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High-Precision JK49 Series Digital Display Pressure Sensor from Reliable China Suppliers and Factory
✎ 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
Q
What pressure ranges does this pressure sensor support?
This sensor supports three pressure types: micro pressure (-10～10kPa), positive pressure (-0.100～1.000MPa), and compound pressure (-100～100kPa). The withstand pressure for each type is 20kPa, 1.5MPa, and 500kPa respectively, making it suitable for a wide range of industrial applications.
Q
What industries and applications is this pressure sensor designed for?
This sensor is widely used in pipeline pressure monitoring, air leak testing, F.R.L (Filter, Regulator, Lubricator) systems, gas storage cylinders, adsorption verification, and air compressors. It is suitable for any application requiring precise pneumatic pressure measurement and control.
Q
Does this sensor support RS485 communication, and what is the maximum communication distance?
Yes, the sensor supports RS485 communication with a maximum connection distance of ≤1200m. It supports multiple baud rates including 9600bps, 19200bps, 38400bps, 57600bps, and 115200bps, providing flexible integration into industrial automation systems.
Q
What is the display accuracy and response time of this sensor?
The display accuracy is ±1%F.S ±1digit at a reference temperature of 25±3℃, with a display refresh rate of 5 times per second. The response time is ≤2.5ms, and can be configured to 25, 100, 250, 500, 1000, or 1500ms depending on the application requirement.
Q
What are the operating and storage temperature ranges for this sensor?
The ambient operating temperature range is 0～50℃, while the storage temperature range is -10℃～60℃ (without water condensation and freezing). The temperature characteristic is ±3%F.S with a reference temperature of 25℃ across the full operating range.
Q
What types of gases are compatible with this pressure sensor?
The general type is compatible with air that is non-corrosive and non-flammable. The water-resistant type supports air with condensed water, also non-corrosive and non-flammable. Please ensure the gas medium matches the specified type before installation to maintain sensor accuracy and longevity.