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
!
Wave height measurement using the OTT SVR 100 is not possible.
!
The OTT SVR 100 and OTT RLS can be combined at a single measuring point
with no problems as they do not influence one another. Likewise, multiple
OTT SVR 100s can be used in parallel on very wide flowing waterways.
5.2 Information on supply voltage
The OTT SVR 100 requires a supply voltage of 9 … 28 V DC, typically 12/24 V
DC
(e.g. form battery or mains connection with electrically isolated safety extra low
voltage).
The OTT SVR 100 is ready to use as soon as the supply voltage is connected. The
first valid measured values are available around 30 seconds later.
Please note:
!
When using solar panels, we recommend using a surge protector.
5.3 Compatible cable types
The connecting cable with angled connector supplied (length: 10 metres) can be
extended to a maximum of 1000 m. Recommended cable type: Twisted pair
cable, unscreened design. However, the wires intended for the supply voltage do
not have to be a twisted pair.
The maximum cable length depends on the wire corss-section used:
Connecting cable for typical. 12 V
DC
for typical. 24 V
DC
– 2 x 2 x 0.50 mm
2
≤ 150 metres ≤ 250 metres
– 2 x 2 x 0.75 mm
2
≤ 250 metres ≤ 1000 metres
Hight „h”: 0.5 … 25 m (17 m*)
m
a
x
.
5
0
m
* ! = 20°
Distance „a“ (centre of sensor radar footprint)
Fig. 7: Maximum distances of
OTT SVR 100 to water surface.
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