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HiTek Power® MSRD Series
Photo of XS Series Power Supply

Mass Spectrometry Power Suplies

The MSRD series consists of high-stability, reversible source modules that perform reliably even under short-circuit or arc conditions. It pairs fast, reversible bias output with a floating +3 kV, 400 μA detector output, offers a differential programming input, and can be set by an external voltage.

The modular design of AE high voltage products for mass spectrometry enables an array of performance features and combinations. From simple options, such as cable length and connector type, to complete custom designs, we deliver solutions that precisely fulfill your specific requirements.
  • Output power: 1.8 W, reversible
  • Output voltage: 0 to ±12 kV (bias), 0 to +3 kV (detector)
  • Ripple: < 200 mV (bias and detector)
  • Temperature coefficient: 25 ppm per°C (bias), 300 ppm per °C (detector); lower values available
  • Stability: 100 ppm (bias)
  • Variable floating detector: 1.2 W
  • Bias four quadrant output stage
  • Bias controllable through zero
  • High reliability
Output Power Bias: 1.8 W max
Detector: 1.2 W max
Output Voltage Bias: 0 to ±12 kV
Detector: 0 to +3 kV
Output Current Bias: 150 to 250 μA, depending on model
Detector: 400 μA
Input Coltage +24 VDC ±10%
Input Current 1.4 A max, depending on model
Line Regulation Bias: < 1.2 V
Detector: < 3 V for a 5% input voltage change
Load Regulation Bias: < 1.2 V
Detector: < 3 V for a 10 to 100% load change
Ripple Bias: < 200 mV
Detector: < 200 mV
Voltage Control Bias: 0 to +10 V for full scale accuracy ±2%
Detector: 0 to +10 V for full scale accuracy ±5%
Current Control Bias: fixed at 100 μA above nominal
Detector: fixed at 500 μA
Voltage Monitor Bias: 0 to ±10 V for full scale accuracy ±2%
Detector: 0 to +10 V for full scale accuracy ±5 %
Current Monitor Bias: 0 to ±10 V for full scale accuracy ±5%
Detector: --
Polarity Control Bias output, < 1 V = negative output, > 3.5 V or open = positive output
Inhibit Bias and detector outputs < 1 V or open = off/inhibited, > 3.5 V = operating
Stability Bias: 100 ppm
Detector: 1000 ppm over a 1 hr period
Limits Units have limits for over-voltage, short-circuit, and intermittent arcs to ground.
Reliability MTBF > 50,000 hr
Humidity 80% max relative humidity up to 31°C (88°F), reducing linearly to 50% at 40°C (104°F); non-condensing (ref EN61010-1)
Safety Meets the requirements of the low-voltage directive, 2006/95/EC by complying with BS EN61010-1:2010 when installed as a component part of compliant equipment. Units are CE-marked accordingly.
RoHS Meets the requirements of EU directive 2011/65/EC on the restriction of use of certain hazardous
substances in electrical and electronic equipment (RoHS)
Construction A fabricated aluminium alloy case is used for good heat dissipation and screening.

Temperature Coefficient Bias: 25 ppm per °C (lower values available upon request)
Detector: 300 ppm per °C (lower values available upon request)
Cooling Convection-cooled
Operating Temperature  10 to 50°C (50 to 122°F)
Storage/Transport Temperature -20 to 85°C (-4 to 185°F)
Operational Altitude Sea level to 2000 m (6500′)
Storage/Transport Altitude Sea level to 18,000 m (59,055′)


Accuracy of specifications in unlocked documents cannot be guaranteed. Please contact your AE representative to confirm specifications.

This series is available in the following models.

Model Input
Current (Max)
MSRD-502 +24 VDC ±5 kV 250 µA 1.8 W
MSRD-752 +24 VDC ±7.5 kV 200 µA 1.8 W
MSRD-103 +24 VDC ±10 kV 175 µA 1.8 W
MSRD-123 +24 VDC ±12 kV 150 µA 1.8 W