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High-Precision JK49 Series Digital Display Pressure Sensor - China Suppliers and Factory for Accurate Measurement
⚙ 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
What main industrial applications is this product suitable for?
It is designed for pipeline pressure monitoring, air leak testing, F.R.L systems, gas storage cylinders, adsorption verification, and air compressors.
What is the protection rating and applicable gas type?
The product features an IP40 protection rating. It is suitable for air, non-corrosive, and non-flammable gases, with water-resistant types available for air containing condensed water.
What is the maximum communication distance for RS485 connection?
The RS485 communication line supports a maximum connection distance of up to ≤1200 meters.
What output options and response times are available?
It supports Open Collector output (NPN or PNP up to 1 channel) with a fast response time of ≤2.5ms, which can be adjusted up to 1500ms.
What are the display characteristics of the device?
The screen provides a 3-color display (white, red, orange) with a refresh rate of 5 times per second for real-time monitoring.