212/212X Installation & Technical
8200-M639-O1 Rev D 09/14
2. GETTING STARTED
2.1 Installation
Site Preparation Requirements
The Cardinal Model 212/212X indicator is a precision weight-measuring
instrument. As with any precision instrument, it requires an acceptable
environment to operate at peak performance and reliability. This section
is provided to assist you in obtaining such an environment.
Environmental
The 212/212X indicator meets or exceeds all operating requirements
within a temperature range of -4 to 158 ºF (-20 to +70 ºC).
Electrical Power
The 212/212X indicator has been designed to operate from 12VDC
(10.5-14.4VDC) using an external battery or an optional 12VDC @ 1A,
AC Power Adapter (Cardinal part number AGPS)
Transient Suppression
The following recommendations will help to reduce transients:
Always use shielded cables to connect signal wires to the weight
indicator.
Keep wires that extend beyond the shield as short as possible.
Do not run load cell or signal cables from the weight indicator
along side or parallel to wiring carrying AC power. If unavoidable,
position the load cell and signal cables a minimum of 24" away
from all AC wiring.
Use zero voltage switching relays, optically isolated if possible.
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