Model DT33x-0700
4-Wire DC I/V Dual Transmitter w/USB
Acromag, Inc. Tel: 248-295-0880
- 20 -
http://www.acromag.com
- 20 -
https://www.acromag.com
Configuration
…
The Dual Transmitter Configuration screen is the first screen at
left. When you clicked
the “
Configuration
” tab, the software
retrieved
the unit’s current configuration.
IMPORTANT:
DT models have three modes of operation:
1
Dual
Transmitter,
2
Single Transmitter, and
3
Signal Splitter. The
Configuration Screen varies with the Operating Mode selected.
The second screen at left is for Single Transmitter mode, the third
screen at left is for Signal Splitter mode.
The initial Configuration screen returned represents the
connected module’s
current configuration and operating mode
before making changes. Otherwise, you could have loaded the
configuration from a saved file, or you may have changed a field.
You can always click
[Get I/O Config]
to retrieve the connected
module’s current configuration
at any time.
Note that if you make any changes to the configuration indicated,
the only way to preserve the changes is to write them to the
device by clicking
[Send I/O Config]
, or to save them to a file by
clicking
“
F
ile”
in the upper left-hand corner of the screen.
NOTE:
Note that each channel of these dual transmitter models
has two input paths different by the range supported. For the
DT336, the first input path is at TB1-1/TB3-1 (leftmost terminal of
TB1/TB3) and intended for DC current only. The second input
path is at TB1-3/TB3-3 (the rightmost terminal of TB1/TB3) and
intended for DC voltage only. For both the DT337 & DT338
models, each input path supports a different range of DC voltage
input for the channel. Your input range selection will determine
which terminal you must wire your input to. Note that the center
terminal is always the channel signal return for both input paths.
Select the Operating Mode...
The three screens at left show three DT Operating Modes:
1
Dual
Transmitter,
2
Single Transmitter, and
3
CH1 Signal Splitter. The
Configuration Screen varies slightly with the Operating Mode
selected. To configure the unit as a single CH2 transmitter
(instead of CH1), select Dual transmitter mode and ignore CH1.
Select the Input Type/Range
…
Input Type refers to the nominal input range. Different Input
ranges may use different signal paths (see NOTE above). The first
terminal of a DT336 channel supports DC current (TB1/TB3-1) of
±20mA, 0-20mA, 4-20mA, 0-11.17mA, and ±1mA. Its third
terminal (TB1/TB3-3) supports DC voltage ranges of ±0.5V, 0-
500mV. The first and third terminal of the DT337 & DT338
models support different DC voltage ranges (TB1/TB3-1 and TB1-
3/TB3-3). Signal return is wired to the middle terminal between
them (TB1/TB3-2).
