BIOS Model Defender 520 Medium Flow Monthly Rental

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$180 monthly/$60 weekly

  • DRYCAL Technology (no soap required)
  • 50-5,000mL/min Flow Range
  • Three modes of measurement - Single (manual), Continuous or Burst
  • Enhanced Volumetric Primary Flow Standard
  • Volumetric Accuracy +/- 1%
  • User selectable Measurement Units
  • In Line Temp/Pressure Sensor

Approximate Time per reading:
1-15 seconds

Reading Styles (with averaging function user-selectable from 1 to 100 measurements):
Single (manual), Continuous or Burst

User selectable Measurement Units Volumetric:
mL/min, L/min, cc/min, cf/min

°C °F

 mmHg, PSI, kPa
(Temperature and Pressure Sensor in Flow Stream)

Gas Compatibility:
non-corrosive gases, non-condensing, less than 70% humidity

Flow Modes:
Pressure or Suction

Measurement Cell Style:

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 hours backlight on, 8 hours backlight off

Pressure and Suction Fittings:
1/4" ID Hose Bar

Storage Temperature:

Ambient Humidity:
0-70°, non-condensing

Operating Pressure (Absolute):
15 PSI

backlit graphical LCD

Data Port (for use with Optimizer Software):
Serial - RS-232

Data Cable (for use with Optimizer Software):
1 meter

Dimensions (H x W x D):
5.5" x 6" x 3" / 140 x 150 x 75 mm

29 oz / 820 g

RoHS- and CE-compliant