Wise T500 Series User manual
C-QIM-2731-T22_KR_Rev.2
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Electrical contact type temperature
gauge
T500, T700 Series
1
C-QIM-2731-T22_KR_Rev.2
Tel +82-2-300-2300
Fax +82-2-300-2400
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목차
1. General items ....................................................................................................................... 2
1.1 Introduction ......................................................................................................................... 2
1.2 Application .......................................................................................................................... 2
1.3 Product Characteristics ...................................................................................................... 2
1.4 Warranty ............................................................................................................................. 2
2. Warning ................................................................................................................................ 3
3. Main specs ........................................................................................................................... 4
3.1 Basic specs ........................................................................................................................ 4
4. Design .................................................................................................................................. 5
4.1 Structure ............................................................................................................................. 5
4.1.1 Bimetal type ..................................................................................................................... 5
4.1.2 Liquid filled type ............................................................................................................... 5
4.2 Principle of operation .......................................................................................................... 6
4.2.1 Bimetal type ..................................................................................................................... 6
4.2.2 liquid filled type ................................................................................................................ 7
5. Installation guide .................................................................................................................. 8
5.1 Pre-installation checks and precautions ............................................................................. 8
5.2 Matters of caution for installation ....................................................................................... 8
6. Wiring ................................................................................................................................. 10
6.1 Type and wiring due to wiring/contact point operation ................................................... 10
6.2 Setting method ................................................................................................................. 11
6.3 Cautions for wiring ............................................................................................................ 11
7. Repair and maintenance .................................................................................................... 12
8. Defect ................................................................................................................................. 12
9. User's duties....................................................................................................................... 13
10. Product return .................................................................................................................. 13
2
C-QIM-2731-T22_KR_Rev.2
Tel +82-2-300-2300
Fax +82-2-300-2400
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1. General items
1.1 Introduction
When using permanent securing methods, beware not to cause damage to the sensor.
This product is a contact thermometer combining an indicator with a contact-integrated temperature
switch.
A handle for adjusting the external setting value is provided on the window.
Before using the product, make sure to fully familiarize with the user manual that indicates how to
handle each part for the correct use.
1.2 Application
When it reaches the target temperature, the product can be used for On-Off signal-based process
control, alarm, or warning displays, etc.
A handle for adjusting the external setting value is provided on the window.
1.3 Product Characteristics
1) Contact thermometers are most suitable for cases where temperature indication and a switch
feature are needed.
2) A contact thermometer has individual measuring elements for indication and contact. This provides
accurate indication after switch assembly.
3) A contact thermometer has separate settings for the indication and setting markings, making
settings extremely easy.
4) A contact thermometer is simple to use, as the setpoint of the indicator can be set externally.
1.4 Warranty
If one causes damage to the product due to failures to comply with the user manual, or if one arbitrarily
remodels it, changes or repairs the product, the manufacturer will not be responsible for it, and the
product warranty period will expire.
3
C-QIM-2731-T22_KR_Rev.2
Tel +82-2-300-2300
Fax +82-2-300-2400
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2. Warning
Guide on handling for safe use
For the safe and correct use of the product, make sure to read the handling guide carefully before use.
Handling errors can cause device malfunctions, and it can lead to injury, accidents, etc.
Warning !
1) For the safety, only a worker with professional skills in electronics and electrical construction is
allowed to install the product.
2) Make sure to use the product within the rated input/output range set in the specifications.
3) Install the product in the environment of use indicated in the specifications.
4) Use the product in the permissible temperature range. If you use it outside the temperature range, it
can cause malfunctions or damage to the temperature switch, thus causing a degradation in the
safety nearby.
5) Do not apply excessive loads, vibrations, or impacts.
6) Do not let the sensor of the temperature meter to get bent. If the sensor gets bent, it can interfere
with the normal operation of the temperature meter, thus it can lead to temperature discrepancies.
7) Do not grab the head and turn it. Using a tool, hold the hexagonal screw parts to turn it.
8) O-ring can cause changes over time or characteristics change, and it can lead to a loss of
necessary functions for sealing, thus it requires periodic replacement, and in general, it is
recommended to replace it every 5 years.
9) When installing it in the site, make sure to follow the guide from the user manual.
10) Do not remodel the product itself or try to add a new function to it.
11) Do not use with corrosive fluids. Damage to the temperature measuring element may cause the
measuring fluid to be released, impacting the safety of the surrounding area.
4
C-QIM-2731-T22_KR_Rev.2
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3. Main specs
3.1 Basic specs
1) Indicator : 100mm
2) Case/Cover material : Stainless steel 304
3) Stem material : Stainless steel 304 / 316
4) Element : Bimetal / Bourdon tube
5) Capillary tube length: 2, 3, 5, 8, 10 Meter (Standard: 3 Meter) for other length, contact the company
6) Indicator accuracy : ±2.0 % Of full scale(Standard)
±1.0 % Of full scale(Optional)
Connection specification : 3/8", 1/2", 3/4” PT, NPT & PF
7) Temperature range : -25~65 ℃
8) Contact point quantity: 1 X SPST or 2 X SPST (Independent operation)
9) Contact point capacity
- Maximum voltage : 250 V AC
- Contact rating : AC 220 V, 0.25A
DC 100 V, 0.5A
5
C-QIM-2731-T22_KR_Rev.2
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4. Design
4.1 Structure
4.1.1 Bimetal type
4.1.2 Liquid filled type
No.
Description
1
Pointer
2
Cover
3
Terminal block
4
Scale plate
5
Micro switch
6
Gauge connection
7
Stem or Bulb
No.
Description
1
Gauge Connection
2
Stem or Bulb
3
Capillary ; Flexible Armored
4
Element ; Bourdon Tube
5
Movement
6
Bimetal
7
Pointer
6
C-QIM-2731-T22_KR_Rev.2
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4.2 Principle of operation
4.2.1 Bimetal type
A bimetal strip is a rod-shaped component where two thin sheets of metals with different thermal
expansion coefficients are joined by welding.
The difference between expansion of the coils depending on temperature is used to measure
temperature.
The degree to which the coil is twisted is converted into temperature.
Coil type thermometers are used for industrial temperature measurement.
7
C-QIM-2731-T22_KR_Rev.2
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4.2.2 liquid filled type
1) Temperature measurement
A filled system type thermometer is comprised of a ② sensor and indicator, and a ③ capillary tube
connecting the two. The inside is filled with a gas.
When the gas inside the sensor expands or contracts due to temperature change, the change in volume
is transmitted to a ④ Bourdon tube through a conduit.
The displacement of the tube is indicated as a temperature on the ⑤ display.
2) Temperature compensation
In a temperature measurement circuit, there can be an error between the temperature of the
measurement contact point and the actual temperature of the object being measured due to
temperature fluctuations around signal-transmitting lines or conduits or thermocouple converters.
The measured temperature is corrected to compensate for error due to changes in the surrounding
temperature.
There are two methods of compensation: In the first type of compensation, the temperature indicated by
the sensor is kept from changing regardless of fluctuations in the surrounding temperature.
In the second, methods are used to offset errors caused by fluctuations in the surrounding temperature.
A compensation wire uses the first method of compensation, maintaining the temperature indicated
regardless of surrounding temperature fluctuations.
8
C-QIM-2731-T22_KR_Rev.2
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Fax +82-2-300-2400
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5. Installation guide
5.1 Pre-installation checks and precautions
1) Handle with care during transport, as impact due to dropping may cause damage to performance.
2) Store in locations with low humidity and without dust or vibration. When stacking, weight should
be limited to prevent deformation of the packaging boxes. Boxes should be stacked to prevent
toppling over.
3) Open packaging carefully.
4) Check the product for damage and check process conditions before installing the product.
5.2 Matters of caution for installation
1) Temperature differentials are caused by the insertion depth of the sensor. For accurate temperature
measurement, the entire sensor of the thermometer must be inserted.
2) The product is sensitive to vibration and impact.
3) If the installation location is subject to vibration or mechanical impact, install the thermometer a safe
distance away.
4) Use of a thermowell is recommended for safe use and maintenance.
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C-QIM-2731-T22_KR_Rev.2
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5) Fasten securely using tools such as a spanner.
.
6) Holding and turning the thermometer case at installation may cause defects.
7) The bolt under the case must be loosened to adjust the direction of the indicator unit of the
thermometer. Once the bolt is loosened, the indicator can be adjusted to the desired angle.
8) Periodically inspect the installation location for moisture, vibration, dust, corrosive gas.
9) Avoid areas that might exceed the temperature ranges specified in this manual.
10) Make sure to protect from lightning or steam.
11) Avoid areas with direct sun light.
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