CALIBRATORS AND ACCESSORIES

Defender Series Calibrators

Accurate, reliable and portable primary calibrators for the fast calibration of air sampling pumps. 

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  • Specifications
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Turn the Defender on. Connect it to your pump. Take measurements. It’s that simple. Instantly calibrate your gas flow using Quick Start – there is no preparation involved, no messy soap bubble solutions. Defender’s many user-selectable options makes customizing your calibrations easy, giving you exactly what you need in the format you prefer. All you have to do is choose between the 510, the 520 or the 530.

Backed by Proven DryCal® Technology for fast,1% of reading calibrations of personal sampling pumps, the Defender 510, the enhanced Defender 520, and the standardising Defender 530, give you the flexibility to do as much as you need while you work to defend lives.

For use with non-corrosive, non-condensing, non-combustible gases, less than 70% humidity.

3 Models, 3 Flow Standards 

Defender 510 | Volumetric Primary Flow Standard

  • Flow Range:
    • Low:  5-500ccm
    • Medium:  50-5,000ccm
    • High:  300-30,000ccm
  • Single, Continuous and Burst reading options
  • Accuracy Volumetric (% of reading) 1%
  • Volumetric Flow Readings – mL/min, L/min, cc/min, cf/min
  • Data Port: Serial (RS-232)
  • 1/4” Barbed Plastic Compression Fittings

Defender 520 | Enhanced Volumetric Primary Flow Standard

  • Flow Range:
    • Low:  5-500ccm
    • Medium:  50-5,000ccm
    • High:  300-30,000ccm
  • Single, Continuous and Burst reading options
  • Accuracy Volumetric (% of reading) 1%
  • Temperature & Pressure Sensors in flow stream
  • Temperature Readings: C°, F°
  • Pressure Readings: mmHg, PSI, kPa
  • Volumetric Flow Readings – mL/min, L/min, cc/min, cf/min
  • Data Port: Serial (RS-232)
  • 1/4” Barbed Plastic Compression Fittings
Defender 530 | Standardised and Volumetric Primary Flow Standard
  • Flow Range:
    • Low:  5-500ccm
    • Medium:  50-5,000ccm
    • High:  300-30,000ccm
  • Single, Continuous and Burst reading options
  • Accuracy Volumetric (% of reading) 1%
  • Accuracy Standardised (% of Reading) 1.2%
  • Temperature & Pressure Sensors in flow stream
  • Temperature Readings: C°, F°
  • Pressure Readings: mmHg, PSI, kPa
  • Volumetric Flow Readings – mL/min, L/min, cc/min, cf/min
  • Standard Flow Readings – smL/min, sL/min, sccm, scf/min
  • Data Port: Serial (RS-232)
  • 1/4” Barbed Plastic Compression Fittings
Defender 500 Series
Approximate Timer Per Reading
1-15 seconds
Reading Styles
(with averaging function user-selectable from 1 to 100 measurements)
Single (manual), Continuous or Burst
Gas Compatibility Non-corrosive gases, non-condesing less than 70% humidity
Flow Modes Pressure or Suction
Measurement Cell Style Integrated
AC Adapter/Charger 12V DC, > 250ma, 2.5mm centre 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 yr (battery 6 months)
Storage Temperature
0-70°C 
Ambient Humidity 0-70%, non-condensing
Operating Pressure (absolute) Atmospheric, max 15 PSIA
Display
Backlit graphical LCD
Data Port (for PC interface) 1 metre Defender to PC included
Protective Case Pelican case available
Dimensions (H x W x D) 140 x 140 x 75mm
Weight 820g
Complaince RoHS
CE Compliant
  Defender 510 Defender 520 Defender 530
Model and Flow Ranges 510L, 5-550ccm
510M, 50-5000 ccm
510H, 300-30,000 ccm
520L, 5-500 ccm
520M, 50-5000 ccm
520H, 300-30,000 ccm
530L, 5-500ccm
530M, 50-5000 ccm
530H, 300-30,000 ccm
Volumetric Accuracy 1% 1% 1%
Standardised Accuracy n/a n/a 1.2%
User Selectable Measurement Units Volumetric mL/min, L/min, cc/min, cf/min mL/min, L/min, cc/min, cf/min mL/min, L/min, cc/min, cf/min
Standardised n/a n/a smL/min, sL/min, scc/min, scf/min
Temperature n/a °C, °F °C, °F
Pressure n/a mmHg, PSI, kPa mmHg, PSI, kPa
Temperature and Pressure Sensor No Yes, in flow stream Yes, in flow stream
Pressure Accuracy n/a +/- 3.5mmHG (typical)
+/- 7.0 mm (max)
+/- 3.5mmHG (typical)
+/- 7.0 mm (max)
Temperature Accuracy n/a +/- 0.8°C (typical)
+/- 1.3°C (max)
+/- 0.8°C (typical)
+/- 1.3°C (max)