Digital Air Flow Calibrators

NOTABLE FEATURES:

Flow measuring device: Venturi
Display of flow in CFM, LPM or M³/min. by operator selection (LED display)
Standard accuracy: ±2% Full Scale

Flowrates displayed are corrected to a factory settable Reference Temperature and Pressure (4 options available)

Classical STP	0° C	1 Atm
Normal T and P	20° C	1 Atm
Modified Normal T and P	70° F	1 Atm
Standard Ambient T and P	25° C	1 Atm

Display of barometric pressure in metric or English units
Display of temperature in metric or English units
Portable battery operated unit is available
Certified to UL, CSA and CE electrical safety standards by ITSNA (formerly ETL or Edison Testing Laboratories)
Ambient or Reference flow is selectable by the operator
2 year warranty

Email or Contact Us for pricing or information!

MODEL SELECTION

Standard Units

Battery Option Units

Flow Range

100-120V	230V	100-120V	230V	CFM	LPM
D-801V.2	D-801EV.2	D-802BV.2	D-802BEV.2	0.1 - 1	3 - 30
D-802V.2	D-802EV.2	D-802BV.2	D-802BEV.2	0.2 - 2	6 - 56
D-812V.2	D-812EV.2	D-812BV.2	D-812BEV.2	0.5 - 4	14 - 115
D-828V.2	D-828EV.2	D-828BV.2	D-828BEV.2	1 - 9	28-255
D-814V.2	D-814EV.2	D-814BV.2	D-814BEV.2	2 - 14	56 - 400
D-530V.2	D-530EV.2	D-530BV.2	D-530BEV.2	5 - 30	140 - 850
D-540V.2	D-540EV.2	D-540BV.2	D-540BEV.2	5 - 40	140 - 1130
D-870V.2	D-870EV.2	D-870BV.2	D-870BEV.2	8 - 70	230-1980

Options:

Battery Powered Operation (Denoted by ‘B’ in model number)

1% F.S. accuracy units available (add ‘-1’ to model number); example: D-812E-1

Actual Flow/STP Flow Display (Denoted by A/S in model number)

MEASUREMENT PRINCIPLE
1.1 Flow Sensor: Venturi Tube
1.2 Standardization: Correction for standard temperature and barometric pressure
1.3 Curve linearization: Individually calibrated and software corrected

MEASUREMENT RANGES
2.1 Air flow: See Table on front page
2.2 Temperature: -4° F - +122°F (-20°C – +50° C)
2.3 Barometric pressure: 30 – 24 In-Hg (760 – 609 mm-Hg)
approx. Sea level to 6000 ft. elevation above sea level

MEASUREMENT ACCURACY
3.1 Air flow: +/- 2% of full scale (Optional +/- 1% of full scale)
3.2 Temperature (Typical): 1°C over range -4° F - +122°F (-20°C – +50° C)
3.3 Barometric pressure: +/- 1% over measurement range

DISPLAY 6 Digit LCD 0.4" high

DISPLAYED PARAMETERS and RESOLUTIONS

Parameter Engineering Unit
Resolution

5.1 CFM Cubic feet per minute 0.01 CFM

5.2 LPM Liter per minute 0.1 or 1 LPM*

5.3 M³/m Cubic meter per minute 0.0001 M³/min

5.4 F Degree Fahrenheit 0.1 Degree F

5.5 C Degree Celsius 0.1 Degree C

5.6 In-Hg Inches of Mercury 0.01 In-Hg

5.7 mm-Hg Millimeters of Mercury 1 mm-Hg

* A 0.1 LPM resolution applies to calibrators that have a maximum flow of 900 LPM

GENERAL

6.1 Power requirements: 100–120 VAC;50/60Hz 0.3 Amps max; 220-240 VAC/50Hz

6.2 Operating temperature: -4° F - +122°F (-20°C – +50° C)

6.3 Storage temperature: -20° F - +122°F -29°C – +70° C)

6.4 Dimension (L×W×H) 9.75"×8.25"×10.75" (248×210×273mm)

6.5 Weight: 8 lbs. 6 oz. (3.8 Kgs.)

6.6 Installation Category: Pollution Degree 2

6.7 Enclosure Rating: IPXO

CALIBRATION
Factory calibration is recommended once per year

OPTIONS
8.1 RS-232 interface, including cable — All measured and calculated parameters are
accessible through an RS-232 port to a computer.
8.2 Data acquisition and processing software is available upon request.
8.3 AC input of 230V, 50Hz is available upon request at no additional charge.