Sentry 5000-32-IT Controller
Page 24 of 82
3
SAFTEY NOTES
3.1
Introduction
Although the Controller is designed and constructed for installation and operation in industrial applications
including "hostile" environments, caution should be taken to ensure that the installation is made in
compliance with this instruction manual and that certain procedures and conditions are avoided. This
chapter discusses the necessary cautions. Read the entire chapter prior to installation of the equipment.
3.2
Controller
The controller should be installed in a location which is safely accessible during a gas alarm.
Avoid installing the controller where it will be unnecessarily exposed to wind, dust, shock/vibration, rain
(water) or direct sun. Observe temperature range limitations.
Adhere to National Electric Code standard electrical installation procedures. The chassis ground on the
controller must be connected to earth ground.
3.3
Wiring
While the digital and analog communication methods used between the controller and gas sensor
modules will greatly reduce problems associated with electromagnetic and radio frequency interference
the manufacturer recommends that extra caution be taken where the installation is near any sources of
these interferences:
•
Avoid running sensor module cable close to high power cables, radio transmission lines, or
cables subject to pulses of high current
•
Avoid running cables near large electric motors or generators
•
Use shielded cables of the type specified in the sensor module instructions
o
In conduit installations the shield should be connected to the conduit
o
In cable applications the shield should be connected to the cable connector
•
All splices must be via compression connector or soldered
– improperly spliced cable can result
in corrosion, resistance changes and system errors
Содержание Sentry 5000-32-IT
Страница 28: ...Sentry 5000 32 IT Controller Page 28 of 82 Figure 15 Analog Input Wiring ...
Страница 29: ...Sentry 5000 32 IT Controller Page 29 of 82 Figure 16 PSG Sentry Classic Wiring ...
Страница 30: ...Sentry 5000 32 IT Controller Page 30 of 82 Figure 17 Modbus Wiring ...
Страница 31: ...Sentry 5000 32 IT Controller Page 31 of 82 Figure 18 Top Board Relay Digital Output Wiring ...
Страница 32: ...Sentry 5000 32 IT Controller Page 32 of 82 Figure 19 Analog Output Wiring ...
Страница 33: ...Sentry 5000 32 IT Controller Page 33 of 82 Figure 20 Digital Input Wiring ...
Страница 34: ...Sentry 5000 32 IT Controller Page 34 of 82 Figure 21 Bottom Board Relay Wiring ...
