Drawing No. LP0673
Revised 08 2021
10
0.0
tON-n
ON TIME DELAY
Enter the time value in seconds that the output is delayed from turning
on after the trigger point is reached. A value of 0.0 allows the meter to
update the output status per the response time listed in the Specifications.
0.0
to
599.9
seconds
0.0
tOF-n
OFF TIME DELAY
0.0
to
599.9
seconds
Enter the time value in seconds that the output is delayed from turning
off after the trigger point is reached. A value of 0.0 allows the meter to
update the output status per the response time listed in the Specifications.
Enter the reset action of the output. See figure for
details.
Auto
= Automatic action; This action allows the output to automatically
reset off at the trigger points per the Setpoint Action shown in Setpoint
Output Figures. The “on” output may be manually reset (off)
immediately by the front panel
RST
button or user input.The output
remains off until the trigger point is crossed again.
OUTPUT RESET ACTION
LAtCH
Auto
L-dLY
Auto
rSt-n
OUTPUT
STATE
OFF
ON
Hys
SP + Hys
SP
OFF
TRIGGER POINTS
Low Acting (Unbalanced Hys) =
LO-Ub
OUTPUT
STATE
OFF
ON
Hys
SP
SP - Hys
OFF
TRIGGER POINTS
High Acting (Unbalanced Hys) =
HI-Ub
SETPOINT VALUE
Enter the desired setpoint value. The decimal point position for the
setpoint and hysteresis values follow the selection set in Module 1.
-19999
to
99999
100
SPt-n
2
HYS-n
HYSTERESIS VALUE
1
to
59999
Enter desired hysteresis value. See Setpoint Output Figures for visual
explanation of how setpoint output actions (balanced and unbalanced)
are affected by the hysteresis. When the setpoint is a control output,
usually balanced hysteresis is used. For alarm applications, usually
unbalanced hysteresis is used. For unbalanced hysteresis modes, the
hysteresis functions on the low side for high acting setpoints and
functions on the high side for low acting setpoints.
Note: Hysteresis eliminates output chatter at the switch point, while time
delay can be used to prevent false triggering during process transient
events.
5.4 Module 4 - s
etpoInt
o
utput
p
araMeters
(
4-SPt
)
PAR
Setpoint
Action
Setpoint
Select
Setpoint
Value
Output Reset
Action
Hysteresis
Value
Off Time
Delay
On Time
Delay
Output Reset
W/Display
Reset
SPSEL
4-SPt
Act-n
SPt-n
HYS-n
tON-n
tOF-n
rSt-n
rEn-n
Pro
Standby
Operation
Stb-n
Enb-n
Setpoint
Enable
PARAMETER MENU
Enter the setpoint (output) to be programmed. The
n
in the following
parameters will reflect the chosen setpoint number. After the chosen
setpoint is completely programmed, the display will return to
SPSEL
.
Repeat steps for each setpoint to be programmed. Select
NO
to exit the
module.
SETPOINT SELECT
NO
SPSEL
NO
SP-1
SP-2
Select
YES
to enable Setpoint
n
and access the setup parameters. If
NO
is selected, the unit returns to
SPSEL
and Setpoint
n
is disabled.
SETPOINT ENABLE
NO
Enb-n
YES
NO
Enter the action for the selected setpoint (output). See Setpoint
Output Figures for a visual detail of each action.
SETPOINT ACTION
HI-Ub
Act-n
HI-bL
LO-bL
HI-Ub
LO-Ub
High Acting, with balanced hysteresis
Low Acting, with balanced hysteresis
High Acting, with unbalanced hysteresis
Low Acting, with unbalanced hysteresis
=
HI-bL
=
LO-bL
=
HI-Ub
=
LO-Ub
OUTPUT
STATE
OFF
ON
Hys
SP + ½Hys
SP
SP - ½Hys
OFF
TRIGGER POINTS
High Acting (Balanced Hys) =
HI-bL
OUTPUT
STATE
OFF
ON
Hys
SP + ½Hys
SP
SP - ½Hys
OFF
TRIGGER POINTS
Low Acting (Balanced Hys) =
LO-bL
