AW-Lake RT-50 Installation Operating & Maintenance Manual

Dc/loop flow transmitter

Hide thumbs

Table Of Contents

Table of Contents

Quick Links

Download this manual

RT-50 DC/Loop Flow Transmitter

Installation, Operating &

Maintenance Manual

Table of Contents

Need help?

Do you have a question about the RT-50 and is the answer not in the manual?

Questions and answers

Summary of Contents for AW-Lake RT-50

Page 2: Table Of Contents
Table of Contents Unpacking ..................3 Quick Start Guide ................3 Power ..................3 Installation ..................3 Product Description ................. 3 Technical Specifications ..............4 Part Number Guide .................4 Wiring Connections ................. 5 Power Supply ..................6 Isolated Outputs ..................6 Analog Outputs ..................7 Navigational Buttons ................
Page 3: Unpacking
Power Depending on version, the RT-50 can be powered with 24 Volts DC or can be loop powered. Please check model number code to verify version type. For DC, Power can be applied to pins 13 & 14. For Loop, apply power to pins 11 & 12.
Page 4: Technical Specifications
Technical Specifications Ambient Temperature Frequency Output -4°F to +185°F (-20°C to +85°C) Isolated output, matches sensor output Supply Voltage Range Linearizer 24VDC or 4-20mA Loop 10-point programmable linearizer Analog Outputs Communication Lithium coin battery 3V. (CR2032) Bluetooth and Modbus 4-20mA and 0-5V/1-5V Response Time Limits 25 mSec...
Page 5: Wiring Connections
Wiring Connections Isolated Outputs Power and Comms Sensor • Limit 2 • RS485 B • External 5V (Sensor Power +) • Isoltated Limit 1 • RS485 A • Sensor Input • 0V • Loop + / I-out + • Ground (Sensor Ground) •...
Page 6: Power Supply
Power Supplies (Dependent on Variant) DC Powered: Voltage: 12 to 27V DC Current: < 100mA Loop Powered: Voltage: 12 to 27V DC Current: < 24mA Isolated Outputs The Isolated outputs require separate power. Voltage: 12 to 27V DC Current: < 10mA Digital Input: Input series resistance: 3.3 kΩ...
Page 7: Analog Outputs
Analog Outputs Passive 4-20mA (Sinking) and Loop Powered Loop Compliance Voltage: 12 to 27V *Note that Loop Return is at different potential to 0V Active 4-20mA (Sourcing) Output: Voltage on Output Terminal MAX: 12 to 27V (DC Supply voltage) Output series resistance: 30 Ω 0 –...
Page 8: Navigational Buttons
Navigational Buttons Left & Right Arrows Allows user to switch between flow monitoring displays (ex. Rate, Total, Grand total screen) Also allows user to move left and right when entering values. Up & Down Arrows Allows users to move up and down when in the menu structure. Also used to increase and decrease values in programmable fields.
Page 9: Run Mode Screens
Run Mode Screens There are 7 Run modes screens which include Home, Rate, Total, Grand Total, Analog Out, and Bluetooth. To move from one screen to another simply press the right or left arrow buttons. At the bottom of the run mode screens there are two fast key options, F1 and F2.
Page 10: K-Factor
The K-factor is what links the flow display to the meter. Each meter has a specific number of pulses that equals a unit of measure, the RT-50 uses pulses per gallon. In the main menu press Enter on K-Factor (PPG) and Figure 3 using the direction buttons enter in the k-factor from the calibration sheet in pulses per gallon.
Page 11: Contract Time
Contract Time The Contract time allows the user to log totals and grand totals daily. The user will designate a specific time in which they would like the totals to be logged. The user also has the option for the display to automatically reset the total at this time.
Page 12: Input/Output
Input/Output The Loop and DC versions of the RT-50 have 2 isolated limit outputs, 4-20 ma outputs, Voltage Output (DC version only), and an input filter. See page 6 for wiring and circuit specifications. Limits – Can be set to trigger from a Total, Grand Total, or Rate. When the setpoint is reached the limit will trigger.
Page 13: Bluetooth
Mobile Bluetooth App First download the free app from the apple or google play store. Before connecting to the RT-50, the user must navigate to the Bluetooth screen on the device and enable pairing mode. This is done by hitting Enter. User will then have 5 minutes to connect to the device.
Page 14: Menu Navigation
Menu Navigation Press the three lines in the top right corner to access menu System Settings: Adjust K-factor, Max Flow Rate, Filter, Time Base, Flow Units, and Bluetooth name Output Setting: Allows user to change Analog Outputs and Force a specific analog output.
Page 15: System Settings
System Settings This menu allows users to scale the RT-50 to display correct flow rate in the desired units and time base. It will also allow for filtering of the output. *After any option is changed press SET for it to take effect.
Page 16: Output Settings
Output Settings Forced Outputs: This menu will provide the option to force one or both outputs to a certain value. Along with this ability, Voltage output type will also be selectable. (Figure 14) To activate, Move the slider to the right. Enter in desired forced output and press SET to store information.
Page 17: Limit Settings
1. Select which output type to be calibrated; mA or Voltage 2. Press Set Output Low, then enter in the value on user’s device into Record Reading a. Ex. If EDGE is being calibrated to a multimeter, enter reading from multimeter to Record Reading 3.
Page 18: Linearizer
Linearizer The linearizer function is designed to correct for devices that will vary in a nonlinear way as a device changes in flow/frequency. It can take nonlinear input and change it to a more linear analog output. There is a maximum of 10 points that can be entered.
Page 19: Device Log
Device Log This menu is used in correspondence with the Contract time located in the Date/Time menu. A user can set a designated contract time, and at this designated time the unit will save the Total and Grand total in a table. This menu allows the user to view those results.
Page 20: Compter Toolkit
The Toolkit can be used to set up all parameter of the device and view flow rates. This Toolkit also allows the user to update firmware as new releases become available. In order to connect the RT-50 device to the computer a separate cable will need to be purchased from AW-Lake Company. The Toolkit can be found on our webpage under the Downloads tab or by following this link: https://aw-lake.com/aw-lake-toolkit/...
Page 21: Updating Firmware
Figure 20 Upgrading Firmware To upgrade firmware on the device, click the advance tab and select Upgrade Mainboard Firmware. The correct file should automatically be selected. Start Upgrade and wait until complete message appears. Figure 21...