Summary of SAELIG INTRODUCES RBD 9103 USB GRAPHING PICOAMMETER
The RBD 9103 USB Graphing Picoammeter is a portable device measuring bipolar DC current from picoamps to milliamps. It features high-speed sampling, optional bias capabilities, and robust 5kV DC voltage isolation for use in noisy environments like synchrotron beam lines. Compatible with various operating systems and software, it supports multi-channel synchronization for complex experimental setups.
Parts used in the RBD 9103 USB Graphing Picoammeter:
- RBD 9103 USB Graphing Picoammeter unit
- BNC input connector
- Optional built-in fixed +90VDC bias module
- External low-noise DC power supply (optional)
- NIST-traceable calibration certificate
- User-friendly PC software interface
This programmable current logger can measure bipolar picoamps to milliamps, with unique features such as 5kV DC voltage isolation.

Saelig Company, Inc. announces the availability of the RBD 9103 USB Graphing Picoammeter, a compact, versatile, general-purpose picoammeter designed to accurately measure DC current from nanoamps to milliamps via its isolated BNC input. This rugged, portable, and affordable picocurrent sensor is available with high-speed and high-voltage options, optional bias, and 5kVDC float isolation. The 9103 USB Picoammeter measures bi-polar DC current and can be biased from an optional built-in fixed +90VDC bias, or an external low-noise DC power supply. It comes with a NIST-traceable calibration certificate.
The 9103 can take accurate current measurements from 1pA to 2.499mA at sample rates up to 500Sa/s. The user-friendly PC software interface supplied provides optimal control and quick access to all functions such as data recording and graphing. The 9103 is also compatible with OSx, Linux, Matlab, and LabView, and can be controlled via a simple ASCII interface.
The 9103 is available in four models:
- Standard: sample rate 40Sa/s and optional 90 V fixed or external bias.
- High-speed: sample rate 500Sa/s and optional 90 V fixed or external bias.
- High-voltage: sample rate 40Sa/s, isolated input can float up to 5kVDC
- High-speed / High-Voltage: sample rate 500Sa/s, floats up to 5 kV DC
Designed to provide precise bipolar DC current measurements even in noisy environments such as synchrotron beam lines, the 9103 is equally suited for diode and IC I/V characterization. With unique qualities like DC voltage isolation from chassis ground to 5kV, possibilities for researchers include direct DC current measurement of very small electron and photo multiplier signals. Electron and ion beam measurements can be biased to reduce secondary electrons or to retard the beam as needed for experiments. The 9103 is also multi-channel capable – up to 127 units can be synchronized together.
Read more: SAELIG INTRODUCES RBD 9103 USB GRAPHING PICOAMMETER
- What current range can the RBD 9103 measure?
The device measures accurate current from 1pA to 2.499mA. - Can the 9103 operate at high sample rates?
Yes, the high-speed model supports sample rates up to 500Sa/s. - Does the picoammeter offer voltage isolation?
Yes, it provides unique DC voltage isolation from chassis ground up to 5kV. - How can the user control the device via computer?
It uses a user-friendly PC software interface or a simple ASCII interface. - Is the device compatible with Linux or Matlab?
Yes, it is compatible with OSx, Linux, Matlab, and LabView. - Can multiple units be synchronized together?
Yes, the system is multi-channel capable with up to 127 units synchronized. - What optional bias options are available?
Users can choose an optional built-in fixed +90VDC bias or an external low-noise DC power supply. - Is calibration included with the purchase?
Yes, it comes with a NIST-traceable calibration certificate.
