Configure 4-20 Ma Output Range; Configure 4-20 Ma Fault Condition And Cal; Configure Alarm Relays (Relays Optional) - ECD TC80 Instruction Manual

3.3.1 C 4-20
ONFIGURE
 Double press any key except the HOME key to enter the HOME Menu. Follow
the path below to set the 4-20 mA range.
 HOME Menu → Press CONFIG → XMTR → OUTPUT → 4-20 (1)(2) → PV or
TEMP
 Press CHANGE to enter New Values.
 Choose 4 mA value, press OK
 Enter value using ▲ or ▼and NEXT to move to the next digit, press OK→Back
 Choose 20 mA value, press OK,
 Enter value using ▲ or ▼and NEXT to move to the next digit, press OK→Back
 Press BACK to return to the CONFIGURE 4-20 mA screen or HOME to return to
the HOME Menu screen.
3.3.2 C 4-20
ONFIGURE
 In the CONFIGURE 4-20 mA screen, Press MORE → FAULT or
 Choose Low Fault 3.5 mA or Hi Fault 22 mA or NONE, (default setting NONE),
Press OK
 Press BACK → CAL, (enter PW 0000) connect DVM to 4-20 mA line, Press 4.00
mA then adjust value to the DVM reading, Press 20.00 mA and adjust value to
the DVM reading. The 4-20 mA output is calibrated.
3.3.3 C A
ONFIGURE LARM
 HOME Menu → Press CONFIG → XMTR → OUTPUT → RELAYS→RLY1
 Choose the ALARM, TIMER, FAULT or DISABLE mode for Relay 1
 ALARM Displays:
o SET POINT ON: The Process Variable Value that activates the relay.
o EXPIRATION: Enter a time that should not be exceeded before the PV
should have changed enough to activate the OFF set point. At the
Expiration time the relay is deactivated and a Fault condition is
initiated. Fault: Relay 1 Time expired: Cause: Loss of reagent, failed
sensor ....
o Delay ON: The amount of time the PV must remain above/below the
set point before the relay activates.
o SET POINT OFF: The Value of the process variable that deactivates the
relay.


o Delay OFF: The amount of time the PV must remain above/below the
hysteresis point before the relay deactivates.
o STATE: Energize (relay is energized on activation)/De-energize (relay
is de-energized on activation)
 TIMER activates the relay periodically for a specific duration, user configured
period and duration
 FAULT sets the relay condition to a de-energize state and NC relay closes in
response to a Fault condition or power failure.
Page 27
A
M OUTPUT RANGE
A F C
M AULT ONDITION AND
R (R O
ELAYS ELAYS PTIONAL
SET POINT OFF > Set Point → Low Set Point
SET POINT OFF < Set Point → Hi Set Point
C
AL
)
Model TC80