適用於空中游離和懸浮微粒應用的 MCA-8000D PA 選件

選件 PA 套件主要是為了方便使用者在空中遊離（尺寸校正）和液體懸浮（數量校準）顆粒應用中使用 MCA-8000D 進行粒子計數。 該裝置經過校準，並通過了美國國家標準與技術研究院 (NIST) 的溯源認證。 選件 PA 套件能夠檢測 5 mV 到 10 V 的脈衝。 MCA-8000D 通常連接到粒子感測器的輸出端。 它能偵測並顯示脈衝高度光譜，使用者能夠確定特定粒度是否能產生正確的電壓。 MCA 隨附的軟體可提供峰值中心資訊（中心點和平均值計算），方便使用者確定峰值位置是否正確。MCA 經過內部校正，可將 MCA 通道刻度轉換為 mV 刻度，因此可自動加載，無需手動載入校正檔案。

功能和規格

• 可檢測 5 mV 至 10 V 脈衝
• 2 個電壓刻度：0-1 V 和 0-10 V
• 100 k 輸入阻抗
• NIST 可溯源校準
• 校正證書
• 絕對或第一峰值檢測模式（參見右圖 ）

公差

*不建議將選件 PA 套件用於標準核儀器應用

The Option PA package has been developed to facilitate the use of the MCA-8000D for particle counting in airborne (Size Calibration) and liquid suspended1 (Number Calibration) particle applications. The unit is calibrated and certified traceable to the National Institute of Standards and Technology (NIST). The Option PA package is capable of detecting pulses from 5 mV to 10 V. The MCA-8000D is typically connected to the output of a particle sensor. It detects and displays a spectrum of pulse heights allowing the user to determine if a given particle size is producing the correct voltage. The software included with the MCA provides information on the peak center (centroid and mean calculation) making it easy to determine if the peak is in the correct position. The MCA is internally calibrated to convert the MCA channel scale to a mV scale and therefore loads automatically, making it unnecessary to load calibration files manually.

Features & Specifications

• Pulse detection from 5 mV to 10 V
• 2 Voltage scales: 0-1 V and 0-10 V
• 100 k input impedance
• NIST Traceable calibration
• Certificate of calibration
• Absolute or first peak detection mode (see figure 1)
   

Tolerances​

*The Option PA Package is NOT recommended for standard nuclear instrumentation applications.