Global Water 800-876-1172 • globalw.com Global Water Instrumentation, Inc.
Global Water 800-876-1172 • globalw.com Congratulations on your purchase of the Global Water EZ100 Display. This instrument has been quality tested and approved for providing accurate and reliable measurements. We are confident that you will find the EZ100 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. EZ100 Checklist a. Display b. EZ100 Manual c. Two 9V batteries (Inside case) II. Inspection a. The EZ100 unit was carefully inspected and certified by Global Water’s 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. Use the checklist to ensure that everything needed to operate the EZ100 was received.
Global Water 800-876-1172 • globalw.com III. Display Installation a. The Display is designed for handheld applications, however there are four holes in the back of the case that may be used to mount the unit to a flat surface (screws not included.) b. If the Display is mounted insure that it is located in an area that is protected from direct rainfall and immersion in water. The Display is water resistant, not water proof. c.
Global Water 800-876-1172 • globalw.com Two wire sensor attachment b. Unscrew the four bolts in the cover to access the internal terminal strip. Disconnect one of the batteries. Orient the unit with the terminal block at the top, see appendix C. Attach the positive voltage wire to terminal #1. Attach the signal wire to terminal #2. Reconnect the battery. See appendix A for Display calibration instructions. Three wire sensor attachment c.
Global Water 800-876-1172 • globalw.com VI. Trouble Shooting Issue: Display not reading correctly a. Verify battery voltage (see maintenance section). b. Recalibrate sensor to Display using appendix A. Other issues c. Call us for tech support: 800-876-1172 or 916-638-3429 (many problems can be solved over the phone). Fax: 916-638-3270 or Email: globalw@globalw.com.
Global Water 800-876-1172 • globalw.com VII. 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’s obligations under this warranty are limited to, at Global Water’s option: (I) replacing or (II) repairing; any products determined to be defective. In no case shall Global Water’s liability exceed the products original purchase price.
Global Water 800-876-1172 • globalw.com VIII. Appendix A: Display Calibration a. Remove the front cover of the EZ100 to show the rear of the display. b. The Display must be connected to a 4-20mA sensor or current loop meter to work properly. c. Use the following diagram and tables to determine the correct DIP switch settings for the attached sensor. Figure 2.
Global Water 800-876-1172 • globalw.com e. Set DIP Switches 6-8 to place the decimal point in the correct position according to the following table: Decimal Location SW6 SW7 SW8 9999 Off Off Off 9.999 On Off Off 99.99 Off On Off 999.9 Off Off On f. Set up the sensor for its minimum output current or put the current loop meter in “Simulate” mode and set it for the minimum output current of the sensor that will be connected to the EZ100 (4.000mA, 3.986mA, etc).
Global Water 800-876-1172 • globalw.com IX. Appendix B: External Power and Recording Devices a. Use the following instructions to connect an external source that will allow the display and sensor to be powered continuously: 1. Remove both 9 VDC batteries. 2. Remove the battery leads from terminals T1 and T2 (see Figure 1 on page 5). 3. Drill a hole in the bottom of the case next to the sensor wire for a power wire to pass through. Run all external wires through this hole. 4.
