7
5. Installation
The detector is constructed with main instrument and gas sensor.
5.1 Main instrument installation
5.1.1 Notice
You can not use at a place like below.
1) The place where the voltage of instrument power is very fluctuate,
2) The place where dusts or corrosion gases are remained
3) The place where the ambient temperature is above 50
℃
or below 0
℃
4) The place where the mechanical vibration or the shock are existed
5) The place near the high current circuit or where high induction interference is existed, an instrument
and a sensor circuit may keep away above 30 cm from the high current or the high voltage circuit,
because it makes induction interference and it would be an indication error and unstableness of
indication.
5.1.2 Installation method
1) You may make a panel cut of 34
×
137 mm. If you install above two instruments, you may keep the
distance between panel cuts. (Refer to fig. 3.1)
2) You may insert an instrument to panel cut,
You may insert a panel for separation of instruments
3) You may insert a mounting bracket at an upper and a lower of instrument, and fix an instrument
4) If you need to stand instruments in a low, you may let the common alarm unit to the very left side.
5) A common alarm unit is used at many detectors commonly.
Fig. 5.1 The shape of GM-1000, Panel cut
n= 1
∼
5 :
α
= 1
n= 6
∼
10 :
α
= 2
n= 11
∼
15 :
α
= 3
•
•
•
•
•
•
•
•
•
•
•
•
137
60
(36 × n – 3) +
α
n: amount of indicator and alarm unit
When you mount this indicator to the panel,
the panel cut size is (36 × n – 3) +
α
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