Industrologic, Inc. reserves the right to change any product's features, specifications, documentation, warranties, fee schedules, and conditions at any time and without notice.
Industrologic products are provided as printed circuit board level assemblies. Some Industrologic products may include mechanical packaging assessories which are provide for the purchaser's convenience, and are not intended to be final assembly enclosures.
Industrologic products are provided with the understanding that the purchaser will determine fitness for any particular application as well as achieve compliance with any particular specifications or regulations as required or desired for that application.
Industrologic's obligation under this Warranty is limited to replacement with a new or repaired unit to the original purchaser. The unit must be returned, and replacements obtained from Industrologic, Inc. or the Distributor or OEM from whom it was purchased.
This warranty will not apply if, in the judgment of Industrologic, Inc., damage or failure of the product has resulted from accident, alteration, misuse, abuse, connection to or operation with incompatible signals or power sources, or improper installation.
Under no circumstances shall Industrologic, Inc. be liable to purchaser or any third party for any loss of profits or other direct or indirect costs, expenses, losses, or consequential damages arising out of or as a result of any defects in or failure of Industrologic products or any part or parts thereof.
THIS WARRANTY IS IN LIEU OF ANY OTHER WARRANTY, EITHER EXPRESSED OR IMPLIED, AS TO DESCRIPTION, QUALITY, MERCHANTABILITY, FITNESS FOR ANY PARTICULAR PURPOSE OR USE, OR ANY OTHER MATTER.
Products must be returned by original purchaser with a Return Materials Authorization (RMA) number issued by Industrologic, Inc. or the Distributor or OEM from whom it was purchased, authorizing its return. Current repair or replacement fees and procedures will be related during the issue of the RMA number.
Warranty or repair units must be returned with postage and insurance paid by purchaser. Industrologic, Inc. is not responsible for damages or loss during shipment.
Power Supply Requirements:
Operating voltage: 8 to 30 volts DC regulated or filtered unregulated
(Positive and negative voltages required for bipolar operation)
Operating current: 5mA, plus bridge current
Bridge Input:
Excitation voltage: 5 volts
Bridge type: Full Wheatstone Bridge
The resistance of strain gauges is commonly in the range of 120 to 350
ohms for each element. Resistances that vary greatly from this range or that
are not closely matched may make it difficult or impossible to adjust the
amplifier offset.
Voltage Output:
By design, the amplifier chip output voltage swing is limited to the power
supply voltage minus one volt. To allow the voltage swing to span the
entire range of 0-5 volts when used with data acquisition devices with
this range the amplifier chip is powered by the unregulated power supply
rather than the on-board +5 volt regulator. (At the same time, this design
allows the output voltage to be greater than the range desired at some
circuit gains and bridge signal levels.)
The output voltage level of the amplifier can be greater than the range desired at some power supply voltages, circuit gains, and bridge signal levels. The data acquisition device monitoring the amplifier output signal must include protection against overvoltage if the amplifier might be operated in this region.
The SGAMP-2 circuit assembly is normally shipped with a filter capacitor (CF) of .0015uf, for a low pass filter frequency of 1061 HZ. The following chart lists some common capacitor values that can be used for CF, along with their associated frequencies. Refer to the Analog Devices AMP04 data sheet for detailed information about circuit filtering.
Capacitor CF Frequency (HZ) pF uF 100000 .1 16 47000 .047 33 33000 .033 48 22000 .022 72 15000 .015 106 10000 .01 159 6800 .0068 234 5600 .0056 284 4700 .0047 338 3300 .0033 482 2700 .0027 589 2200 .0022 723 1800 .0018 884 1500 .0015 1061 1000 .001F 1591 820 1940 680 2340 560 2842 470 3386 330 4822 220 7234 180 8841 150 10,610 120 13,262 100 15,915 47 33,862 39 40,808 33 48,228 22 72,342 15 106,103
end of manual