SafEye
™
™
Series 200 IR Gas Detector - User’s and Maintenance Manual
SPETCREX INC.
Doc. No. TM792100, Rev. B, Oct 1997
- 45 -
3. 3. Powering on the system
Important !
Prior to any operation or maintenence follow the
Safety Precautions given at section 3.4.
1.
Make sure that the source and detector are connected to the 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 right LED lights at green, the current meter will indicate
4mA.
Note:
If it is the first operation after installation, the LED may
indicate any status. Zero calibration should be performed
after powering the system (see section 3.4).
3. 4. Safety Precautions
After powering-up, the detector requires minimal attention in order to function
properly, but the following should be noted:
a.
Caution!
Avoid Looking directly into the flash radiation source. The UV light
pulses may cause damage to the eye’s retina when exposed from a short distance
for a prolonged period of time.
b. Follow the instructions in the manual and refer to the drawings and specifications
issued by the manufacturer.
c. Do not open the detector housing, while power is supplied.
d. Do not touch internal parts other than the two functional switches. Interference
with internal circuits may impair detector performance and will invalidate
manufacturers warranty.
e. Disconnect external devices, such as automatic extinguishing systems before
carrying out any maintenance task.
3. 5. Zero Calibration
Precise alignment must be performed prior to the calibration procedure. Calibration
should be performed in nice weather conditions with insignificant gas concentrations
in the surrounding environment or indoors.
Note:
To change modes, place the Magnetic Mode Selector (see Figure 3-1, item 1)
on the detector for 2 seconds and wait for the LED indication. After mode
change allow a time lapse of 5 seconds before changing mode again. Standby
mode is a temporary mode lasting about 20 seconds used to facilitate Zero
Calibration mode selection. If the mode selector is not placed during this 20
seconds period, the detector will be switched to Normal mode.
