Rice Lake Intrinsically Safe - Manual (Page 61)

320IS Installation Manual - Appendix A 55
7.8 Test Mode
In addition to normal and setup modes, test mode provides a number of diagnostic functions for the
320IS
,
including:
• Display raw A/D count
• Calibrate A/D offset and gain
• Display digital input states
• Reset configuration parameters to default values
• Transmit test character (“U”) from serial port
• Display characters received by external serial port
• Set analog output state to zero or full scale
To enter test mode, press and hold the setup switch until the front panel display shows the word
TEST
. After about
three seconds, the test mode display automatically shifts to the first test menu function, A/DTST.
Figure 7-4 shows the Test Menu structure; Figure 7-5 shows the front panel key functions in test mode. Note that,
because the Test Menu functions are all on a single menu level, the
GROSS/NET
( ) key has no function. Press the
ZERO
( ) key to exit test mode.
Table 7-9 on page 56 summarizes the test menu functions.
Figure 7-4. Test Menu
Figure 7-5. Front Panel Key Functions in Test Mode
A/DTST TEST ADCAL- ADCAL+ D/I 1 D/I 2
D/I 4 D/O 1 D/O 2
D/I 3
D/O 3 D/O 4 A/O 1 A/O 2
DEFLT XMTEDP XMTPRN ECHO R
Exit Not Used Enter Move Left Move Right