INFICON BPG400 ATM to Ultra-High Vacuum Gauge - Manual (Page 8)

8
tina03e1-b (2004-02) BPG400 v1.om
2 Technical Data
Measuring range (air, N
2,
O
2
) 5×10 -10 … 1000 mbar, continuous
Accuracy 15% of reading in the range of
10
-8 … 10 -2 mbar
(after 5 min stabilization)
Repeatability 5% of reading in the range of
10
-8 … 10 -2 mbar
(after 5 min stabilization)
Gas type dependence → Appendix B
Switching on threshold
Switching off threshold 2.4×10 -2 mbar
3.2×10 -2 mbar
Emission current
p ≤7.2×10 -6 mbar
7.2×10 -6 mbar -2 mbar
5 mA
25 µA
Emission current switching
25 µA ⇒ 5 mA
5 mA ⇒ 25 µA
7.2×10 -6 mbar
3.2×10 -5 mbar
Degas emission current
(p <7.2×10
-6 mbar)
≈16 mA (P
degas
≈4 W)
Control input signal 0 V/+24 VDC, active high
(control via RS232
→ 31)
Duration max. 3 min, followed by automatic stop
In degas mode, BPG400 gauges keep supplying measurement values, however
their tolerances may be higher than during normal operation.
Output signal (measuring signal) 0 … +10 V
Measuring range 0.774 V (5×10 -10 mbar)
… +10 V (1000 mbar)
Relationship voltage-pressure logarithmic, 0.75 V/decade
(
→ Appendix A)
Error signal <0.3 V/0.5 V ( → 49)
Minimum loaded impedance 10 k Ω
Display panel
Dimensions
Pressure units (pressure p)
LCD matrix, 32×16 pixels,
with background illumination
16.0 mm × 11.2 mm
mbar (default), Torr, Pa
(selecting the pressure unit
→ 31)
DANGER
The gauge must only be connected to power supplies, instruments or
control devices that conform to the requirements of a grounded extra-
low voltage (SELV-E according to EN 61010). The connection to the
gauge has to be fused (INFICON-controllers fulfill these requirements).
Measurement
Emission
Degas
Output signal
Display ( BPG400)
Power supply