Super Systems AC20 User Manual

Page 55

Es is is the sensor output (in mV) measured after the shunt

connection.

4) It removes the 47.5 K

Ω

shunt resistor.

5) It displays the calculated value on the lower display and stores

it in a memory location for later recall.

Probe response time

Probe response time
The probe response time is the time which takes the mV
measured value (after the shunt is removed) to return to the
original value before the shunt connection (+ 4 mV).
The probe response time is stored in a memory location for later
recall.
If the probe response time is greater than 60 seconds, the probe
response time calculation will be aborted.

NOTES:

NOTES:
a)During the Probe test, the control output, the Adaptive

algorithm and alarm status are frozen.
All functions will be automatically restored at the end of this
procedure.

b)If a power down occurs, the current probe test status and

timings will be lost (if automatic probe test was set, the timer
will start again from the value set by the "Pb.tr" [R.H04]
parameter).

SERIAL LINK

SERIAL LINK
The device can be connected to a host computer by a serial
link.
The host can put the device in LOCAL (functions and parameters
are controlled via keyboard) or in REMOTE (functions and
parameters are controlled via serial link).
The REMOTE status is signalled by the RM LED.
This instrument allows you to modify the operative and configura-
tion parameters, via serial link.
The necessary conditions to implement this function are the
following:
1) the serial parameters (see Run time group 7) should be

properly configured.

2) the device must be in the run time mode.
3) when it is desired to modify configuration parameter, the dip

switch V101.3 should be set to "OFF" (configuration parameter
enabled).

During configuration parameter downloading the device goes in
open loop with all output in OFF state.
At the end of configuration procedure, the device performs an
automatic reset and then returns to close loop control.