Global Water FC220 Manual page 19

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. If water gets into the vent tube the water level readings can show very
large errors and can be erratic. If water gets into the vent tube of the cable
place it next to a heater for 24 hours to dry the inside of the cable.
Other issues
a. Call Global Water 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.
When calling for tech support, please have the following information
ready;
1. Model #.
2. Unit serial number.
3. P.O.# the equipment was purchased on.
4. Our sales number or the invoice number.
5. Repair instructions and/or specific problems relating to the
product.
Be prepared to describe the problem you are experiencing including
specific details of the application, installation, and any additional
pertinent information.
b. In the event that the equipment needs to be returned to the factory for any
reason, please call to obtain an RMA# (Return Material Authorization).
Do not return items without an RMA# displayed on the outside of the
package.
Clean and decontaminate the FC220 if necessary.
Include a written statement describing the problems.
Global Water
800-876-1172 • globalw.com
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