[Instructions] NU-1550 Tank Switch

NuAire Laboratory Equipment Instructions

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IN0040 | Rev 4 February/2018 Page 1 of 6 NuAire, Inc. | 2100 Fernbrook Lane | Plymouth, MN 55447 | U.S.A | ph: 763.553.1270 | fx: 763.553.0459 | tf: 800.328.3352 | ACCESSORY INFORMATION NU-1550 Tank Guard™ AUTOMATIC TANK SWITCH OPERATION & INSTALLATION INSTRUCTIONS OPERATION The TankGuard™ automatic tank switch has been designed to provide reliable service to perform the critical backup gas (i.e. CO2, N2) tank switch for a tissue cell culture incubator. The TankGuard™ tank switch continuously monitors and indicates the selected source gas tank and the status of the non-selected or secondary source gas tank. If the selected source gas tank pressure falls below 8 PSI, the selected source internal pressure switch will detect the low pressure and automatically change sources. During the automatic change, as audible alarm will sounds for 5 seconds, then ring back one every ten seconds (to silence, press either source key to acknowledge the tank switch occurrence). The green LED for the new source will blink and the original source red LED will indicate an empty tank.

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