Model DT335-0700
Dual RTD/Resistance Input Transmitter w/USB
Acromag, Inc. Tel: 248-295-0880
- 6 -
http://www.acromag.com
- 6 -
https://www.acromag.com
ELECTRICAL CONNECTIONS
WARNING
–
EXPLOSION HAZARD
–
Do not disconnect equipment unless power has
been removed or the area is known to be non-hazardous.
WARNING
–
EXPLOSION HAZARD
–
Substitution of any components may impair
suitability for Class I, Division 2.
WARNING
–
EXPLOSION HAZARD
–
The area must be known to be non-hazardous
before servicing/replacing the unit and before installing.
Wire terminals can accommodate 14
–
28 AWG (2.08
–
0.081mm
2
) solid or stranded
wire with a minimum temperature rating of 90
o
C. Channel input wiring may be
shielded or unshielded type (14-30 AWG). Ideally, output wires should be twisted
pair, or shielded twisted pair. Use insulated wire to keep channels isolated.
Terminals are pluggable and can be removed from their sockets by prying outward
from the top with a flat-head screwdriver blade. The DT335 models allows RTD
sensors to be wired to TB1 or TB3. Strip back wire insulation 0.25-inch on each lead
and insert the wire ends into the cage clamp connector of the terminal block. Use a
screwdriver to tighten the screw by turning it in a clockwise direction to secure the
wire (0.5-0.6Nm torque). Use adequate wire insulation and follow proper wiring
practices, as common mode voltages can exist on signal wiring. As a rule, output
wires are normally separated from each other and from input wiring for safety and
low noise pickup.
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