Teledyne API – Model 430 Compact Ozone Analyzer
Maintenance and Service
08311 DCN7342
23
WARNINGS AND ERRORS
4.2.1.
A Warning alerts the user to a non-critical fault while allowing operation to continue; an
Error is a critical fault that prevents operation of the instrument until the cause has been
resolved.
When a
Warning
occurs, the user is alerted by a front panel message describing the
fault; the warning message may be dismissed by pressing X; however, if the fault
persists or is not resolved, an asterisk (*) in the upper right corner of the display will
continuously flash to indicate that the fault is still active. Pressing X again shows the
warnings that are active or have previously occurred and resolved but not cleared. To
clear a fault message, resolve the problem and then press X again; the message
disappears and the asterisk stops flashing (unless there are other pending faults).
When an
Error
occurs, the instrument can no longer be operated, nor can the front panel
message be dismissed until the issue is resolved. Resolve the issue, then clear the Error
message by pressing X.
The Error message will also display a series of hexadecimal codes that indicate the
occurring Error(s) or Warning(s). These hexadecimal codes must be converted to binary
numbers (Table 4-2) that can be looked up in tables listing the front panel messages with
their definitions or descriptions and conditions (Table 4-3, Table 4-4, or Table 4-5).
Note
The hexadecimal codes must be converted to binary code, using Table
4-2, in order to look up the Error or Warning definitions in Table 4-3, Table
4-4, or Table 4-5.
To decipher the error and warning codes, follow these steps (example follows):
1.
Convert the error/warning code from hexadecimal to an 8-digit binary number
(refer to Table 4-2).
2.
Note which digit positions (bits) of the 8-digit binary number have a value of 1
(each bit is assigned a position number by its place from right to left, 0 - 7).
3.
Look up the bit position number in the applicable table (Table 4-3 for an S:xx
code, Table 4-4 for an E1:xx code, or Table 4-5 for an E2:xx code). The “E/W”
column in Tables 4-4 and 4-5 indicates whether it is an Error (E) or a Warning
(W).
•
If the value of a bit is 1, then that particular error or warning is active.
•
If the value of a bit is 0, then that particular error or warning is not active.
For example, for an error code of
E1:50
:
Convert
50
from hexadecimal to binary (Table 4-2), which yields 01010000.
Count the bit positions 0 through 7 from right to left, which shows the value
one (1) at bit positions
4
and
6
.
Go to Table 4-4 (for
E1
:xx codes), and look up Bit 4 and Bit 6 for the active
faults: Bit 4 = Lamp Low Warning; Bit 6 = Pressure Warning).
Active warning codes can also be viewed in the View>Status Codes menu.
Summary of Contents for 430
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