SC005 & SC008

Fast Polarity Switching High Voltage Modules

Applications:
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

Electrical Specification

Unit Type

Mode(s)

Output voltage & current range

Changeover time

SC005RCV050

Constant voltage

0 to ±5kV at ±500μA

<50mS

SC008RCV050

Constant voltage

0 to ±8kV at ±500μA

<50mS

SC008RCV050-10

Constant voltage

0 to ±8kV at ±2μA (Nano amp current monitor*)

<50mS

SC008RCC050

Constant current

0 to ±50μA at ±8kV compliance (variable)

<50mS

SC005RCD050

Constant current & voltage

0 to ±50μA / ±500μA at 0 to ±5kV

<50mS

SC008RCD050

Constant current & voltage

0 to ±50μA / ±300μA at 0 to ±8kV

<50mS

SC00xRCx010

-

As above for 10mS equivalents

<10mS

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 coefficient:

<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).

Mechanical Specification

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.

Environmental Specification

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

Download PDF:

Data Sheet