HARDWARE / PRODUCTAdded 23 Aug 2026

PSU1

Bartington Instruments
PSU1

A self-contained, portable, and easy-to-use power supply for most Bartington magnetometers, ideal for simple magnetic field measurements and acting as an AC filter for sensor outputs.

Key figurescomparable across the catalogue

Mass
0.615 kg
Largest dimension
148 mm

Normalised to common units so this product can be compared with others in its category. The supplier's own wording is below.

As published by the supplier

Number of input channels
Three
Voltage input range
±10 V
Frequency response (-3dB)
DC to 9.5 kHz (DC coupling)
Frequency response (-3dB) (AC coupling)
0.1 Hz to 9.5 kHz (AC coupling)
Frequency response error
DC to 6 kHz ±2%
Internal measurement noise floor
<200nV/√Hz at 1 Hz (battery powered)
Internal measurement noise floor (2)
<500nV/√Hz at 1 Hz (with mains charger connected)
Linearity
1%
Offset error
0.5% full scale
Operating temperature
0°C to +50°C (0°C to +40°C for charging)
Storage temperature range
+5°C to +30°C long term
Storage temperature range (2)
-10°C to +50°C short term
Storage temperature range (3)
-20°C to +65°C without batteries
Humidity
0–90% non-condensing
Dimensions
106 x 60 x 148 mm
Mass
615 g (battery included)

About

The PSU1 is a portable power supply designed for use with most Bartington magnetometers, offering a convenient solution for magnetic field measurements. It is a self-contained unit that is easy to use, making it suitable for various applications where simple magnetic field readings are required. Beyond its primary function as a power supply, the PSU1 also serves as an AC filter for the sensor’s XYZ outputs, ensuring cleaner signals. Key features include a low-pass filter (9.5kHz) for all sensor outputs and a switchable high-pass filter (0.1Hz). It also converts analogue outputs from Bartington balanced (differential) sensors into unbalanced (single-ended) signals. The unit is battery-powered with internal rechargeable batteries and can also be mains-powered using an AC charging adaptor. Its versatility makes it applicable for tasks such as Compass Safe Distance Testing and supporting Cryogenic Sensors in Quantum Computing.

Documentation

Need the full ICD, test reports or a specific revision? Ask the supplier directly.

Source: www.bartington.com ↗

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