Model DT33x-0700
4-Wire DC I/V Dual Transmitter w/USB
Acromag, Inc. Tel: 248-295-0880
- 30 -
http://www.acromag.com
- 30 -
https://www.acromag.com
SPECIFICATIONS
Model Number
Model DT33X-0700
Signal Transmitter
Isolated DC I/V Input
Four-Wire Powered
CE Approved
Includes cULus Class I, Div 2,
ATEX/IECEx approvals
Custom calibration to your
specifications can be added as a
separate line item at time of
purchase.
The DT model prefix denotes a Dual Transmitter. The 3
rd
digit
“
3
”
denotes a 4-wire,
separately-powered member of the DIN-Mounted DT300 transmitter family. The
trailing 3x digits denote its input type with 36 denoting DC current/millivoltage, 37
denoting medium DC voltage, and 38 denoting high DC voltage
. The trailing “
-0700
”
model suffix denotes a 4-wire transmitter with CE and cULus Class I, Division 2,
ATEX/IECEx Zone 2 Approvals.
Factory calibration to your own specification may be ordered as a separate line item
at the time of purchase on a per unit basis. This will require the specification of each
input range, filter level, each output range, scaled range zeros and full-scale values.
You can also specify normal or reverse acting outputs.
A standard model without adding custom factory calibration is calibrated by default
for 4-20mA DC at TB1/TB3-1 (DT336), ±1V DC at TB1/TB3-1 (DT337), or ±15V DC at
TB1/TB3-1 (DT338), and both transmitter outputs mapped to 4 to 20mA outputs
normally acting, and with medium input filter selection. The center input terminal
TB1/TB3-2 is the common signal return for the voltage/current input signals.
Models can be mounted on standard 35mm
“T” Type DIN rail.
Recalibration of any
model will require use of the TTC-SIP configuration kit, ordered separately (see
Accessories section).
Input (Each)
Models have two channels with
two input paths each for current
and/or voltage that varies by
model.
Two signal paths at channel 1
(TB1) and channel 2 (TB3)
support different ranges. On
DT236, DC current is input at
TB1/TB3-1, and DC voltage at
TB1/TB3-3. On DT237, ±1V DC is
input at TB1/TB3-1, and ±10V at
TB1/TB3-3. On the DT238, ±15V
DC is input at TB1/TB3-1, and
±150V is input at TB1/TB3-3.
Signal return for the channel is
TB1/TB3-2.
This unit has three operating
modes: dual transmitter, single
transmitter, or CH1 signal
splitter.
Input Reference Test Conditions:
DT336 TB1/TB3 input A is 4 to 20mA or input B is
±0.5V, DT337 TB1/TB3 input A is ±1V or input B is ±5V, DT338 TB1/TB3 input A is
±15V or input B is ±150V; medium filter; 4-20mA output into a
250Ω load
; 25
C
Ambient; and 24V DC Supply.
Input Range:
Models have separate input channels at TB1 & TB3 which include two
signal paths A & B that support different ranges. The input is processed differentially
by the A/D converter and may be scaled separately from its output channel with a
smaller portion of the range driving the output (note that resolution will decrease
and error increase as nominal input ranges are rescaled smaller).
MODEL
Input Path A at TB1/TB3-1
Input Path B at TB1/TB3-3
DT336
±20mA, 0 to 20mA, 4-20mA,
0 to 11.17mA, & ±1mA DC into a
precision 24.9Ω current shunt
resistor to convert to Vin.
1
-0.5V to +0.5V, or 0 to 500mV,
direct to an ADC without a
resistive divider and having an
input impedance of 15M
min.
DT337
±1V or 0-1V to an ADC without a
resistive divider (input
impedance 15M
min).
±10V/0-10V & ±5V/0-5V DC to an
ADC after passing through a
86.6K/1084.6K resistive divider.
DT338
±15V or 0-15V DC
w/28K/527K divider.
±150V/±75V or 0-150V/0-75V DC
w/5.36K/1003.36K divider.
2
1
Note:
An optional external sensor is required to monitor AC current signals for
input to TB1/TB3-1 of a DT336 (see Acromag Model 5020-350). This toroidal sensor
generates 0 to 11.17mA DC to drive a DC current input to this module with AC input
current through its own primary (see Table 1 of next page for scaling the AC current
by number of primary turns).
2
Note:
Per cULus Shock & Fire Safety: +/- 150 VDC Maximum Battery Sources or +/-
60 VDC Maximum SELV MAINS Sources.
