ADC-20 and ADC-24 precision data loggers: Multichannel data loggers offering high resolution, high accuracy and programmable input ranges.
- 24-bit resolution
- Up to 8 true differential inputs
- Up to 16 single-ended inputs
- 7 input ranges (±39 mV to ±2500 mV)
- Fast conversion time
- Digital outputs for control
- Galvanic isolation from the PC to eliminate noise pickup
- PicoLog data acquisition software included
- Software drivers and SDK included
The ultimate in resolution and accuracy
With up to 24-bit resolution the ADC-20 and ADC-24 USB data loggers are able to detect small signal changes. Features such as true differential inputs, galvanic isolation and software-selectable sampling rates all contribute to a superior noise-free resolution and ensure that your measurements are reliable and accurate.
PicoLog 6 software – straightforward from the start
All Pico data acquisition products come complete with PicoLog 6. This powerful yet flexible data acquisition software allows you to collect, manipulate, analyze, display and export data.
Designed from the ground up to be intuitive from the outset, PicoLog 6 allows you to set up the logger and start recording with just a few clicks of the mouse, whatever your level of data logging experience.
From here, starting a capture is simple: plug in the logger, add a channel, press Record, and you’re logging! PicoLog 6 also includes a number of additional features to cater for more advanced data logging needs.
Flexible, multichannel data acquisition
Both the ADC-20 and ADC-24 feature true differential inputs for excellent noise rejection. To give you a very flexible system each differential input can also be configured as two single-ended inputs. With up to eight differential or 16 single-ended inputs on the ADC-24, this flexibility gives you complete control on what type of inputs you use. If you require more channels, you can use multiple PicoLog data loggers on the same PC.
With seven bipolar voltage ranges, the ADC-20 and ADC-24 are also flexible enough to be used with a wide range of sensors and signal types. There's also an external terminal board with screw terminals to allow you to quickly connect and disconnect different sensors.
Additionally, the ADC-24 has four configurable digital input/output channels that can be used to control alarms or other devices.
The flexibility of the ADC-20 and ADC-24 allows you to use these precision data loggers as an advanced multichannel data acquisition system with a low cost per channel.
No need for power supplies or batteries
The high-resolution ADC-20 and ADC-24 are powered directly by your PC — eliminating the need for batteries or a separate power supply, and making them ideal when you need a portable data logger.
The answer to your data acquisition needs
High resolution, true differential inputs, galvanic isolation, and selectable sampling rates combine to ensure that your measurements are always precise and accurate. Configurable inputs, digital inputs and outputs, and programmable voltage ranges give you a truly flexible answer to your data acquisition needs.
When you need the ultimate in high resolution and accuracy, the versatile ADC-20 and ADC-24 provide you with a portable answer with the performance and flexibility you need.
PicoLog 6 data logging software for ADC-20 and ADC-24
PicoLog 6 is a complete data acquisition software package for the Pico Technology ADC-20 and 24 precision voltage-input data loggers. It provides a visual, easy-to-use interface allowing you to quickly set up simple or complex acquisitions and record, view and analyze data.
- Real-time data collection and display
- Visual logger and channel setup for easy configuration and viewing
- Available for Windows 7, 8 and 10 (32 and 64-bit), macOS, Linux and Raspbian for Raspberry Pi
- Virtually unlimited logging capacity to PC
- Robust database format minimizes data loss and corruption
- Simple and complex programmable alarms
- Up to 4 independent graph axes
- Channels can be scaled using lookup table or equation
- Data can be exported as CSV, clipboard image and PDF
- Supports multiple different PicoLog data loggers and PicoScope oscilloscopes on the same PC
Terminal Board User's Guide
Quick Start Guide
|Resolution||20 bits||24 bits|
|Number of Channels ||4 differential / 8 single-ended||8 differential / 16 single-ended|
|Conversion time (per channel)||660 ms, 340 ms, 180 ms, 100 ms, 60 ms||660 ms, 340 ms, 180 ms, 100 ms, 60 ms|
|Voltage ranges||±2500 mV, ±1250 mV||±2500 mV, ±1250 mV, ±625 mV, ±312 mV, ±156 mV, ±78 mV, ±39 mV|
|Gain error||0.2% of reading||0.1% (±39 mV to 1250 mV range), 0.2% (±2500 mV range)|
|Offset accuracy||6 µV (±39 mV range), 7 µV (±78 mV range), 9 µV (±156 mV range), 13 µV (±313 mV range), 20 µV (±625 mV range), 36 µV (±1250 mV range), 400 µV (±2500 mV range)||6 µV (±39 mV range), 7 µV (±78 mV range), 9 µV (±156 mV range), 13 µV (±313 mV range), 20 µV (±625 mV range), 36 µV (±1250 mV range), 400 µV (±2500 mV range)|
The ADC-20 and ADC-24 have four and eight true differential input channels respectively. For flexibility each of these channels can be configured as either one differential channel or two single-ended channels.
Noise-free resolution (bits) for the full range of conversion times (ms)
|Voltage Range||±39 mV||±78 mV||±156 mV||±313 mV||±625 mV||±1250 mV||±2500 mV|
|Model||ADC-24 only||ADC-24 only||ADC-24 only||ADC-24 only||ADC-24 only||ADC-20 and ADC-24||ADC-20 and ADC-24|
Noise rejection: 120 dB typical at 50/60 Hz
Input impedance: Differential: 2 MΩ
Single-ended: 1 MΩ
Common mode input range, channel to common: ±1.9 V (±39 mV to ±1250 mV ranges); ±3.0 V (±2500 mV range)
Common mode input range, common to earth ground: ±30 V
Common mode rejection ratio, channel to common: 95 dB (DC to 60 Hz)
Common mode rejection ratio, common to earth ground: > 125 dB (DC to 60 Hz)
Overvoltage protection: ±30 V between any input and common
Digital I/O: none (ADC-20); 4 bidirectional (3.3 V CMOS) - Output level, high: > 2.40 V, Output level, low: < 0.40 V, Input level, high: > 2.20 V, Input level, low: < 0.88 V (ADC-24)
Isolation (input to input): None
Isolation (input to ground): Galvanic up to ±30 V; AGND and DGND isolated
Reference output: +2.5 V ±2.5 mV @ 2 mA; +5 V ±1.0 V @ 2 mA; –5 V ±1.5 V @ 2 mA;
PicoLog user interface languages: English, French, Italian, German, Spanish, Korean, Japanese, Chinese (simplified), Russian
PC requirements (Minimum): Processor, Memory, Free disk space: As required by the operating system
Ports: USB 1.1
Operating system: Microsoft Windows 7, 8 or 10, 32-bit and 64-bit versions; macOS 10.9 (Mavericks) or later, 64-bit only; Linux*, 64-bit only
* PicoLog 6 for Linux is distributed as an AppImage, so you can install it without superuser permissions: see appimage.org for further information. The software has been tested on Red Hat, OpenSUSE and Ubuntu.
Temperature range, operating, for quoted accuracy 20 °C to 30 °C
Temperature range, operating 0 °C to 45 °C
Temperature range, storage –20 to +60 °C
Humidity range, operating 5 to 80 %RH, non-condensing
Humidity range, storage 5 to 95 %RH, non-condensing
I/O connector: 25-way D female
Power requirements: Powered from USB port, 100 mA (max.); A 4.4 m (13.8 ft) USB cable is permanently attached to the logger
Dimensions: 135 x 184 x 36 mm (5.31 x 7.24 x 1.41 in)
Weight: Approx. 505 g (17.8 oz)
Compliance: European EMC and LVD standards, FCC Rules Part 15 Class A
Warranty: 5 years