MODEL 632 STRAIN GAGE AMPLIFIER ASSEMBLY
Features
- 16 channels per rack
- Auto-balance
- Selectable bridge completion
- Adjustable bridge excitation
Description
Sixteen channels of the Model 632 strain gage amplifiers are mounted
in a 19" wide x 7" high x 20" deep rack adaptor. An unregulated DC supply
is internally mounted at the rear of the rack to energize all 16 channels.
Each channel has its own on-board regulators to provide the voltage
required for the logic circuits, op-amps, and bridge excitation. In
this manner, a load fault to any module will not affect the remaining
units.
The Model 632 provides all of the operating features normally provided
in this type of instrument. In addition it offers as a standard feature
a switch selectable auto-balance circuit.
Specifications
Bridge configuration: Quarter, half, and full bridges, switch
selectable; can also be used as general purpose differential amplifier
Bridge completion: Switch selects either 120 ohm or 350 ohm
internal precision completion resistors
Bridge excitation: Front panel adjustable, 0 to 15 VDC; front
panel on/off switch; BNC provided for voltmeter monitoring
| Bridge balance: |
Auto
|
Remote control activation of bridge balance cycle for all modules
in rack; LED indicates unbalanceable condition |
|
Manual |
Front panel trimpot allows manual balance adjustment |
Gain:Front panel switch selectable gains of 1, 2, 5, 10,
20, 50, 100, 200, 500, 1000, 2000, 5000 with gain vernier
Frequency response: DC to 100kHz
Calibration: Shunt cal activated by remote command; internal
calibration resistors provided for 120 ohm and 350 ohm bridges
Signal output: ±10V max, 100mA peak load
Output noise: 5 microvolts RMS RTI max, DC to 100kHz at G=1000
Power: Integral rack power supply module provides unregulated
±24V
Mechanical: 19"W x 7"H x 20"D, 16 module rack adapter, Model
4007-134
Carrying case: 2 module desktop case, Model
4010-109
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