AMP-12  (for use with HFM-8 series - 5 gain settings)
 

 Advantages:

- Isolated from power lines to eliminate ground loops
- Captures the full range and bandwidth of heat flux signals
- Powered by long life 9-Volt Nickel-Cadmium cells
- 12 hours of operation on one battery charge
- Input cables and battery chargers included

Specification:
 

	Heat Flux Channels	Temperature Channel
Gain Settings	1, 100, 500, 1000, 5000	1, 100, 500, 1000, 5000
Gain Accuracy (%)
Gain = 1	± 0.6	± 0.6
Gain = 100	± 1.5	± 1.5
Gain = 200, 500	± 1.5	± 1.5
Gain = 1000	± 2.1	± 2.1
Gain = 5000	± 3.6	± 3.6
Bandwidth
Gain = 1	1 MHz	1 MHz
Gain = 100	150 kHz	150 kHz
Gain = 200
Gain = 500	50 kHz	50 kHz
Gain = 1000	25 kHz	25 kHz
Gain = 5000	5 kHz	5 kHz
Input Impedance	109 Ohms	109 Ohms
Input Noise	0.2 µV	0.2 µV
Full Scale Output	6 Volts	6 Volts

Principle of Operation:
The AMP-6 Signal Conditioning Amplifier is designed for use with the HFM-8 series.  Heat Flux signals of the transducer are amplified by a low noise, wide-band differential amplifier whose gain may be set at one of five discrete values between 1 and 5000.

Construction:
All signal connections are at the rear panel of the amplifier.  A four-pin female Lemo connector is provided for leads from the Heat Flux Microsensor.  Male connectors are provided for amplified heat flux and temperature output signals.  Batteries are recharged using a NiCd charger that uses 120V AC power. The amplifier has a power switch on the front panel.  Gains for heat flux and temperature signals are selected by multiple position switches.  Ten-turn potentiometers are provided for screwdriver adjustment of the heat flux amplifier offset and setting of the temperature reference point.  A battery test switch, state of charge, and charging indicator allow checking of the battery state and monitoring of the recharge process.

Dimensions:

Height: 1.7 inches    Width: 7.5 inches    Depth: 11 inches    Weight: 46oz