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Second, use the “ARROW” keys to move the cursor to the desired setup function, then press the
“ENTER” key. The sub-menu for that group will be displayed. Use the “ARROW” keys to move the cursor
to specific item to be changed, then press the “ENTER” key. When the user is finished making the
adjustment, press the “MENU” key to return to the previous page.
Finally, to return to the RUN MODE, press the “MENU” key until the MAIN MENU is displayed. Use
the “ARROW” keys to move the cursor to the run option, then press the “ENTER” key.
Relay
From the setup menu, use the “ARROW” keys to move the cursor to the “1-Relays” option, and then
press the “ENTER” key. There are 11 menu options for configuring the relays.
RELAY 1 OP MODE – defines operation mode of relay 1
RELAY 1 ON SETPOINT – defines when relay 1 will energize
RELAY 1 OFF SETPOINT – defines when relay 1 will de-energize
RELAY 1 FAIL MODE – defines the relay 1 state during an alarm condition
RELAY 2 OP MODE – defines operation mode of relay 2
RELAY 2 ON SETPOINT – defines when relay 2 will energize
RELAY 2 OFF SETPOINT – defines when relay 2 will de-energize
RELAY 2 FAIL MODE – defines the relay 2 state during an alarm condition
RELAY 3 OP MODE – defines operation mode of relay 3.
CLEAN SCHEDULE – defines how often relay four will energize cleaning
CLEAN JET TIME – defines duration of time the clean relays will be energized
CLEAN RECOVERY TIME – defines how many long the reading holds.
The following section is a brief discussion of considerations for configuring the relays 1 and 2.
Note: Do not attempt to adjust relay set points
values until a working sensor has been
connected to the channel. Otherwise, the
analyzer may not display the correct units (TSS
or D.O.) for the channel.
Low Setpoint
If a relay “OP MODE” has been set as a LOW setpoint, then the corresponding relay will energize if
the reading falls below the value set in the “ON SETPOINT” parameter. Once the relay has been
energized by a low reading, it will not be deenergized until the reading rises above the value set in the
“OFF SETPOINT” parameter. The relay “OFF SETPOINT” value MUST be greater than or equal to the
“ON SETPOINT” value in this mode.
High Setpoint
If a relay “OP MODE” has been set as a HIGH setpoint, then the corresponding relay will energize if
the reading rises above the value set in the “ON SETPOINT” parameter. Once the relay has been
energized by a high reading, it will not be deenergized until the reading falls below the value set in the
“OFF SETPOINT” parameter. The relay “OFF SETPOINT” value MUST be less than or equal to the “ON
SETPOINT” value in this mode.
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