Electro-pneumatic Regulator ER100
Instruction Manual
rev. 2.0
page 24 / 38
If the function is not activated:
In case of “mode 1” :
In case of “mode 2” :
Setting (%)
Negative admissible limit
Setting (%)
Positive admissible limit
Setting (%)
Lower limit
Setting (%)
Upper limit
4.3.5. Proportional Value Change Function ”F5”
Control and activation of proportional value change function with “F5” .
Note: This function is available only for model ER104-1*.
The proportional value change validity setting and the setting level can be checked
If adjustment is invalid: The control uses the standard value (factory shipment setting)
If adjustment is valid: "Proportional value increase" or "proportional value decrease" can be
selected. Only when "proportional value decrease" is selected, the setting level can be
selected among 10 steps.
< Effect of proportional value increase>
According to some operation conditions (such as piping and load capacity), more accurate control
can be obtained. However, hunting is likely to be caused. Be careful when using the function.
< Effect of proportional value decrease>
According to some operation conditions (such as piping and load capacity), more stable control can
be obtained. The option is effective in particular for systems with large fluctuation of the control
pressure or hunting.
Time (msec)
Co
ntr
o
l pr
es
su
re
In case of proportional value decrease
(10 steps: L1 to L10)
If the function is invalid (standard
value) *Factory shipment setting
Image drawing of proportional value change function
Note. The actual effect is not like the image drawing. It varies according to piping and load
conditions.
