Rixen VF-5204 Manuale utente

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VF-5200 series Anemometer/Differential Manometer

Instruction Manual

Anemometer measurements forAir Velocity, Air Flow and Wind Pressure.

Manometer (Differential Pressure) Measurements.

VF-5204 (Micro Pressure) : Air Velocity 0~100m/s, Differential Pressure 70mbar

VF-5205 (High Pressure) : Air Velocity 0~400m/s, Differential Pressure 1000mbar

A. Specifications

Model No.

VF-5204 (Micro Pressure)

VF-5205 (High Pressure)

Measuring Range

Please refer the following table A.

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)

Measurement Unit

Area : ft²、m²Temperature : °C、°F Air Flow : CFM、CMM

Air Velocity : m/s、FPM(ft/min)、Km/h、Knots、MPH

Differential Pressure : Pa、PSI、mbar、bar、mmH2O、inH2O、mmHg、inHg

Media Compatibility

Dry air or non-corrosive gases and liquids

Display

Digital LCD display : Differential Pressure、Air Velocity、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)

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

150(L) × 75(W) × 28(D)mm (5.91 × 2.96 × 1.11 inches), Not including the pressure hose connector

Weight

Approx. 250g (without battery)

Approvals

RoHS, CE, IP65

※When you connect with the Pitot tube to measure the Air Velocity, The Min. Reading is:

VF-5204 (Micro Pressure) : 1.2m/s = 236FPM = 4.32Km/h = 2.33Knots = 2.68MPH

VF-5205 (High Pressure) : 4.0m/s = 780FPM = 14.4Km/h = 7.7Knots = 8.9MPH

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Measurement Range (Table A)

B. Instrument Description

○

1LCD display ○

8AC Adaptor input

○

2Data Hold and Function buttons ○

9USB output

○

3Save/confirm and Measurement Unit buttons ○

10 RS-232 output

○

4Adjustment button ○

11 Pressure terminal (+) (○

12 connect with atmosphere)

○

5Adjustment button ○

12 Pressure terminal (-) (○

11 connect with atmosphere)

○

6Model number and serial number ○

13 Power on/off

○

7Battery cover

※To keep the instrument functions steadily, please avoid dropping, impacting or disassembling.

C. Display Description ※MMA is MAX、MIN、AVG.

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Display

Description

Battery power indicator

Manual shutdown indicator

Data hold indicator

Differential Pressure indicator

Air Velocity indicator

Air Flow indicator

Adjustment indicator

Setup mode indicator

Units of measure for Air Velocity and Air Flow；

Including m/s、ft/min、Km/h 、Knots、MPH、CFM、CMM。

Units of measure for Pressure；Including Pa、PSI、mbar、bar、mmH2O、inH2O、mmHg、inHg。

Magnification indicator

Region A

Measurement display：Measurement value、Magnification value

Measurement display：unit (for setting the unit of measurement value)

Region B

Measurement display：Area value、Temperature value、MMA value

Measurement display：unit (for setting the unit of temperature)

Maximum positive pressure

Maximum negative pressure

Average value

Measurement value and MMA value * 100

Area unit indicator；Including m2、ft²。

Temperature unit indicator；Including℃、℉。

D. Key Description ※When you turn off the instrument and start again, it will revolve to the initial setting.

Key

Function

Description

LCD display

Save (Confirm)

Press the button to complete the all of setting, and turn to measurement mode.

Unit

On the measurement mode, press the and button and hold 3 second, enter

the setting mode for differential pressure, air velocity or air flow.

On the measurement mode, press the and button and hold 3 second, enter

the setting mode for temperature and area.

----

Data Hold

On the measurement mode, press the button to enter the data hold mode.

Function

On the measurement mode, press the and button and hold 3 second, enter

the setting mode for fine adjustment or zeroing.

On the measurement mode, press the and button and hold 3 second, enter

the setting mode for magnification.

----

Back-light

On the measurement mode, press and simultaneously to start back light.

About 30 second to close the back light.

----

Adjustment

On the hold mode, press to select the MAX, MIN andAVG.

Press the again, turn to the measurement mode and delete the record.

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On the setting mode of differential pressure, air velocity or air flow, press the

or to select the differential pressure unit, air velocity unit or air flow unit.

Press the and simultaneously to change the differential pressure, air

velocity or air flow.

On the setting mode of temperature and area, press the to change the

temperature unit, press the to change the area unit.

On the setting mode of fine adjustment and zeroing, press the to adjust ”+1”,

press the to adjust ”-1”. Press and simultaneously to zeroing, then turn

to the measurement mode.

On the setting mode of magnification, press the to ”+1” the digit, press the

to ”-1” the digit. Press and simultaneously to select the digit.

On the measurement mode, you can adjust the area if you select the “CMM”or

“CFM”unit. Press the to ”+1” the digit, Press the to ”-1” the digit, press

the to select the digit. (On the CMM or CFM unit, the temperature will not show.)

Power

On the shutdown condition, press the into the auto shutdown mode. Press the

and hold, then press the , LCD will shows the , unloose the and

, enter to the manual shutdown mode. Press the and hold one second,

LCD will shows “OFF”, unloose the , power off.

E. Operating Instructions

On the measurement mode, press to enter the any mode. (Refer the “D. Key Description”)

E-1 Measurement Mode :

On the “FLOW” indicator, if you select the ”CMM” or ”CFM” unit, region B will be changed from temperature value to area value.

E-1-1 Adjustment Area :

On the measurement mode, select the ”CMM” or ”CFM” unit, region B shows the area value. Press the , digit +1, press

the , digit -1. Press the to select the digit. Region Awill be transformed based on the adjusted area.

※The initial area is 00.01ft², maximum is 99.99 ft², minimum is 00.01ft². m²on this LCD is 0.0929* ft². Select digits will twinkle.

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E-2 Data Hold Mode :

On the measurement mode, press the to hold the data, press the to select the MMA. Press the again, turn to the

measurement mode and delete the record.

※MMA is MAX、MIN、AVG.

E-3 Power off :

On the shutdown condition, press the to turn on and into the auto shutdown mode. If the instrument is left without any

button operation, it will automatically turns off after 8 minutes. Press the and hold to power on, when the LCD shows

the , unloose the , will entry manual shutdown mode. Press the and hold again, when the LCD shows “OFF”,

unloose the to turn off. (If you unloose the before the “OFF”, the shutdown will fail.)

E-4 Setting Mode :

On the measurement mode, press the and hold, then press the or into the setting mode differential pressure, air velocity,

air flow, temperature or area. Press the and hold, then press the or into the setting mode for fine adjustment, zeroing or

magnification. On the setting mode, press the to save the settings and turn to the measurement mode.

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E-4-1 Exchange the differential pressure, air velocity and air flow :

On the differential pressure, air velocity and air flow, press the or to select the units. Press the and

simultaneously to exchange the differential pressure, air velocity and air flow. Press the to turn to the measuring mode.

※On the differential pressure and air velocity, the LCD will shows the point.

E-4-2 Setting Mode :

E-4-2 Unit of Temperature and area :

On the temperature and area mode, press the to select the temperature unit, press the to select the area unit, then press

the to turn to the measurement mode.

※On the temperature indicator, the LCD will shows the point.

E-4-3 Fine adjustment and zeroing :

On the fine adjustment and zeroing mode, press the or to adjust the pressure value, then press the to turn to the

measurement mode. If you press the and simultaneously, the pressure will zeroing, then turn to the measuring mode.

- 7 -

E-4-4 Magnification :

On the magnification mode, press the or to adjust the digit. If you press the and simultaneously to select the

digit. Press the to turn to the measurement mode.

※The initial magnification is 100.00%, maximum is 200.00%, minimum is 0.01%. Select digits will twinkle.

F. RS-232 transfer protocol

RS-232 the transmission end is one way transfer via the three wires (touch ground) to input and output.

Using the original transmission line or cable under 10m is recommended.

Baud rate: 57600

Transfer status: / 8 / N / 1

Transfer content: (8BIT)

Read Holding Registers by Function 03H

F-1 Request Data Frame

Read the pressure, temperature and parameter.

Slave

address

Function

Starting

address

Starting

address

No. of Byte

CRC

11H

03H

00H

06H

C7H

58H

F-2 Response Data Frame

Response value = 11-Byte (includes the position command CRC)

Slave address

Function

Byte count

Data-Pre【15:8】

Data-Pre 【7:0】

11H

03H

06H

01H

2CH

Data-Tem【15:8】

Data-Tem【7:0】

Data-Par【15:8】

Data-Par【7:0】

CRC Lo

CRC Hi

00H

FAH

00H

00H(10H)

5CH

93H

Data-Pre【15:0】is A value 0 x 012C = 300 (the real value needs to refer the parameter)

Data-Tem【15:0】is B value 0 x 00FA = 250 (the real value needs to refer the parameter)(no any function in “FLOW”unit)

【3:0】is considered as low pressure and wind pressure

>>>> 0000 is pa (the real value is 300) >>>> 0100 is mmH2O (the real value is 30.0)

>>>> 0001 is PSI (the real value is 0.0300) >>>> 0101 is inH2O (the real value is 0.300)

>>>> 0010 is mbar (the real value is 3.00) >>>> 0110 is mmHg (the real value is 3.00)

>>>> 0011 is bar (the real value is 0.0300) >>>> 0111 is inHg (the real value is 0.0300)

>>>> 1000 is m/s (the real value is 30.0) >>>> 1100 is MPH (the real value is 3.00)

>>>> 1001 is ft/min (the real value is 300) >>>> 1101 is CMM (the real value is 300)

>>>> 1010 is km/h (the real value is 30.0) >>>> 1110 is CFM (the real value is 300)

>>>> 1011 is knots (the real value is 3.00)

【3:0】is considered as high pressure and wind pressure

>>>> 0000 is pa (the real value is 30.0) >>>> 0100 is mmH2O (the real value is 300)

>>>> 0001 is PSI (the real value is 0.300) >>>> 0101 is inH2O (the real value is 30.0)

>>>> 0010 is mbar (the real value is 30.0) >>>> 0110 is mmHg (the real value is 30.0)

>>>> 0011 is bar (the real value is 0.300) >>>> 0111 is inHg (the real value is 0.300)

>>>> 1000 is m/s (the real value is 30.0) >>>> 1100 is MPH (the real value is 30.0)

>>>> 1001 is ft/min (the real value is 30.0) >>>> 1101 is CMM (the real value is 300)

>>>> 1010 is km/h (the real value is 30.0) >>>> 1110 is CFM (the real value is 300)

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>>>> 1011 is knots (the real value is 30.00)

【4】is considered as digit*100

>>>> 1 is *100 >>>> 0 is 0*100

【7:5】is considered as B value

>>>> 000 is ℃(the real value is 25.0) >>>> 001 is ˚F (the real value is 25.0)

The reading is 300pa 25℃(the above is the low pressure.) / The reading is 3000pa 25℃(the above is the high pressure.)

F-3 Response Data Frame

Response value = 11-Byte (includes the position command CRC)

Slave address

Function

Byte count

Data-Pre【15:8】

Data-Pre【7:0】

11H

03H

06H

FFH

81H

Data-Tem【15:8】

Data-Tem【7:0】

Data-Par【15:8】

Data-Par【7:0】

CRC Lo

CRC Hi

02H

C4H

00H

28H

84H

FFH

Data-Pre【15:0】isA value 0 x 1A79 = 6777 (the real value needs to refer the parameter)

Data-Tem【15:0】is B value 0 x 1A79 = 6777 (the real value needs to refer the parameter)

Data-Par【15:0】is parameter value 0 x 009E = 1001 1110 ---【15:8】no value

The reading is -12.7m/s 70.8 ˚F

F-4 Response Data Frame

Response value = 11-Byte (includes the position command CRC)

Slave address

Function

Byte count

Data-Pre【15:8】

Data-Pre【7:0】

11H

03H

06H

1AH

79H

Data-Tem【15:8】

Data-Tem【7:0】

Data-Par【15:8】

Data-Par【7:0】

CRC Lo

CRC Hi

XXH

00H

9EH

84H

FFH

Data-Pre【15:0】isA value 0 x 1A79 = 6777 (the real value needs to refer the parameter)

Data-Tem【15:0】is random number without reference value.

Data-Par【15:0】is parameter value 003E = 0011 1110 ---【15:8】no value

The reading is 6777*100CFM.

F-5 Conversions and Formulas

1pa=0.000145psi=0.01mbar=0.00001bar=0.1019716mmH2O=0.00401inH2O=

0.0075mmHg=0.0002953inHg

1m/s=196.85ft/min=3.6km/hr=1.944knots=2.237MPH

CMM=m3/min CFM=ft3/min 1ft=0.3048m

G. Precautions

1. This instrument must only be operated within its specifications, or it will be damaged.

2. This instrument has waterproof and dustproof function; please do not use it in a high temperature environment or with

corrosive materials to avoid leakage or damage.

3. On the measuring wind pressure, wind speed and temperature, because the unstable temperature environment or tube

pressure, please multiple sampling or extend the capturing for the signal interval.

4. Use the original pitot tube is suggested for the more accurate measuring value.

5. When the instrument is not use for a long time, please keep it and the all accessories in a dry environment, also please avoid

direct sunlight.

6. If there are any operation questions or malfunction, please contact your local distributor or our service department.

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