Sequoia AMP2100

2 channel voltage amplifier

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Key Features
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Details

The AMP2100 is a 2 channel amplifier designed for use with 2x HFM-8 E-H or HFM-8 E-L heat flux sensors.

The HFM-8 E-H and HFM-8 E-L heat flux sensors have embedded thermocouples. These don't work in the same manner normal thermocouples but do produce low level voltages that can require amplification. The AMP2100 takes the heat flux and thermocouple outputs from the HFM-8 and amplifies these to meet the requirements of the attached data logging equipment.

The AMP2100 uses high quality Lemo connectors to match those provided on the heat flux sensors. A spare connector is provided with the product so that the external data logger equipment can be wired into the output. We supply Lemo part number FGG.0B.304.CLAD52Z  if you need to source any more input connectors for any reason.

Gain on the thermocouple input and heat flux input is fixed at the factory and can be specified at between 10 and 10,000. Non-standard gains can be set if required to meet special requirements. Because heat flux can flow into and out of the sensor, the heat flux sensor output can go positive and negative. The amplifier is supplied with a low noise ±15V linear power supply to allow amplification of positive and negative inputs. In addition, it is possible to specify inputs with a low pass filter of 100mS time constant if required by the application. Zero is set at the factory and offsets can be applied at this time by special order.

Amplifier Specification

Power Supply ±12 to ±15V
Supply Current 16mA
Output: ±10V
Maximum Load 5KΩ
Rise Time 2mS 10-90%, G=1000
Zero Temperature Coefficient 0.1µV/°C
Input noise voltage 0.2µV peak-peak 1-10Hz
Span Temperature Coefficient 30ppm/°C typical
Gain Tolerance ±0.1% (0.25% at G=10000)
Input Bias Current 1nA

Whats in the box?

  • AMP2100 amplifier
  • ±15V linear power supply (switchable 115V / 230V, 50-60Hz operation) with UK and European power cords
  • 1 male Lemo connector

Ordering Options

Part numbers are constructed as follows:

AMP2100-HFGain-TGain

Where
AMP2100 = Model number
HFGain = Gain of Heat Flux Channel
TGain = Gain of Temperature Channel

Add "F" to the end of the gain to specify the 100mS filter

Example: AMP2100-1000-25F specifies an amplifier with Heat Flux input gain set to 1000 and Temperature input gain set to 25 with the 100mS filter applied.

Specifications
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