Test Mode - Rice Lake 520 Installation Manual

13.13 Test Mode

In addition to normal and setup modes, test mode
provides a number of diagnostic functions for the 520,
including:
• Display raw A/D count
• Display digital input states
• Reset configuration parameters to default
values
• Clear non-volatile (battery backed) storage
• Set analog output state to zero or full scale
• Set A/D offset and gain calibration
• Print configuration
To enter test mode, press and hold the setup switch
until the front panel display shows the word
After about three seconds, the test mode display
automatically shifts to the first test menu function,
A/DTST.
TEST
D/I 3
TEST
A/DTST ADOFFS
AOUT=0 AOUTFS
Figure 13-6. Test Menu
MODE
Figure 13-7. Front Panel Key Functions in Test Mode
F i g u r e 1 3 - 6 s h ow s t h e Te s t M e n u s t r u c t u r e ;
Figure 13-7 shows the front panel key functions in test
mode. Note that, because the Test Menu functions are
all on a single menu level, the
has no function. Press the
mode.
Table 13-12 on page 80 summarizes the test menu
functions.
A/D calibration functions, ADOFFS
Caution
and ADGAIN, must be used only by
qualified service personnel, and only
after replacing A/D converter components. Improper A/D
calibration may render the indicator unusable.
.
ADGAIN
DEFLT
ENTER SAMPLE
( ) key
GROSS/NET
ZERO ( ) key to exit test
D/I 1 D/I 2
CLR NV PRTCFG
Appendix 79