iseg SHQ 122 - General Information; Short Description; Technical Data and Auxiliary Information

1 General information
1.1 Short description
The modules of the series SHQ are desk top high voltage power supplies which offer output voltages up to 6 kV for the use in
industry and research.
Main Characteristics:
• High voltage power supplies with front-panel operation and remote control via serial interface
• Output voltages with very low ripple and noise
• Compact housing with one or two independent high voltage sources
• Polarity is manually switchable with switches on the rear side of the housing
• Simultaneous display of current and voltage in a High Resolution format on the 2-line LCD
• Output short circuit and overload protection
1.2 Technical Data and auxiliary information
SPECIFICATIONS SHQ
Single channel HV Power Supply SHQ 122 SHQ 124 SHQ 126
Dual channel HV Power Supply SHQ 222 SHQ 224 SHQ 226
Output voltage V
nom
2 kV 4 kV 6 kV
Output current I
nom
6 mA 3 mA 1 mA
Ripple and noise Typ.: < 2 mV
P-P
max.: 5 mV
P-P
Stability:
[ΔV
out
vs. ΔV
in
]
< 3 • 10
-5
[ΔV
out
vs. ΔR
load
]
< 5 • 10
-5
Temperature coefficient 30 ppm/K
Voltage
measurement
resolution ADC: 100 mV / 6-digit LCD display
(Option VHR: 10 mV for SHQ x22 and x24 only)
accuracy: ± (0,05% V
OUT
+ 0,02% V
nom
) for one year
Voltage
Settings
Manual / DAC: 10-turn potentiometer / digital via serial interface
resolution DAC: 100 mV / Option VHR: SHQ x22M with 30 mV; SHQ x24M with 60 mV
Current
measurement
2 ranges / 6-digit LCD display
resolution ADC: Range mA: I
nom
≥ I
OUT
≥ 100 µA, Resolution: 100 nA
Option 0n1: I
nom
≥ I
OUT
≥ 10 µA Resolution: 100 nA
Accuracy: ± (0,05% I
OUT
+ 0,02% I
nom
)
Range µA: 100 µA > I
OUT
> 20 nA Resolution: 1 nA
Accuracy: ± (0,1% I
OUT
+ 20 nA)
Option 0n1: 10 µA > I
OUT
> 2 nA, Resolution: 100 pA
Accuracy: ± (0,05% I
OUT
+ 2 nA)
Value scope data are guaranteed in the range of (1% * V
nom
) < V
OUT
< V
nom
for one year
Voltage Ramp fixed: 500 V/s (at HV-ON/OFF)
variable: 2 ... 255V/s (at remote control)
Protection hardware voltage limit (V
max
rotary switch in 10%-steps)
hardware current limit (I
max
rotary switch in 10%-steps,
Option IWP: setting with 10-turn potentiometer I
SET
)
SHQ series |Last changed on: 04.07.2017| www.iseg-hv.com 5/16