WIKA CTD9350 User manual

Operating instructions
Betriebsanleitung
DE
EN
Dry-well temperature calibrator,
model CTD9350
Multi-function calibrator,
model CTM9350
Dry-well temperature calibrator and multi-function calibrator
Models CTD9350, CTM9350
Temperatur-Blockkalibrator und Multifunktionskalibrator,
Typen CTD9350, CTM9350

2WIKA operating instructions, models CTD9350 and CTM9350
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EN Operating instructions models CTD9350, CTM9350 Page 3 - 74
Betriebsanleitung Typen CTD9350, CTM9350 Seite 75 - 146
© 02/2023 WIKA Alexander Wiegand SE & Co. KG
All rights reserved. / Alle Rechte vorbehalten.
WIKA®is a registered trademark in various countries.
WIKA®ist eine geschützte Marke in verschiedenen Ländern.
Prior to starting any work, read the operating instructions!
Keep for later use!
Vor Beginn aller Arbeiten Betriebsanleitung lesen!
Zum späteren Gebrauch aufbewahren!

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Contents
Contents
1. General information 6
2. Short overview 7
2.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.3 Scope of delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3. Safety 9
3.1 Explanation of symbols . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.2 Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.3 Improper use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.4 Responsibility of the operator . . . . . . . . . . . . . . . . . . . . . . . . 11
3.5 Personnel qualification . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.6 Personal protective equipment . . . . . . . . . . . . . . . . . . . . . . . . 12
3.7 Labelling, safety marks . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4. Design and function 14
4.1 Overview of the different instrument models . . . . . . . . . . . . . . . . . . . 14
4.2 Isometric views of the model CTD9350 temperature dry-well calibrators. . . . . . . . . . 15
4.3 Isometric views of the model CTM9350-165 multi-function calibrator . . . . . . . . . . . 16
4.4 Integrated measuring instrument . . . . . . . . . . . . . . . . . . . . . . . 17
4.5 Inserts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.6 Data interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.7 Special hazards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.8 Interface protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.9 Protective conductor monitoring . . . . . . . . . . . . . . . . . . . . . . . 18
4.10 User interface, touchscreen . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.10.1 Applications (apps) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.10.2 Symbols of the status bars . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.10.3 Further definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5. Transport, packaging and storage 22
5.1 Transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
5.2 Packaging and storage . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6. Commissioning, operation 23
6.1 Installation location and operating position. . . . . . . . . . . . . . . . . . . . 23
6.2 Voltage supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
6.3 Switching the instrument on/off. . . . . . . . . . . . . . . . . . . . . . . . 24
6.3.1 Switching on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
6.3.2 Warm-up time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
6.3.3 Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
6.3.4 Switching off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
6.4 Inserts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
6.4.1 Inserts for the temperature dry-well calibrator and multi-function calibrator . . . . . . . . . . 26
6.4.2 Insert for surface measurements (only CTM9350-165) . . . . . . . . . . . . . . . . . . . . . 27
6.4.3 Insert for infrared measurements (only CTM9350-165) . . . . . . . . . . . . . . . . . . . . . 28

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6.5 Multi-function calibrator, model CTM9350-165, as a calibration bath . . . . . . . . . . . 28
6.5.1 Probe basket and magnetic stirrer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
6.5.2 Drain pump and magnetic lifter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
6.5.3 Insert for liquids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
6.5.4 Transport cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
6.5.5 Operating cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
6.5.6 Calibration liquids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
6.6 Integrated measuring instrument . . . . . . . . . . . . . . . . . . . . . . . 32
6.7 Testing of temperature probes . . . . . . . . . . . . . . . . . . . . . . . . 33
7. Operating the calibrator or multi-function calibrator 34
7.1 Starting and stopping the instrument. . . . . . . . . . . . . . . . . . . . . . 34
7.2 Method of operation in calibration mode within individual operating modes. . . . . . . . . 34
7.3 Applications and their functions . . . . . . . . . . . . . . . . . . . . . . . 35
7.3.1 Home screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
7.3.2 Application [User Settings] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
7.3.3 Application [Settings] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
7.3.4 Application [Remote Control] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
7.3.5 Application [Information] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
7.3.6 Application [Calibration Without Certificate] . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
7.3.7 Application [Calibration With Certificate] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
7.3.8 Application [Calibration Setup] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
7.3.9 Application [View Calibration Results] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
8. Faults 60
9. Maintenance, cleaning and calibration 61
9.1 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
9.2 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
9.2.1 External cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
9.2.2 Cleaning fan guards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62
9.2.3 Cleaning calibrators with inserts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
9.2.4 Cleaning the micro calibration bath . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
9.3 Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
10. Dismounting, return and disposal 64
10.1 Dismounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
10.2 Return . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
10.3 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
11. Specifications 66
11.1 Specifications of the temperature dry-well calibrator . . . . . . . . . . . . . . . . 66
11.2 Specifications for integrated measuring instrument . . . . . . . . . . . . . . . . . 68
11.3 Approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
11.4 Certificates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
12. Accessories 70
12.1 Inserts for model CTD9350-165 . . . . . . . . . . . . . . . . . . . . . . . 70
12.2 Inserts for model CTD9350-700 . . . . . . . . . . . . . . . . . . . . . . . 71
12.3 Inserts for model CTD9350-700, Air Shield . . . . . . . . . . . . . . . . . . . 72

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Contents
13. Heating and cooling times 73
13.1 Temperature dry-well calibrator model CTD9350-165 . . . . . . . . . . . . . . . . 73
13.2 Temperature dry-well calibrator model CTD9350-700 . . . . . . . . . . . . . . . . 73
13.3 Multi-function calibrator model CTM9350-165 . . . . . . . . . . . . . . . . . . 74
13.3.1 As a temperature dry-well calibrator, infrared black body and surface temperature calibrator 74
13.3.2 As a micro calibration bath with water and silicone oil as calibration liquid . . . . . . . . . . . 74
Declarations of conformity can be found online at www.wika.com.

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1. General information
1. General information
■The model CTD9350 temperature dry-well calibrator or model CTM9350 multi-function calibrator described in the operating
instructions have 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 instrument.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 instrument’s range of use.
■The operating instructions are part of the product and must be kept in the immediate vicinity of the instrument and
readily accessible to skilled personnel at any time. Pass the operating instructions on to the next operator or owner of the
instrument.
■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 / DAkkS calibrations are carried out in accordance with international standards.
■Further information:
- Internet address: www.wika.de / www.wika.com
- Relevant data sheet: CT 41.39
CT 41.41
- Application consultant: Tel.: [phone]
[email protected]
Abbreviations, definitions
■Bullet
▶Instruction
1. ... x Follow the instruction step by step
⇒Result of an instruction
2-wire The two connection leads are used for the voltage supply.
The measuring signal also provides the supply current.
3-wire Two connection leads are used for the voltage supply.
One connection lead is used for the measuring signal.
4-wire Two connection leads are used for the voltage supply.
Two connection leads are used for the measuring signal.
RTD Resistance thermometer
TC Thermocouple

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2. Short overview
9
10
1
2
7
3
4
5
6
8
2.2 Description
The calibrator or multi-function calibrator is used for testing and calibrating various temperature measuring instruments and
temperature sensors and for measuring temperatures.
The instruments can be operated very easily via the touchscreen. Either predefined or user-defined test tasks are used, which
control the test procedure.
The portable instruments have a compact and robust design and can therefore be used directly on-site or in the laboratory.
The calibrators meet the requirements of EN 61326-1, class A (industrial area).
The calibrator or multi-function calibrator is a portable unit for service functions and also for industrial and laboratory tasks.
The WIKA instruments are intended for the calibration of thermometers, temperature switches/thermostats, resistance
thermometers and thermocouples.
2. Short overview
2.1 Overview
1Temperature dry well
2Steel case
3Mains connector socket with main switch and fuse
4Interfaces for PC and network
5Connection for external reference sensor
6Integrated measuring instrument
7Digital display/Display with touchscreen
8Carrying handle
9Calibrator ventilation
Air supply for tank or temperature dry well cooling
10 Calibrator ventilation
Air supply for case cooling

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2. Short overview
The appropriate instrument should be selected depending on the application; it should be connected correctly, tests carried
out and all components serviced.
The instrument is manufactured in different versions.The product label on the instrument indicates which the version is in each
individual instance.
The instruments are operated via a large, easy-to-read touchscreen.
2.3 Scope of delivery
The calibrators or multi-function calibrators are delivered in special protective packaging.The packaging must be set aside so
that the instrument can be sent safely back to the manufacturer for calibration or repair.
Scope of delivery (standard) Model CTD9350 Model CTM9350
3.1 inspection certificate per EN 10204
(Factory calibration)
X X
Power cord X X
Insert replacement tool X X
PC and network cable X X
Operating instructions X X
Protective packaging / Transport protection X X
USB stick with backup function X X
External reference probe - X
Probe basket - X
Infrared insert - X
Surface insert incl. replacement tool - X
Insert for liquids - X
Drain pump - X
Transport cover - X
Magnetic stirrer with magnetic lifter - X
Operating cover with 5 silicone plugs - X
Scope of delivery (optional) Model CTD9350 Model CTM9350
Transport case X X
Transition sleeve X X
External reference probe 1) X -
Network switch, barcode reader and WLAN router X X
Standard bored insert X X
Clamp connectors (4 x red, 4 x black and 1 x white) X X
2 x thermocouple adapters X X
2 x split ferrite cores X X
2 x ferrite keys X X
DAkkS calibration certificate
(Traceable and accredited in accordance with ISO/IEC 17025)
X X
1) For model CTD9350-700, an insert for Air Shield must be used for the external reference probe.
Cross-check scope of delivery with delivery note.

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3. Safety
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 electric power. Should the safety instructions not be observed, there is a risk of
serious or fatal injury.
WARNING!
... indicates a potentially dangerous situation that can result in burns, caused by hot surfaces or liquids, if not
avoided.
Information
... points out useful tips, recommendations and information for efficient and trouble-free operation.
3.2 Intended use
The temperature dry-well calibrators or multi-function calibrators may only be used for testing and calibrating suitable
temperature measuring instruments, temperature probes and for measuring temperatures.
▶The instruments are designed for indoor use only.
▶Do not use the instruments to heat or warm other parts or gases.
Only use the multi-function calibrator with suitable media. Permitted liquids are silicone oils, mineral oils and water, see also
chapter 6.5.6 “Calibration liquids”.
Hazardous media (flammable or explosive liquids or gases) must not be used.
The operational safety of the delivered instruments is only assured if the equipment is employed for its intended use
(verification of temperature sensors).The given limit values should never be exceeded (see chapter 11 “Specifications”).
These instruments are not approved for use in hazardous areas!
This is class A equipment for emissions and is intended for use in industrial environments. In other environments,
e.g. residential or commercial installations, it can interfere with other equipment under certain conditions. In such
circumstances the operator is expected to take the appropriate measures.
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.

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3. Safety
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). Connectors
and female connectors must be protected from contamination.
The manufacturer shall not be liable for claims of any type based on operation contrary to the intended use.
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.
▶Dry location and indoor use only.
▶Don’t connect lines to this equipment that are longer than 3 m [9.84 ft].
▶Do not use the calibrator or multi-function calibrator if it is damaged. Before using the instrument, check that
there is no visible damage.
▶Only use the accessories specified and authorised by WIKA.
▶Only ever use the power cord supplied.
CAUTION!
Damage to material
The use of heat transfer agents (oil, thermal compound or other agents) can lead to incorrect measurements and
damage to the calibrator.
The opening in the metal block of the calibrator is only suitable for operation with transition sleeves or calibration
inserts.
▶Never put heat transfer agents into the opening of the metal block.
▶Only micro calibration baths are suitable for operation with heat transfer agents.
Any use beyond or different to the intended use is considered as improper use.
Do not use this instrument in safety or emergency shutdown devices.
Voltage supply
■The instrument may only be installed and mounted by skilled personnel.
■Before replacing the fuse, cleaning, maintenance/servicing and in the event of danger, the calibrator or the multi-function
calibrator must be disconnected by unplugging the power cord from the mains socket.
■The mains socket must be freely accessible at all times!
Use of calibration liquids
WARNING!
Hazardous substances of calibration liquids
Improper handling can lead to poisoning or personal injury.
▶Wear the requisite protective equipment (see chapter 3.6 “Personal protective equipment”).
▶Observe the information in the material safety data sheet for the corresponding medium.
▶Before working with calibration liquids, read the material safety data sheet.
⇒The current material safety data sheet can be found at www.wika.com on the respective product page.
▶Before any transport with calibration liquids, allow the multi-function calibrator to cool down.The transport cover
is fitted with a safety valve. If the multi-function calibrator is closed when still warm, unacceptable pressures can
build up.To avoid overpressure, which can destroy the liquid bath, the safety valve is triggered at a pressure of
approx. 1.5 bar [21.76 psi]. This can lead to hot vapour escaping.

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3. Safety
Silicone oil as a calibration liquid
■Only use the silicone oil included within the scope of supply or specified in these operating instructions.
■When working with silicone oil, sufficient ventilation should be ensured in the room since it can give off pollutants.
■Since silicone oil is hygroscopic, after use, always close the calibration bath using the cover.
■Avoid getting silicone oil into the eyes.
⇒For first aid measures, see current material safety data sheet
Water as a calibration liquid
■Only use distilled water, otherwise the calibrator tank can become strongly calcified and soiled. Collect spilt liquids
immediately and dispose of them properly.
Mineral oil as a calibration liquid
■WIKA only ever delivers the multi-function calibrator with silicone oil.
■The use of mineral oil is possible, but is at your own responsibility. The risk shall pass to the customer and our warranty shall
expire.
■Observe the material safety data sheet for the mineral oil used.
The safety instructions for silicone oil also apply to mineral oil, in a figurative sense.The same applies to the
corresponding sections on silicone oil in these operating instructions.
WARNING!
Risk of burns!
Touching the hot metal block, the hot bath liquids or the test item can lead to acute burns.
▶Before transporting or touching the metal block or liquid bath, make sure that they have cooled down
sufficiently.
Collect spilt calibration liquids immediately and dispose of them properly.
3.4 Responsibility of the operator
The instrument is used in the industrial sector.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 suitable first-aid equipment is available and aid is provided whenever required.
■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.

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3. Safety
3.5 Personnel qualification
WARNING!
Risk of injury should qualification be insufficient!
Improper handling can result in considerable injury and damage to property.
The activities described in these operating instructions may only be carried out by skilled personnel who have the
qualifications described below.
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.
The requisite personal protective equipment must be provided by the operating company.
Wear safety goggles!
Protect eyes from flying particles and liquid splashes.
Wear protective gloves!
Protect hands from contact with hot surfaces and aggressive media.

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3. Safety
3.7 Labelling, safety marks
Product label (example)
The product label is fixed on the rear of the instrument.
1Instrument designation 5Auxiliary power
2Model designation 6Year of manufacture
3Temperature range 7Fuse
4Auxiliary power 8Serial no.
Explanation of symbols
Before mounting and commissioning the instrument, ensure you read the operating instructions!
Do not dispose of with household waste. Ensure a proper disposal in accordance with national regulations.
WIKA Alexander Wiegand SE & Co. KG 63911 Klingenberg Germany
T 10 A 250 V
Year of manufacture: 2022
Serial no.: 2201026
1100 VA50 Hz230 V~
1100 VA
60 Hz110 ... 115 V ~
Temperature range: t amb. ... +700 °C
Model: CTD9350-700-M
Dry-well temperature calibrator
9
1
2
3
4
5
6
7

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4. Design and function
Temperature dry-well calibrator model CTD9350-165
Temperature dry-well calibrator model CTD9350-165
Top view
Multi-function calibrator model CTM9350-165
Top view
Multi-function calibrator model CTM9350-165
4. Design and function
4.1 Overview of the different instrument models
Temperature dry-well calibrators
■CTD9350-165 (cooling and heating)
■CTD9350-700 (heating)
Multi-function calibrator
■CTM9350-165 (cooling and heating)
The calibrator or multi-function calibrator consists of a robust, black-anthracite painted steel case, with a carrying handle on
top.
Rear part of the case
The rear part of the case includes a metal block or liquid bath with an opening for the test item, accessible from the top.The
metal block/liquid bath incorporate the heating or cooling elements and the temperature probe for determining the reference
temperature.The metal block and the liquid bath are thermally insulated.
Front part of the case
On the front part of the case, there is a touchscreen for operating the calibrator or multi-function calibrator.
For the instruments with integrated measuring instrument, additional connections are located on the front of the instrument.

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4. Design and function
1
4
3
2
5
1
6
7
8
9
10
4.2 Isometric views of the model CTD9350 temperature dry-well calibrators
Front and top of the model CTD9350
On the top of the temperature dry-well calibrator, you will find
the block opening for inserting the inserts.
Block opening for inserts
CTD9350-165 Ø 28 x 150 mm [Ø 1.10 x 5.91 in]
CTD9350-700 Ø 29 x 150 mm [Ø 1.14 x 5.91 in]
The touchscreen, as well as the power connection and the
main switch, are located on the front of the calibrator.
In the equipment variant with integrated measuring
instrument, this is also located on the front of the instrument.
Rear of the instrument
On the rear of the instrument is the product label with the key
information about the model.
Temperature range
CTD9350-165 -35 ... +165 °C [-31 ... +329 °F]
CTD9350-700 Tamb ... 700 °C [Tamb ... 1.292 °F]
Mains voltage and frequency
CTD9350-165 AC 100 ... 240 V, 50/60 Hz
CTD9350-700 ■AC 110 ... 115 V, 60 Hz
■AC 230 V, 50 Hz
Furthermore, the individual serial number and the fuse rating
is given.
Underside of the instrument
Furthermore, depending on the model, there are one or two
air intakes located on the underside of the instrument.
These air intakes must not be obstructed in any way.
1Temperature dry well
2Connection for external reference sensor
3Integrated measuring instrument
4Digital display/Display with touchscreen
5Carrying handle
6Product label
7Calibrator ventilation
Air supply for temperature dry well cooling
8Calibrator ventilation
Air supply for case cooling
9Mains connector socket with main switch and fuse
10 Interfaces for PC and network

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4. Design and function
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Front and top of the model CTM9350-165
On the top of the multi-function calibrator, you will find the
block opening for inserting the different inserts or for filling.
Block opening for insert or filling
CTM9350-165 Ø 60 x 150 mm [Ø 2.36 x 5.91 in]
The touchscreen, as well as the power connection and the
main switch, are located on the front of the multi-function
calibrator.
In the equipment variant with integrated measuring
instrument, this is also located on the front of the instrument.
Rear of the instrument
On the rear of the instrument is the product label with the key
information about the model.
Temperature range
CTM9350-165 -35 ... +165 °C [-31 ... +329 °F]
Wide-range mains adapter and frequency
CTM9350-165 AC 100 ... 240 V, 50/60 Hz
Furthermore, the individual serial number and the fuse rating
is given.
Underside of the instrument
There are two air intakes located on the underside of the
instrument.
These air intakes must not be obstructed in any way.
1Temperature dry well/Liquid bath
2Connection for external reference sensor
3Integrated measuring instrument
4Digital display/Display with touchscreen
5Carrying handle
6Product label
7Calibrator ventilation
Air supply for tank or temperature dry well cooling
8Calibrator ventilation
Air supply for case cooling
9Mains connector socket with main switch and fuse
10 Interfaces for PC and network
4.3 Isometric views of the model CTM9350-165 multi-function calibrator

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4. Design and function
4.4 Integrated measuring instrument
Valid for calibrators with integrated measuring instrument:
The connections of the integrated measuring instrument at a glance:
Integrated measuring instrument
RTD A / B ■Resistance thermometer (type Pt100, Pt500,
Pt1000, Ni100, Ni 500, Ni1000)
■2-, 3- or 4-wire connection
■2 channels
TC A / B ■Thermocouples (type K, J, N, E, T R, S and B)
■2 channels
mA in ■Connection for current signal
■DC 0 ... 24 mA
■1 channel
V in ■Connection for voltage signals
■DC 0 ... 12 V
■1 channel
Switch test ■Female connector 1 and 2
■2 channels
+24V out ■Transmitter supply
■DC 24 V / max. 24 mA
■Grounding socket
ext. ref. ■Connection for external reference probe
4.5 Inserts
The function of the calibrator is determined by the insert. The required insert is inserted into the opening of the metal block or
tank.
This makes it easy to switch between dry well, infrared, surface and micro calibration bath functions.
Inserts Insert for surface
measurement Insert for infrared measurement Insert for liquids and probe basket for tank
For properties and uses,
see chapter 6.4.1 “Inserts
for the temperature dry-well
calibrator and multi-function
calibrator”.
For properties and uses,
see chapter 6.4.2 “Insert for
surface measurements (only
CTM9350-165)”.
For properties and uses,
see chapter 6.4.3 “Insert for
infrared measurements (only
CTM9350-165)”.
For properties and uses, see chapter
6.5 “Multi-function calibrator, model
CTM9350-165, as a calibration bath”.

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4. Design and function
4.6 Data interface
The instruments are equipped with an Ethernet interface. No further software is needed for communication.
With the aid of a computer, commands can be sent directly to the calibrator via the interface cable supplied.
Furthermore, 3 USB interfaces are available.These are used to export the measurement reports.
We can send you the corresponding interface protocol on request.
4.7 Special hazards
Thermal fuse
For safety, the calibrator or multi-function calibrator is fitted with an independently operating thermal fuse, which
cuts out the heater current supply if the temperature inside the case is too high. Once the metal block and the
liquid bath have cooled down, send in the calibrator or the micro calibration bath to WIKA for examination.
The calibrator or multi-function calibrator has been designed as a controller.
Since a malfunction of the calibrator or multi-function calibrator can cause personal injury or damage to property,
the equipment must be protected by additional electromechanical safeguards.
4.8 Interface protocol
The interface protocol is available on request for delivery as a specific additional document.
4.9 Protective conductor monitoring
The calibrator is fitted with a protective conductor monitor to keep a check on the base isolation of the heater.The
monitoring unit works independently of the normal controls and switches off the heating power supply as soon as
the calibrator no longer has a connection to the protective conductor system of the isolation.
Once reconnected to the protective conductor system, the monitoring unit automatically switches the power
supply back on to the heating circuit.

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4. Design and function
4.10 User interface, touchscreen
After the calibrator is switched on, after some time, the main screen appears:
4.10.1 Applications (apps)
Eight applications are available on the start page:
With the help of these applications (apps), various settings can be selected or programmed.
Pos. Application and meaning
1Calibration Without Certificate
Carrying out a quick calibration is possible.
Here, temperatures can be approached very easily and a test item can be tested.You can choose whether to use
the calibrator with or without an external reference.
For further information, see chapter 7.3.6 “Application [Calibration Without Certificate]”.
2Calibration With Certificate
Carrying out a calibration with a pre-defined test task.
A calibration certificate is created on the basis of the measuring results and the data previously entered for the test
item.
For further information, see chapter 7.3.7 “Application [Calibration With Certificate]”.
3Calibration Setup
Here, data for the calibration is stored that will later be used to create the calibration certificate.
For further information, see chapter 7.3.8 “Application [Calibration Setup]”.
4View Calibration Results
Display of all calibrations already performed and their measuring results.
Data export to a USB stick is possible
For further information, see chapter 7.3.9 “Application [View Calibration Results]”.
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4. Design and function
Pos. Application and meaning
5Information
Display of all current information about the calibrator
Listed are:
Instrument data ■Model and temperature range
■Serial no.
■Calibration date
■Software version
■Operating times
Database ■Temperature control service
■Sequence control service
■Data interface service
Communication ■IP Address
Current operating data ■Velocity of the ventilator
■Integrated measuring instrument
■External reference sensor
For further information, see chapter 7.3.5 “Application [Information]”.
6Remote Control
Via this app, remote control is activated or deactivated.
If remote control is activated, communication can be established with the help of a PC via the network cable.
For further information, see chapter 7.3.4 “Application [Remote Control]”.
7Settings
The following instrument settings can be made here.
■Time and date
■Setting of the IP address of the calibrator
■OPC Mode
■Setting the time for calculating the mean value of a test item
For further information, see chapter 7.3.3 “Application [Settings]”.
8User Settings
The following user settings can be made here.
■User-defined data (is indicated on the test certificate)
■Language
■Unit
For further information, see chapter 7.3.2 “Application [User Settings]”.
4.10.2 Symbols of the status bars
There are two status bars.
The first status bar is located at the bottom of the screen.This shows the current instrument status.
The second status bar only becomes visible after an app has been called up and executed.This is located at the top edge of
the screen.
Lower status bar
Pos. Application and meaning
9System time
Display of the current time and date
For further information, see chapter 7.3.3 “Application [Settings]”.