|
 SC Source Series Data Sheet
SC005 & SC008 – constant current / constant voltage types
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
- True zero volt crossing
- Short circuit and flashover proof, fully screened metal case for good EMI immunity
|
This range of high performance mass spectrometer source supplies has been specifically designed to meet the needs of today’s high throughput mass spectrometers. Featuring Tru-Current™ technology with control at the APCI source, and fast polarity changeover in less than 10mS, these supplies are ideal for multimode source applications where changeover and setting time are critical.
|
Electrical Specification
|
|
|
Mode(s)
|
Output voltage & current range
|
Changeover time
|
| SC005RCV010 |
Constant voltage |
0 to ±5kV at ±500µA |
<10mS |
| SC008RCV010 |
Constant voltage |
0 to ±8kV at ±300µA |
<10mS |
| SC008RCV010-1x |
Constant voltage |
0 to ±8kV at ±2µA (Nano amp current monitor) |
<10mS |
| SC008RCC010 |
Constant current |
0 to ±50µA at ±8kV compliance (variable) |
<10mS |
| SC005RCD010 |
Constant current & voltage |
0 to ±50µA / ±500µA at 0 to ±5kV |
<10mS |
| SC008RCD010 |
Constant current & voltage |
0 to±50µA /±300µA at 0 to ±8kV |
<10mS |
| SC00xRCx050 |
-
|
As above for 50mS equivalents |
<50mS |
For corona source applications (constant current mode) the minimum controllable current is 2μA. For
special versions of these units we would be pleased to discuss your application with you.
|
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 input:
V for CV option, C for CC option |
0 to +5V analogue input for rated negative or positive output, accuracy ±2%,
Zin 100K. |
Compliance input:
C for CV option, V for CC option |
0 to +5V analogue input for rated output, accuracy ±2%, Zin 100K.
User accessible preset potentiometer, 0 to +5V available (pin 3). |
| Mode input (RCD types): |
TTL: Hi = constant voltage, Lo = constant current, internal +5V pull up. |
| Voltage & Current monitors: |
0 to +5V 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 (CV only types)
(CC types) |
0.75m of URM 76 cable
0.75m of Belden cable
(all are un-terminated, or customer specified connector to order) |
|
