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, F: (979) 690-0440 E-mail : globalw@globalw.
Global Water 800-876-1172 • globalw.com Congratulations on your purchase of the Global Water FC220 Flow Monitor. This instrument has been quality tested and approved for providing accurate and reliable measurements. We are confident that you will find the monitor to be a valuable asset for your application. Should you require assistance, our technical staff will be happy to help. Table of Contents • • • • • • • 5 Flow Calculation Modes • • • • • 6 Switch Settings • • • • • 8 V.
Global Water 800-876-1172 • globalw.com I. FC220 Flow Monitor Description The Global Water FC220 Flow Monitor is a reliable and accurate instrument for measuring and totalizing water flow in a wide variety of applications. Water level is measured using Global Water’s popular WL400 level sensor, WL700 ultrasonic sensor, or almost any other 4-20mA, 0-5V or 0-1V water level sensor. Flow is then calculated by the microprocessor using a variety of different techniques.
Global Water 800-876-1172 • globalw.com Four independent relay outputs are provided for triggering external devices like water samplers and monitoring devices. These relays can be separately programmed to trigger based on volume per pulse, and threshold settings can be used to limit triggering to flows above preset levels. There is also an accurate and scalable 4-20mA output provided for monitoring flow using data loggers and PLC devices.
Global Water 800-876-1172 • globalw.com II.
Global Water 800-876-1172 • globalw.com III. Flow Calculation Modes The FC220 determines flow from water level in several different ways. Standard flow equations, Manning’s Equation, polynomials or a lookup table can all be used. The following equation formats calculate flow in cubic feet per second based on the measured water level in feet. A conversion is made by the microprocessor so that the display and 4-20mA output work in the user defined flow units.
Global Water 800-876-1172 • globalw.com In these modes the user is either prompted to enter the pipe diameter or rectangular channel width, in user programmable units. The WA and WP are automatically calculated based on the diameter or width, and the measured water level. The roughness factor is determined by the construction material, typical values are: 0.010 0.012 0.013 0.013 0.013 0.014 0.014 0.017 0.
Global Water 800-876-1172 • globalw.com IV. Switch Settings Inside the FC220 is a bank of 8 switches which are used to select the sensor type and power input. Select the switches as follows: Select only one of SW1 and SW2, leave the other switch off SW1: ON, Sensor power is 12 volts SW2: ON, Sensor power is 18-24 volts depending on the voltage input to the FC220.
Global Water 800-876-1172 • globalw.com V. Sensor Input The FC220 accepts any water level sensor with a 4-20mA, 0-5VDC or 0-1VDC output. Available power for the sensor depends on the power input to the FC220. When powering the FC220 from 12 volts, the sensor power is also 12 volts. If you are running from a power supply of 18-24 volts, the sensor power can be selected from either a regulated 12 volt supply, or directly from the 18-24 volt input.
Global Water 800-876-1172 • globalw.com VIII. Power Saving Mode A power saving mode is provided that allows the operating current to be reduced in remote monitoring applications. One way this is accomplished is to turn off the LCD display backlight, this saves about 20mA of current. Three modes allow the user to turn the backlight on all the time, off all the time, or turn it on for one minute only.
Global Water 800-876-1172 • globalw.com 5 selectable volume units. The engineering notation is automatically switched on when the totalizer volume exceeds the capacity of the 9-digit display. The totalizer reset function is password protected, preventing a user from entering the reset menu. This menu also allows the user to change the password. The password is 4 digits in the range of 0000-9999. When shipped from the factory the default password is 1234.
Global Water 800-876-1172 • globalw.com Set Volume Unit: This unit is used to display the totalizer volume on the main display. The current setting is shown in the Set Volume Unit menu. Use the RIGHT arrow to change the volume units. Use Up and DOWN to select either Cubic Feet, Gallons, Million Gallons, Cubic Meters, or Liters. Press SAVE to store. Set Time Unit: This unit, combined with the volume unit from the previous menu, is used to determine the flow unit on the main display.
Global Water 800-876-1172 • globalw.com RIGHT arrow to move to the level unit, the units will flash. Use UP and DOWN to select the unit that corresponds to the high level that was just set. Press SAVE to store these settings. Press MENU to move forward. Press the SAVE button to store the raw data value for the high level sensor output. Press MENU to move to the level offset option. The level offset is added to (or subtracted from) the measured water level to correct for errors in installation.
Global Water 800-876-1172 • globalw.com Set Site Info: The Site Info menu is where the type of flow monitor calculation is defined. A 16 character site name or label can also be added for reference. The current site name is shown in the Set Site Info menu. To change site information press the RIGHT arrow button. Change the site name in the first sub-menu. Use the LEFT and RIGHT arrows to select a character and then scroll through available characters using UP and DOWN.
Global Water 800-876-1172 • globalw.com width of the rectangular channel. Use the RIGHT arrow to advance to the units until they flash, use UP and DOWN to select the unit and press SAVE to store the settings. Standard Flow Equation: The water flow through most or all flumes and weirs can be described by the equation shown above. Use the MENU, arrow buttons and SAVE to set the parameters A - D. Not all flow equations require all 4 coefficients. If B is not used enter 0.000, if C is not used enter 1.
Global Water 800-876-1172 • globalw.com Power Saving Mode: The power saving mode allows the average power consumption to be reduced by controlling the time when the water level sensor and LCD backlight are turned on. To set the power saving parameters, press the RIGHT arrow button.
Global Water 800-876-1172 • globalw.com Totalizer Reset: The Totalizer Reset menu allows the totalizer to be reset to zero. The reset is password protected. This menu also allows the password to be changed. When shipped from the factory the password is set to 1234. Press the RIGHT arrow to enter the password. Use the LEFT and RIGHT arrows to select each digit, and use UP and DOWN to scroll through the numbers. Press MENU to move forward provided that the password was entered correctly.
Global Water 800-876-1172 • globalw.com XIII. Maintenance and Troubleshooting a. Global Water recommends verifying the sensor’s calibration every 6 months. b. The screen on the end of the sensor must be periodically checked for clogging from mud, sludge, and other debris. Wash the screen with clean water and/or scrub it gently with a toothbrush. Do not insert objects through the screen, as this may cause damage to the sensor. c.
Global Water 800-876-1172 • globalw.com See Appendix A. Warning: Always connect the sensor with the power turned off. At zero feet (out of water), the sensor should output approximately 4mA. This can be read directly on the current meter or, if using the voltmeter method, the meter should read 0.5 volts across a 125 ohm resistor. At the maximum water depth of the sensor, the sensor should output approximately 20mA or 2.50 volts across the 125 ohm resistor. Issue: Water in the vent tube a.
Global Water 800-876-1172 • globalw.com Send the package with shipping prepaid to our factory address. Insure your shipment, Global Water’s warranty does not cover damage incurred during transit. Warranty a. Global Water Instrumentation, Inc. warrants that its products are free from defects in material and workmanship under normal use and service for a period of one year from date of shipment from factory.
Global Water 800-876-1172 • globalw.com XIV.
Global Water 800-876-1172 • globalw.com XV: Appendix B: Flume and Weir Equation Parameters EQ Type: A 1 = Flow 2 = Poly Q=A*(B+Ch)^D Q=A+Bh+Ch^2+Dh^3 B C Flumes EQ Type 0.5 H Flume 0.75 H Flume 1.0 H Flume 1.5 H Flume 2.0 H Flume 1 1 1 1 1 1.600 1.770 1.950 2.120 2.370 0.000000 0.000000 0.000000 0.000000 0.000000 1 1 1 1 1 2.200 2.230 2.300 2.300 2.
Global Water 800-876-1172 • globalw.com Weirs EQ Type A B C D 1.0' Rectangular 2.0' Rectangular 3.0' Rectangular 1 1 1 3.333 6.667 10.000 0.000000 0.000000 0.000000 1 1 1 1.500 1.500 1.500 22.5º V-Notch 30º V-Notch 45º V-Notch 60º V-Notch 90º V-Notch 120º V-Notch 1 1 1 1 1 1 0.505 0.676 1.028 1.420 2.490 4.333 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 1 1 1 1 1 1 2.500 2.500 2.500 2.440 2.475 2.500 0.5' Cipolletti 1.0' Cipolletti 1.5' Cipolletti 2.
