RigExpert REAMP User manual

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REAMP: Accurate power consumption logger
To ease the life of IoT developers
When you want to achieve the longest
battery life possible, you need an accurate
and reliable power measurement tool.
So REAMP is a best choice
for your Ultra Low Power projects.
REAMP acts as very stable and accurate
power source for Device Under the Test
(DUT).
This allows to see even subtle changes in
the power consumption profile of the
DUT.
Features:
•Accurate Current measurements in the wide range from 10µA to 1A
•Two channels for Voltage measuring
•Sample rate from 10 Hz to 10 kHz
•TRIG and SYNC gates to synchronize logger with target board and vice versa
•Time-limit and infinite measurements modes
•Built-in Li-Ion battery for cases when DUT current consumption is over 500 mA
•Comprehensive power consumption analysis with PC Software
•Easy navigation both for short or giant measurement data sets, zooming and scrolling
features
•Consumption averaging as well as real-time analysis
•Battery Life Calculator
•Ready-to-use Multi-OS software for Windows®, Linux® and macOS®
Use REAMP at your ULP DIY projects to quickly achieve success.

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1. Intro
REAMP POWER CONSUMPTION LOGGER (REAMP) is designed for testing the power
consumption modes of various devices powered by direct current with a voltage from 1.8V to
5V.
Furthermore, REAMP itself is a source of supply voltage for the device under test (DUT) with a
wide selection range: from 1.8V to 5.2V with a 50mV step.
REAMP allows you to measure instantaneous values of the consumption current and record
them in a log file, mark the maximums and minimums, perform averaging over a specified time
interval, calculate the duration of the DUT operation from an autonomous source, determine
time intervals, and much more.
The current measurement range is from 10µA to 1A (100dB).
Additionally, there are two input channels for voltage measurement at the DUT points of
interest to the user. The voltage measurement range is from 20mV to 5V.
The sampling frequency is from 10 Hz to 10 kHz.
The device will be of interest to developers of IOT, USB, and other devices where the ability to
place the device under test into sleep mode with minimal power consumption is critical. Power
supply and operation of the device are provided by connecting it to a computer USB port.

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2. Functional diagram and connection
Fig. 2.1. Functional and connection diagram
•DUT—device under test
•#0—current measurement channel
•#1—1st voltage measurement channel
•#2—2nd voltage measurement channel
•SYNC—output for synchronization of the external process with the measurement triggering
process
•TRIG—input from the external source for measurement triggering
A 6-position connector on the device front panel is used to connect the DUT. The designation of
the pins is shown in Fig. 2.1. Since the DUT receives power directly from the REAMP, at least
two connections are required for its operation: Vout and GND.
Connect to your PC with a TYPE A–TYPE B USB cable. To operate the device, use the
RigExpert AMP Logger (REAMP) software running under OS Windows 7, Windows 10.

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3. Installation
Use this link https://rigexpert.com/products/kits/reamp/downloads/ to download and install
the REAMP Logger software.
Fig. 3.1. SW install
•Please double click on REAMP setup icon, then press NEXT.
•Select the destination folder and press Install.
•Connect REAMP Logger to a USB port of your PC.
•Wait until USB HID drivers are automatically installed.
•Launch SW REAMP Logger and check the main window—see Fig.3.2.

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Fig. 3.2. Main window
Analyze tools
Logging & Powering profile controls
Anomaly detection settings
Sampled data representation
Navigation bar & direct access
Finding anomalies
When you work with a very large amount of data, an anomaly detector can help you to find peaks and
examine them. Just set peaks threshold to view all anomalies then click any of them on Navigate bar to
access directly to appropriate segment of measurements.
ZOOMing data
To zoom move the cursor to the mark you are interested in on the measuring axis and rotate the mouse
wheel. To return to default scale just double click appropriate axis.
You can also select a piece of data with the mouse to enlarge it.

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4. Basic operation
•The device can be operated in two modes:
•Stop mode.
•Logging mode—performing instantaneous measurements with recording in a log file
(hereinafter referred to as measurement mode). In the measurement mode, configuration and
control functions (except for the “STOP” button) and “Show Report” are not available.
Connect the DUT according to diagram Fig. 2.1.
To ensure normal operation of the DUT, set the required supply voltage and choose the power
source.
Since a USB 2.0 port cannot provide an output current of more than 500 mA, the REAMP has a
built-in Li-ion battery.
The battery is automatically recharged from a USB port. Charging algorithm: CC-CV, 250 mA
current. When the battery is fully discharged (below 3 V), the power source will automatically
switch to USB.
In this case, remember that, until the battery is fully charged, part of the USB port current will
be allocated to charging the battery; therefore, only the remaining part of the total 500 mA
current will be available for powering the DUT. The REAMP contains an internal overload
protection circuit that limits the output current to:
•0.5 A when powered by USB.
•1.5 A when powered by a battery.
4.1. Power control
Fig.4.1. SYNC control.
Choose Power source
Set output voltage
Choose powering method

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logging
POWER
td
Start
Stop
Controlled by the user in stop mode only.
1. Choosing the power source: USB or battery.
2. Setting the output voltage (from 1800mV to 5200mV).
3. Starting the power on load. There are two options:
•Always on.
•Deferred start with a delay linked to the measurement process. The delay time is
100 measurement samples but no more than 100ms—see Fig. 4.2.
Press Apply button for the new settings to take effect.
Fig. 4.2. Delayed power supply
This mode can be useful when tracking abnormal peaks of power consumption when DUT
starts.

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4.2. Triggering control and synchronization
In certain cases, when studying DUT sleep modes, it may be necessary to trigger measurements
synchronously (or with a specific delay) with a process taking place in the DUT circuit. Or vice
versa, the gauge must trigger a process synchronously (or with a delay) relative to the start of
measurements. For this purpose, the REAMP device has TRIG and SYNC signals..
4.2.1. Triggering (TRIG) control
Fig.4.3. TRIG control.
Active level start measuring
Measuring start after specified delay
Measuring starts and stops by the signal
TRIG signal. Input.
The following levels are accepted for this signal:
Low (LOW): U < 1 V.
High (HIGH): 10 V > U > 2.5 V. The active level is HIGH.
It allows an external source to trigger the measurement process. There are three modes
available:
1. The active level triggers the measurement, the user stops the process arbitrarily.
2. The active level triggers the measurement after the configured delay, the user stops the
process arbitrarily.
3. Measurement is triggered and stopped with a signal—see Fig.4.4.

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Fig.4.4. TRIG modes
logging
td
trig
User stop
User stop
1.
2.
3.

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4.2.2. Synchronization (SYNC) control
Fig.4.5. SYNC control
SYNC signal. OPEN-DRAIN output. The following levels are accepted for this signal:
Low (LOW): U < 1 V.
High (HIGH): Up-up > U> 2.5 V.
The active level is LOW. It enables synchronization of the external process with the
measurement triggering process. There are two modes available:
1. Linked with the TRIG signal. Activated with a preset delay by the TRIG signal. Deactivated at
the end of measurements.
2. Linked with the measurement process. Activated with a preset delay after the start of
measurements and deactivated at the end of measurements—see Fig.4.6.
Fig.4.6. SYNC modes
TRIG
SYNC
td

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4.3. Operation in the measurement mode
The measurement mode (logging) is the REAMP device operating mode which allows
instantaneous sampling of the measured value, digitizing, displaying as a graph on the screen,
as well as saving to a log file.
Fig. 4.7. Measurement control
Elements of the measurement control panel—see Fig.4.7.
1. Setting the sampling frequency in kHz. The maximum sampling frequency of 10 kHz is
available when only one gauge channel is chosen.
2. Setting the sampling frequency in 100 μs units.
3. Selecting a gauge channel.
4. Triggering the measurement mode. Each new measurement is performed in a new tab.
5. Quitting the measurement mode.
All settings are only available in the stop mode.

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4.4. Operation in the stop mode
Fig.4.8. Stop mode window.
The screen in the stop mode is shown in Fig.4.8, Fig.3.2.
In this mode, it is possible to change REAMP settings and measurement parameters, switch
between tabs, save measurement results, operate with previously saved log files, navigate
through the log.
•MTI (measuring time interval). Sets the time interval during which measurements are
performed.
•Measurer panel. This panel displays the current averaged current and voltages at the DUT
control points, as well as the input voltage powering the REAMP (USB or battery).
•Mouse hints. Displays the measurable parameters value at the point on the graph to which the
mouse pointer is moved.
•Report bar. Appears when the “Show report” button is pressed. Displays the maximums,
minimums, and averages of the measurable values for the measurement period. In the left part,
the result is displayed for the entire period of time specified in the “Show all” drop-down box—
see DTI (display time interval) in Fig. 4.8. In the right part, the result is displayed for the time
interval currently visible on the screen (DTI).
•DTI (display time interval). Sets a specific time interval that will be instantly displayed on the
graph (squeezed into the main window).
•Time markers and markers hints. Allow the user to define a time interval on the graph section
of interest.

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4.4.1. Working with data
In general, the set MTI (measuring time interval) can be infinitely large. In this case, a
Navigation bar is provided to facilitate working with a large amount of data, —see Fig. 3.2.
Fig.4.9.
Fig.4.9. Navigation bar setup.
In the Navigation bar settings, for each channel of the measurable parameter, you can set
threshold values, the excess of which will be displayed in the Navigation bar. When you click on
a section of the Navigation bar, it will be shown in the main display window.
For a more detailed study of the graph section of interest, you can scale it horizontally and
vertically. This can be done in two ways:
•Hold the left mouse button and select a section on the graph and then release the LMB.
•Place the mouse pointer below the horizontal axis and turn the scroll wheel to zoom
horizontally.
•Similarly, place the mouse pointer on the left of the axis (for current values) or on the right of
the axis (for voltages) to zoom vertically.
Additionally, by placing the mouse pointer below (to the left or to the right) of the desired axis
and holding the LMB, you can drag the graph along the axis. To display the entire time interval
of interest, use the DTI (display time interval) window and the “Show all” button—see Fig.4.8.

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4.4.2. Additional tools
Calculator—see Fig. 4.8. —Tools. Based on the obtained measurements, the calculator allows
you to quickly calculate the duration of the DUT operation from a power source with a given
capacity.
* The list of additional tools will be updated.
5. FW update
Fig.5.1. FW update.
Select Settings → Update -See Fig.5.1.
•Select file.
•Press the “Update” button.

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5. Specification
Number of measuring channels: 3
Measuring range:
•Current –from 10µA to 1А(1 channel)
•Voltage –from 0V to 5V (2 channels)
Sample rate: 10 hZ...10 kHz (10 kHz one channel only)
Measurng results displaying:
•Instant values graph
•Average values in digits format
•Saving data to a log
•Easy navigation using horizontal and vertical zooming
Power supply:
•USB port of PC
•Additional built-in Li-ion battery for using when current consumption is over 500 mA
Interface:
•USB connection to PC (USB 2.0, USB 3.0)
•Operation system Windows 7, Windows 8, Windows 10.
•Application software “RigExpert AMP Logger”
•Supports of 3 languages (EN, UA, RU)
Dimensions: 67 mm x 57 mm x 27 mm
Operation temperature: 0…40 °C
Weigh: 100 g.
Warranty: 2 years
REAMP Logger made in Ukraine.
* All specifications are subject to change without notice or obligation.