ENMET ISA-200-RAL (O) - Manual (Page 19)

ISA 200 RAL (O) ENMET Corporation
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5.1.5 Set Latches
To latch and unlatch the alarm relays, after inserting a valid key, press the OPTION switch three times; "set
LATCHES" is displayed.
§ Press the Select switch; the particular alarm relay and its latch mode is displayed, for example, "RELAY: 10ppm
CO, LATCH: no".
§ Use the OPTION switch to toggle the latch mode between "yes" and "no". Select the desired mode. See section 4.3.
§ Press the SELECT switch to step to the next relay. The procedure steps sequentially to all alarm relays in this
manner; when complete, it returns to the "set LATCHES" position.
From Selectable Alarms
Example: Set Latches Flow Chart
5.1.6 Set the Key
To set a new key, after inserting a valid key, press the OPTION switch four times; " set KEY” is displayed. Press the
SELECT switch; " KEY = 0000" is displayed, with the underscore cursor under the left digit. Use the OPTION switch
to change the left digit, select the desired digit, and use the SELECT switch to lock the digit in place and move the
cursor one digit to the right. When all four digits of the new key have been selected, " NEW = XXXX" is displayed.
Record the new key; without it, the maintenance menu cannot be reentered once it is left. If the key is lost, call
ENMET customer service personnel.
From the "NEW = XXXX" position, press either the OPTION or the SELECT switch; "exit MAINTENANCE
MODE" is displayed.
From Set Latches
Example: Set Key Flow Chart
5.1.7 Exit
From the "exit MAINTENANCE MODE" position
Press the SELECT switch to resume the operational display.
Press the OPTION switch to reenter the maintenance menu at the " run AUTOMATIC ZEROING" position.
Return to Run Automatic Zeroing
S O exit MAINTENANCE
MODE
Return to Operational Display
O
O
O
S
O
S
S
S
set LATCHES
RELAY FAULT
LATCH: no
RELAY O2
LATCH: no
RELAY 10 PPM CO
LATCH: no Toggles “Yes” and “No”
To Set Key
Toggles “Yes” and “No”
Toggles “Yes” and “No”
O = Option Switch
S = Select Switch
S
O
Locks underscore digit and moves cursor to next digit O
S set KEY
KEY=0000
NEW = XXXX
Changes digit indicated by underscore cursor
S or O
To exit Maintenance Mode
O = Option Switch
S = Select Switch