Warner Instruments DP-304A Manual Download Page 3

DP-304A, Rev. 091615 

 

 

  

The 

DP-304A

 

is designed for amplifying signals such as EEG, EKG and extracellular action 

potentials. With gain selections of x10, x100, x1000 and x10,000, 

μ

V level signals are 

sufficiently amplified for computer signal analysis. The input impedance is typically 10

12

 

Ω

 and 

the input leakage is typically 1 pA. 

The unit features high pass and low pass filters, plus a DC operation mode. An input-offset 

control nulls potentials present at the input, which can be seen at the output in DC mode. 
Each channel features a test mode that applies 1 mV pulses to the input to check operation of 
the entire system. 

The

 DP-304A

 is powered by AC line power and contains no batteries.  The line voltage 

selector switch on rear panel is used to set the proper line voltage, 110 or 220 VAC at 50 or 60 
Hz.  

 

Principal features of the 

DP-304A

 include: 

9

 

Low noise 

9

 

Gains to x10,000 

9

 

Bandwidth to 50KHz 

9

 

Excellent common mode rejection 

9

 

Internal 2-pole low-pass Bessel filter 

9

 

Internal 2-pole high-pass filter 

9

 

Compact design 

 

 

 

 

 

THIS EQUIPMENT IS NOT DESIGNED NOR INTENDED  

FOR USE ON HUMAN SUBJECTS 

 

Summary of Contents for DP-304A

Page 1: ...tr ru um me en nt ts s 4 4 C Ch ha an nn ne el l D Di if ff fe er re en nt ti ia al l A Am mp pl li if fi ie er r M Mo od de el l D DP P 3 30 04 4A A Warner Instruments 1125 Dixwell Avenue Hamden CT...

Page 2: ...ESCRIPTION 5 Front panel 5 Offset Control 5 High pass filter 5 Low pass Bessel filter 5 Gain Control 5 Power 6 Rear Panel 6 SETUP AND TEST 7 Setup 7 Test 7 OPERATION 7 AC mode 7 DC mode 8 Input Connec...

Page 3: ...at the input which can be seen at the output in DC mode Each channel features a test mode that applies 1 mV pulses to the input to check operation of the entire system The DP 304A is powered by AC li...

Page 4: ...e have employed the following text conventions Product numbers are presented using bold type References to a specific control are specified using SMALL CAPS References to individual control settings a...

Page 5: ...S indicate clipping of the amplifier output Two LEDs are provided to indicate clipping high or clipping low Clipping offsets can be adjusted using the OFFSET CONTROL The OUTPUT BNC is also located in...

Page 6: ...is 10 volts except when using a gain of 10 when it drops to 5 volts Power The power section contains an ON Off switch and LED which indicates when power is applied to the unit Rear Panel The rear pan...

Page 7: ...ggle switch to the center position this grounds the input Connect the BNC shorting connector provided with the DP 304A to the input 3 Adjust the OFFSET CONTROL for a zero volt baseline on the oscillos...

Page 8: ...glass E45P F20NH 64 1026 Input Connections The BNC s on the front panel represent the positive and negative inputs of a differential amplifier and the outer shell of these BNC s are connected to the s...

Page 9: ...Altitude sea level to 2000 m Relative humidity 0 95 Warranty The DP 304A is covered by our Warranty to be free from defects in materials and workmanship for a period of one year from the date of shipm...

Page 10: ...DP 304A Rev 091615 Warner Instruments A Harvard Apparatus Company 10 Certifications...

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