Teledyne 3000ZA - Trace oxygen analyzer - Manual (Page 28)

Installation 3000ZA
Teledyne Analytical Instruments 16
3.3 Rear Panel Connections
Figure 3-3 shows the Model 3000ZA rear panel. There are ports for
gas, power, and equipment interface. The Zero In and Span In ports are
not included on the standard model but are available as options.
Figure 3-3: Rear Panel of the Model 3000ZA with Span and Zero Ports
3.3.1 Gas Connections
Before using this instrument, it should be determined if the unit will
be used for pressurized service or vacuum service and low pressure
applications. The kit included with the instrument contains two
restrictors and a union for 1/4” diameter tubing. Notice that there are
two 1-3/4” long, 1/4” diameter restrictors. There is an open end and a
closed end with a small circular orifice. The restrictor without the blue
sticker is for low pressure applications and vacuum service. For high