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数字流量校准器Defender 520H 300-30000ml/min
流量校准器Defender 510/520 仪器介绍：
Defender 510/520是新一代的干式气体流量计，它是一级流量计，并被众多的个体采样泵厂商推荐和配套使用。可用于工业卫生、环保领域和各类实验室。它采用干式活塞运动的原理，一次按键即可产生连续多个读数。与传统的泡沫式流量计相比，使用更加方便快速。520型号比510增加了同时测试温度和压力的功能。
流量校准器Defender 510/520 主要特点：
流量校准器Defender 510/520 采购信息：
流量校准器Defender 510/520 技术参数：
| Flow Ranges | Low（L）5 mL–500 mL/min Medium（M）50 mL–5,000 mL/min High（H）300 mL–30,000 mL/min |
| Accuracy | 1%Volumetric |
| Size | Small enough to fit easily in your hand; slim enough to slide into a briefcase or tote |
| Weight | 29 oz/820 g |
| Dimensions（H x W x D） | 5.5 x 6 x 3 in/140 x 150 x 75 mm |
| User-Selectable Measurement Units | |
| Volumetric Flow | mL/min L/min cc/min cf/min |
| Pressure（Defender 520 only） | mmHg PSI kPa |
| Temperature（Defender 520 only） | ℃℉ |
| Defender 500 Series Specifications | |
| Approximate Time per Reading | 1–15 seconds |
| Gas Compatibility | Use with non-corrosive,non-condensing, non-combustible gases,less than 70%humidit |
| Flow Modes | Suction or Pressure |
| Measurement Cell Style | Integrated |
| Temperature and Pressure Sensors | In the flow stream Press.:3.5 mmHg（typical）,7.0 mm（max）; Temp.:0.8°C（typical）,1.3°C（max） |
| Reading Styles | Single（manual）,Continuous or Burst, with averaging function user-selectable from 1 to 100 measurements |
| AC Adapter/Charger | 12V DC,>250ma,2.5 mm,center positive |
| Battery System | 6V rechargeable,sealed lead-acid, 6–8 hrs typical operation |
| Battery Operational Time（5 cycles/min） | 3 hrs backlight on,8 hrs backlight off |
| Pressure and Suction Fittings | 1/4"ID Hose Barb |
| Warranty | 1 year;battery 6 months |
| Storage Temperature | 0-70℃ |
| Ambient Humidity | 0-70%,non-condensing |
| Operating Pressure（Absolute） | 15 PSI |
| Display | Backlit graphical LCD |
| Data Port（for use with Optimizer software） | Serial （RS-232） |
| Data Cable（for use with Optimizer software） | 1 meter（Defender Data Port to PC serial port） |
| Protective Case | Soft side or Pelican case available |
| RoHS-and CE-compliant | |
