數位遠端感測器（DRS）傳送器透過專用通訊電纜，遠端連接master(高壓側)和slave(低壓側)sensor，測量壓差。
EJXC40A適用於測量液體，氣體或蒸汽流量以及液位，密度和壓力，並輸出與壓差相對應的4至20 mA直流訊號。
主要特點
- 高性能，高精度和高可靠性
- 隔膜密封系統的長毛細管具有更好的性能。
- 適用於高水箱的液位測量
- DRS電纜長度（最大）：45米
- 適用於各種桶槽類型之訊號源
Details
數位遠端感測器（DRS）可以多元的解決方案
- 沒有桶槽高度的限制
- 穩定的液位測量，溫度效應最小化
- 單sensor傳感器精度：
- 跨度0.055％
- 跨度0.025％（適用於EJX630螺芽安裝/ HAC）
大範圍差壓測量
- 螺芽類型：高達50MPa
- 高達70MPa（適用於EJX630-Dcapsule螺芽安裝）
- 法蘭類型：最高法蘭等級
數位遠端感測器（DRS）連接兩個傳送器，因此不受太陽輻射和溫度變化的影響。
| Items | Specifications |
|---|---|
| Output Signal | HART7 |
| Variables | PV％/ DP/ Master-P/ Slave-P/ Engr. PV/ Master-T/ Slave-T/ AMP Temperature (Master)/ Output Current Value |
| Measurement Span | Range: 0-0.2/2/10/50MPa (in case of EJX530A) Range: 0-0.2/2/10/70MPa (in case of EJX630A) (Flange model: up to Flange Rating) |
| Accuracy | +-0.055% of span (single sensor accuracy with flange) (Accuracy of screwed-mount type is same as normal transmitters’ accuracy 0.04% or 0.025% for EJX630 with /HAC. System accuracy can be calculated by configuration-tool) |
| Long Term Stability | 0.1% of URL per 10 years (All normal operating condition) |
| Temperature Effect @50℉ (28℃) change | 0.14% span + 0.028% URL (sensor) (System accuracy can be calculated by Configuration-Tool) |
| Response Time | 250ms (Update Period: 90ms) |
| Cable length | 15/30/45 m |
參考
摘要:
DP Level transmitter configuration can be very time consuming. Yokogawa DPharp EJA/EJX Pressure transmitters realize reduction in man hours by smart level setup feature.
摘要:
Differential pressure level measurement has an enemy- temperature. Temperature can have a negative effect on the accuracy of level measurement. This article covers why temperature has this effect and how it can be reduced.
下載
產品型錄
操作手冊
- EJXC40A Digital Remote Sensor (10.3 MB)
產品規格
- EJX, EJA-E Series Diaphragm Seal System (7.4 MB)
- EJXC40A Digital Remote Sensor (1.7 MB)
認證證明
- EJXC40A Exida SIL Certificate (263 KB)
產品外型圖
- EJXC40A Digital Remote Sensor Primary Transmitter (EJX530A/EJX630A Output Signal Code -P) (257 KB)
- EJXC40A Digital Remote Sensor Secondary Transmitter (EJX530A/EJX630A Output Signal Code -S) (252 KB)
- C20FW Direct Mount Flanged Diaphragm Seal (Flush type) (371 KB)
- C20FE Direct Mount Flanged Diaphragm Seal (Extended type) (352 KB)
- C30SW Direct Mount Hygienic Diaphragm Seal (Flush Type) (237 KB)
- C30SE Direct Mount Hygienic Diaphragm Seal (Extended Type) (255 KB)
- C10FR Flushing Connection Ring (231 KB)
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