Detect TYPE
Detector type
FARAD
Faraday collector, EP 422
SEM
SEV (design configurable), EP 422
ION-CNT
Ion counter, CP 400
EXTERN 1
External analog input of QC 700 (EXT IN 1)
EXTERN 2
External analog input of QC 700 (EXT IN 2)
A-INPUT (1–n)
Analog signals via IO 700/IO 720 (analog channels 1 – n)
Tbl. 26:
Detector types QC 700
Detector type
Measuring ranges
Operating modes
Resolution
FARAD, SEM
10
-12
– 10
-5
A fsd
FIX and AUTO ranges
16 bit
13)
(per range)
EXTERNAL
GAIN 1: ±10.240 V
GAIN 10: ±1.024 V
FIX Range
16 bit
14)
ION-CNT
10
-2
– 10
8
cps
(practical use up to 10
6
to 10
7
cps)
AUTO Range
for mass MODE:
SAMPLE: 1 / DWELL
STAIR: 2 / SPEED
SCAN: u / SPEED
Tbl. 27:
Measuring ranges and resolution QC 700
Parameter
Value
Filter type
Low-pass, two-stage, effective for pre-amplifier and external inputs
Filter time constants
can be selected automatically or in 9 stages:
5, 18, 85, 400 μs; 1,7, 8, 40, 180, 800 ms
Step response
τ
63
: Filter time constant
Settling time to ± 1 ‰: t
s
≈ 4 x τ
63
Tbl. 28:
Analog filter QC 700
τ
6 3
t
s
Fig. 53:
Filter time constant QC 700
Parameter
Value
NORMAL (N)
Low pass (mean value)
FIR (F)
Finite impulse response
Tbl. 29:
Digital filter QC 700
15.1.3 Ion source supply IS 716
Parameter
Value
Suitable for
System chassis SC 700
Required plug-in positions 4
Quantity per system
max. 2
13) is additionally increased through averaging
14) is additionally increased through averaging
Technical data and dimensions
63/70
Содержание HIQUAD QMG 700
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