Operating Instructions
Table Of Contents
- 1 Scope of supply
- 2 Order numbers
- 3 Basic safety instructions
- 4 Introduction
- 5 Installing the OTT SVR 100
- 6 SDI-12-commands and responses
- 7 Performing maintenance work
- 8 Repairs
- 9 Information on disposal of old devices
- 10 Troubleshooting
- 11 Technical Data
- Appendix A – Connecting the OTT SVR 100 to OTT netDLvia the RS-485 interface
- Appendix B – Wall bracket dimensions/mounting hole positions
- Appendix C – Note on the declaration of conformity
- Appendix D – RS-485 interface with Modbus protocol (RTU)
- Appendix E – OTT SVR 100 Operating Program
Command Response Description
!
Set/read flow direction filter
aOSD<value>!
aOSD!
a<value><CR><LF>
a<value><CR><LF>
Set flow direction filter
Read flow direction filter
a – Sensor address
<value> – 0 = Filter is deactivated ➝ The OTT SVR 100
determines the flow velocities towards sen-
sor and away from the sensor. The value 4
(–1/+1) in the response to the aD0! com-
mand shows the corresponding flow direc-
t
ion. Factory setting
1 = Towards sensor only ➝ the OTT SVR 100
only determines flow towards the sensor
2 = Away from sensor only ➝ the OTT SVR 100
only determines flow away from the sensor.
Note
If the filter is set to "only towards sensor"/"only away from
sensor" the OTT SVR 100 outputs "0" as the current flow
velocity if a counter flow occurs!
!
Set/read unit for "average flow velocity" and "current flow velocity" measured values
aOSU<value>!
aOSU!
a<value><CR><LF>
a<value><CR><LF>
Set unit
Read unit
a – Sensor address
<value> – +0 = m/s; factory setting
+1 = cm/s
+2 = ft/s
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