HygroCal100 User’s Manual
Michell Instruments
25
OPERATION
3.5 Port Adaptors
The HygroCal100 is fi tted with 8 M30 probe test ports. Each of these is fi tted with an
adaptor to convert it to one of a variety of probe tube diameter sizes.
Figure 28
Port Adaptor
The HygroCal100 is supplied with your choice of port adaptor size - additional adaptors
can be ordered.
Port adaptors suitable for the following probe sizes are available:
Probe Diameter Order Code
12mm (0.47") A000291
13.5mm (0.53") A000292
14mm (0.55") A000293
15mm (0.59") A000294
18.5mm (0.73") A000295
19mm (0.75") A000296
24mm (0.94") A000297
25mm (0.98") A000298
Table 7 Port Adapter Order Codes
Adaptors can be installed or removed using the Port Adaptor Tool (A000265). Take care
to ensure that the port adaptor is properly aligned with the thread before tightening.
Figure 29
Port Adaptor Tool
3.6 Probe Installation
3.6.1 Chamber Connection
To install a probe into the HygroCal100 chamber, fi rstly ensure that you have the correct
port adaptor size for the diameter of the probe.
1. Remove the blanking plug from the port adaptor and keep it safe.
2. Install the probe into the port adaptor - ensure that the probe is inserted
as far as possible into the chamber as is possible while maintaining a
good seal to the sensor body tube.
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