Set Relays 2 To 4 (Level Alarms); External Totalizers And Flow Samplers - Siemens HydroRanger 200 HMI Operating Instructions Manual

Operating

7.11 External totalizers and flow samplers

7.10.4

Set Relays 2 to 4 (Level Alarms)

Parameter
Level Source (2.8.1.2.)
(Page 194)
Relay Function (2.8.1.4.)
(Page 195)
ON Setpoint (2.8.1.5.)
(Page 197)
OFF Setpoint (2.8.1.6.)
(Page 197)
Level Source (2.8.1.2.)
(Page 194)
Relay Function (2.8.1.4.)
(Page 195)
ON Setpoint (2.8.1.5.)
(Page 197)
OFF Setpoint (2.8.1.6.)
(Page 197)
Level Source (2.8.1.2.)
(Page 194)
Relay Function (2.8.1.4.)
(Page 195)
ON Setpoint (2.8.1.5.)
(Page 197)
OFF Setpoint (2.8.1.6.)
(Page 197)
7.11 External totalizers and flow samplers
External totalizers are simple counters which count the number of relay clicks produced by
the device. This is generally used to keep track of Open Channel Monitoring (OCM) or
pumped volume totals. Note that both of these values are also stored in the device and are
available through communications.
Flow samplers are devices which take a sample of liquid when triggered by a relay click.
These samples are used to monitor water quality over time. Flow samplers can be driven by
OCM volume or by relay click volume settings depending on the application requirements.
134
Index Mode/value
2 Transducer 1
2 Level
2 1.3
2 1.2
3 Transducer 2
3 Level
3 0.2
3 0.4
4 Difference or average
4 Level
4 1.0
4 0.9
Description
Sets Relay 2 as a high level
alarm for Transducer 1, with an
ON setpoint of 1.3 m and an OFF
setpoint of 1.2 m.
Sets Relay 3 as a low level alarm
for Transducer 2, with an ON
setpoint of 0.2 m and an OFF
setpoint of 0.4 m.
Sets Relay 4 as a rake failure
alarm as it uses the differential
level point (3), with an ON set-
point of 1.0 and an OFF setpoint
of 0.9 m.
HydroRanger 200 HMI
Operating Instructions, 06/2018, A5E36281317-AC