CAN Bus Mining Pressure Sensor | Intrinsically Safe Ex ia IIC T6 | PF60
The PF60 is an intrinsically safe (Ex ia IIC T6 Ga), heavy-duty pressure transmitter engineered specifically for underground coal mining, roadheaders, and high-vibration heavy hydraulic machinery. Featuring a 316 stainless steel housing and a 17-4PH sputtered thin-film sensing core, the PF60 provides exceptional shock resistance (50g), fast response (<1 ms), and burst pressure protection up to 4000%.
-
Target Applications: Coal scrapers, roadheaders, coal mining machines, hydraulic roof supports, and heavy industrial pump stations.
-
Explosion Protection: Certified Intrinsically Safe according to Ex ia IIC T6 Ga.
-
Output Signals: CAN Bus, 4-20 mA, 0.5-4.5V ratiometric, and 0.5-4.5V non-ratiometric.
-
Pressure Ranges: 4 MPa up to 180 MPa (40 bar to 1800 bar).
Description
Heavy-Duty Intrinsically Safe Pressure Sensing for Extreme Mining Environments
Underground mining and heavy hydraulic machinery demand pressure sensors that can withstand explosive gas atmospheres, heavy coal dust, severe thermal shifts, and violent hydraulic pressure spikes. The PF60 Sputtered Thin Film Pressure Sensor is built to meet strict coal mine safety regulations and GB3836.4-2000 intrinsically safe standards (Ex ia IIC T6 Ga).
Constructed with an all-welded 316 stainless steel body and a 17-4PH sputtered film cell, the PF60 eliminates internal organic seals, preventing seal degradation in aggressive hydraulic fluids or harsh ambient conditions. Whether deployed on underground coal scrapers, roadheaders, or high-pressure hydraulic support systems, the PF60 provides real-time pressure monitoring with an ultra-fast <1 ms response time and long-term stability of +/-0.2% FS/year.
Typical Applications
-
Underground Coal Scraping & Extraction: Real-time hydraulic line monitoring on coal scrapers, loaders, and shearers.
-
Roadheaders & Tunneling Machinery: Heavy-duty pressure control for cutting heads and hydraulic advance cylinders.
-
Hydraulic Roof Support Systems: High-pressure monitoring for underground mine shield supports and hydraulic jacks.
-
Mining Equipment Pump Stations: Continuous pressure feedback in central high-pressure water and fluid supply stations.
-
Heavy Mobile Hydraulics: High-vibration mobile equipment requiring CAN Bus communication or intrinsically safe approval.
Features
-
Intrinsically Safe Explosive Atmosphere Rating: Certified Ex ia IIC T6 Ga for explosive gas and coal dust environments.
-
Flexible Digital & Analog Outputs: Supports CAN Bus, 4-20 mA (2-wire), and 0.5-4.5V (ratiometric/non-ratiometric).
-
Extreme Burst & Overload Protection: Overload tolerance up to 300% and burst pressure resistance up to 4000% (or <=400 MPa).
-
Rugged All-Welded Construction: 316 stainless steel housing with a 17-4PH sensing core for maximum corrosion resistance and durability.
-
High Vibration & Shock Immunity: Tested against 50g shock (11 ms) and 20g random vibration.
-
Quick-Install Pressure Ports: Available with G6 dedicated quick-install port, G1/4″, or M20x1.5 thread connections.
Specification
| Feature | Technical Specification |
| Sensing Technology |
Sputtered Thin Film on 17-4PH Stainless Steel |
| Housing Material |
316 Stainless Steel |
| Measuring Ranges |
4 MPa to 180 MPa (40 bar to 1800 bar) |
| Explosion-Proof Class |
Ex ia IIC T6 Ga (Intrinsically Safe) |
| Accuracy Class |
+/- 0.3% FS |
| Overload Pressure |
300% (4-40 MPa), 200% (60-80 MPa), 150% (100-180 MPa) |
| Burst Pressure |
1000% to 4000% FS (<= 400 MPa) |
| Output Signals |
CAN Bus, 4-20 mA, 0.5-4.5V (non-ratiometric), 0.5-4.5V (ratiometric) |
| Power Supply |
12 to 36 VDC |
| Response Time |
< 1 ms |
| Long-Term Stability |
+/- 0.2% FS / year |
| Operating / Medium Temp. |
-40°C to +95°C |
| IP Rating |
IP65, IP67 optional |
| Vibration / Shock Rating |
Vibration: 20g (GB/T2423.56) / Shock: 50g, 11 ms |
| Pressure Connections |
G6 (Dedicated PF60 port), G1/4″, M20x1.5 |
| Electrical Connections |
11 (Dedicated PF60 connector), 02 (Direct explosion-proof cable outlet) |
FAQ
Q: Is the PF60 suitable for underground coal mines with explosive gas risks? A: Yes. The PF60 is designed according to Coal Mine Safety Regulations and GB3836.4-2000 standards, holding an Ex ia IIC T6 Ga intrinsically safe explosion-proof rating.
Q: Does the PF60 support digital network protocols? A: Yes. In addition to standard 4-20 mA and 0.5-4.5V analog outputs, the PF60 can be configured with a CAN Bus output for modern machine network integration.
Q: What is the benefit of the G6 dedicated pressure port? A: The G6 pressure port is a quick-installation connector designed for fast field installation and maintenance on heavy machinery hydraulic manifolds, minimizing machine downtime during service.
Q: How does the sputtered thin-film technology handle heavy vibration? A: Sputtered thin-film technology welds the strain gauge molecularly to the 17-4PH stainless steel cell. Because there are no internal glues or organic O-rings to degrade, it withstands high vibration (20g) and heavy mechanical shock (50g) without zero drift.
