Spectrum Controls 1734sc-OE2CIH - Manual (Page 17)

Chapter 2: Installation and Wiring 2-3
User’s Manual Pub. 0300272-01 Rev. A.0
WARNING Explosion Hazard

Substitution of components may impair suitability for Class
I Division 2.

Wear an approved wrist-strap grounding device.

Do not touch the backplane connector or connector pins.

Do not touch circuit components inside the module.

If available, use a static-safe work station.

When not in use, keep the module in its static-shield box.
2.3.2 Prevent Electrostatic Discharge
WARNING Hazard of damage to equipment.
Electrostatic discharge can damage integrated circuits or
semiconductors if you touch analog I/O module bus connector
pins or the terminal block on the input module. Follow these
guidelines when you handle the module:

Touch a grounded object to discharge static potential.

Wear an approved wrist-strap grounding device.

Do not touch the bus connector or connector pins.

Do not touch circuit components inside the module.

If available, use a static-safe work station.

When not in use, keep the module in its static-shield box.
2.3.3 Remove Power
WARNING Hazard of injury to personnel or damage to equipment.
When you remove or insert a module with power applied, an
electrical arc may occur. An electrical arc can cause personal
injury or property damage by:

Causing an explosion in a hazardous environment.
 Sending an erroneous signal to your system’s field
devices, causing unintended machine motion.
Electrical arcing causes excessive wear to contacts on both the
module and its mating connection, and may lead to premature
equipment failure.
Before removing or inserting this module, remove power.
2.3.4 Selecting a Location
Reducing Noise
Most applications require installation in an industrial enclosure to reduce the effects of
electrical interference. Analog outputs are highly susceptible to electrical noise.
Electrical noise coupled to the analog outputs will reduce the performance (accuracy) of
the module. Group your modules to minimize adverse effects from radiated electrical
noise and heat. Consider the following conditions when selecting a location for the