WP421B Waterproof Plug Connection Compact High Temperature Pressure Transmitter
WP421B High Temperature Application Compact Pressure Transmitter is designed for process pressure control at a temperature of 250℃ for different industries:
- ✦ Petrochemical
- ✦ Mining & Metallurgy
- ✦ Thermal Power Generation
- ✦ Steel Mill
- ✦ Refining
- ✦ Material Manufacturing
- ✦ Aerospace
WP421B High Temperature Pressure Transmitter employs heat sinks at the bottom of all stainless steel cylindrical housing to operate stably over long period at high medium temperature up to 250℃ medium in the process. The cooling element along with heat insulating material and gasket can effectively protect the electronic circuit board from damage of thermal conduction. The electrical connection can utilize M12 waterproof plug, achieving overall IP67 protection rating.
Small and lightweight body
Various analog and digital output choices
PTFE insulation gasket protection
Different connectors for power supply
Welded cooling fins structural design
Max. working temperature classes: 150℃, 250℃, 350℃
Optional LCD, LED indicators and relay alarms
Available Ex-proof options: Intrinsically safe; Flame-proof
| Item name | Waterproof Plug Connection Compact High Temperature Pressure Transmitter | ||
| Model | WP421B | ||
| Measuring range | 0—(± 0.1~±100)kPa, 0 — 50Pa~400MPa | ||
| Accuracy | 0.1%FS; 0.2%FS; 0.5 %FS | ||
| Pressure type | Gauge pressure(G), Absolute pressure(A),Sealed pressure(S), Negative pressure (N). | ||
| Process connection | G1/2, M20*1.5, 1/2NPT, 1/4NPT, Customized | ||
| Electrical connection | Waterproof plug; Aviation plug; Hirschmann(DIN), Customized | ||
| Output signal | 4-20mA(1-5V); Modbus RS-485; HART; 4-20mA + HART/RS485, Customized | ||
| Power supply | 24VDC; 220VAC, 50Hz | ||
| Compensation temperature | -10~70℃ | ||
| Ambient temperature | -40~85℃ | ||
| Max. medium temperature | 150℃; 250℃; 350℃ | ||
| Explosion-proof | Intrinsically safe Ex iaIICT4 Ga; Flameproof Ex dbIICT6 Gb | ||
| Material | Housing: SS304 | ||
| Wetted part: SS304/316L; Hastelloy C-276; Monel, Customized | |||
| Media | Liquid, gas or fluid in high temperature | ||
| Indicator (local display ) | LCD, LED, Tilt LED with 2-relay | ||
| Maximum pressure | Measurement upper limit | Overload | Long term stability |
| <50kPa | 2~5 times | <0.5%FS/year | |
| ≥50kPa | 1.5~3 times | <0.2%FS/year | |
| Note: When measuring range <1kPa, only non or weakly corrosive gas can be measured. | |||
| For more information about WP421B Compact High Temp. Application Pressure Transmitter please feel free to keep in touch with us. | |||








