![Oval ALTImass CA004 Скачать руководство пользователя страница 68](http://html1.mh-extra.com/html/oval/altimass-ca004/altimass-ca004_instruction-manual_1662154068.webp)
L-737-3-E
9.13 Analog Output Function
The transmitter is provided with two analog outputs which can be assigned to "mass flow", "volume flow",
"temperature", "density" and "drive output". The setup procedure is outlined below:
(1) Setup procedure
By reconfiguring the following five parameters, outputs that suit your particular application are made
available.
①
Output assignment (Assign) (See .. Transition chart (3) [No. ---] and [No. ---].)
Types of measurement are selected.
・
Mass Flow: Instant mass flowrate
・
Vol Flow:
Instant volume flowrate
・
Density:
Density
・
Temp:
Temperature
・
Drive Output: Drive output
When assignments are modified, reconfigure upper limit, lower limit, low flow cutoff, and damping
factor to values that best suit your application.
②
Upper limit value (URV) (See .. Transition chart (3) [No. ---] and [No. ---].)
The lower limit of analog output can be changed; a mA output is produced when the preset
value is reached. Values outside the maximum range (
※
) and smaller than the lower limit value
are unacceptable, however.
③
Lower limit value (LRV) (See .. Transition chart (3) [No. ---3] and [No. ---3].)
The upper limit of analog output can be changed; a 0mA output is produced when the preset
value is reached. Values outside the maximum range (
※
) and larger than the upper limit value
are unacceptable, however.
④
Low flow cutoff (Lowcut) (See .. Transition chart (3) [No. ---] and [No. ---].)
The low flow cutoff of analog output (%) can be changed. When the low flow cutoff value is
larger than the proportion of analog output
-
where the upper limit is set to 00% and the lower
limit is 0%
-
the analog output becomes mA. Acceptable setting range is from 0% to 0%.
⑤
Damping factor (Added Damp) (See .. Transition chart (3) [No. ---] and [No. ---].)
Damping constant of analog output (sec) can be changed. Select a larger value when analog
output fluctuates excessively; select a smaller value when fast response is desired.
Acceptable setting range is from 0 to 00 (sec).
⑥
The state of analog output in an error (Analog) (See .. Transition chart () [No. ---].)
・
Downscale: .mA is output.
・
Zero:
mA is output.
・
Hold:
Analog output immediately before an error is maintained.
・
Upscale: .mA is output.
(For details of outputs in an error, see 0. Error Messages.)
※
Maximum range
Instant mass flowrate:
-
Max. allowable range to max. allowable range
Instant volume flowrate:
-
Max. allowable range/0.3 to max. allowable range/0.3
Temperature:
Max. temperature range of sensor
Density:
0.0 to .0
CAUTION: When measurement-related unit set up at Assign is modified, the
upper and lower limit values will be converted automatically to the
measures to read in the unit selected.
NOTE: For this function, the setting change is disabled in
Write Protect mode (refer to section .).