WP421B Cylindrical Mini High Temperature Pressure Transmitter
WP421B High Temperature Mini Pressure Transmitter is the ideal solution for process control in high-temperature processes:
- ✦ Steam System and Boiler
- ✦ Heating Furnaces
- ✦ Thermal Power Unit
- ✦ Injection Molding Machine
- ✦ Synthesis Tower
- ✦ High-temperature Reactor
- ✦ Thermal Fluid System
WP421B High Temperature Pressure Transmitter features a light cylindrical housing that product size and weight are under control. It incorporates a physical isolation zone between the high temperature process connection and the low temperature electronic unit, utilizing heat sinks to rapidly dissipate heat into the surrounding air and prevent direct thermal transfer into the transmitter’s core components.
Mini and lightweight housing
Various forms of output signal for selection
Heat insulation gasket protection
Convenient DIN electrical connector
Cooling element employed to dissipate heat
Operating temperature grades: 150℃, 250℃, 350℃
Relay switch and field interface available
Ex-proof types available: Intrinsically safe; Flame-proof
| Item name | Cylindrical Mini 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 | Hirschmann(DIN); Waterproof plug; Aviation plug, Customized | ||
| Output signal | 4-20mA(1-5V); Modbus RS-485; HART Protocol; 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; Flameproof | ||
| 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 | |
| For more information about WP421B Mini High Temperature Pressure Transmitter please feel free to keep in touch with us. | |||








