Global Water 800-876-1172 • globalw.com Global Water Instrumentation, Inc. 151 Graham Road P.O. Box 9010 College Station, TX 77842-9010 T: 800-876-1172 Int’l: (979) 690-5560, Fax: (979) 690-0440 E-mail : globalw@globalw.
Global Water 800-876-1172 • globalw.com Congratulations on your purchase of the Radar Level Transmitter. This instrument has been quality tested and approved for providing accurate and reliable measurements. We are confident that you will find the Radar Level Transmitter to be a valuable asset for your application. Should you require assistance, our technical staff will be happy to help. Table of Contents I. Checklist • • • • • • • Page 3 II. Inspection • • • • • • 3 III.
Global Water 800-876-1172 • globalw.com I. Radar Level Transmitter Checklist a. Radar Level Transmitter b. Manual II. Inspection a. Your Radar Level Transmitter unit was carefully inspected and certified by our Quality Assurance Team before shipping. If any damage has occurred during shipping, please notify Global Water Instrumentation, Inc. and file a claim with the carrier involved. b. Use the checklist to ensure that you have received everything needed to operate the Radar Level Transmitter. III.
Global Water 800-876-1172 • globalw.com IV. Features a. The Radar Level Transmitter uses improved microwave pulse technology to track any target material from the tip of its antenna to the bottom of the tank. Its power, pulse widths and sensitivity depend on the distance of the target from the antenna and the dielectric constant of the reflecting material. b.
Global Water 800-876-1172 • globalw.com V. Specifications Power: AC: 115 VAC, 60 Hz or 230 VAC, 50 Hz (± 20%), 1.7 VA DC: 12 to 30 VDC, 0.07 Amps max. @ 24 VDC Outputs: Signal: 4-20 mA, 6.1 uA resolution; 750 ohms Communication: Optional RS232 or RS485 Accuracy: ±0.25% of maximum sensor range (in air) Frequency: 6.3 GHz (or 5.8GHz CE) Measurement Range: 10” to 50’ (0.254 meters to 15.2 meters) Resolution: 0.22in (5.
Global Water 800-876-1172 • globalw.com Approvals: FCC Part 15 - low-power communication device CE – 5.8GHz Models Weight: 3.6Lbs (1.63Kg) Dimensions: 4” (10cm) diameter x 18” (45.
Global Water 800-876-1172 • globalw.com VI. Operation a. The microwave rod antenna is stimulated by an electromagnetic pulse transmitter and sends very short pulses to a target. The pulses reflect from the target and then they are received back by the same antenna. The electrical signal from the antenna is amplified and processed. The distance to an object is calculated and then converted to 4-20 mA.
Global Water 800-876-1172 • globalw.com VII. Software Operation a. Click on “START” button, “PROGRAMS”, and select “PROBE_GatewayPC”. b. Select “Start Data Link”. In the program’s main window there will be two bar graphs, displaying the last 8 echoes and the current output. When PC is connected to Probe, the application header displays the Probe ID. When PC is connected to the Radar, the application header displays Radar ID, range, pipe on/off status, pipe diameter and low dielectric filter status.
Global Water 800-876-1172 • globalw.com 9. “Temperature Scale”: (Not applicable for microwave probe.) 10. “Low Dielectric Material”: (choose for low dielectric constant materials, for microwave probes only) 11. “Pipe Mode” On/Off (for microwave probe only) 12. “Select Pipe Diameter” (for microwave probe only) 13. “Damping OFF”: Fast response mode of the probe 14. “Damping ON”: Select damping time d. “ShowCalibData” (Show Calibration Data): Screen displays all calibration parameters. e.
Global Water 800-876-1172 • globalw.com i. “AutoScan” button (only for network): Collects data for all sensors connected in the network. Scanning time for one sensor is 30 seconds. Other functions are disabled in Auto Scan mode. j. “SensorStatusMonitoring” function displays status of selected sensor. 1. Push the “Update_all” command button to display status for all sensors in network. 2. Traffic icon green/red light indicates communication status. 3. All other functions are disabled in this mode. k.
Global Water 800-876-1172 • globalw.com 4. “Full Tank Blanking”: Using full tank programmable calibration, select distance to the probes that covers any unwanted echoes close to the probes. To activate this, go to “Tools” and click on “Full Tank Blanking” and wait for the conformation. 5. “Set Loss of Echo Time”: (Not applicable for microwave probe.) 6. “Damping ON” / “Damping OFF”: In case of waves or turbulence on liquids increase the damping time. This will slow down the probe response.
Global Water 800-876-1172 • globalw.com 3. “Send Profile by EMAIL”: Select to send probe profile by Email. One or thirty minute frequencies of sending can be selected. This option works with Microsoft Outlook Express software. The following Email settings are required: a) “Connect Automatically” option shall be selected for connection to Internet. b) In Outlook Express under the “Tools” menu, select “Options” and then click on “Security Tab”.
Global Water 800-876-1172 • globalw.com VIII. Installation a. Direct mounting sensor: simply thread sensor into metal or plastic nozzle. b. Radar unit MUST be installed into a fitting with the antenna pointing downward. (See Figure 3.) Figure 3 c. For very low dielectric constant materials (≈ 2), the radar sensor needs at least 2' from the antenna tip to detect the material. Any buildup on the rod antennas does not deteriorate the performance of the radar sensors. d.
Global Water 800-876-1172 • globalw.
Global Water 800-876-1172 • globalw.com IX. Wiring Information a. Wiring Information 1. Ground shield at one end only. 2. All terminal block wiring must be rated for 250V. 3. Power input wiring must be protected by a 15A double pole circuit breaker. 4. Terminal is for use only with equipment that has no live parts that are accessible. (See Figure 6, page 16.) 5. Terminal is for use with equipment, which maintains basic insulation from hazardous voltage under normal and single fault conditions.
Global Water 800-876-1172 • globalw.
Global Water 800-876-1172 • globalw.com X. Calibration a. FULL: Calibrate 20 mA or 4mA. Set near target. (See Figure 7, page 18.) 1. Calibration mode LED color is Green. (For Radar, Low Dielectric Materials has to be off. See step C.) 2. Push button and hold until LED turns Yellow (20 mA) or push button and hold until LED turns Red (4 mA) 3. Release button, observe LED flashes to acknowledge the calibration. b. EMPTY: Calibrate 4 mA or 20 mA. Set Far Target. (See Figure 7, page 18.) 1.
Global Water 800-876-1172 • globalw.
Global Water 800-876-1172 • globalw.com XI. Maintenance a. The unit must be checked periodically. The suggested maintenance rate depends on the installation area. Check batteries for correct voltage periodically. XII. Trouble Shooting Issue: Radar Level Transmitter not operating correctly Internal piping, deposits on the antenna, multiple reflections or reflections from the wall can all interfere with the proper operation of the radar sensor. a. Verify power source is supplying correct voltage. b.
Global Water 800-876-1172 • globalw.com e. When calling for tech support, please have the following information ready: 1. 2. 3. 4. 5. XIII. Model #. Unit serial number. P.O. # the equipment was purchased on. Our sales order number or the invoice number. Repair instructions and/or specific problems relating to the product. Warranty a. Global Water Instrumentation, Inc.
