Hach 5500sc Guide De L'opérateur page 12

Option Description
DERIVATIVE Sets a value that adjusts for vacillation of the process. The majority of applications can be
controlled without the use of the derivative setting.
TRANSIT TIME Sets the value to stop the PID control for a selected period of time when the sample moves
from the control pump to the measurement sensor.
5. Select SET FUNCTION>LOGARITHMIC and then select the applicable options in the
ACTIVATION menu.
Option
SET 50% VALUE
SET HIGH VALUE
6. Select SET FUNCTION>BILINEAR and then select the applicable options in the ACTIVATION
menu.
Option
SET LOW VALUE
SET HIGH VALUE
SET KNEE POINT VALUE
SET KNEE POINT CURRENT Sets the value of the current at the knee point value.
Relay setup
1. Push menu and select SETUP SYSTEM>SETUP OUTPUTS>RELAY SETUP.
2. Select the relay.
3. Select an option.
Option
ACTIVATION
SELECT SOURCE Selects the output. Options: None (if the relay is not configured), the analyzer name or
SET FUNCTION
SET TRANSFER
FAIL SAFE
Relay activation options
1. Push menu and select SETUP SYSTEM>SETUP OUTPUTS>RELAY SETUP.
2. Select the applicable relay.
12 English
Description
Sets the value corresponding to 50% of the process variable range.
Sets the high endpoint (upper value) of the process variable range.
Description
Sets the low endpoint of the process variable range.
Sets the high endpoint (upper value) of the process variable range.
Sets the value at which the process variable range divides into another linear
segment.
Description
The menu list items change with the selected function. Refer to
on page 12 for more information.
calculation (if a calculation formula has been configured). Refer to
on page 10.
Selects a function. ALARM—The relay starts when the upper or lower alarm value is
triggered. FEEDER CONTROL—The relay shows if a process value is larger or falls
below a setpoint. EVENT CONTROL—The relay toggles if a process value reaches an
upper or lower limit. SCHEDULER—The relay switches at certain times independently of
any process value. WARNING—The relay shows warning and error conditions in
probes. PROCESS EVENT—The relay switches when the analyzer does a specified
operation.
Selects active or inactive.
Selects yes or no.
Relay activation options
Set up the calculation