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Summary of Contents for ENDEVCO 126-3
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Page 2: Table Of Contents
Contents Safety ..............3 Description . -
Page 3: Safety
Safety Read this manual in its entirety before operating the model 126 signal conditioner. Read all wiring and power hookup instructions and understand the requirements prior to using another manufacturer’s products with the model 126. Insure that any product being interfaced with the model 126 is wired according to prevailing local safety and operational standards before operating. -
Page 4: Description
The model 126 has been CE tested for compliance to EN61326 for EMC emissions and immunity and EN61010-1:2001 for product safety. Consult Endevco Application Engineers for associated optional filter modules and cable assemblies to mate with the model 126. -
Page 5: Wiring Information
Wiring information CH1, CH2 and CH3 (9-Pin standard D-subminiature) transducer connector 1 - Sense(+) 2 - NC 3 - NC 4 - Vin(-) 5 - Vin(+) Note: Vin(+) and Vin(-) are fully differential inputs 6 - Sense(-) 7 - Vexc(+) 8 - Vexc(-) Note: Vexc(-) is connected to analog ground 9 - NC Recommended hookup for bridge type sensors... - Page 6 Wiring information Hookup without any Excitation Supply or Ground Reference Note: Sig(-) must be tied to Vexc(-). CH1, CH2 and CH3 output BNC connector (50 ohm) Typical hookup to oscilloscope Note: The model 126 signal ground is isolated from power ground. This allows connecting the oscilloscope power ground to the 126 signal ground.
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Page 8: Rear Panel
Rear panel... -
Page 9: Setting Up The Model 126
Setting up the model 126 To setup CH1, CH2 or CH3, perform the following steps in the sequence shown. Step 1: Set Vexc 1. Set the GAIN/Vexc thumbwheel switch (SW1) to desired Vexc Note: If the thumbwheel switch is set to a value >12.00, Vexc will be 12.10 Vdc. For 0.00 <... - Page 10 Setting up the model 126 4. The amplifier, under microprocessor control, will first zero the output of the input amplifier, then zero the output of the output amplifier. The output will be 0.00 ±0.050 Vdc (typ). Step 4: Trimming the zero output Note: Trimming allows the user to zero the output of the selected channel to within ±1 mVDC.
- Page 11 Setting up the model 126 Unzeroing the desired channel. Note: Unzeroing the desired channel sets both autozero DAC’s to zero. This basically sets the amplifier to its natural zero position. The output of the amplifier is offset by its own offset voltage. Step 1: Unzero the amplifier 1.
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Page 12: Location Of Filter Modules And Rsh Resistors
Location of filter modules and Rsh resistors... -
Page 13: Outline Dimensions
Outline dimension...
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