F&J - Model DF-134 -Digital Flow Meter Low Volume Air Sampler (100- 120 VAC)
The Model DF-134 portable air sampling system with a digital flowmeter is a low-volume air sampler consisting of an oil-less, carbon vane vacuum pump, with a constant air flow regulator for use where a nearly constant air flow is desirable. The regulator holds a constant pressure drop across an in-line orifice by varying the flow through a bypass valve into the pump. This system allows the pump to work at a minimum pressure drop at all times, permitting it to run cooler, thus extending its service life. The oil-less pump requires no lubrication to maintain optimal efficiency during its service life. The pump is mounted on a base with four rubber feet. A handle is provided on the chassis to facilitate transportation.
The DF-134E Portable Air Sampling System is designed for continuous indoor use. Please consult the product specifications for the design temperature range and the installation category. Standard product displays flow rate, elapsed time and totalized volume.
The typical operating flow range is 1 to 8 CFM (28 – 226 LPM).
- Pump Type: Centrifugal blower
- Maximum Flowrate: 250 LPM - Typical FP47M glass fiber filter media
- Power Source:
- Line Power; 220VAC to 240VAC
- Optional External DC Source – 24VDC
- Maximum Current Draw: 16 A maximum
- Filter Holder Fitting: 3/8 FNPT quick disconnect
- Handle: Durable plastic
- Weight: 18 lbs. (8.2 kg)
- Dimensions: 10” × 11” × 14” (26 × 28 × 36 cm)
- Operating Temperature Range:
- 14°F to 122°F (-10°C to 50°C)
- Display: Bright LED (6 character, 1,2 cm H)
- Elapsed Time: DD:HH:MM up to 168 hours
- Flow Control: Adjustable from keypad between 30-250 LPM
- Flow Accuracy: ±4.0% of Full Scale
- Factory Settable Reference T and P
- Classical STP 0ºC, 1 ATM
- Normal T and P 20ºC, 1 ATM
- Modified Normal T and P 70ºF, 1 ATM
- Standard Ambient T and P 25ºC, 1 ATM
- OPTIONS:
- Data Storage Device (P/N: 232FCDSD)
- 2+ GB Secure Digital Card (P/N: 372239)
- Flash card Reader (P/N: SDDR-199-A20)
- Optional 24VDC connector (P/N: 24VDCOPT)
- Ruggedized Cellular Phone System (P/N: CASRPS-DFM)