ero electronic MKS Manuel De Service page 13

OPEN INPUT CIRCUIT OPEN INPUT CIRCUIT OPEN INPUT CIRCUIT OPEN INPUT CIRCUIT OPEN INPUT CIRCUIT
This instrument is able to identify the open circuit for TC
and RTD inputs.
The open input circuit condition for RTD input is shown by
an "overrange" indication.
For TC input, it is possible to select overrange indication
(standard) or underrange indication setting the CH2 and SH2
according to the following table:
Overrange (STD) CH2 = close SH2 = open
Underrange CH2 = open SH2 = close
Both pads are located on the soldering side of the CPU
card
SH2
CH2
XKSser1-B0.PMD 7
INSTRUMENT INSTRUMENT INSTRUMENT INSTRUMENT INSTRUMENT CONFIGURATION CONFIGURATION CONFIGURATION CONFIGURATION CONFIGURATION
1) Switch on the instrument.
The upper display shows the measured value while the lower
display shows the programmed set point value (we define the
above condition as "normal display mode").
2) Push "FUNC" pushbutton and, maintaining the pressure,
push the "MAN" pushbutton for more than 4 seconds.
The lower display will show "ConF" while the upper display
will show "C.ñOn".
NOTE: two different configuration mode are possible: NOTE NOTE NOTE NOTE
A) Monitor mode Monitor mode Monitor mode Monitor mode: in this mode it is possible to monitor
Monitor mode
but not to modify the configuration parameter. During
the monitor mode the instrument continue to perform
the standard control.
B) Modify mode Modify mode Modify mode: in this mode it is possible to verify Modify mode Modify mode
and to modify all configuration parameter.
3) By and pushbuttons select the "C.ñOd" indication
(modify mode).
4 ) Push the "FUNC" pushbutton.
NOTES: NOTES NOTES NOTES NOTES
1 ) When modify mode is started, the instrument stops the
control action and:
- sets control outputs to OFF;
- sets alarms in no alarm condition;
- disables the serial link.
2 ) If the configuration is protected by security code the
display will show:
By and keys enter a value equal to the
configuration security code (see P55 parameter) or the
master key code (see appendix A).
Note: Note: Note: Note: Note: the master key code allows to enter in modify
configuration parameters mode either if the configuration
security code is lost or if the configuration parameters are
always protected (P55 = 1).
Fig. 12
GB GB
GB GB GB 7
12/09/2005, 9.46