1.flow meter,conversion of high accuracy, good linearity
2.A good temperature stability component
3.Small low-frequency jitter

 <1>Smith8002 current sine wave converter will exchange or rectangular wave frequency signal or contact switch  signal to convert linear 4-20mA DC signals into the system to automatically adjust, as a regulator of the input signal or instructions to record instruments, to show that the

instantaneous value.

<2>Work Principle

Flow meter Originator-issued proportional to the frequency of signal flow, the ability of anti-segregation circuits and optoelectronic-stable plastic circuit, by the rules of rectangular waveform wave, waveform width very stable, the frequency - voltage conversion, and the credit conversion circuit, such as release of 4 ~20mA or 1 ~5 V DC output signal.

 <3>Feature

1, By F-V converter integrated circuit, conversion of high accuracy, good linearity.
2, A good temperature stability components, apparatus, high accuracy.
3, Small low-frequency jitter.
4, Inputs strong function.
5, Smith8002A four-line system, Smith8002B of the two-line system.

<4>Technical parameters

1, the input signal: voltage pulse signal, the rate 3 V (PP) over 0-10 KMZ2 frequency, the output analog signal: 4 ~ 20mA Dc, or 1 ~ 5 V DC.
3, the two-wire and four-wire system
4, accuracy class: 0.001% of the output pulse synchronous 4 ~ 20mA output 0.2%
5, load resistance: 4 ~ 20mA DC current output, it is about 500 Ω (constant current output).
6, the transmission distance: input signal cables Resistance less than 50Ω.
7, the largest current work:  0.2A.
8, power supply: DC24V ± 1V.
9, the normal working conditions: temperature 0 ~ 50°C relative humidity of 15% ~ 85%;
10, standard RS-232 communication interface.

<4>Smith8002 current converters internal line simple structure in Figure

<5>Terminal defined as follows

1. +24V   Power-Access

2. GND   Ground -

3. STEP. The output signal synchronization

4. IOUT+ 4~20mA Output +

5. IOUT- 42~0mA output  -

6. TX Serial signal output

7. RX Serial signal input

Note:1, red- feet  2, yellow –feet  3, green –feet 4,blue –feet 5, white –feet

 Flow Calculation

4~20mA Current output

Transient Flow=(Current-4)/16 x Pulse full range coefficient x Pulse equivalent coefficient(L/s)

<6>Jumper note

J1 for the flow meter Originator disk rotation direction jumper choice: When no jumpers which is the sender's disk clockwise to count and the jumper set for the Originator to count anti-clockwise.

<7>As for the sender's use of performance indicators