Accessories for EST 4300 Series
Metallic Capacitive Sensor
Capacitive sensor is a passive transducer, which converts the non-electric physical quantity into corresponding capacitance. The capacitance is changed to a voltage or current signal, and is then amplified and processed. Capacitance sensor features stable temperature, simple structure, good dynamic response and non-contact measurements. Metallic capacitance sensor is utilized where small distance or displacement is to be measured and higher resolution is required.
| Precision | Stability | Temp. Limits | Zero shifts | Overpressure | Zero shifts | |
|---|---|---|---|---|---|---|
 | ±0.1%/±0.2% | ±0.2% of URL | -40～104℃ | 0.5% (static) | 6.9~31.2MPa | <1.5% |
| Span Code | Measuring Range KPa | DR | AP | GP | DP | HP |
|---|---|---|---|---|---|---|
| 2 | -0.6~1.6 | * | ||||
| 3 | 1.0~6 | * | * | |||
| 4 | 6.0~40 | * | * | * | * | |
| 5 | 40~200 | * | * | * | * | |
| 6 | 160~700 | * | * | * | * | |
| 7 | 400~2100 | * | * | * | * | |
| 8 | 1600~7000 | * | * | |||
| 9 | 4000~21000 | * | ||||
| 0 | 7000~42000 | * |
Circuit board A
EST4300-A circuit board, available for small capacitance sensor, transmits differential capacitance signals to two-wire 4–20 mA with stable and reliable performance. Compatible with ROSEMOUNT’s 275/375 communication interface and conforming to the HART protocol, EST4300-A can perform temperature compensation at two pressure points and three temperature points.
Circuit board B
EST4300-B circuit board, available for small capacitance sensor, is the upgrade of EST4300-A. With the sensor circuitry completely isolated from the housing and the feed thru-capacitor bypass technology, EST 4300-B can effectively avoid the effects of external high-voltage signal or interference to the measurements, and perform multi drop temperature compensation.
HART475 Field Communicator
HART 388 field communicator enabling commissioning, setup and other operations to HART-compliant smart instruments. Both Chinese and English menu guaranteeing easier operation.
Three-valve Manifold
ES three-valve Manifold used in such applications as metallurgy, chemical industry, pharmacy and instrument, as on-off device for controlling the process flow in pipeline engineering.
