Operating Manual Model 101 3-Channel DC Signal Conditioner Amplifier Measurement Specialties, Inc. Vibration Sensors Design Center 32 Journey, Suite 150 Aliso Viejo, CA 92656 USA Tel: 949-716-5377 www.meas-spec.com vibration@meas-spec.
Table of Contents Warranty ...........................................................................................................................3 Safety .............................................................................................................................. 4 Description ...................................................................................................................... 5 Specifications ............................................................................
Warranty Measurement Specialties, Inc. instruments are warranted during a period of one year from date of shipment to original purchaser to be free from defects in material and workmanship. The liability of Seller under this warranty is limited to replacing or repairing any instrument or component thereof which is returned by Buyer, at Buyer’s expense, during such period and which has not been subjected to misuse, neglect, improper installation, repair, alteration, or accident.
Safety Read this manual in its entirety before operating the Model 101 Signal Conditioner. Read all wiring and power hookup instructions and understand the requirements prior to using another manufacturer's products with the Model 101. Insure that any product being interfaced with the Model 101 is wired according to prevailing local safety and operational standards before operating. The following symbols and terms may be found on the Model 101 and its manuals and indicate important information.
Description The Model 101 is a new, microprocessor-controlled, 3-Channel DC Signal Conditioner Amplifier designed to be used with bridge type or differential output accelerometers and pressure transducers. The Model 101 incorporates variable gain adjustment, shunt calibration capability, and multiple excitation level settings. For various applications where specific frequency roll-off is required, the Model 101 offers a variety of optional filter modules.
Specifications Input Specifications Input Range Input Impedance Common Mode Input Range Common Mode Rejection Autozero Adjustment Range Autozero Accuracy Output Specifications AC/DC Voltage Output Impedance Linear Output Current Output Output DC Bias Temp Stability Output DC Bias Time Stability Excitation Voltage Excitation Voltage Accuracy Excitation Current Noise & Ripple Transfer Characteristics Gain Range Resolution Accuracy Linearity Noise Frequency Response Filter Crosstalk Between Channels Power Req
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.
Wiring Information CH1, CH2 and CH3 Output BNC Connector (50 ohm) Typical Hookup to Oscilloscope Note: The Model 101 Signal Ground is isolated from power ground. This allows connecting the oscilloscope Power Ground to the 101 Signal Ground. To minimize high frequency EMI susceptibility, install clamp-on ferrites with frequency bands of 80MHz to 800MHz.
Front Panel SW1 (Gain / Excitation) SW2 (Shunt Cal Switch) SW3 (Channel Select Switch) LED1 (Channel Select LED) SW4 (Zero / Unzero Switch) SW5 (Set Gain Switch) SW6 (Set Vexc Switch) LED2 (Power On LED) Operating Manual Model 101, Revision 1 Sets Gain from 0.00 to 999.9 or Vexc from 0.00 to 12.
Rear Panel Operating Manual Model 101, Revision 1 Page 10 of 14
Setting Up the Model 101 To setup CH1, CH2 or CH3, perform the following steps in the sequence shown. Step 1: Set Vexc 1. Set the GAIN/EXCITATION 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 < or = Thumbwheel Switch Setting < or = 12.00, Vexc will be equal to the Thumbwheel Switch Setting, when selected. 2. Depress the Channel Select Switch for CH1, CH2 or CH3.
Step 4: Trimming the Zero output Note: Trimming allows the user to zero the output of the selected channel to within ±1mVDC. This trimmed value may then be stored in non-volatile memory and reapplied upon power turn on. 1. Perform Step 3: Zero the Amplifier. 2. Depress and hold depressed, the Channel Select Switch for CH1, CH2 or CH3. The appropriate Channel Select LED will illuminate and stay illuminated. 3.
Setting Up the Model 101 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. Depress the Channel Select Switch for CH1, CH2 or CH3. The appropriate Channel Select LED will illuminate and stay illuminated. 2.
Location of Filter Modules and Rsh Resistors Operating Manual Model 101, Revision 1 Page 14 of 14
