Ashcroft GC52 - Rangeable wet/wet Differential Pressure Tra Manual de usuario descargar pdf (Pagina 20)

• When the display resolution lowers and the wobbling of momentary

flow rate increases in the low flow domain of the differential pressure

flow meter, the domain (below the set value) will be forcedly indi-

cated as zero by means of the low-cut for momentary flow rate.

Moreover, the analog output has a fixed value of 4mA at the zero

point. For setting of low-cut, input the percent value over the maximum

display span. Its range is 0 to 30%F.S. and the decimal point position

can be set up to one digit after decimal point as fixed point.

Setting of low-cut ==> Setting item 

(2) Analog output

The zero point (4mA) and span point (20mA) of analog output can

be set in the range of 0 to 110%F.S. of the maximum display span

(0 to maximum momentary flow rate). The span between the zero

point and the span point in this analog output is the momentary

flow rate display span.

(3) Integrated volume

• The units of integrated volume include two standards: Time

factor and flow rate volume factor.

Setting of integrated volume unit ==> Setting item 

20 , 21

• The number of digits of integrated volume display is a

maximum of 6 figures (999999); the display will return to 0 once

the maximum reading has been met.

• The zero reset of an integrated volume is executed by pressing S key

for more than 3 seconds and displaying "cLr" (clear) for 2 seconds.

999999

overflows

clr

• As backup in case of POWER OFF, the integrated volume value

is stored in the nonvolatile memory for every hour. After power re-

turns, integration starts from the integrated volume value stored in

the memory.

1 2 ... 15 16 17 18 19 20 21 22 23 24 25 ... 39 40

Sin comentarios

Ashcroft GC52 - Rangeable wet/wet Differential Pressure Tra Manual de usuario Pagina 20