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Transmission Contact Switch <br />• Automatic telephone dialer: <br />❑ Typically requires only a contact switch to activate <br />dialing function. <br />❑ Is plugged (or wired directly) into an electrical out- <br />let for power source. <br />• Dialer power source is not supplied by control panel. <br />❑ With power to control panel, normally -closed con- <br />tacts are at terminals 3 and 4. <br />❑ Terminals will open - providing the switching mecha- <br />nism to activate dialer - when control panel goes <br />into alarm mode. <br />Model SBOOIIC Shown <br />o <br />o� o <br />Power Circuit SensorCircuit <br />(ro 120 Volts AC) To Ground Contact (To Sensor Assembly) <br />Switch Circuit <br />Power Circuit Automatic Telephone <br />(To 120 Vohs AC) Phone Dialer Line <br />Power Source Switch <br />Do not place intrinsically safe sensor <br />AWARNING wiring in the same conduit as non - <br />intrinsically safe wiring. <br />CAUTION: Place wiring in watertight conduit and junc- <br />tion boxes (to maintain leak detection capability). <br />• Typical wiring diagram is provided for accessories re- <br />qulrmg power such as light beacon. <br />Cl Contacts (see Figure B, page 30) can provide 120 <br />volts AC. <br />❑ Optional warning device must berated for 300 watts <br />or less. <br />D5. Alarm Bell Silence Button <br />• Depress Bell Silence Button on control panel to silence <br />alarm bell. <br />❑ The alarm bell will activate again if second alarm <br />condition occurs. <br />D6. Normal Operation <br />• If "NORMAL" light is continuously illuminated, it means <br />liquid level is in normal range. <br />18 <br />• Inner and outer walls are leak -free if liquid level in reser- <br />voir is stable. <br />• Liquid level in reservoir will fluctuate as the tempera- <br />ture of incoming stored product changes. <br />• Reservoir is designed to provide adequate capacity for <br />normal thermal expansion and contraction. <br />D7. Testing and Maintenance <br />Important: Check control panel warning system at least <br />once per year. <br />• Depress "TEST BUTTON" switch on front of control <br />panel to verify that each internal circuit is operational. <br />❑ This does NOT test operation of monitoring sensors. <br />• Use troubleshooting guide (See Figure A, page 29) to <br />diagnose faulty circuit in control panel. <br />• Contact Fluid Containment Field Service for control Panel <br />replacement parts. Phone number listed on page 2. <br />D8. Leak Detection <br />• In the unlikely event reservoir totally drains: <br />❑ Control panel alarm will activate. <br />❑ Warning light will illuminate. <br />❑ Alarm bell will sound. <br />❑ Transmission contacts will activate any accessory <br />alarm device. <br />• Alarm bell can be silenced by pushing Bell Silence But- <br />ton. <br />❑ "WARNING" light will remain on. <br />❑ "NORMAL" Light is off. <br />• See section C8 - Reservoir Leak Detection. <br />D9. Control Panel False Alarms <br />• Occur when panel goes into alarm mode, but reservoir <br />liquid level is still in normal range. <br />• Typically result from failure of an electronic component <br />inside control panel. <br />• To maintain the "NORMAL" condition: <br />❑ All electronic components must function properly. <br />❑ Any electrical component failure will result in an <br />"ALARM" condition. <br />Important: Refer to troubleshooting guide on page 29 <br />to identify specific problem. <br />�J <br />�J <br />