Calibration Overview; Recommended Equipment; Warm-Up - ILX Lightwave OMM-6810B User Manual

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This chapter describes how to maintain the OMM-6810B.

Calibration Overview

It is possible to field calibrate the OMM-6810B with a measurement head attached
using a source of known wavelength and/or power. It is recommended that the
6810B be electrically recalibrated every year to maintain accuracy over the entire
dynamic range. Calibration services are available through ILX Lightwave.
The User Calibration is unique to each measurement probe or head. The
Calibration procedure is described in Chapter 6 of the instruction manual for the
optical measurement head.

Recommended Equipment

The equipment needed for calibration is dependent upon the type of head being
used with the 6810B. For heads requiring wavelength calibration, gas line
sources such as HeNe at 632.8 nm or spectral lamps with the proper line isolation
filters work well. For power calibration, a stable source with a known wavelength
is required. If a laser diode is used, the wavelength must be stable as changes in
wavelength will effect the power calibration. For calibration of a thermal head,
wavelength accuracy and stability is not as important as the response is relatively
flat over the entire wavelength range.

Warm-up

The OMM-6810B with Optical Measurement Head attached should be allowed to
warm up for at least 1 hour before calibration.
C H A P T E R
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AINTENANCE
OMM-6810B
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