Abstract:
The invention presents rapid means for maintaining absolute scale accuracies of the three filter parameter Colormaster while adding, for example, 16 additional filter parameters. Application to both fluorescent type and non-fluorescent type instrumentation is included.
Abstract:
A three way valve having ports No. 1, No. 2 and No. 3 is connected to a flow regulator for a moisture analyzer. Port No. 1 is the inlet port for gas. Port No. 2 is connected to the inlet of the flow regulator. Port No. 3 is connected to the outlet of the flow regulator before a needle valve which connects to the moisture analyzer. The three way valve has two positions. In one position it is connected from port No. 1 to port No. 2 and port No. 3 is closed. In the other position it is connected from port No. 1 to port No. 3 and port No. 2 is closed.