Summary of Contents for FTS SDI-RADAR-300W
- Page 1 EXTREME ENVIRONMENTS. EXTREMELY RELIABLE. SDI-RADAR-300W Surface Flow Velocity Radar Operating Manual 1.800.548.4264 | www.ftsinc.com 700-SDI-RADAR-300W-Man Rev 2 30 May 2022 Part# 21370...
- Page 2 Contact Information Canadian Headquarters: 1065 Henry Eng Place Victoria, BC | V9B 6B2 | Canada www.ftsinc.com Toll-free: 1.800.548.4264 Local: 250.478.5561 Technical support portal: http://support.ftsinc.com Email: service@ftsinc.com...
-
Page 3: Table Of Contents
Content APPROPRIATE USE ............................. 1 GENERAL SAFETY INSTRUCTIONS ......................1 FUNCTIONAL PRINCIPLE ........................... 2 INTERFERENCE AND MULTIPLE RADARS ....................2 CONNECTOR PIN-OUT AND WIRING ....................... 3 ELECTRICAL CHARACTERISTICS ........................ 4 INSTALLATION POSITION .......................... 5 RAIN AND WIND ............................6 FOGGING AND EVAPORATION ......................... 6 REFLECTIONS .............................. - Page 4 ELECTRICAL CHARACTERISTICS ......................35 CONNECTING TO THE SDI-RADAR-300W ....................35 TROUBLESHOOTING SDI-12 ADAPTER ERRORS ................... 37...
-
Page 5: Appropriate Use
Arbitrary conversions or modifications are explicitly forbidden. The safety approval markings and safety tips on the device must also be observed. 700-SDI-RADAR-300W-Man Rev 2 30 May 2022 1/39 Part# 21370... -
Page 6: Functional Principle
Some wideband radiation sources can introduce small impulse interference for a short period of time, but this is very unlikely to affect measurements reported by the radar. 0.04 mph to 33.55 mph with a precision of 0.02 mph 700-SDI-RADAR-300W-Man Rev 2 30 May 2022 2/39 Part# 21370... -
Page 7: Connector Pin-Out And Wiring
RS-485 data transmitter/receiver high signal. Black Alarm1 SW Alarm 1 – open collector switch signal max. 60mA (optional) Purple 4-20 mA Sink for 4-20 mAanalog interface. Connect sensing device as pull-up to sink the current 700-SDI-RADAR-300W-Man Rev 2 30 May 2022 3/39 Part# 21370... -
Page 8: Electrical Characteristics
− Angle compensation degrees Distance − (0.33) (164.04) (feet) − Sample Rate Ingress protection rating IP68 − − Mechanical 110 x 90 x50 − − (4.33 x 3.54 x 1.97) (in) 700-SDI-RADAR-300W-Man Rev 2 30 May 2022 4/39 Part# 21370... -
Page 9: Installation Position
If strongly turbulent flow can be expected at monitoring site, then the filter length of the radar should be configured to 120 or more. Additional information can be found at: https://geolux.ams3.cdn.digitaloceanspaces.com/documents/Surface-Velocity-Measurement.pdf 700-SDI-RADAR-300W-Man Rev 2 30 May 2022 5/39 Part# 21370... -
Page 10: Rain And Wind
The best solution for surface velocity measurements in heavy evaporation is to use the outbound flow direction and to configure the sensor with only the downstream directional filter. As 700-SDI-RADAR-300W-Man Rev 2 30 May 2022 6/39 Part# 21370... -
Page 11: Reflections
The 300W radar is designed to achieve accurate measurements even in environments with very small SNR so the required surface roughness of 1mm is usually enough for precise measurements. Figure 3-2: Reflected power 700-SDI-RADAR-300W-Man Rev 2 30 May 2022 7/39 Part# 21370... -
Page 12: Serial Interfaces
2) Servicing protocol on RS-232 interface for configuring the unit 3) Request Response Protocol on RS-485 interface that allows multiple units to be used on a single RS-485 bus 700-SDI-RADAR-300W-Man Rev 2 30 May 2022 8/39 Part# 21370... -
Page 13: Nmea Protocol (Rs-232)
Since NMEA protocol is one way (it only outputs the data), the servicing protocol is always active. In the radar sensor setting it is possible to select km/h, mph, fps, fpm or mm/s for the speed reporting 700-SDI-RADAR-300W-Man Rev 2 30 May 2022 9/39... - Page 14 Change filter length: Changes the window length (in samples) for moving average filter. #set_filter_len=<1-1000> Change default device orientation: Configure orientation of device mounting. #set_rotation=<0-1> 0 = standard orientation 1 = 90 degree rotation (i.e. sideways) 700-SDI-RADAR-300W-Man Rev 2 30 May 2022 10/39 Part# 21370...
-
Page 15: Request-Response Protocol (Rs-485)
ID: Exactly two bytes long. This is the unit ID written as two ASCII characters. For example, if the polled unit ID is 2, then ID will be sent as “02”. In HEX representation it is the following two bytes: <0x30><0x32>. 700-SDI-RADAR-300W-Man Rev 2 30 May 2022 11/39 Part# 21370... -
Page 16: Modbus Protocol (Rs-485)
Name Addr Data start Addr Data#of regs CRC16 Length 1 byte 1 byte 2 bytes (H.L.) 2 bytes (H.L.) 2 bytes (L.H.) Example 0X01 0X03 0X00 0X00 0X00 0X01 0X84 0X0A 700-SDI-RADAR-300W-Man Rev 2 30 May 2022 12/39 Part# 21370... - Page 17 Rows highlighted in blue denote the important values measured by the sensor. Rows highlighted in red denote operating parameters that could be changed in the field. 700-SDI-RADAR-300W-Man Rev 2 30 May 2022 13/39 Part# 21370...
- Page 18 Is speed correction for tilt angle 0 → Disabled 0X0013 2 bytes 1 → Enabled enabled 0 → Sensor Err. 0X0014 2 bytes Level sensor health indicator 1 → Sensor OK 700-SDI-RADAR-300W-Man Rev 2 30 May 2022 14/39 Part# 21370...
- Page 19 To 32,767 0X0199 k-coeff values 0X019A Each k-coeff value is stored as val * 128*(2 byte) 0-65535 …. 10000; so for k-coeff of 0.85, the 0X0219 register would hold 8500. 700-SDI-RADAR-300W-Man Rev 2 30 May 2022 15/39 Part# 21370...
- Page 20 Point Heights buffer OR From -32768 0X0011 - 0X0090 2 bytes k-coeffs height levels buffer To 32,767 Point X offsets buffer OR 0X0091 - 0X0110 2 bytes 0 – 65536 k-coeffs buffer 700-SDI-RADAR-300W-Man Rev 2 30 May 2022 16/39 Part# 21370...
-
Page 21: Sdi-12 Protocol
Verification values can be retrieved by the Send Data Command a+d1+d2 Send aD0! a = SDI-12 address Verification +d1 = adapter status Data 0 = error; 1 = OK +d2 = radar status 0 = error; 1 = OK 700-SDI-RADAR-300W-Man Rev 2 30 May 2022 17/39 Part# 21370... - Page 22 3) The X and other mandatory characters must be capitalized as shown in the table 4) Do not place spaces within the command See Table 4-7 for the most common SDI-12 read/Write commands. 700-SDI-RADAR-300W-Man Rev 2 30 May 2022 18/39 Part# 21370...
- Page 23 Input “Read last value” command after waiting time indicated in the above response aXGRMV! Read last value Response: a<val> <val> = Direction filter type. See above for filter type codes. 700-SDI-RADAR-300W-Man Rev 2 30 May 2022 19/39 Part# 21370...
- Page 24 - set mm/s unit type aXGWHR+2+1! - set m/s unit type aXGWHR+2+2! - set mph unit type aXGWHR+2+3! - set km/h unit type aXGWHR+2+4! - set fps unit type aXGWHR+2+5! - set fpm unit type 700-SDI-RADAR-300W-Man Rev 2 30 May 2022 20/39 Part# 21370...
- Page 25 = the last received Modbus value requested by aXGRHR+d! or aXGRIR+d! Write Modbus Response: a<val0> aXGWHR+d1+d2! holding register val0 = written value +d1 = holding register address +d2 = value 700-SDI-RADAR-300W-Man Rev 2 30 May 2022 21/39 Part# 21370...
- Page 26 0X0011 154-281 0X009A - 0X0119 0X0008 0X0012 282-409 0X011A - 0X0199 0X0009 0X0013 410-537 0X019A - 0X0219 Additional Addresses from the Write Register: 17-144 0X0011 - 0X0090 145-272 0X0091 - 0X0110 700-SDI-RADAR-300W-Man Rev 2 30 May 2022 22/39 Part# 21370...
-
Page 27: Connecting The Radar To The Configurator
The radar should not be powered from the Geolux SDI interface as the interface turns the power to the radar off after a period of inactivity. Instead, the power connections should be made directly to a +12V supply as shown in Figure 5-1. 700-SDI-RADAR-300W-Man Rev 2 30 May 2022 23/39 Part# 21370... - Page 28 4) The Configurator will try to establish a data link between your PC and the flow meter device. After the data link is established, active device parameters will be displayed, and the flow velocity measurements will be displayed: 700-SDI-RADAR-300W-Man Rev 2 30 May 2022 24/39 Part# 21370...
-
Page 29: Surface Velocity Radar Settings
The available values are standardized. Using higher baud rate over longer lines may introduce errors in transferred data. The default instrument baud rate is 9600 bps. 700-SDI-RADAR-300W-Man Rev 2 30 May 2022 25/39 Part# 21370... - Page 30 ID as a device address. All instruments will receive the request, but only the instrument with matching device ID will answer to the received request. 700-SDI-RADAR-300W-Man Rev 2 30 May 2022 26/39 Part# 21370...
- Page 31 4-20 mA min: To configure the 4-20 mA output range, the minimum measured value which will correspond to 4 mA analog output needs to be set. The value is set in the 700-SDI-RADAR-300W-Man Rev 2 30 May 2022 27/39 Part# 21370...
-
Page 32: Processes
1500 mm/s (for example 2000 mm/s). Alternatively, if the resolution is not critical, then minimum value for 4-20 mA output can be left to the instrument maximum of 15000 mm/s. 5.2.2 PROCESSES 700-SDI-RADAR-300W-Man Rev 2 30 May 2022 28/39 Part# 21370... - Page 33 If the direction filter is set to both directions, the instrument will measure the flow velocity in any direction and will also report the actual direction of the flow. If the direction 700-SDI-RADAR-300W-Man Rev 2 30 May 2022 29/39 Part# 21370...
- Page 34 700-SDI-RADAR-300W-Man Rev 2 30 May 2022 30/39 Part# 21370...
-
Page 35: Measurement
4 or 5. Velocity min.: This parameter is used for setting up the minimum velocity value of interest. Velocity max.: This parameter is used for setting up the maximum velocity value of interest. 700-SDI-RADAR-300W-Man Rev 2 30 May 2022 31/39 Part# 21370... - Page 36 7-2. Figure 6-2: Flow Velocity in a Typical Cross-section 700-SDI-RADAR-300W-Man Rev 2 30 May 2022 32/39 Part# 21370...
- Page 37 Knowing the non-rectangular area of the stream cross-section, and knowing the surface flow velocity, the following formula can be used: ���� = 0,85 ∗ ���� ∗ ���� More details about water flow measurements can be found in the following technical note: https://s3.amazonaws.com/Product_Sensors/701-Technotes3-Surface+Flow.pdf 700-SDI-RADAR-300W-Man Rev 2 30 May 2022 33/39 Part# 21370...
- Page 38 Operating Temperature Range -40⁰ - +85⁰C (-40⁰ - +185⁰F) (without heating or coolers) Ingress Protection Rating IP68 Connector M12 circular 12-pin Enclosure Dimensions 110mm x 90mm x 50mm (4.33in x 3.54in x 1.97in) 700-SDI-RADAR-300W-Man Rev 2 30 May 2022 34/39 Part# 21370...
- Page 39 Wire the radar and data logger to the SDI-12 Adapter in accordance with Figure A-1. See Table A-1 for relevant pin descriptions. Note 1 Datalogger Radar Note 1: RS232 connections only used when configuring the Geolux SDI Converter (contact FTS for details). Figure A-1: SDI-12 Adapter wiring diagram 700-SDI-RADAR-300W-Man Rev 2 30 May 2022 35/39 Part# 21370...
- Page 40 The adapter is communicating with (or attempting to communicate with) a device on the RS-232 input After 10 seconds of initial mode, the LED turns off and the adapter reverts to constant operational mode. 700-SDI-RADAR-300W-Man Rev 2 30 May 2022 36/39 Part# 21370...
- Page 41 ERROR, even though the radar instrument is actually connected and operational. In this case, in order to get the correct status, a measurement command (aM!) followed by a Verify command (aV!) must be issued. 700-SDI-RADAR-300W-Man Rev 2 30 May 2022 37/39 Part# 21370...
- Page 42 Command : 1M! Response : 10154<CR><LF> … Command : 1D0! Response : 1+1.7+1.64+12+45<CR><LF> 2. If the SDI-12 adapter cannot communicate with the radar instrument: Command: 1M! Response: 10154<CR><LF> Command: 1D0! Response : 1<CR><LF> 700-SDI-RADAR-300W-Man Rev 2 30 May 2022 38/39 Part# 21370...
- Page 43 DOCUMENT REVISION HISTORY Revision Date Description 08 Oct 2021 Original 30 May 2022 Updated information on SDI-12 Adapter and SDI-12 commands in accordance with Jan 2022 reference manual). Added configurator information (v 2.1.3). 700-SDI-RADAR-300W-Man Rev 2 30 May 2022 39/39 Part# 21370...
Need help?
Do you have a question about the SDI-RADAR-300W and is the answer not in the manual?
Questions and answers