Benchmaster 8 - Versatile 2 Channel Filter Amplifier

The BenchMaster 8 dual channel filter with gain, is considered by many to be the `standard classic' benchtop laboratory analogue filter. Now in its 6t" generation, it has been in continuous production since 1975, with 1000's in use worldwide.

• 2 Independent Channels
• Differential/Single ended input
• Switchable High/Low pass
• `Pulse' and `Flat' Modes
• 0.01 Hz - 99.9 kHz filter range
• Range of filter types
• Input gain to x 500 (+54 dB)
• IEPE 4 mA transducer supply
• 6 models, 6 filter responses
• 4 stage signal level indication
• 3 digit frequency setting
• Optional DC powered versions
• Highpass / Lowpass / Bandpass / Bandstop / Notch

The BenchMaster 8 is available in a range of different filter types: Butterworth, Bessel (4 and 8 pole), general purpose linear phase, and anti-aliasing responses. The two independent channels can each be switched between highpass and lowpass, or combined in series or parallel to give; two channels of lowpass, two channels of highpass, one lowpass/one highpass, series connection to give bandpass, and parallel connection for bandstop/notch filtering.

The BenchMaster 8 has easy to use clear front panel controls, with BNC input and output. The inputs can be AC or DC coupled, single ended or differential. Up to +54dB(x500) of gain can be applied, in 9 steps, to the input before filtering, with 4 stage signal level indication. An IEPE 4 mA current source is available for transducer power, with indication of correct connection.

The basic filter response has 3 'modifier' settings: a minimum overshoot `pulse' mode for impulsive signals; `flat' which provides a flattened response to cut-off; and a`Butterworth' type response with -3 dB at cut off frequency. Using the 'flat' modifier true 16 pole Bessel and Butterworth filters can be set, maintaining -3dB at cutoff .

Optional 10 - 30 Volt DC power input allows use for portable and vehicle applications. The compact 1 U metal case is designed for both bench top use and rack mounting.
All together, no other laboratory filter offers so many features for the price or size.


For more information, please contact :-

Kemo Limited
Unit 1, Dene Yard, Green Street, Green Road, Dartford Kent DA2 8DH. UK
Tel + 44 (0)1474 705168
Fax + 44 (0)1474 705366

Kemo Inc.
5 Northbrook Way, Greenville, SC 29615
Tel (864) 297 2522
Fax (864) 675 1530

October 2012

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