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High-Precision JK49 Series Digital Display Pressure Sensor | China Suppliers and Factory with Advanced Features
Application Industry
Pipeline pressure monitoring
Air leak testing
F.R.L (Filter, Regulator, Lubricator)
Gas storage cylinders
Adsorption verification
Air compressors
Product Parameters
| Parameter Category | Specific Parameter | Specification |
|---|---|---|
| Withstand Pressure | Micro pressure | 20kPa (micro pressure) |
| Positive pressure | 1.5MPa (positive pressure) | |
| Compound pressure | 500kPa (compound pressure) | |
| Rated Pressure Range | Micro pressure | -10～10kPa (micro pressure) |
| Positive pressure | -0.100～1.000MPa (positive pressure) | |
| Compound pressure | -100～100kPa (compound pressure) | |
| Protection Grade | — | IP40 |
| Set Pressure Range | Micro pressure | -10.3～10.3kPa (micro pressure) |
| Positive and negative pressure | -0.103～1.030MPa (positive and negative pressure) | |
| Compound pressure | -103～103kPa (compound pressure) | |
| Display Refresh Rate | — | 5 times/second |
| RS485 Communication Distance | — | Maximum connection distance ≤1200m |
| Ambient Temperature | — | 0～50℃ |
| Color | — | 3 colors (white, red, orange) |
| Load Current | — | ≤200mA |
| Humidity | Action and storage | 35～85% (no water condensation) |
| Internal Pressure Drop | — | ≤1.0V |
| Wire Specification | — | Oil-resistant PVC cable (0.15mm²) |
| Current Consumption | No load | ≤40mA |
| Repeatability Accuracy | — | ±0.3%F.S ±1digit |
| Linearity | — | ±1%F.S |
| Action Indication | — | Orange OUT1 |
| Weight | Without cable | Approximately 28g |
| Applicable Gas | — | Air, non-corrosive, non-flammable (general type); Air with condensed water, non-corrosive, non-flammable (water-resistant type) |
| Minimum Unit Scale Value | Positive pressure type kPa | kPa(0.001), kgf/cm²(0.01), bar(0.01), psi(0.1) |
| Micro and positive-negative pressure type kPa | kPa(0.1), mmHg(1), kgf/cm²(0.001), bar(0.001), psi(0.01), inHg(0.1) | |
| Vibration Resistance | Amplitude, frequency, time | Amplitude 1.5mm, 10Hz～55Hz～10Hz per minute, 2 hours for each of X, Y, Z directions |
| Storage Temperature | Storage | -10℃～60℃ (without water condensation and freezing) |
| Temperature Characteristic | — | ±3%F.S, reference temperature 25℃ (0～50℃ temperature range) |
| Baud Rate | — | 9600bps, 19200bps, 38400bps, 57600bps, 115200bps |
| Insulation Resistance | Between lead and plastic shell | ≥50MΩ (DC 500V) |
| Output Voltage | Rated voltage | 0.6V～5V ±2.5%F.S (rated voltage) |
| Display Accuracy | — | ±1%F.S ±1digit (temperature 25±3℃) |
| Withstand Voltage | Between lead and plastic shell | AC 1000V for 1 minute |
| Impact Resistance | — | 100m/s²(10G), 3 times for each of X, Y, Z directions |
| Output Type | — | Open collector output (NPN or PNP, up to 1 channel output) |
| Interface Diameter | — | R1/8"*M5, NPT1/8", G1/8(BSPP)*M5 |
| Response Time | — | ≤2.5ms (can be set to 25, 100, 250, 500, 1000, 1500ms) |
Design Aesthetics
Frequently Asked Questions
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Q What pressure ranges does this pressure sensor support?This pressure sensor supports three pressure types: micro pressure (-10～10kPa), positive pressure (-0.100～1.000MPa), and compound pressure (-100～100kPa). The withstand pressure values are 20kPa, 1.5MPa, and 500kPa respectively, making it suitable for a wide variety of industrial applications.
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Q What types of gases is this sensor compatible with?The sensor is compatible with air and non-corrosive, non-flammable gases in the general type version. The water-resistant type is also suitable for air with condensed water, as long as the gas remains non-corrosive and non-flammable.
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Q What communication interfaces and baud rates does this sensor support?The sensor supports RS485 communication with a maximum connection distance of up to 1200m. It is compatible with multiple baud rates including 9600bps, 19200bps, 38400bps, 57600bps, and 115200bps, providing flexible integration options for industrial automation systems.
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Q What is the operating temperature range and how does temperature affect accuracy?The sensor operates within an ambient temperature range of 0～50℃ and can be stored between -10℃ and 60℃ (without condensation or freezing). Temperature characteristics are rated at ±3%F.S with a reference temperature of 25℃ across the full operating range. Display accuracy is ±1%F.S ±1digit at 25±3℃.
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Q What output types and interface diameters are available?The sensor offers open collector output in both NPN and PNP configurations, supporting up to 1 channel output. Available interface diameters include R1/8"*M5, NPT1/8", and G1/8(BSPP)*M5, allowing compatibility with a broad range of pneumatic and industrial piping systems.
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Q What are the typical application industries for this pressure sensor?This sensor is widely used across multiple industries including pipeline pressure monitoring, air leak testing, F.R.L (Filter, Regulator, Lubricator) systems, gas storage cylinders, adsorption verification processes, and air compressor systems — making it a versatile solution for pneumatic and industrial automation environments.