CI-154 User’s Manual
Page 5
The CI-154 has been designed to provide rugged, long-term performance. The laser
diode light source is controlled with a closed loop drive circuit to maintain a constant
intensity over time and temperature variations. The status of the laser power is
monitored and displayed as OK or LOW on the main screen. If the laser power falls
below 90%, a LOW status is displayed. The rugged laser diode light source, along
with the stability of the optics and detection electronics, provides for overall
consistent performance. Given the stability of the laser diode control circuitry and
amplifier circuits, the CI-154 requires routine calibration only once every 12 months.