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DI-725 Data Acquisition
Analog Expansion Unit
32-Channel General Purpose Expansion Unit |
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FEATURES:
• 32-Channel expansion device
for DI-720, DI-722, and DI-730 instruments
• Programmable gain per channel
• Powered by host instrument
• Base models feature a full scale
measurement range of ±10V at
unity gain. Extended measurement range
models offer a ±20V full scale
measurement range. Custom measurement
ranges also available
• Extremely small size (9 ×
7.3 × 1.5 in.)
• Can be stacked and secured with
optional stacking brackets |
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Product Highlights
The DI-725 is a 32-channel analog expansion unit for DI-720,
DI-722, and DI-730 instruments. It is available in two
models; base measurement range and extended measurement
range. The base model features 32 differential analog
inputs, a programmable gain amplifier with gain selections
of 1, 2, 4, and 8; and a ±10 volt full scale measurement
range (at a gain of 1). The extended measurement range
model also features 32 differential analog inputs and
a programmable gain amplifier with gain selections of
1, 2, 4, and 8, but it has a ±20 volt full scale
measurement range (at a gain of 1).
The DI-725 derives its power from the host DI-720, DI-722,
or DI-730 instrument, therefore no additional power supply
is required. In return for the 32 expansion channels it
provides, each DI-725 consumes two channels from its host
instrument. For example, when connected to a DI-720, the
combination delivers 62 total channels (30 are still available
on the host DI-720). When connected to a DI-730, the DI-725
adds 32 high level differential inputs to the host's 8
wide measurement range inputs for a diverse blend of 40
total channels. A total of 240 channels may be configured
using multiple DI-725's.
The DI-725 comes in the same sleek package as the DI-720,
DI-722, and DI-730, which measures only 9 × 7.29
× 1.52 inches. Access to the analog inputs is provided
through dual 37-pin, D-type connectors. Supported accessories
include the DI-205 I/O signal interface, the DI-705 I/O
signal interface, the DI-706 I/O signal interface, and
the CABL-4 BNC input signal interface cable.
The DI-725 is designed for cost-effective channel expansion
for DI-720, DI-722, and DI-730 instruments. Based on US
list price, the DI-725 lowers the per channel cost of
the DI-720 from $37 to $30; and the DI-730 from $374 to
$92. The differential inputs of the DI-725 allow it to
connect to a wide range of voltage and process current
signals. The base measurement range model offers the following
programmable ranges per channel: ±1.25, ±2.5,
±5, and ±10 volts full scale. The extended
measurement range model (DI-725E) offers the following
programmable ranges per channel: ±2.5, ±5,
±10, and ±20 volts full scale. It may be
used in place of the base model whenever a more electrically
rugged solution with an expanded measurement range is
required.
Stackable with Optional Hardware
Optional stacking brackets (part #100671) allow the DI-725
to be stacked and mounted to the host DI-720, DI-722,
or DI-730 instrument. The stacking brackets come complete
with mounting hardware to make installation a snap. An
optional stainless steel carrying handle (part #100690)
is also available for convenient system handling.
"Power" and "Low Power" LED's
These LED's indicate when power from the host instrument
is applied, and when this power is inadequate for use
by the DI-725.
Differential Inputs
Allows you to connect to a wider range of signals.
Programmable Gain
Allows selectable measurement ranges of ±1.25,
±2.5, ±5, and ±10 volts full scale
(base model) or ±2.5, ±5, ±10, and
±20 volts full scale (extended range model) per
channel.
Custom Range Configurations
Since the DI-725E's extended measurement range channels
use an amplifier per channel, many custom ranges can be
configured for minimal additional cost. Contact us with
your special requirements and let us quote a system that
perfectly suited for your application.
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Models
& Prices
| Part
Number |
Description |
Price |
Buy
Online |
| DI-725-7 |
32-channel base model analog signal
expander for DI-720, DI-722, and DI-730
Series instruments. Includes interconnecting
cable. |
£695 |
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| DI-725E-7 |
32-channel extended measurement range
analog signal expander for DI-720, DI-722,
and DI-730 Series instruments. Includes
interconnecting cable. |
£1295 |
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