RIXEN – Pitot Tube Air Velocity / Flow / Differential Manometer
Brand: Rixen – Taiwan
Model: VF-5204, VF-5204⁺, VF-5205, VF-5205<sup>+


4 Different Model:</sup> 
VF-5204 (Low Pressure Type) 0~±70mbar
VF-5205 (High Pressure Type) 0~±1000mbar
VF-5204+ (Low Air Velocity／Flow／Differential Manometer)
VF-5205+ (High Air Velocity／Flow／Differential Manometer)



Measurement Range Tables:

		Air Velocity (via Pitot tube)                                    Air Flow						Temperature
Model No.	m/s	FPM/(ft/min)	Km/h	Knots	MPH	CFM	CMM	o C	o F
VF-5204+	105	20,670	378	204.10	234.90	2,066,793	58,525	0~+60	+32~140
VF-5205+	400	78,730	1,440	777.60	894.80	3,276,000	227,300
		Pressure (Differential Pressure)
Model No.	mba	Pa	PSI	Bar	mmH2O	inH2O	mmHg	inHg	Max.Pressure
VF-5204	70	7,000	1.00	0.07	714	28.07	52.50	2.07	12.60PSI
VF-5205	1,000	100,000	14.50	1.00	10,200	401.50	750.00	29.53	21.75PSI

 

Units Conversion Tables:

	Pa	Kpa	mbar	mmH2O	mmHg	inH2O	PSI
Pa	1	0.001	0.01	0.10197	0.007501	0.004016	0.000145
Kpa	1000	1	10	101.9716	7.501	4.016	0.145
mbar	100	0.1	1	10.1972	0.7501	0.4016	0.0145
mmH2O	9.807	0.009807	0.09807	1	0.0734	0.0394	0.001422
mmHg	133.3	0.1333	1.333	13.62	1	0.5362	0.0193
inH2O	249.1	0.2491	2.491	25.4	1.865	1	0.0361
PSI	6895	6.895	68.948	704.3	51.71	27.73	1

 

Technical Specification:

Model No.                                           VF-5204 / VF-5204+                                                         VF-5205 / VF-5205+
Measuring Range	Please refer the above Measurement Range Table.
Resolution	Area : 00.01ft²/0.001m² * Air Flow : 1CFM/1CMM Temperature : 0.1°C (0.1°F) Air Velocity : 0.1m/s,1FPM, 0.01Km/h, 0.01Knots, 0.01MPH Differential Pressure : 1Pa, ±0.0001PSI, ±0.01mbar, 0.0001bar, 0.01mmH2O, 0.001inH2O, 0.001mmHg, 0.0001inHg	Area : 00.01ft²/0.001m² * Air Flow : 1CFM/1CMM Temperature : 0.1°C (0.1°F) Air Velocity : 0.1m/s, 1FPM, 0.1Km/h, 0.1Knots, 0.1MPH Differential Pressure : 10Pa, ±0.001PSI, ±0.1mbar, 0.001bar, 1mmH2O, 0.1inH2O, 0.1mmHg, 0.001inHg
Accuracy (at 25°C)	±0.25% F.S, TEB<1%  *TEB : Total Error Band
Area Setting *	Max. 9.289m² / 99.99ft²  (For Air Flow measurement)  *Area : Pipeline Cross - sectional area.
Measurement Unit	Pipeline Cross - sectional area : ft², m² Temperature : °C, °F Air Flow : CFM, CMM (VF-5204+ / VF-5205+) Air Velocity : m/s, FPM(ft/min), Km/h, Knots, MPH (VF-5204+ / VF-5205+) Differential Pressure : Pa, PSI, mbar, bar, mmH2O, inH2O, mmHg, inHg
Media Compatibility	Dry air or non-corrosive gases and liquids
Display Functions	Digital LCD display : Differential Pressure, Air Velocity, Air Flow, Temp., Measurement Unit
Sampling Rate	Approx. 0.5 sec.
Output Signal	Digital Output : RS-232 / Modbus RTU protocol (Differential Pressure, Air Flow, Air Velocity, Temp., Max., Min., Avg. simultaneously)
Temp. compensation	0~+60°C (+32°F ~ +140°F) Auto.
Main Functions	IP65 water and dust proof, Air Flow/Air Velocity/Wind Pressure measurements, Fine ZERO & SPAN adjustments, ZERO setting, Max./Min./Avg. values, Data hold, Switchable°C/°F, USB/RS-232 output, LED back-light, Auto/Manual shutdown, Fine Area adjustment
Baud Rate	57600
Operating Environment	-10 ~ +60°C (+14 ~ 140°F), 0~95%RH non-condensing
Power Supply	One 9 V battery or AC Adaptor (option)
Dimensions / Weight	150(L) × 75(W) × 28(D)mm (5.91 × 2.96 × 1.11 inches), Not including the pressure hose connector Approx. 250g (battery included)
Approvals	RoHS, CE, IP65
Standard Accessories	Instrument (VF-5204 or VF-5205), Battery, Pouch case, Operation manual
+ Plus Accessories	Instrument (VF-5204+ or VF-5205+), Pitot tube (160-12), Silicon tube (1M), Battery, Plastic carrying case, Operation manual