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Applied Kilovolts - Model SC Series -High Voltage Modules for Mass Spectrometry
The SC Series High Voltage Modules are engineered for precision applications in mass spectrometry, specifically in Electro Spray Ionization (ESI) and Atmospheric Pressure Chemical Ionization (APCI) sources. They offer constant voltage ESI capabilities with outputs of ±5kV or ±8kV, suitable for both standard and nano spray applications, guaranteeing stable performance at currents of 500μA / 300μA and 2μA. The Tru-Current APCI provides a current range from less than 2μA to ±50μA, with adjustable compliance voltage, ensuring adaptability to various operational demands. These modules are designed for fast polarity switching, achieving switch times within 10ms or 50ms, depending on load capacitance and voltage/current range. They guarantee true zero volt crossing for precise operations and are manufactured to be short circuit and flashover proof, housed in a fully screened metal case for optimal EMI immunity.
Application: Mass spectrometer Electro Spray Ionization & Atmospheric Pressure Chemical Ionization source
- Constant voltage ESI: ±5kV or ±8kV types @ 500μA / 300μA & 2μA for nano spray applications
- Tru-Current™ APCI: <2μA to ±50μA with adjustable compliance voltage
- Fast polarity switching within 10mS or 50mS types (limited by load capacitance & V/ I range)
- True zero volt crossing
- Short circuit and flashover proof, Fully screened metal case for good EMI immunity
- Input : +24 volt dc ±10% <1A. 0V input common to HV return and chassis.
- Output, Voltage / Current : See table above.
- Ripple : <0.1% p/p
- Line Regulation : <300ppm of rated output for ±10% input change.
- Load Regulation : <0.5% at rated output.
- Temperature Co-Efficient : <100ppm/oC at rated output
- Drift (after 1 hour warm up) : 100ppm per hour, 200ppm per 8 hours.
- Control: V for CV and C for CC option : 0 to +5V analogue input for rated negative or positive output, accuracy ±2%, Zin 100K.
- Compliance input: Current for CV option,
- Voltage for CC option : 0 to +5V analogue input for rated output, accuracy ±2%, Zin 100K. User accessible preset
- potentiometer, 0 to +5.1V available (pin 3).
- Mode input (RCD types): : TTL: Hi = constant voltage, Lo = constant current, internal +5V pull up.
- Voltage & Current monitors: : 0 to +5V (*10V for nA types) for rated negative or positive output, accuracy ±2%, Zout 10K.
- Polarity input : TTL: Hi = +ve, Lo = -ve, internal +5V pull up.
- Safety : Conforms to EN61010-1:2001 (stored charge is <45uC).
- Dimensions : 146 x 133 x 48 mm (5.75” x 5.25” x 1.9”)
- Weight : 1200g (2.6 lb) approx
- Mountings : 6 off blind M3 bushes
- Input & Control : 15 way “D” connector
- Output (Un-terminated cable) : CV only types: 0.75m of coaxial cable. CC and nano amp monitor types 0.75m of triaxial cable.
- Operating temperature range : +10 to 45°C indoor use only
- Storage temperature range : -10 to +75°C
- Operating altitude : 2000m
- Storage altitude : 1800m
- Operating humidity : 80% for temperatures up to 31°C, decreases linearly to 50% RH at 40°C
- Storage humidity : <95% RH non-condensing
- Pollution : Pollution categories II