Inficon MPG400 - Technical Data

6
tina48e1-c (2017-10) MPG400-401.om
2 Technical Data
Measuring range (air, N
2
) 5×10
-9
… 1000 mbar
Accuracy (N
2
)
≈±30%
in the range 1×10
-8
… 100 mbar
Reproducibility
≈±5%
in the range 1×10
-8
… 100 mbar
Gas type dependence
→ Appendix B
Output signal (measuring signal)
Voltage range 0 … +10.5 V
Measuring range 1.82 … 8.6 V
Voltage vs. pressure logarithmic, 0.6 V / decade
(→ Appendix )
Error signal <0.5 V no supply
>9.5 V Pirani measurement element
defective (filament rupture)
Output impedance
2×10 Ω
Minimum loaded impedance
10 kΩ, short-circuit proof
Response time (pressure dependent)
p > 10
-6
mbar
p = 10
-8
mbar
<10 ms
≈1000 ms
Gauge identification
85 kΩ referenced to supply common
Status Pin 6
p > 10
-2
mbar
Pirani-only mode
Low = 0 V
p < 10
-2
mbar
Cold cathode not ignited
Pirani-only mode
Low = 0 V
p < 10
-2
mbar
Cold cathode ignited
Combined Pirani / cold cathode
mode
High = 15 … 30 V (dc)
Lamp High voltage on (LED on)
Supply
DANGER
The gauge may only be connected to power supplies, instruments or
control devices that conform to the requirements of a grounded extra-
low voltage (PELV). The connection to the gauge has to be fused
1)
.
Supply voltage at the gauge 15.0 … 30.0 V (dc) (ripple ≤ 1 V
pp
)
Power consumption ≤2 W
Fuse
1)
≤1 AT
The minimum voltage of the power supply must be increased proportionally to the
length of the sensor cable.
Voltage at the supply unit with
maximum line length
16.0 … 30.0 V (dc) (ripple ≤ 1 V
pp
)
1)
INFICON controllers fulfill these requirements.