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28
FEATURES
• Accepts all strain gage inputs (foil and piezoresistive),
potentiometers, DCDT’s, etc
• Selectable bridge excitation, 0.7 to 15 VDC (11 steps),
plus 0.2 to 7 VDC continuously variable
• Fully adjustable calibrated gain from 1 to 11,000
• Dual-range (±5000 με and ±25,000 με) automatic bridge
balance, with “keep-alive” power to preserve balance
for months without external power
• All bridge completion built in, including 120- or 1000-
and 350-ohm dummies
• Dual polarity two-step double shunt calibration
• Bandpass:
• 76 kHz (–0.5 dB)
• 155 kHz (–3 dB)
• Switchable active filter—a 6-pole Butterworth is
standard
• Two simultaneous buffered outputs
• Playback mode to filter and observe or re-record
previously recorded low-level data
• Input impedance above 100 megohms
DESCRIPTION
The 2300 System conditions and amplifies low-level
signals to high-level outputs for multiple-channel,
simultaneous dynamic recording and display on external
devices.
Among its features, each 2310B Module includes a
built-in power supply, active filtering, two simultaneous
outputs, playback mode, wide frequency response, and
voltage injection bridge balance.
Up to ten 2310B Modules can be mounted in a Model
2350 Rack Adapter; or up to four modules in a Model
2360B Portable Enclosure; or, a single 2310B can serve
as a standalone unit using the 2310-A20 Line Cord and
Stabilizer.
The 2310B Modules may be interchanged between the
2350 Rack Adapter and the 2360B Portable Enclosure to
best satisfy testing requirements.
MODEL 2310B SIGNAL CONDITIONING
AMPLIFIER
The 2310B Conditioner/Amplifier Modules accept inputs
from strain gages, load/pressure/DC displacement trans-
ducers, potentiometers, RTD’s and nickel temperature
sensors, without any internal modification.
Controls on the 2310B are arranged in sections,
permitting easy setup. Clearly marked push-button
and single-purpose switches minimize the possibility
of operator error during use. With the exception of the
playback switch, all operational and monitor controls are
on the front panel. Switches for selecting remote sense
and specific shunt calibration configurations are located
on the printed circuit board inside the unit.
• Calibration: Momentary two-position
switches, ±A and ±B, control shunt
calibration levels; 4 point
• LED Display: Set up indicator for
amplifier balance, bridge balance
and for monitoring the output polarity
• Filter Section: Push-button controls
for activating appropriate low- and
high-pass active filters
• Electronic Bridge Balance Section:
Three-position switch—OFF, ON,
RESET—for electronic bridge
balance; auto ranging up to
±25 000 με with nonvolatile zero
storage; yellow light indicates
high-range operation or over range
condition
• Vernier trim control is used to refine
bridge balance when desired
• AC IN: Capacitive coupling in
the amplifier; eliminates static
component of the signal
• Bridge Excitation: ON-OFF switch for
removing bridge excitation from the
strain gage or transducer for noise
documentation
• Amplifier Balance: Adjusts amplifier
offset
• Excitation Level: Twelve-position
switch; values arranged for doubling
power with each step, with one
0.2 to 7 VDC continuously variable
• Amplifier Gain Section: Continuously
variable potentiometer (1.00 to
11.00) plus push-button course gain multipliers control
amplifier gain; direct-reading
• Battery Test: Momentary push button determines
battery level for bridge zero storage
• Main Power: Turns unit on/off; LED pilot light
• Pin Jacks: Monitoring of Excitation, Unamplified Input,
Amplified Output
2300 System
Signal Conditioning Amplifier
Document No.: 11255
Revision: 16-May-2011
FRONT PANEL
(143 pagine)
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