If PDR1000 received external electric contact signal (Switch turns On to Off), Switch icon will
change from close to open ( ) then pressure value will be hold status with “Hold” icon
blinking.
Even supply pressure changed, Pressure value will keep hold until push ZERO key.
Pressure changes can be checked via percentage section on the bottom side of screen.
<Hysteresis function>
Apply Switch function operation with Switch “On” status then connect External Pressure Switch
to PDR1000.
If pressure value reach the Pressure Switch set value, display pressure value will be hold then
copy down the held pressure value.
Push ZERO key to release the held pressure value then depressurize, Electronic contact on
Pressure Switch will reverse and locked up the display value.
Pressure Switch Hysteresis value is difference between when pressurize then electronic contact
changed and when depressurize then electronic contact changed.
< Normal Close type >
PSV
ON
OFF
Hys
+ Pressure- Pressure
PSV : Pressure safety Valve
Hys : Hysteresis Value
37
MPa
%
g
0
50
MPaHold
%
g
0
50
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