Page EN-12 Pointek ULS200 – QUICK START MANUAL A5E32268616
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Low Level Alarm Switch
This application uses the Pointek ULS200 to provide one or two low level alarms.
If the material can fall below the unit's range, the Pointek ULS200 loses the echo,
and if prolonged, defaults to fail-safe operation. The fail-safe default should be set to
suit the application.
Dual Pump Control
This application uses Pointek ULS200 to provide a control output when the process material
rises to a high level.
Typically, wet wells are used to temporarily hold storm and/or waste water. When the water
surface reaches a high level setpoint, the wet well is pumped down. The process material will
be pumped down by the deadband value to another setpoint where the control will turn off.
fail-safe = 1, 2, or 3 fail-safe = 2 or 3
Application Adjustments
alarm
function
3 - low / low-low
alarm
5 - low / LOE
alarm
alarm
setpoint
set the low and /
or low-low
alarms to the
desired values
fail-safe
mode
1 - high
2 - low
3 - hold
Relay function 13: Dual Pump
Down
Application Adjustments
relay function 6 - high control / low alarm
7 - high control / high alarm
10 - high control / LOE alarm
13 - high control / high control
relay setpoints set to desired values
deadband values referenced from relay setpoints
(distance from Pump Start
setpoint to Pump Stop setpoint)
low,
(eg. 3.5 m)
low, low,
(eg. 4.5 m)
blanking
(eg. 0.5 m)
range limit
(eg. 5.5 m)
low, low
(eg. 4.5 m)
range limit
(eg. 5.5 m)
blanking
(eg. 0.5 m)
low,
(eg. 3.5 m)
both pumps stop
4 m
relay 1
(eg. 1 m)
relay 2
(eg. 0.75 m)
deadband 1
(eg. 3 m)
deadband 2
(eg. 3.25 m)
pump 2 start
pump 1 start
blanking
(eg. 0.5 m)
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