Chapter 1. Features And Capabilities; Introduction; Electronics Enclosure - GE Optica Operator's Manual

Chapter 1. Features and Capabilities

1.1 Introduction

The GE Measurement & Control Optica is a multi-purpose chilled-mirror hygrometer, suitable for use in a wide variety
of applications. The Optica can function with any GE Measurement & Control chilled-mirror sensor to provide the
following measurement ranges (depending on the sensor selected):
•
Dew/frost point from –80°C to +85°C (–112°F to +185°F)
•
Relative humidity from 0.002% to 100%
•
Moisture content from 500 ppb
•
Temperature from -100°C to +100°C (-212°F to +212°F)
The Optica also measures and displays gas pressure using a GE Sensing PT-30A or PT-300A pressure sensor, or a
user-supplied 4–20 mA or 0–5 VDC pressure sensor.
Note: If the pressure is known to be constant, a fixed pressure can be programmed, eliminating the need for a
pressure sensor.
Using the Optica, you can simultaneously measure and display dew point, temperature and pressure, with a wide
variety of units of measure. The Optica is Ethernet-ready, so you can access the unit using the Internet for remote
monitoring applications. You can use the data logging function to record and upload weeks of data.

1.2 Electronics Enclosure

The Optica is available in two configurations:
•
A benchtop model, with an optional rack-mount adapter available
•
A wall-mount unit, housed in a Type 4 enclosure, suitable for industrial environments
See Chapter 2, "Installation" for details on how to mount the Optica.
Optica™ Operator's Manual
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to over 5.71 × 10 ppm
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Chapter 1. Features and Capabilities
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