| Parameter | Specification |
|---|---|
| Product Name | Low Pressure Sensor |
| COGENG Part Number | KM15-P02 (KM15P02) |
| OEM Equivalent | Sumitomo KM15-P02, KM15P02 |
| Product Type | Hydraulic Low Pressure Sensor |
| Sensor Type | Piezoresistive pressure transducer |
| Output Type | 4-20 mA or 0.5-4.5V (application dependent) |
| Application | Pilot pressure, return line pressure, low-pressure circuits |
| Compatible Models | Sumitomo SH200, SH210, SH240, SH250 Excavators |
| Material | Iron + Rubber (seals: NBR / FKM) |
| Packing | PP bag inside, carton box outside |
| Place of Origin | Guangdong, China |
| Brand Name | COGENG |
| Certification | ISO9001 |
| Supply Capacity | 500 PCS |
| Brand | Part Number |
|---|---|
| COGENG | KM15-P02, KM15P02 |
| Sumitomo | KM15-P02, KM15P02 |
| Interchange | KM15-P03, KM15-P04, KM15-P05, KM15-P06 |
| Parameter | Specification |
|---|---|
| Supply Voltage | 8-36V DC (typically 24V system) |
| Output Signal | 4-20 mA (current loop) or 0.5-4.5V analog |
| Current Draw | ≤ 25 mA |
| Response Time | < 5 ms |
| Insulation Resistance | ≥100MΩ @ 500V DC |
| Reverse Polarity Protection | Yes |
| Overvoltage Protection | Yes |
| Parameter | Specification |
|---|---|
| Pressure Range | 0 - 50 bar (0 - 725 psi) |
| Measurement Type | Gauge pressure |
| Accuracy | ±1.0% to ±2.0% of full scale |
| Overpressure Limit | 75 bar (1,088 psi) |
| Burst Pressure | 100 bar (1,450 psi) |
| Compensated Temperature | -40°C to +105°C |
| Pressure (bar) | Pressure (psi) | Output (mA) | Condition |
|---|---|---|---|
| 0 | 0 | 4.0 ±0.1 | No pressure |
| 12.5 | 181 | 8.0 ±0.1 | Low pressure |
| 25 | 363 | 12.0 ±0.1 | Medium pressure |
| 37.5 | 544 | 16.0 ±0.1 | High pressure |
| 50 | 725 | 20.0 ±0.1 | Maximum pressure |
| Pressure (bar) | Pressure (psi) | Output (V) | Condition |
|---|---|---|---|
| 0 | 0 | 0.5 ±0.1 | No pressure |
| 12.5 | 181 | 1.5 ±0.1 | Low pressure |
| 25 | 363 | 2.5 ±0.1 | Medium pressure |
| 37.5 | 544 | 3.5 ±0.1 | High pressure |
| 50 | 725 | 4.5 ±0.1 | Maximum pressure |
| Parameter | Specification |
|---|---|
| Connector Type | 3-pin Deutsch DT / AMP |
| Mounting Thread | 1/4"-18 NPT or 7/16-20 UNF (OEM spec) |
| Hex Size | 19 mm (3/4") or 22 mm (7/8") |
| Housing Material | Stainless steel / Zinc-nickel plated steel |
| Diaphragm Material | 17-4PH stainless steel |
| Seal Material | NBR / FKM (Viton) |
| Weight | 0.08 - 0.12 kg (0.18 - 0.26 lbs) |
| Overall Length | 55-65 mm |
| Pin | Function | Signal Type | Wire Color (Typical) |
|---|---|---|---|
| Pin 1 | Sensor Supply (+) | 24V DC | Red |
| Pin 2 | Sensor Signal | 4-20 mA or 0.5-4.5V | Yellow/White |
| Pin 3 | Sensor Ground (-) | 0V | Black |
| Parameter | Rating |
|---|---|
| Operating Temperature | -40°C to +105°C (-40°F to +221°F) |
| Ingress Protection | IP67 / IP69K (connector mated) |
| Vibration Resistance | 20G @ 50-2000Hz |
| Shock Resistance | 100G |
| Media Compatibility | Hydraulic oil |
| Corrosion Protection | 500+ hours salt spray |
| Model | Series | Application |
|---|---|---|
| SH200 | Standard | Low pressure monitoring (pilot, return) |
| SH200-3 | Dash 3 | Low pressure monitoring |
| SH200-5 | Dash 5 | Low pressure monitoring |
| SH200-6 | Dash 6 | Low pressure monitoring |
| SH200-8 | Dash 8 | Low pressure monitoring |
| Model | Series | Application |
|---|---|---|
| SH210 | Standard | Low pressure monitoring |
| SH210-3 | Dash 3 | Low pressure monitoring |
| SH210-5 | Dash 5 | Low pressure monitoring |
| SH210-6 | Dash 6 | Low pressure monitoring |
| SH210-8 | Dash 8 | Low pressure monitoring |
| Model | Series | Application |
|---|---|---|
| SH240 | Standard | Low pressure monitoring |
| SH240-3 | Dash 3 | Low pressure monitoring |
| SH240-5 | Dash 5 | Low pressure monitoring |
| SH240-6 | Dash 6 | Low pressure monitoring |
| SH240-8 | Dash 8 | Low pressure monitoring |
| Model | Series | Application |
|---|---|---|
| SH250 | Standard | Low pressure monitoring |
| SH250-3 | Dash 3 | Low pressure monitoring |
| SH250-5 | Dash 5 | Low pressure monitoring |
| SH250-6 | Dash 6 | Low pressure monitoring |
| SH250-8 | Dash 8 | Low pressure monitoring |
| Application | Pressure Range | Function |
|---|---|---|
| Pilot Pressure | 0-50 bar | Monitors pilot control pressure for implement operation |
| Return Line Pressure | 0-50 bar | Monitors hydraulic return filter condition |
| Case Drain Pressure | 0-10 bar | Monitors pump/motor case pressure |
| Lubrication Circuit | 0-20 bar | Monitors component lubrication pressure |
| Brake Circuit | 0-50 bar | Monitors brake system pressure (if applicable) |
| Cooling Circuit | 0-10 bar | Monitors hydraulic oil cooler circuit |
Q: What Sumitomo models use the KM15-P02 low pressure sensor?
A: The COGENG Fridayparts KM15-P02 (also referenced as KM15P02) low pressure sensor is a direct OEM replacement specifically designed for Sumitomo SH200, SH210, SH240, and SH250 excavator models. This sensor is typically used in the hydraulic or engine system for monitoring low pressure circuits. Always verify this part number against your machine's parts manual or the original sensor's identification markings to confirm exact compatibility before ordering.
Q: What are the symptoms of a failing low pressure sensor on a Sumitomo excavator?
A: Common symptoms include inaccurate or erratic pressure readings on the monitor panel, active diagnostic trouble codes related to the pressure sensor circuit, degraded hydraulic performance or unexpected power reduction, the machine entering a failsafe or limp mode, or the engine control system failing to properly match engine speed to hydraulic load demand. A faulty pressure sensor can significantly impact overall machine performance, digging force, and fuel efficiency.
Q: How does the low pressure sensor affect excavator operation?
A: The KM15-P02 sensor provides real-time pressure data to the machine's electronic control system. This information is used to manage pump displacement, engine speed matching, and implement response. Accurate pressure sensing is essential for smooth hydraulic operation, preventing system overloads, and optimizing fuel consumption.
Q: Is this sensor a direct plug-and-play replacement?
A: Yes, the COGENG Fridayparts KM15-P02 sensor is manufactured to exact OEM specifications for thread size, electrical connector type, pressure range, output signal characteristics, and response time. It is a direct plug-and-play replacement requiring no wiring modifications or adapters when installed on compatible Sumitomo excavator models.
Q: What is the warranty coverage for this low pressure sensor?
A: COGENG Fridayparts provides a standard 12-month warranty against manufacturing defects from the date of installation. Proof of purchase and installation by a qualified technician are required. Warranty does not cover failure caused by hydraulic fluid contamination, over-pressurization, improper installation, overtightening, thread damage, or use on incompatible equipment.
Q: What should I check before installing the new pressure sensor?
A: Before installation, verify the hydraulic system is depressurized, inspect the sensor mounting port for debris or damage, check the electrical connector for corrosion, and apply the appropriate thread sealant if specified by the service manual. Torque the sensor to manufacturer specifications to prevent thread damage or hydraulic leaks. Contaminated hydraulic fluid can damage the new sensor, so verify fluid cleanliness.
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