Step 2 –install the remote sensor
The Model 7100E is supplied with one (1) Model ZR-400E oxygen sensor assembly (Figure 9), one (1)
sensor interface cable, and one (1) sensor flow-through head for connection to a sampled process gas
stream (if required). The Model 7100E can also be supplied with a Neutronics Inc. process Sampling
system, built-to-application. For detailed instructions on remote sensor installation with a Neutronics Inc.
Process Sampling System, please refer to the appropriate equipment manual.
3.1.2.1 Flow-through head
Surface-mount the flow-through head horizontally (as shown in Figure 10) or vertically on a stationary
panel. The sensor flow-through head is 1.25" diameter stainless steel, and is machined to accommodate
two #6-32 machine-type mounting screws (1-inch on center). Be careful not to over tighten the mounting
screws. Allow sufficient space to screw the Model ZR-400E oxygen sensor into the top threaded port of
the flow through head, and for the sample lines and sample inlet and exhaust fittings.
Fig. 9, sensor assembly (shown with KF fitting and short
tongue/diverter vane configuration)
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