WFx Explosionproof Melt Pressure Transmitter (Oil-filled) - 2-wire 4-20 mA
Available Configuration
OUTPUT SIGNAL
VERSION
CONNECTOR
ACCURACY CLASS
RANGE
THREAD
RIGID STEM LENGTH* (mm, inches)
FLEXIBLE LENGTH* (mm, inches)
Standard version
Description
The WF Series Explosionproof Melt Pressure Transmitter combines the amplifier and sensor in a stainless steel welded enclosure with a conduit cable fitting. This fully sealed enclosure is designed for hazardous areas. Applied pressure at the measurement point is converted into a proportional voltage signal, which is then transformed by the amplifier into a 4–20 mA output. A small capillary tube filled with a special medium protects the amplifier from thermal stress.
- Factory Mutual Explosionproof: Class I, Division 1, Groups A, B, C, D; Dust-Ignitionproof: Class II, Division 1, Groups E, F, G
- Additional approvals: CE, NEMA 4 / IP65
- High-level 2-wire 4–20 mA output
- Accuracy: < ±0.25% FSO (High), < ±0.5% FSO (Medium)
- Internally generated 80% FSO calibration signal (R-Cal)
- Standard threads: ½–20 UNF; M18 × 1.5 available upon request
- Fluid-filled system ensures stable operation across temperature variations
- 17-7 PH corrugated diaphragm with TiN (Titanium Nitride) coating included as standard
- FDA-approved oil-fill meeting CFR 172.3620 and 172.878 requirements
Data Sheet