Milltronics Accumass BW100, Инструкция по эксплуатации

Страница: 50 / 84

DAMPING
Damping (P080) provides control over the speed at which the displayed readings and
output functions respond to changes in their respective input function; load, speed
and the internal rate signals. Changes in the displayed rate of material flow, material
loading and belt speed are controlled by the damping. Relay alarm functions based on
input functions of flow, load and speed, respond to the damped value.
If the specific mA output damping parameter (P220) is enabled (value other than 0),
then the damping (P080)
as it pertains to the mA function is overridden, and the
output value and bar graph respond independently at the specified mA output
damping rate (P220).
ANALOG OUTPUT
The BW100 provides one isolated analog output. The output can be assigned (P201)
to represent rate, load or speed. The output range can be set to 0 - 20 mA or 4 - 20
mA (P200). The 0 or 4 mA value corresponds to empty or zero condition, whereas the
20 mA value corresponds to the associated design value: rate (P011), load (P952) or
speed (P014). The analog output can be limited for over range levels of 0 mA
minimum and 22 mA maximum (P212 and P213 respectively). The output 4 and 20
mA levels can also be trimmed (P214 and 215 respectively) to agree with a
milliammeter or other external mA input device.
The BW100 LCD provides a bar graph as a function of analog output. It displays the
mA value as percentage of the mA range.
The mA output value can be tested using parameter P911. Refer to Parameter
Description\P911.
97/07/07
OPERATION
PL-531 50