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Model 201AP Charge Amplifier by cgg10267

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									                                                                           Model 201AP
                 Trig-Tek, Inc.                                         Charge Amplifier




                                                           F E A T U R E S

                                                        • Rugged
                                                        • 1 Hz - 50 kHz BW.
                                                        • 100:1 mV/pC Gain ADJ
                                                        • mV or pC Input.
                                                        • Low Pass Filter
                                                        • Easy mounting
                                                        • Low cost



                                                            G E N E R A L

                                             The Trig-Tek Model 201AP Charge Amplifier
                                             accepts inputs from piezoelectric or mV (built-in
-electronic) sensors, such as piezoelectric accelerometers, microphones, force gages, pressure
                                               in
pickups, etc.    The charge input is converted to a proportional voltage.        The gain is
continuously adjustable over a 100 to 1 range. This gain range accommodates the pickups
with a wide range of sensitivities to provide a calibrated AC output.


The unit includes a four section low pass filter. Customers specified cutoffs can be set
between 500 Hz to 50 kHz when ordered.




                                         PAGE 1
                Model 201AP Charge Amplifier
                                  Section I
                        Description & Specifications



                                        Description

The Trig-Tek Model 201AP Charge Amplifier is designed to amplify the outputs from
piezoelectric or mV type accelerometers, force gauges, microphones, and pressure pickups.
The CHARGE output from the pickup, expressed in millivolts or picocoulombs per g, is
then amplified and AC signal proportional to the input is brought out via a BNC connector.
The AC voltage output can be used to operate vibration monitors, recorders, analyzers, etc.


The unit includes a four-section low pass filter. The cutoff frequency can be selected by a
changing resistor values on a plug-in assembly. Nominal 3dB cutoff is 20 kHz. Cutoff
frequencies up to 50 kHz and down to 500 Hz can be accomplished by changing the resistor
values on the plug.



                                      Specifications


INPUT

PC or mV                                    Changed by a movable jumper on the PC
                                            Board. The Model 201AP is set to pC mode
                                            at the factory).

Frequency     3dB                           1 Hz to 100 kHz (no filter).

Sensitivity                                 0.1 1.0, 1.0 11 mV/pC continuously in
                                            conjunction with the GAIN switch.

Pyro Electric                               Amplifier will not block.




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Specs   Model 201AP



 Input Shunt Resistance   Will operate with shunt resistance down to 1
                          MegOhm.

 mV Mode                  3   5 mA current (optional).

 Connector                10-32 microdot.



 AC OUTPUT

 Impedance                Less than 50 Ohms (10 ma).

 Voltage                  5 Volts RMS full scale.

 Frequency Response       ± 5% 5 Hz to 50 kHz (no filter).

 Amplitude Linearity      0.5% of full scale.

 Harmonic Distortion      Less than 1%.

 Connector                BNC.




 POWER                    ±12 to ±18 Volts DC at approx 15 mA.



 DIMENSIONS               5.25 long x 2.5 wide x 1.66 deep.
                          (13.3 cm x 6.3 cm x 4.2 cm).




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