| Model | 
Digital Static-Pressure Liquid Level Meter ACD-200L | 
  | 
| Brief Introduction | 
ACD-200L Digital Liquid Level Meter adopts the most advanced micro power devices and improved software technology. Its built-in lithium battery can work for 5 to 10 years. Its features of large screen LCD display window, five digits display are very eye-catching. ACD-200L is very suitable for field and laboratory use. | 
| Product Patent | 
Utility model patent certificate | 
ZL2008 2 0028605.1  《digital instrument button and display device》 | 
| ZL2009 2 0062360.9  《micro power consumption and low pressure drop sensor constant current drive circuit》 | 
| Patent for industrial design | 
ZL2008 3 0019531.0  《instruments (pressure test gauge) 》 | 
| Application | 
For the level measure of well, pond, water tower, etc | 
| For the level measure and monitoring of water conservancy and hydropower | 
| Water level measurement of urban water supply and sewage treatment | 
| Liquid level measurement and control in industrial field | 
| Liquid level measuring for all kinds of open tank, water tank and liquid tank | 
| Characteristics | 
Support liquid density modification, can be directly measured in different media | 
| Acquisition speed (0.25~10)S/A (S=second, A=acquisition ), settable freely | 
| Its development design of battery power supply, is convenient to replace the battery at any time | 
| Buttons pressed with magnetic induction pen, exempt from interference, not easy to damage | 
| Broad 5 digits LCD display, very clear for eye-catching | 
| Visual Level percentage bar chart display, easy to understand | 
| Automatic temperature compensation technology, to reduce the error in harsh environment | 
| Zero Self-Stability technology, with temperature compensation automatically, stability reliable | 
| Parameters | 
Measuring Range | 
0~1mH2O~200mH2O ( any scope within it ) | 
| Accuracy grade | 
0.05 / 0.1 / 0.2 / 0.5 | 
| Power supply mode | 
build-in one 3.6V high power lithium battery | 
| Acquisition Speed | 
(0.25~10)S/A (S=second, A=acquisition),default is 0.5 S/A, time is settable | 
| Stability performance | 
<0.1% FS per year | 
| Battery life | 
Picking rate | 
4Hz | 
2Hz | 
1Hz | 
0.5Hz | 
| Life time | 
2.8 yeas | 
5 years | 
5.5 years | 
7 years | 
| Picking rate | 
1/3Hz | 
1/4Hz | 
1/(5-10)Hz | 
| Life time | 
9 years | 
More than 10 years | 
| Operating temperature | 
-30℃~70℃ | 
| Relative humidity | 
<90% | 
| Barometric pressure | 
86-106KPa | 
| Others | 
Calibration reference operating temperature 20℃±2℃ | 
| 0.05 accuracy requires operating temperature 0-50℃ | 
| Medium Temperature | 
General temperature range | 
-40~120 ℃ | 
| Wide temperature range | 
-60~150 ℃ | 
| Display mode | 
five figures dynamic display and percentage bar chart | 
| Protection Degree | 
IP65 | 
| Explosion-proof grade | 
ExiaIICT4 Ga | 
| Overload Pressure | 
1.5-3 times of measuring range, depending on the measuring range |