SDM-55位數(shù)轉(zhuǎn)速量測電表
特性:
1、5位數(shù)顯示(99999);
2、輸入范圍1,10,20,30,60,120脈波 / 1轉(zhuǎn);
3、誤差值 ±0.02%;
4、小數(shù)點(diǎn)自動改變;
5、DIN規(guī)格96×48 mm;
詳細(xì)規(guī)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