RF-1000

Radiator air flow measurement

system

RR-5000B Converter

OUTLINE

RF-1000 is the measurement system of the air flow going to an

engine radiator.

The rotation frequency of vane anemometer (vane wheel sensor)

is detected by an optical sensing system, and is converted into

an air flow with the converter for radiator anemometers.

The converter is equipped with those functions as the air flow

and frequency spectrum designation, the analog voltage output,

and the communication function (with RS232 converter +

“Wind1” software). And the air-flow data of a maximum of 64

channels can be collected with a personal computer by

connecting two or more air flow converters to a RS232

converter.

The versatile functions are realized by the dedicated

communication software “Wind1”. Those are average calculation

of air velocity, calculation of flow volume, setup functions of

measurement times, measurement interval and data recording.

Actual driving test can be conducted if whole system is loaded in

vehicle.

FEATURES

❏ Compact sensors

The thin sensors with thickness of only 10mm can be

installed at a tight space such as between a radiator and

condenser.

❏ Accurate directional measurement

The vane wheel of the meter, its axis aligned parallel to the

air flow direction, allows accurate measurement of the flow

along the perpendicular to the radiator, neglecting the flow

from the other directions. On the other hand, other types of

sensor such as thermal type or pressure type tend to

measure flow from all other directions.

❏ Low pressure loss

The pressure loss across the vane wheel is about 0.1kPa at

the velocity of 20m/s. This value is very low compared to the

pressure loss across the radiator itself.

❏ Resistant to measuring noise

The optical sensing system, by detecting optically the

number of rotations of the vane wheel, is not influenced by

the electromagnetic noises.

❏ Reverse flow measurement

Not only the air flow from the front of the vane wheel but the

air flow from the back can be measured.

❏ Communication function

The RS232 converter can collect 64 channel data with

RS-232C communication protocol.

RF-1000 SYSTEM SPECIFICATIONS

The converter for radiator anemometers

1) RR-5000B

Power supply

DC12V ± 10%, Approx. 6VA

Display

Channel display: 7seg LED, 2digits

Air flow and frequency display: 7seg LED,

5digits

Indicator: 2

Operation key

ChUp, ChDown, Shift, Inc, Ent, and Move

Setting function

Low level cut-off, Moving average, Air-flow

conversion factor, Full scale air flow, Start

channel setting, End channel setting,

Renewal cycle of indication, Instrument

address, Selection of transmission, Voltage

adjustment of analog output

Analog output

DC-5 to 5V, 8ch (Negative voltage is

outputted at the reverse flow.)

Accuracy

Frequency conversion accuracy: ±1Hz

Analog output accuracy: ±0.6% of rdg

±0.01V (Based on display value)

Communication

system

RS-485 commun

Accessories

Power cable: 1 pc., 3m

Analog output cable: 1 pc., 2.5m

Cable for RS-485: 1 pc., 5m

ication (with RS232

converter + “Wind1” software)

Vane anemometer (Vane wheel sensor)

1) RS-1050

Form

Dimension: Approx. 64mm (Projection portion

included), Five vanes

Measuring

range

0.4 to 30m/s

Accuracy

±1% of rdg + 0.05m/s (at the range of 0.4 to

20m/s)

Temperature

range

0 to 120°C (Maximum continuous operating

temperature is 100°C)

2) RS-1038

Form

Dimension: Approx. 40mm (Projection portion

included), Eight vanes

Measuring

range

0.5 to 30m/s

Accuracy

±1.5% of rdg+0.05m/s (at the range of 0.5 to

20m/s)

Temperature

range

0 to 120°C (Maximum continuous operating

temperature is 100°C)

Number of mea-

suring channel

8ch

TG-ES847-4E

May 2017

Jun 2007

5th edition

1st edition

K

K