6
World Precision Instruments
Foot Switch
The foot switch is a two-step switch, but the
PV850
model activates whenever the
switch is
depressed, either half-way or fully. Both positions have the same result. Both
positions trigger an injection.
Not depressed
Half way depressed
Fully depressed
Touch Panel Display
Injection Pressure
(PSI or kPa)
Compensation Pressure
(PSI or kPa)
Injection Time
(msec - 2 s max.)
Protocol Loaded
Clear Clogged Tip
Injection Counter
Mode
Injection Button
Settings Screen
2
Fig. 4—The Touch Panel Display gives you access to all the parameters and the settings menu.
Protocol Loaded
– The number in the box in the upper left corner indicates the protocol
with stored parameters that is loaded. You can store and recall up to three of your most
used protocols in the
PV850
memory. If the box is empty, no protocol is loaded.
Clearing Clogged Tip
– Press Clear Tip to force a 500 ms burst of maximum pressure
( PS t rou t n t on t
s an us t t
o
s o
valves are closed when the compensation pressure is at zero. To exercise the CLEAR
function, you can set it at 0.01.
Injection Counter
r t
ou
r ss t oot s t a t a (
n t ort
s na
) t
injection counter increments. To reset the injection counter to zero,
touch the injection counter on the display.
Injection Pressure
– Touch the parameter and rotate the knob to adjust the pressure
used to inject. When you depress the foot switch all the way, this is the pressure that
is forced through the injection tip.
Compensation Pressure
– Touch the parameter and rotate the knob to adjust the
o
nsat on r ssur t at s us to r
nt t a n o t
tt
Injection Time
– Touch the parameter and rotate the knob to adjust the length of
each injection.
