D.2 Connecting the Standard instrument’s backing pumpThe Standard instrument uses a diaphragm pump attached to the back of the instrument.Note: To connect the Performance instrument’s backing pump, see Connecting the Performanceinstrument’s backing pump.Required materials• Chemical-resistant, powder-free gloves• Phillips screwdriver• Diaphragm vacuum hose (included in the installation kit)Warning: To avoid personal contamination with biohazardous or toxic compounds, wear clean,chemical-resistant, powder-free gloves when performing this procedure.To connect the diaphragm pump:1. Hook the pump onto the 3 diaphragm pump supports on the rear of the instrument, shownin the figure "Rear panel connections" (see External wiring and vacuum connections).2. Secure the pump to the instrument using the 2 screws and tighten them using the Phillips(cross-head) screwdriver.3. Connect the length of diaphragm pump vacuum hose in step 2 to the 1-inch OD straightvacuum port on the instrument’s rear panel.Notice: The instrument requires two separate exhaust systems: one fornitrogen, the other for the backing pump. Vent them to atmosphere throughseparate exhaust lines. Oil mist can severely damage the instrument if thenitrogen exhaust line connects with the backing pump exhaust line. Yourwarranty does not cover damage caused by routing exhaust lines incorrectly.4. Route the open end of the exhaust tubing to a suitable exhaust vent.5. Connect the diaphragm pump cable to the backing pump connector on the instrument’srear panel shown in the figure "Rear panel connections" (see External wiring and vacuumconnections).Requirement: When using the diaphragm pump, ensure that the 0.09-mm entrance-aperture disc is installed.June 15, 2017, 715003956 Rev. FPage 84
