Acromag, Inc. Tel: 248-295-0880
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Model SP33X-0700
4-Wire DC I/V Signal Splitter w/USB
SPECIFICATIONS
Model Number
Model SP33X-0700
Signal Transmitter
Isolated DC I/V Input
Four-Wire Powered
CE Approved
Includes UL/cUL Class 1, Division 2
approvals
Custom calibration to your
specifications can be added as a
separate line item at time of
purchase.
The SP336 model prefix denotes a combination DC current and DC voltage input type
of the DIN-Mounted Series SP33x Splitter family. The SP337 model prefix denotes a
nominal DC voltage input type, and the SP338 model prefix denotes a high-level DC
voltage input type. The trailing “
-
0700” model suffix denotes 4
-wire power with CE
and UL/cUL Class 1, Division 2 Approvals included.
Optional factory calibration to your own specification is ordered as a separate line
item at time of purchase, and on a per unit basis. Factory calibration will require the
specification of nominal input range, filter level, each output range, scaled input
range zero, and scaled input range full-scale. You can also specify a normal or
reverse acting output.
A standard model without adding custom factory calibration is calibrated by default
for 4-20mA DC at TB1 (SP336), ±1V DC at TB1 (SP337), or ±15V DC at TB1 (SP338),
and both splitter outputs mapped to 4 to 20mA outputs normally acting, and with
medium input filter selection.
Recalibration of any model will require use of the TT-SIP configuration kit, ordered
separately (see Accessories section).
Models
can be mounted on standard 35mm “T” Type DIN rail.
Input
These models have two separate
inputs for current and/or voltage
depending on the model, but
only one input may drive the
output at a time.
On SP336, DC current is input at
TB1, and DC voltage at TB2.
On SP337, ±1V DC is input at TB1,
and ±10V at TB2. On the SP338,
±15V DC is input at TB1, and
±150V is input at TB2.
Input Reference Test Conditions:
TB1: SP336 4 to 20mA current, SP337 ±1V, SP338
±15V, TB2: SP336 ±0.5V; SP337 ±5V; SP338 ±150V, or ±0.5V input at TB2; 4-20mA
output into a 250Ω load; 25
C Ambient; and 24V DC Supply.
Input Range per Terminal:
Each model has separate input channels at TB1 & TB2,
but only one input may drive the output at a time. The input may be scaled
differently for each output channel. Nominal ranges indicated below may be rescaled
to drive outputs using only a portion of the input range. The input signal is processed
differentially by the A/D converter. Note that resolution decreases and error
increases as nominal input ranges are rescaled smaller.
MODEL
Input 1 at TB1
Input 2 at TB2
SP336
±20mA, 0 to 20mA, 4-20mA,
0 to 11.17mA, & ±1mA DC. Uses
a precision 24.9Ω current shunt
resistor to convert to Vin.
1
-0.5V to +0.5V, or 0 to 500mV.
No resistive divider is present at
TB2 and its input impedance is
15M
minimum.
SP337
±1V, 0-1V, no divider
±10V, ±5V, 0-10V, and 0-5V DC.
Uses an 86.6K/1084.6K divider.
SP338
±15V, 0-15V DC. Uses a
56.2K/1054.2K divider.
±150V/±75V, 0-150V/0-75V DC.
Uses a 5.36K/1003.36K divider
1
Note:
An optional external sensor is required to monitor AC current signals for
input to TB1 of the SP336 (see Acromag Model 5020-350). This toroidal sensor
generates 0 to 11.17mA DC to drive the DC current input of this module with AC input
current through its primary (see Table 1 of next page for scaling the AC current by
number of primary turns).