Model DT23x-0600
Dual Two-Wire DC I/V Input Transmitters
Acromag, Inc. Tel: 248-295-0880
- 7 -
http://www.acromag.com
- 7 -
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. Input wiring may be shielded or
unshielded type. Ideally, output wires should be twisted pair, or shielded twisted
pair. Terminals are pluggable and can be removed from their sockets by prying
outward from the top with a flat-head screwdriver blade. Channels support two
input paths A & B at TB1 (channel 1) and TB3 (channel 2), each for a different
nominal range. 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 (0.5-0.6
Nm torque). Since common mode voltages can exist on signal wiring, always use
adequate wire insulation. And as a rule, while output wires are normally separated
from input wiring for safety, this is equally important for low noise pickup.
Important
–
End Stops:
For hazardous location installations (Class I, Division 2 or
ATEX/IECEx Zone 2), it should utilize two end stops (see Acromag 1027-222) to help
secure modules to the DIN rail (not shown).
Input Connections
Note:
This transmitter may operate
as a single channel 1 transmitter, a
dual transmitter, or a channel 1
signal splitter. You must apply loop
power to output 1 to operate this
transmitter in any mode.
Sensor wires are wired directly to transmitter input terminals TB1 and TB3 at the
bottom of the module (the spring-loaded DIN clip side), as shown in the connection
drawing on next page. Observe proper polarity when making input connections.
•
Separate transmitter inputs at TB1 and TB3 are isolated from each other
and from outputs at TB4 and TB6
. As a single transmitter, input is to
TB1/channel 1 and output/power are wired to TB4/output 1. As a signal
splitter, input is to TB1/channel 1 and transmitted to both outputs at TB4
and TB6.
•
Inputs are polarized ±, observe proper polarity.
The left and right outer
terminals of terminal blocks TB1 and TB3 are positive input paths for
different ranges
labeled “+”. The
middle terminal is the common return
path for both signal paths. See connection figure below per input model.
•
DT236 wires ±20mA DC Current to the leftmost terminal of TB1/TB3 and
±0.5VDC to the rightmost terminal of TB1/TB3. The return for these signal
paths is the middle terminal of TB1/TB3.
•
DT337 wires ±1V DC maximum to the leftmost terminal of TB1/TB3 and
±10V DC maximum to the rightmost terminal of TB1/TB3. The return for
these signal paths is the middle terminal of TB1/TB3.
•
DT338 wires ±15V DC maximum to leftmost terminal of TB1/TB3 and
±150V DC Battery Sources maximum to the rightmost terminal of TB1/TB3.
The
return for these signal paths is the middle terminal of TB1/TB3.
!