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LFM77 Explosion-proof Diferential Pressure Transmitter is a high accuracy and high stability device desianed for explosion risk environment. it is equipped with multiple optional pressure ranges, with easy on-site adjustment through buttons. Use ip65 housing, suitable for energy management systems, HVAC, VAV and fan control, environmental pollution control, pressure and smoke hood control of static pipeline and clean room, oven pressurization, and boiler ventilation control.
Features
* Use MEMS micro pressure core, with high accuracy and wide working temperature range;
* LCD digital display with clear reading;
* Zero button available, pressure range adjustable;
* Strong stability, long service life;
* lP65 protection level housing.
| Measurement Medium | Air or neutral gas |
| Pressure Range | ±100Pa~±10000Pa(customizable) |
| Over Voltage | 10KPa; 80KPa(LFM77-3) |
| Accuracy | ±1.0%FS |
| Working Temperature | -20℃-80°C |
| Compensation Temperature | -10℃~60℃ |
| Storage Temperature | -40℃~85℃ |
| Response Time | 0.5s(default)/1.0s/2s /4s |
| Protection Degree | IP65 |
| Pressure Connection | Stainless steel 1/2"quick connection |
| Output Signal | 4-20mA/0-10VDC/RS485 |
| Power Supply① | 12-30VDC/24VAC±20% |
| Power Dissipation | ≤1.5W |
| Shell Material | Cast Aluminium |
| Communication | RS-485 standard interface, Modbus RTU protocol |
| Certification | ROHS，CE |
| Explosion-Proof Cert | EXd lIC T6 Gb |
| Display | LCD digital display |
| Weight (Approximate) | 1238g |
①Note: (When the product is powered by AC power, it is recommended to use an isolated AC power supply.)
Use MEMS micro pressure core, with high accuracy and wide working temperature range;
LCD digital display with clear reading;
Zero button available, pressure range adjustable;
Strong stability, long service life;
lP65 protection level housing.
energy management systems
HVAC, VAV and fan control
environmental pollution control
pressure and smoke hood control of static pipeline and clean room
oven pressurization
boiler ventilation control
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