Wise T931 User manual

C-QIM-2731-T18_KR_Rev.1
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Indicating temperature switch
T931,T932

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Contents
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
4. Design ................................................................................................................................. 5
4.1 Structure............................................................................................................................. 5
4.2 Principle of operation.......................................................................................................... 6
4.3 Process connection............................................................................................................ 6
5. Installation guide ................................................................................................................. 7
6. Wiring .................................................................................................................................. 8
6.1 Type and wiring due to wiring/contact point operation...................................................... 8
6.2 Setting method ................................................................................................................. 10
6.3 Cautions for wiring............................................................................................................ 11
7. Repair and maintenance................................................................................................... 12
8. Defect................................................................................................................................ 12
9. User's duties...................................................................................................................... 13
10.Product return.................................................................................................................... 13

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1. General items
1.1 Introduction
The product is a temperature indicating switch contact point thermometer with a built-in indicator and
micro switch.
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.
1.3 Product characteristics
1) Contact point thermometers are best suited when temperature indication and switch functions are
required.
2) The contact point thermometer has separate measurement elements for indication and contact,
so the indication after switch assembly is also accurate.
3) The contact point thermometer has separate measurement elements for indication and contact,
so the indication after switch assembly is also accurate.
4) The contact thermometer is very easy to set as the indication scale and setting scale are
separately installed.
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.

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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) When opening the product case, make sure to turn off the power first. If you do wiring work when
current flows, there is danger of electrical shocks.

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3. Main specs
1) Model
-T931: Case compensation system SAMA class ⅢB
-T932: Full compensation system SAMA class ⅢA
2) Indicator: 150 mm / circular or non- indicate type
3) Case/Cover material: Silver gray finished aluminium
4) Stem material: Stainless steel 316
5) Stem filling fluid: Non mercury type
6) Capillary tube length: 직결 or 2, 3, 5, 8, 10 (Standard: 3 Meter) for other length, contact the
company
7) Indicator accuracy: ±2.0 % Of full scale
8) Reproducibility: ±2.0 % Of full scale
9) Contact point quantity: 1 X SPDT or 2 X SPDT (Independent operation)
10) Contact point capacity:
Rated voltage
Resistance load Inductive load
125V AC 15A 125V AC 15A
125V DC 0.5A
125V DC 0.05A

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4. Design
4.1 Structure
No. Description No. Description
1 Cover & Case 6 Micro switch
2 Window 7 Pointer
3 Terminal block 8 Stem or Bulb
4 Element 9 Switch pointer
5 Movement

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4.2 Principle of operation
As shown in the figure below, the temperature measuring element is connected to the sensor and the
capillary tube.
When the temperature changes, the gas in the sensing unit expands or contracts according to the
temperature, resulting in a change in pressure.
The displacement of the bourdon tube due to the pressure change is delivered through the rod to the
lever, thus opening and closing the micro switch.
4.3 Process connection
Direct mounting type Remote reading type
No. Description
1 Micro switch
2 Bourdon tube
3 Movement
4
Capillary tube /
Armored flexible tube
5 Stem or Bulb
6 Rod

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5. Installation guide
1) Before installation, make sure to check the product for damage and the process status.
2) Periodically inspect the installation location in terms of wetness, vibration, dust, corrosive gas, etc.
3) Avoid a location with temperatures exceeding the temperature range defined in the user manual.
4) Make sure to evacuate properly to prevent lightning or vapor.
5) Avoid a location with direct sunlight.
6) When installing it in the panel or wall using an assembly hole, make sure to use M5 nuts and
bolts, and in case of using mounting tools, make sure to firmly install it.
7) During installation, if there is a temperature difference between the locations of the sensor and
the capillary tube, it is not possible to measure the temperature accurately, therefore, make sure
to protect the capillary tube.
8) Fix screws (bolts and nuts) by using the designated torque and tools.

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6. Wiring
6.1Type and wiring due to wiring/contact point operation
1) High alarm
1:1 contact point type, If the temperature reaches the target
temperature, then turn on the circuit.
Cancel the circuit if the temperature drops below the target
temperature.
2) Low alarm
1:1 contact point type, If the temperature reaches the target
temperature, then turn on the circuit.
Cancel the circuit if the temperature drops over the target
temperature.
3) High & Low alarm
2:2 contact point type, It is a combination of high alarm and low alarm, and each operates
independently.

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4) High & Hihigh alarm
2:2 contact point type, It is a combination of high alarm and high alarm, and each operates
independently.
5) Low & Lolow alarm
2:2 contact point type, It is a combination of low alarm and low alarm, and each operates
independently.
.

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6.2 Setting method
Setting can be done by turning the external adjustment shaft with a screwdriver. Depending on the
contact method, set as follows.
1) High
Lights up when the rising temperature reaches the set point indicated by the set pointer. (On)
Adjust the set point by moving the set needle from high temperature to low temperature based on
the setting scale.
2) Low
Lights up when the falling temperature reaches the set point indicated by the set needle. (On)
Adjust the set point by moving the set needle from low temperature to high temperature based on
the setting scale.

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6.3 Cautions for wiring
1) Do not apply excessive force to the main body.
2) Use vinyl insulation cables, cap tier cables, etc., adequately for the load.
3) Make a firm connection to the terminal board using an M4 compression terminal.
4) Make sure to wire it after checking the contact point format on the wiring diagram.
5) Grounding
-Use the grounding terminal made of aluminum material for corrosion prevention.
-Use the grounding bolt made of 304SS materials.
-Use a spring washer to prevent looseness of the grounding terminal.
-After checking the joint, connect a proper grounding cable to the external grounding terminal.
6) After making a connection, check if the power supply and the signal cable are connected properly.

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7. Repair and maintenance
1) Use it in a temperature that is no more than 75% of the max scale reading.
2) Do not apply temperatures out of the temperature range.
3) Avoid sudden temperature change.
4) Do not inject fuel into the driving unit within the temperature meter.
5) Periodically check the product for normal operation at least once or twice every 6 months.
6) If the setting error is big, then disassemble the product for inspection.
7) The product can malfunction due to each part's abrasion, corrosion, external vibration, or impact
that causes distortions. In this case, you need to remove the cause, make an adjustment, or
replace parts.
8) Use the rated current according to the standard in 3.10) but in case of the built-in micro switch, it
may differ, thus consider some margins based on the rush current within the range of rated
current for the product.
9) The micro switch's contact resistance will increase gradually as time passes. Especially, in case
of contact point operation in an environment with silicon, light load can lead to an accumulation of
SiCO2 in the contact point, thus causing a sudden increase in the contact resistance. Therefore,
make sure to ventilate properly, or use it in the clean environment. Especially, if used for inputs to
the control sequence, it can cause contact point failure, thus make sure to use the 110/220V
buffer relay.
10) When opening the cover to repair or inspect the temperature meter, then first make sure to turn
off the power. If the switch malfunctions, there is a chance of ignition due to explosive gas coming
into the temperature meter, so be cautious.
8. Defect
1) If the indicator needle shakes, please check for the following.
Loose fastening of connection, worn connection, vibration near the installation location.
2) If the temperature indicated by the needle differs from the actual temperature, adjust using the
zero point adjustment device on the rear face of the thermometer.
3) If the matter cannot be resolved using the zero point adjustment device, please inquire with the
manufacturer.

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9. User's duties
1) Incorrect installation can eventually lead to an inaccurate reading of temperature.
2) During use, if one causes damage to the product due to failures to comply with the user manual,
or if one arbitrarily remodels, changes or repairs the product, the manufacturer will not be
responsible for it, and the product warranty period will expire.
3) Wise can support users’ selection but will not be responsible for them in any sort of way.
10. Product return
1) If the product gets returned for recalibration or repair work, make sure to use the original
packaging or safe packaging method, and also make sure to return the related documents.
2) Make sure to prevent exposures of the product to dust, wetness, or other sources of pollution
during the conveyance.
3) Pack it properly to prevent vibration or any kind of impact during the conveyance.
4) If the product gets damaged during the conveyance, make sure to record it on paper, and if there
is some kind of loss due to a delayed installation, one may demand compensation from the
conveyance company.

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The content of the user manual is prepared with the best efforts, but it might contain typos, or errors requiring fixes, so we
kindly ask for understanding. The product spec or exterior can be changed without a pre-notice for the quality improvement
purposes, thus Wise has the rights to change them. Figures used in the user manual are for just illustration purposes, and
they can differ from the actual shapes.
Yongin Factory
2022 Deogyeong-daero,Giheung-
gu,Yongin-si,Gyeonggi-do (Sanggal-
dong)
www.wisecontrol.com
A/S related Inquiries
2022 Deogyeong-daero,Giheung-
gu,Yongin-si,Gyeonggi-do (Sanggal-
dong)
[e-mail]
Home page : Service
center>Technology/Quote Inquiry
WISE Seoul Office
181, Gasan digital 1-ro, Geumcheon-gu,
Seoul (Gasan-dong, Gasan W CENTER)
F19
T. 02-300-2300
F. 02-300-2400

C-QIM-2731-T18_KR_Rev.1
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Indicating temperature switch
T931, T932

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목차
1. 일반사항 ................................................................................................................... 2
1.1 소개 ....................................................................................................................... 2
1.2 적용 ....................................................................................................................... 2
1.3 특징 ....................................................................................................................... 2
1.4 보증 ....................................................................................................................... 2
2. 경고 ......................................................................................................................... 3
3. 주요사양 ................................................................................................................... 4
4. 설계 ......................................................................................................................... 5
4.1 구조 ....................................................................................................................... 5
4.2 원리 ....................................................................................................................... 6
4.3 프로세스 연결부 ...................................................................................................... 6
5. 설치 지침 ................................................................................................................. 7
6. 배선 ......................................................................................................................... 8
6.1 접점의 작동에 따른 종류 및 결선 .............................................................................. 8
6.2 설정방법 ............................................................................................................... 10
6.3 배선 주의사항 ....................................................................................................... 11
7. 유지 보수 ............................................................................................................... 12
8. 결함 ....................................................................................................................... 12
9. 사용자 의무 ............................................................................................................ 13
10. 제품의 반환 .......................................................................................................... 13

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1. 일반사항
1.1 소개
본 제품은 지시계와 마이크로 스위치가 내장된 온도 지시 스위치 접점부 온도계입니다. 본 제품을 사용
하고자 하면 각각의 취급 요령을 기재한 본 사용설명서를 숙지하시고 바르게 사용하여 주시기 바랍니다.
1.2 적용
본 제품은 설정된 온도에 도달하였을 때 온, 오프(On-Off) 신호에 따른 프로세스 제어, 이상 경보, 또는
경고 등의 표시에 사용할 수 있습니다.
1.3 특징
1) 접점부 온도계는 온도 지시와 스위치 기능이 필요한 경우에 가장 적합합니다.
2)
접점부 온도계는 측정 소자가 지시용, 접점용, 각각 별개이므로 스위치 조립 후의 지시 또한 정확
합니다.
3)
마이크로 스위치는 스냅 액션(Snap action)에 의해 안정된 개폐 동작을 할 수 있습니다.
4)
접점부 온도계는 지시 눈금과 설정 눈금이 별도로 설치되어 있어 설정이 매우 쉽습니다.
1.4 보증
본 제품을 사용하실 때 사용설명서의 규정에 따르지 않아 발생하는 파손이나 임의 개조 및 변경, 수리
시에는 제조사에서 책임을 지지 않으며 제품의 보증기간은 종료됩니다.

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2. 경고
안전한 사용을 위한 취급설명서
이 제품을 바르고 안전하게 사용하기 위하여 사용 전에 이 취급설명서를 잘 읽어주시기 바랍니다.
취급시의 오류는 기기고장의 원인이 되며, 상해나 사고 등의 재해가 발생할 수 있습니다.
경 고 !
1) 안전을 위해 설치는 계장, 전기공사 등의 전문기술을 보유한 작업자가 실시하여야 합니다.
2) 사양서에 정해져 있는 정격 입출력사양의 범위 내에서 사용하십시오.
3) 본 제품은 사양서에 명시되어 있는 사용 환경에 설치하십시오.
4) 사용 가능한 온도 범위 내에서 사용하십시오. 사용 온도 범위를 초과하여 사용할 경우 온도스위치의
고장이나 파손으로 주위 안전에 영향을 미치는 원인이 됩니다.
5) 무리한 하중, 진동, 충격을 가하지 마십시오.
6) 온도계의 감지부가 휘어지지 않도록 주의하십시오. 감지부가 휘면 온도계의 정상적인 작동을 방해하
므로 온도 편차의 원인이 됩니다.
7) 본 제품의 헤드를 잡고 돌리지 마십시오. 공구를 사용하여 나사 육각부위를 잡고 돌리십시오.
8) 경년 변화 및 시간에 따른 변화를 가져오는 오링은 실링에 필요한 기능을 상실할 수 있으므로 정기
적인 교체가 필요하고 통상적으로 5년 주기로 교체하는 것이 적합합니다.
9) 현장 설치 시 반드시 사용설명서의 설치 요령에 따라 설치하여 주십시오.
10) 제품 자체의 개조 또는 새로운 기능을 추가하기 위한 개조 등은 하지 마십시오.
11) 본 제품의 케이스를 열 때에는 반드시 사전에 전원을 차단하십시오. 전류가 통할 때 배선 작업을 하
면 감전의 위험이 있습니다.

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3. 주요사양
1) 모델명
- T931: Case compensation system SAMA class ⅢB
- T932: Full compensation system SAMA class ⅢA
2) 지시계: 150 mm 원형 or 비 지시형
3) 케이스/커버 재질: Silver gray finished aluminium
4) 감지부 재질: Stainless steel 316
5) 감지부 충진액: 비 수은식 (Non mercury type)
6) 모세관 튜브 길이: 직결 or 2, 3, 5, 8, 10 Meter (표준: 3 Meter) 기타 길이는 본사 문의
7) 지시계 정밀도: ±2.0 % Of full scale
8) 재현성: ±2.0 % Of full scale
9) 접점 수량: 1 X SPDT or 2 X SPDT (각각 독립 작동)
10) 접점 용량:
정 격 전 류
저항부하 유도부하
125V AC 15A 125V AC 15A
125V DC 0.5A 125V DC 0.05A