台湾七泰5位數轉速量測電錶SDM-5
特性
‧ 5位數顯示（99999）
‧ 輸入範圍1，10，20，30，60，120脈波 / 1轉
‧ 誤差值 ±0.02%
‧ 小數點自動改變
‧ DIN規格96×48 mm.
詳細規格
Display.......................5 Digits (99999) 0.56〞(14.2mm), Red LED
Accuracy....................................................... ±0.02% RD. ±2 digits
Conversion rate (about)....................................................... 2~5/sec.
No input indication................................................... "000.0.0" flash
Over input indication................................................ "999.9.9" flash
Operating temp. ................................................................. 0～60℃
Storage temp. ................................................................. -10～70℃
Sensor power supply ................................... DC 12V ±10% 30mA
Temp. coefficient ........≦100PPM/℃(≦60PPM/℃, 25℃±10℃)
Max. relative humidity ............................................................. 95%
Dielectric strength .................. AC 2 KV/1 min. (input/power/case)
Surge test ...........................................4 KV/1.2×50μs, IEC 255-4
Aux. power ............................... AC 115V/230V ±10%, 50/60 Hz
DC 24V, 48V, 110V, ±20% (option)
Power consumption ........................................ AC 3.5VA, DC 3W
Weight (about) ....................................................................... 350g
腳位連接圖
開孔尺寸 (單位：釐米)