Mesalabs Defender 530+ L Primary Flow Calibrator (5 – 500 sccm, Low Flow)

Defender 530+ L – Low Flow

Flow range: 5 – 500 sccm

Volumetric accuracy: 0.75%

Standardized accuracy: 1%

User-selectable measurement units

Volumetric flow: mL/min, L/min, cc/min, L/d, cfm

Standardized flow: smL/min, sL/min, scc/min, scf/min

Temperature: °C, °F

Pressure: mmHg, PSI, kPa

Measurement accuracy

Pressure: ± 3.5 mmHg (typical), ± 7.0 mm (max)

Temperature: ± 0.8 °C (typical), ± 1.3 °C (max)

Approximate time per reading: 1 – 15 seconds

Reading modes (with averaging function, user-selectable from 1–100 measurements): Single (manual), continuous or burst

Gas compatibility: Non-corrosive, non-condensing, humidity < 70%

Flow modes: Pressure or suction

Measurement cell style: Integrated

Power supply / charger: 12 VDC, >250 mA, 2.5 mm center positive

Battery: 6V rechargeable sealed lead-acid, typical operation time 6–8 hours

Battery operational time (5 cycles/min): 3 hours (backlight on), 8 hours (backlight off)

Pressure and suction fittings: 1/4” ID Swagelok® compression fittings; 3/8” fittings for High version

Storage temperature: 0 – 70°C

Ambient humidity: 0 – 70% RH, non-condensing

Operating pressure (absolute): Atmospheric, 15 PSI max

Display: Backlit graphical LCD

Data port (PC interface): Serial (RS-232)

Data cable: 1 meter (included)

Protective case: Pelican case available

Dimensions (H × W × D): 140 × 150 × 75 mm

Weight: 820 g

Datasheet