Spectrex Quasar 900 Open-Path Gas Detection System - Manual (Page 50)

SafEye TM Quasar 900 Gas Detector
38 Powering up the System
3 Install the Telescope Assembly (12) on the detector/source front. Fasten
the Telescope with Fastening Screws (13).
4 Crude Alignment
a Use ¼” Allen screw driver for all alignment screws
b Loosen screws 5, 6
c Approximately aim the source horizontally toward the detector
d Tighten screw 6
e Loosen screws 3, 4
f Approximately aim the source vertically toward the detector
g Tighten screw 3
5 Repeat step 4 for the Detector
6 Fine Alignment
a Aim the Source to the Detector within horizontal axis using screws
7. Aim the cross to the detector or source center of the front
window (see figure 1 & 2 item 8).
b Tighten screw 5
c Aim within the vertical axis using screw 8
d Tighten screw 4
e Make sure the telescope cross is pointing to the detector and
source center of the window
7 Repeat step 6 for the Detector alignment
8 Remove the telescope. Install the front shield.
6.3 Powering up the System
Important! Prior to any operation or maintenance, follow the Safety
Precautions, page 39.
➣ To power up the system:
1 Make sure that the Source and Detector are connected to power.
2 Make sure that the 4-20mA meter is connected to the Detector.
3 Power up the system 18-32VDC.
4 After 60 seconds, the current meter will indicate 4mA.
Note: Zero calibration should be performed after powering up the system
(see Zero Calibration, page 40).