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YHSP-SA-Ex is an intrinsically safe electronic leak point sensor designed for chemical-family specific detection of organic solvents and oils on-site. Its Ex ia intrinsically safe design (Ex ia IIC T6, KCs certified) is suitable for hazardous areas when used in an intrinsically safe circuit. It detects organic solvents and oil-based chemicals without responding to water. Response time is 2 to 60 seconds, depending on the chemical. The replaceable YHS-FS floor sensor cartridge allows the sensor body to remain installed, supports quick field replacement and reduces maintenance costs.

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๐ก๏ธ KCs Intrinsically Safe Certification | Ex ia IIC T6
Chemical-family specific detection for organic solvent & oil leaks, without responding to water
YHSP-SA-Ex: chemical family detection, fast response and a replaceable sensor cartridge
Detects leaks within 2 to 60 seconds, depending on the chemical. The YHSP-SA-Ex intrinsically safe electronic leak point sensor detects organic solvents and oils without responding to water and operates with the required MTL7760ac Zener barrier and a compatible YOOHANTECH leak detection control module.
๐ฌ Optimized Detection by Chemical Family (Organic Solvents & Oils)
โข Designed for chemical-family specific detection of organic solvents and oils without responding to water. Typical detection media include THF, acetone, IPA, toluene, MEK and xylene.
๐ง Replaceable Sensor Cartridge (Cost Saving)
โข The YHS-FS floor sensor cartridge is replaceable while the sensor body remains installed. This supports quick field replacement and reduced maintenance costs.
๐ก๏ธ Intrinsically Safe Design (Ex ia)
โข KCs-certified Ex ia IIC T6 design is suitable for hazardous areas. Use the sensor only in an intrinsically safe circuit.
๐ก Control Module Integration
โข Operates with the MTL7760ac Zener barrier and a YOOHANTECH leak detection control module. Select either YHSM-01S-A (1 channel) or YHSM-04S-A (4 channels).
โ๏ธ Intrinsically Safe Leak Detection System Configuration (System Configuration)
โข Intrinsically Safe Ex ia Protection
Use the sensor only in an intrinsically safe circuit. KCs intrinsic safety certification: Ex ia IIC T6, Certificate No. 25-AV2BO-0187X. Refer to the YHSP-SA-Ex Sensor Wiring Guide for detailed wiring instructions.
โข Required System Components
The YHBK-P02 protective housing, YHWS-P02 grounding and positioning base, and MTL7760ac Zener barrier are required. Use either a YHSM-01S-A (1-channel) or YHSM-04S-A (4-channel) leak detection control module.
View test footage verified under real leak conditions, including sensor response and alarm operation.
| Item | Details |
| Model | YHSP-SA-Ex |
| Operating Voltage | DC 2.5 V |
| Measurement Range | โข A1: 0 ~ 100.0 Mฮฉ โข A2: 0 ~ 60.00 Mฮฉ โข A3: 0 ~ 6.000 Mฮฉ |
| Output | Level Shift |
| Detection Media | Organic solvents and oil-based chemicals, including NMP, MEK, toluene, and gasoline |
| Sensor Dimensions | 68 ร 68 ร 32 (ยฑ0.5) mm |
| Overall Dimensions | 178 ร 80 ร 34 (ยฑ0.5) mm |
| Materials | SUS 304, PP, carbon, etc. |
| Operating Environment | Around tanks and piping in industrial facilities Suitable for indoor and outdoor use |
| Operating Temperature | -20 to +55 ยฐC |
| Response Time | 2 to 60 seconds (depending on the chemical) |
| Typical Detection Media | Oils, organic solvents, and VOCs: insulating oil, engine oil, OMCTS, tar oil, TDA, TDI, benzene, xylene, etc. |
| Sensor Wiring | 2-wire sensor: White (+), Black (โ) |
| Certification | KCs Intrinsic Safety Certification โ Ex ia IIC T6 Certificate No. 25-AV2BO-0187X Certification Body: KOSHA |
| Intrinsic Safety Parameters | Ui = 10 V; Ii = 200 mA; Pi = 0.5 W Li = 0.4 mH (with 160 m cable) Ci = 33.6 nF (with 160 m cable) Ta: -20 to +55 ยฐC |
| Key Points | โขย Chemical family detection: organic solvents and oil-based chemicals โข No response to water โข Control module integration: MTL7760ac barrier with either YHSM-01S-A or YHSM-04S-A โข Replaceable YHS-FS cartridge: sensor body remains installed; reduced maintenance costs โข Intrinsically safe design: Ex ia IIC T6; use only in an intrinsically safe circuit |
Semiconductors ยท Petrochemicals ยท Oil Refining ยท Batteries ยท Power Generation ยท Steel ยท Warehousing ยท Wastewater Treatment ยท Defense
Explore real industrial leak detection installations and get guidance on a configuration that fits your facility.
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๐นYHSM-01S-A (1-Channel Leak Detection Control Module) |
๐นYHSM-04S-A (4-Channel Leak Detection Control Module) |
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๐นYHS-FS (Floor Sensor Cartridge โ Replacement) |
๐นYHWS-P02 (Grounding & Positioning Base โ Required) |
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๐นMTL7760ac (Zener Barrier โ Required) |
YHBK-P02 Dedicated Protective Housing, YHWS-P02 Grounding & Positioning Base, and MTL7760ac Zener Barrier are required.
Select either the YHSM-01S-A (1-channel) or YHSM-04S-A (4-channel) control module.
YHS-FS is an optional replacement floor sensor cartridge.
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