SR570 Low-Noise Current Preamplifier Procedure

High Voltage Warning

The SR570 contains dangerous voltages capable of causing injury or death. Extreme caution is required whenever the covers are removed. Always ensure the device is connected to a grounded outlet to prevent electrical shocks.

Ventilation

Adequate ventilation is required while operating the SR570, especially when charging the batteries.

Battery Maintenance

Always recharge batteries immediately after use to avoid deep discharge, which can reduce battery life. Store the SR570 in a cool, dry place to prolong battery life.

Grounding and Electrical Safety

Ensure all exposed metal parts of the instrument are properly grounded to avoid electrical shock. Do not apply voltage to the shields or outputs, as the outputs are not protected against connection to any potential other than circuit ground.

Power On Procedure

> Ensure the correct line voltage is selected on the rear panel power entry module. > Depress the POWER switch to turn on the SR570. > If operating on AC power, the LINE indicator should be lit. If on battery power, ensure the battery is charged.

Resetting to Default Settings

> Turn off the power. > Press and hold the FILTER RESET button while turning the unit back on. > The default settings will now be restored, including: - Sensitivity: 1 µA/V - Input Offset: Off - Bias: 0V, off - Gain Mode: Low Noise - Filters: None

Setting Up the Measurement

Select Filter Type

Choose from high-pass, low-pass, or bandpass filters. Use the FILTER TYPE button to toggle between settings.

Adjust Filter Frequency

Use the up/down buttons in the FILTER FREQ menu to set the 3 dB points for the filter.

Input Offset Current (Optional)

Select the input offset current from the INPUT OFFSET menu. Toggle the ON/OFF button to activate.

Bias Voltage (Optional)

Use the up/down buttons in the BIAS VOLTAGE section to set the desired voltage (-5V to +5V). Activate by pressing the ON button .

Input Signal Connection

Connect the signal of interest to the input BNC using a low-noise coaxial cable. Minimize cable length to reduce capacitance and preserve signal integrity.

Adjust Frequency Compensation (Optional)

Adjust the FREQ COMP potentiometer to compensate for input capacitance. Test with an external square wave signal to optimize the output waveform.

Shutdown Procedure

Turn off the unit by pressing the POWER switch. If operating on battery power, charge the unit by connecting it to AC power as soon as the LOW BATT LED lights.

SR570 Low-Noise Current Preamplifier Procedure

SR570 Low-Noise Current Preamplifier Procedure

Safety Precautions

High Voltage Warning

The SR570 contains dangerous voltages capable of causing injury or death. Extreme caution is required whenever the covers are removed. Always ensure the device is connected to a grounded outlet to prevent electrical shocks.

Ventilation

Adequate ventilation is required while operating the SR570, especially when charging the batteries.

Battery Maintenance

Always recharge batteries immediately after use to avoid deep discharge, which can reduce battery life. Store the SR570 in a cool, dry place to prolong battery life.

Grounding and Electrical Safety

Ensure all exposed metal parts of the instrument are properly grounded to avoid electrical shock. Do not apply voltage to the shields or outputs, as the outputs are not protected against connection to any potential other than circuit ground.

Power On Procedure

> Ensure the correct line voltage is selected on the rear panel power entry module. > Depress the POWER switch to turn on the SR570. > If operating on AC power, the LINE indicator should be lit. If on battery power, ensure the battery is charged.

Resetting to Default Settings

> Turn off the power. > Press and hold the FILTER RESET button while turning the unit back on. > The default settings will now be restored, including: - Sensitivity: 1 µA/V - Input Offset: Off - Bias: 0V, off - Gain Mode: Low Noise - Filters: None

Setting Up the Measurement

Select Filter Type

Choose from high-pass, low-pass, or bandpass filters. Use the FILTER TYPE button to toggle between settings.

Adjust Filter Frequency

Use the up/down buttons in the FILTER FREQ menu to set the 3 dB points for the filter.

Input Offset Current (Optional)

Select the input offset current from the INPUT OFFSET menu. Toggle the ON/OFF button to activate.

Bias Voltage (Optional)

Use the up/down buttons in the BIAS VOLTAGE section to set the desired voltage (-5V to +5V). Activate by pressing the ON button .

Input Signal Connection

Connect the signal of interest to the input BNC using a low-noise coaxial cable. Minimize cable length to reduce capacitance and preserve signal integrity.

Adjust Frequency Compensation (Optional)

Adjust the FREQ COMP potentiometer to compensate for input capacitance. Test with an external square wave signal to optimize the output waveform.

Monitor Output

Connect to the OUTPUT BNC to access the amplified signal. Ensure the output remains below 1V RMS to avoid slew rate limitations.

Shutdown Procedure

Turn off the unit by pressing the POWER switch. If operating on battery power, charge the unit by connecting it to AC power as soon as the LOW BATT LED lights.

For more information refer to manual.

Safety Precautions

High Voltage Warning

The SR570 contains dangerous voltages capable of causing injury or death. Extreme caution is required whenever the covers are removed. Always ensure the device is connected to a grounded outlet to prevent electrical shocks​.

Ventilation

Adequate ventilation is required while operating the SR570, especially when charging the batteries.

Battery Maintenance

Always recharge batteries immediately after use to avoid deep discharge, which can reduce battery life. Store the SR570 in a cool, dry place to prolong battery life​.

Grounding and Electrical Safety

Ensure all exposed metal parts of the instrument are properly grounded to avoid electrical shock​. Do not apply voltage to the shields or outputs, as the outputs are not protected against connection to any potential other than circuit ground.

Power On Procedure

> Ensure the correct line voltage is selected on the rear panel power entry module. > Depress the POWER switch to turn on the SR570. > If operating on AC power, the LINE indicator should be lit. If on battery power, ensure the battery is charged.

Resetting to Default Settings

> Turn off the power. > Press and hold the FILTER RESET button while turning the unit back on. > The default settings will now be restored, including: - Sensitivity: 1 µA/V - Input Offset: Off - Bias: 0V, off - Gain Mode: Low Noise - Filters: None

Setting Up the Measurement

Select Filter Type

Choose from high-pass, low-pass, or bandpass filters. Use the FILTER TYPE button to toggle between settings.

Adjust Filter Frequency

Use the up/down buttons in the FILTER FREQ menu to set the 3 dB points for the filter.

Input Offset Current (Optional)

Select the input offset current from the INPUT OFFSET menu. Toggle the ON/OFF button to activate.

Bias Voltage (Optional)

Use the up/down buttons in the BIAS VOLTAGE section to set the desired voltage (-5V to +5V). Activate by pressing the ON button .

Input Signal Connection

Connect the signal of interest to the input BNC using a low-noise coaxial cable. Minimize cable length to reduce capacitance and preserve signal integrity.

Adjust Frequency Compensation (Optional)

Adjust the FREQ COMP potentiometer to compensate for input capacitance. Test with an external square wave signal to optimize the output waveform.

Monitor Output

Connect to the OUTPUT BNC to access the amplified signal. Ensure the output remains below 1V RMS to avoid slew rate limitations.

Shutdown Procedure

Turn off the unit by pressing the POWER switch. If operating on battery power, charge the unit by connecting it to AC power as soon as the LOW BATT LED lights.

For more information refer to manual.

The SR570 contains dangerous voltages capable of causing injury or death. Extreme caution is required whenever the covers are removed. Always ensure the device is connected to a grounded outlet to prevent electrical shocks.

Always recharge batteries immediately after use to avoid deep discharge, which can reduce battery life. Store the SR570 in a cool, dry place to prolong battery life.

Ensure all exposed metal parts of the instrument are properly grounded to avoid electrical shock. Do not apply voltage to the shields or outputs, as the outputs are not protected against connection to any potential other than circuit ground.