometer types including 25 Ω SPRTs, 100 Ω PRTs,
thermistors and thermocouples.
The CTR3000 is a high-accuracy instrument designed for laboratory and industrial temperature
measurement and calibration applications.
2.3 Scope of delivery
■ Model CTR3000 multi-functional precision thermometer incl. power cord
■ Choice of model CTP5000/CTP9000 temperature probes, when ordered
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3. Safety
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3. Safety
3.1 Explanation of symbols
DANGER!
... indicates a directly dangerous situation resulting in serious injury or
death, if not avoided.
WARNING!
... indicates a potentially dangerous situation that can result in serious injury or death, if
not avoided.
CAUTION!
... indicates a potentially dangerous situation that can result in light injuries or damage
to property or the environment, if not avoided.
DANGER!
... identifies hazards caused by electrical power. Should the safety instructions not be
observed, there is a risk of serious or fatal injury.
Information
... points out useful tips, recommendations and information for efficient and
trouble -free operation.
3.2 Intended use
Application
The model CTR3000 precision thermometer provides a complete measurement and control
interface for users wishing to make high-accuracy temperature measurements or calibrate
thermometers. It supports a wide range of thermometer types including 25 Ω SPRTs, 100 Ω PRTs,
thermistors and thermocouples.
The CTR3000 is a high-accuracy instrument designed for laboratory and industrial temperature
measurement and calibration applications intended to be used in a basic electromagnetic
environment.
Functionality
The instrument will operate with all 3- and 4-wire (S)PRTs (25 Ω, 100 Ω) platinum resistance
thermometers as well as most standard international thermocouple types and NTC thermistors. The
following temperature measurement units are selectable: °C, °F, K. Base measuring units mV and Ω
are also displayed. The temperature values will be calculated through common conversion of the
base measurement.

3. Safety
WIKA Operating Instruction, model CTR3000 9
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Due to the wide range of this instrument it makes individual instruments needless and makes the
calibration cost-effective.
Features included:
■Dual capability for both thermocouple and resistance thermometer measurements
■ Input channels can be expanded up to 44
■ Large graphic touchscreen for temperature measurement values as well as configuration settings
and statistical results
■ Logger and log-data transfer to USB stick or communication interface
■Scan function with a live screen and graph
■Communication interfaces available for automated monitoring and calibration applications
This instrument is not permitted to be used in hazardous areas!
The instrument has been designed and built solely for the intended use described here, and may
only be used accordingly.
The technical specifications contained in these operating instructions must be observed. Improper
handling or operation of the instrument outside of its technical specifications requires the instrument
to be taken out of service immediately and inspected by an authorised WIKA service engineer.
Handle electronic precision measuring instruments with the required care (protect from humidity,
impacts, strong magnetic fields, static electricity and extreme temperatures, do not insert any
objects into the instrument or its openings). Plugs and sockets must be protected from
contamination.
The manufacturer shall not be liable for claims of any type based on operation contrary to the
intended use.
For indoor use only
Use only the delivered power supply STONTRONICS 3A-182WP06
Input of external Power supply: 100/240 V~, 50-60 Hz, 0.6 A
Don't connect lines to this equipment that are longer than 3 m.

3. Safety
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3.3 Improper use
WARNING!
Injuries through improper use
Improper use of the instrument can lead to hazardous situations and injuries.
▶ Refrain from unauthorised modifications to the instrument.
▶ Do not use the instrument within hazardous areas.
▶ Do not use the instrument with abrasive or viscous media.
Any use beyond or different to the intended use is considered as improper use.
3.4 Responsibility of the operator
The CTR3000 multifunctional precision thermometer is a high accuracy instrument designed for
laboratory and industrial temperature measurement and calibration applications.
The operator is therefore responsible for legal obligations regarding safety at work.
The safety instructions within these operating instructions, as well as the safety, accident prevention
and environmental protection regulations for the application area must be maintained.
The operator is obliged to maintain the product label in a legible condition.
To ensure safe working on the instrument, the operating company must ensure
■ that the operating personnel are regularly instructed in all topics regarding work safety, first aid
and environmental protection and know the operating instructions and in particular, the safety
instructions contained therein.
■ that the instrument is suitable for the particular application in accordance with its intended
use.
■ that personal protective equipment is available.
3.5 Personnel qualification
WARNING!
Risk of injury should qualification be insufficient
Improper handling can result in considerable injury and damage to equipment.
▶ The activities described in these operating instructions may only be
carried out by skilled personnel who have the qualificationsdescribed below.

3. Safety
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Skilled personnel
Skilled personnel, authorised by the operator, are understood to be personnel who, based on
their technical training, knowledge of measurement and control technology and on their
experience and knowledge of country-specific regulations, current standards and directives,
are capable of carrying out the work described and independently recognising potential
hazards.
Special operating conditions require further appropriate knowledge, e.g. of aggressive media.
3.6 Personal protective equipment
The personal protective equipment is designed to protect the skilled personnel from hazards that
could impair their safety or health during work. When carrying out the various tasks on and with
the instrument, the skilled personnel must wear personal protective equipment.
3.7 Labelling, safety marks
Product label
Symbols
Before mounting and commissioning the instrument, ensure you read the
operating instructions!
CE, Communauté Européenne
Instruments bearing this mark comply with the relevant European directives.
This marking on the instruments indicates that they must not be disposed of in
domestic waste. The disposal is carried out by return to the manufacturer or by the
corresponding municipal authorities (see EU directive 2012/19/EU).

4. Design and Function
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4. Design and Function
4.1 Overview
The CTR3000 is a high accuracy instrument designed for laboratory and industrial temperature
measurement and calibration applications.
Features include:
unique dual capability for both thermocouple and resistance thermometer
measurements;
number of input channel can be expanded from four to forty-four channels;
large graphic touchscreen for temperature measurement values as well as
configuration settings and statistical results;
advanced functions include differential measurement, programmable scanning
routines, programmable timer, data logging, statistical reporting;
USB and Ethernet (RS232 as an option) communication interfaces available for
automated monitoring and calibration applications;
The CTR3000 will operate with all 3 and 4-wire Pt100 (100 Ohm) platinum resistance thermometers
as well as most standard international thermocouple types. Temperature measurement units are
selectable by front panel operation; °C, °F, K. Base measurement units mV,Ωare also displayed.
Resistance accuracy is better than 2mΩequivalent to temperature measurement precision of
5mK for Pt100 thermometers.
Standard miniature sockets allow convenient connection for thermocouple inputs. Connection
sockets incorporate integral temperature compensation sensors making high accuracy
thermocouple measurement possible without the use of an external reference junction.

4. Design and Function
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4.2 Principles of measurement
4.2.1 PRT measurement
The CTR3000 measures the voltage (Vt) developed across the unknown sensor resistance (Rt) and
the voltage (Vs) across a stable internal reference resistance (Rs) connected in series and passing
the same current. The voltages are in proportion to the resistances so the thermometer resistance is
derived from: Rt = Rs x Vt / Vs This technique achieves immunity from slow moving time and
temperature drift in the electronics as it is not affected by voltage measurement gain variations or
current source fluctuations.
In the same way that AC resistance measurement eliminates thermal EMFs, switched DC achieves
a similar advantage. Switched DC works by reversing the current flow on alternate measurement
cycles and taking the average value, thereby cancelling any thermal EMF offsets from the
measurement.
For PRTs, the relationship between resistance and temperature varies slightly from one PRT to
another. Therefore, no matter how accurately the CTR3000 measures the PRT resistance, if the
relationship between resistance and temperature for a particular PRT is not known, accurate
temperature measurement is not possible.
The CTR3000 uses PRT calibration data to overcome this problem and calculates temperature from
temperature conversion functions stored in internal memory. This method enables the CTR3000
accurately to convert resistance to temperature, uniquely for each PRT used. It is very important
therefore that a PRT is used on the correct and properly configured input channel.
4.2.2 Thermocouple measurement
As well as the PRT resistance measurement facility the CTR3000 also functions as a precision
millivolt-meter. Designed for high accuracy measurement over the EMF voltage range of all
standard base and precious metal thermocouples, the CTR3000 achieves a basic voltage accuracy
of better than ±0,004 % + 2 μV over the full measurement range.
Thermocouple EMFs are converted to temperature using the EN60584 linearization functions.
The voltage input connection is specially designed to minimise the thermal gradient between the
terminals. This is particularly important when the internal reference junction compensation is used,
as any temperature difference at the connection junction will influence the measurement result.
4.2.3 Thermocouple reference junction compensation
The electrical connection between the thermocouple element and the CTR3000 input connector is
often referred to as the internal reference junction. All standard thermocouple reference functions
are defined relative to 0°C. To eliminate the physical need to reproduce this temperature inside the
CTR3000, the actual connection temperature is accurately measured with an internal PRT. This
temperature is converted to an equivalent EMF and added to the actual thermocouple voltage
measurement, thereby correcting for the connection temperature.
For high precision thermocouple measurement applications, i.e. calibration, an external reference
junction may be used. Using an external reference junction eliminates the uncertainties associated
with reference junction compensation.

4. Design and Function
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4.3 Front panel
4.3.1 Overview
Input for resistance thermometers or thermistors (5-DIN plug)
Input for thermocouples (standard miniature plug)
User interface, touchscreen
Front end USB: Upload and download function
Power on/off
4.3.2 Warm up time
It is recommended that the CTR3000 be warmed up before use to stabilize the environmentally
controlled components. This will ensure the best performance to the specifications. We recommend
a warm up time of 1 hour for full accuracy specifications.
1
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The internal cold junction compensation needs up to 2 hours for performing best.
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4. Design and Function
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4.3.3 Main screen; Home
1 Home application
2 General settings
3 Probe settings
4 Scan settings
5 Logger settings
6 Remote settings
7 Info display
8 Service settings
9 Unit; shortcut
10 Plus decimal place
11 Clear the peak values (min, max
measured since starting the
instrument)
12 Selected probe (standard or custom);
shortcut
13 Freeze the display; function key
14 Root 2 for sensor current PRT;
function key*
15 Current displaying of average, stability
and number of measurements
16 Peak displaying
17 Minus decimal place
18 Measured value in the base unit
according to probe, e.g. Ωfor Pt100
and mV for TC (displays °C, if the base
unit is selected using button 9)
19 Current measured value**
20 Selected channel; shortcut
21 Current application name
* Selecting √2 current multiplier
This option increases current through the probes by √2 (double-power), to determine any probe self-
heating. The best method of using this option is first to let the sensor reach a steady temperature
and note the value. It may take some time to stabilise. Note the value down.
Press the probe will increase the heating effect on the probe, and the value displayed will
represent the temperature due to the increased current. When the reading has stabilised, note the
temperature and calculate the temperature change.
** The selected input channel is interrogated before each measurement cycle, and when enabled,
SMART probes are identified by ‘SMART´ appearing as (S) beside the field 14. Open circuit
thermometer input channels will display nothing, the symbol “OL” displays that the measurement
value is out of range.

4. Design and Function
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4.3.4 Thermometer inputs
4.3.4.1 Resistance thermometers
The CTR3000 has two resistance thermometer and two thermocouple input channels, the input
sockets are located on the instruments front panel.
PRTs are connected via the 5 pin DIN sockets. You may connect 2, 3, or 4 wire PRTs as shown
below. Un-terminated platinum resistance thermometers may be connected through an optional
adapter box which is available as an accessory, (CTA5000-ADAP5-Z).
Options - with DIN plug or SMART plug
With the SMART connector on the probes, storing the
data is needed only once - in the connector! The
calibration data stays with the probe - permanently. It can
even be used on another instrument without any further
action.
The SMART connector saves time and reduces error. If there are existing calibrated or uncalibrated
probes, no problem, CTR3000 automatically registers if a probe is SMART or normal.

4. Design and Function
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4.3.4.2 Thermocouples
Thermocouples may be directly connected to the CTR3000 at the standard miniature sockets.
These sockets are within a temperature compensated isothermal block which eliminates the need
for an external ice point reference junction. However, the CTR3000 may also be used with an
external ice point reference for high precision measurement and calibration work.
4.4 Application selection and parameter inputs
The application selection area on the right side of the screen is the area where settings, probes,
logger, service and other apps can be chosen. As each App is chosen, related application
parameters will appear on the left of the screen along with the name of the application, and a
reduced size icon in the top title section. When a parameter is chosen, related selections, sliding
scales or a data entry key pad will appear in the input area on the right where the application
selection buttons were previously displayed. An example of each type of input is shown below. To
return to the App selection menu, simply press the Menu button below the input area.
Parameter inputs:
Related selections Data entry key pad Sliding scales
The selection will be presented on the right Confirm the values with
side of the function key for the input. Min/max values will be indicated below the blue screen
also QWERTZ keyboard available
Application titleInput title

4. Design and Function
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4.5 Rear panel
4.5.1 USB interface (standard)
The USB connector is fitted as standard. Communication requires the installation of the USB driver
on a PC.
The instrument can be controlled through simple SCIPI commands and can transmit SCIPI result-
data, which may be recorded using a simple terminal program.
Please refer to section 4.6.6 Application <<Remote>> for further details.
4.5.2 Ethernet interface
The Ethernet function allows the user to set the following by inputting a numeric value in each
separate field:
IP
Netmask
Gateway
Port
DHCP settings
Set the Ethernet communication parameters as described in Section 4.6.6 Application
<<Remote>>.
4.5.3 RS232 Communication interface card
Optional RS232 communication interface card slot. A blanking plate is fitted if there is no
communication interface card.
The CTR3000 may (optionally) be fitted with one of these interfaces. Operation is similar for all
communication interfaces. Please refer to section 4.6.6 Application <<Remote>> for further details.
4.5.4 Power input
Use only the delivered power cable!

4. Design and Function
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4.5.5 Input channel expansion port (CTS Expansion, TC Expansion)
Optional input channel expansion ports.
An expansion port connector is provided on the rear panel. The CTS expansion connector enables
up to four CTS5000 switchboxes to be used to expand the number of input connections to provide
up to 64 additional channels.
The universal switchbox CTS3000 will follow.
4.5.6 Name plate
Please see all details in chapter 3.7 Labelling, safety marks.

4. Design and Function
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4.6 Applications and their functions
4.6.1 Application <<Home>>
The Home App is the normal operation screen. This application is different from the others in that it
is not use to setup the configuration but is used to monitor the temperature measurement values
applied to this device.
1 Home application
2 General settings
3 Probe settings
4 Scan settings
5 Logger settings
6 Remote settings
7 Info display
8 Service settings
9 Unit; shortcut
10 Plus decimal place
11 Clear the peak values (min, max
measured since starting the
instrument)
12 Selected probe (standard or custom);
shortcut
13 Freeze the display; function key
14 Root 2 for sensor current PRT;
function key*
15 Current displaying of average, stability
and number of measurements
16 Peak displaying
17 Minus decimal place
18 Measured value in the base unit
according to probe, e.g. Ωfor Pt100
and mV for TC (displays °C, if the base
unit is selected using button 9)
19 Current measured value**
20 Selected channel; shortcut
22 Current application name