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：

• 采用干式活塞原理，使用简单方便
• 流量精确控制，经过ISO17025认证
• 结构紧凑
• 宽大显示屏幕
• 每组读数高达100个
• 可内置温度、压力传感器，优化测试结果(520系列)

流量校准器Defender 510/520 采购信息：

• Bios Defender 510L Low Flow 5-500ml/min                  
• Bios Defender 510M Medium Flow 50-5000ml/min        
• Bios Defender 510H High Flow 300-30000ml/min          

• Bios Defender 520L Low Flow 5-500ml/min                 
• Bios Defender 520M Medium Flow 50-5000ml/min       
• Bios Defender 520H High Flow 300-30000ml/min         

流量校准器Defender 510/520 技术参数：

Bios Defender 510 - 520 Specifications
Size	5.5"H x 6"W x 3"D 140 mm x 150 mm x 75 mm
Weight	29 oz. / 820 g
Flow Ranges
DryCal Defender Low (L) Flow:	5 to 500 mL/min
DryCal  Defender Medium (M) Flow:	50 - 5,000 mL/min
DryCal Defender High (H) Flow:	300 - 30,000 ml/min
Accuracy
Volumetric (Defender 510 or 520)	±1.0%
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)	ºC, ºF
Approximate Time per Reading	1-15 seconds
Gas Compatibility	Use with non-corrosive, non-condensing, non-combustible gases, less than 70% humidity
Flow Modes	Suction or Pressure
Measurement Cell Style	Integrated
Temperature & 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	12 DC, >250 ma, 2.5 mm, center positive
Battery System	6V rechargeable, sealed lead-acid, 6-8 hours typical operation
Battery Operational Time	(5 cycles/min), 3 hours backlight on, 8 hours backlight off
Pressure & Suction Fittings	¼” ID Hose Barb
Warranty	Instrument: 1 year, Battery: 6 months
Storage Temperature	0-70 °C
Ambient Humidity	0-70% - non-condensing
Operating Pressure	(Absolute) 15 PSI
Display	Backlit graphical LCD
Data Port	Serial RS-232 (for use with Optimizer Collect software)
Data Cable	1 meter (Defender Data Port to PC Serial Port)
Protective Case	Soft side or Pelican case available
Laboratory Accreditation	Backed by ISO 17025 accreditation by NVLAP of NIST
Instrument Certification	RoHS and CE Compliant
Bios Defender 500 Kit Includes:  One flow cell, Bios Optimizer 110 PC Serial Cable, Software CD, AC Power Adapter/Charger, Plastic Leak Test Caps (2), NIST-Traceable Calibration Certificate and Mini-Manual.