UMEF型號採用微處理型基礎設計,專門設計為用於製程系統的直流量測,特點有 :具有寬規標准的直流電壓輸入高達10伏特與直流電壓輸入範圍如0-20mA,0-40mA或0-10V等。具壓鈕按鍵用於顯示比例,以適應所需的工程單位範圍從0到±19999單位。
- 真實轉換的直流比例監視器
- 寬範圍的直流電壓輸入與電流輸入
- 適用於工程單位的顯示比例範圍
- 精度高達0.2%
- 兩線式運用
- 4-1/2位顯示,最大值可到19999
- 高亮度顯示幕的LED顯示
- Accuracy (23 + 3℃) : 0.2% fs
- Stability : Temperature coefficient < 50 ppm per degree C. Long term draft < 0.1% per year
- Display & resolution : Maximum 19999 counts of 4-1/2 digits. 0.56” super rate LED
- Response time : Sample rate 1 sec typically
- Input resistance : > 1MΩ for voltage input, < 20Ω for current input
- Input over : Maximum 1 ampere for current input, maximum 250V for voltage input
- Noise rejection : CMRR > 120dB, NMRR > 100dB
- Common mode voltage : 2kV rms / 1 minute
- Temperature condition :
- Operating range -10 to 55℃, 0 to 99% RH non-condensed
- Storage range -25 to 70℃, 20-99% RH non-condensed
- Auxiliary power : AC / DC version < 3.5VA, DC option version ±20% < 5 watts