DF-100 Digital Flowmeter Low Volume AS

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MODEL DF100 PORTABLE DIGITAL FLOWMETER KIT
FOR ENVIRONMENTAL SYTLE AIR SAMPLERSMODEL DF100

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Notable Features
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* Display in English or metric units set at factory
* Multiple on-board calculations with display
FLOW VOLUME
scc/m SCC
SLPM SL
sm^3/h sm^3
SCFM SCF
* Microprocessor controlled electronics
* Flow rate measurement and volume corrected to STP
* Elapsed Time Meter
* RS-232 communications port
* Auto zero calibration feature of flow sensor
* Bright LED display
* Flow rate accuracy within ± 4% of full scale
* DF-100 110 - 120VAC, 50/60Hz; single phase

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General Description
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The DF100 Series portable flowmeter upgrade kits are designed to upgrade existing air
sampling systems. The DF100 units are connected in line between the pump inlet and the
filter holder. The DF100 Series upgrade eliminates the need to engage in expensive
conversions of equipment or the need to purchase new air sampling systems.

The typical operating flow ranges vary from 1 CFM to 25 CFM (30 - 710 LPM).

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Specifications
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Flow Range Available Model Flow Range
100-120 VAC (CFM) (LPM)
DF100-01 0.1 - 1 3 - 30
DF100-02 0.2 - 2 6 - 60
DF100-04 0.5 - 4 14 - 115
DF100-09 1 - 9 30 - 255
DF100-14 2 - 14 56 - 400
DF100-25 3 - 25 85 - 710

Power Requirements 110 - 120 VAC, 47-63 Hz; 0.3 amperes maximum

Fuse Protection (for plugged in sample): 8 amp, slow blow

Electrical Cord: 3 wire, 1 gauge

Dimensions: 8" L x 8" W x 12" H.
(20.3cm × 20.3 cm ×30.5 cm)

Weight: 4.1 lbs. (1864 gms.)

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Electronic Specifications
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Measurement Accuracy Air flow ± 4% of full scale
Temperature ± 2º F (1.1º C)
Barometric Pressure 2% over measured range

Operating Temperatures 32º to 122º F (0º to 50º C)

Storage Temperature 32º to 158º F (0º to 70º C)

Calibration Factory calibration 1 per year

Communications Interface RS-232 (comma delimited text file)

Display: LED; 6 character

On-Board Calculations: - Flow calculation from differential pressure value using
best-fit curve method.
- Flow correction for standard temperature and pressure
- Auto-zero correction utilizing electro-pneumatic method to
compensate for offset and drift (automatic once every
minute).

Air Samplers

AS Digital Flowmeter Low Volume-110 V

F&J SPECIALTY PRODUCTS, INC.