Pfeiffer Vacuum FullRange PBR 260 User Manual

BG 5171 BEN / B (2017-02) PBR 260.oi 17
The PBR 260 has two definable switching on/off ranges with their corresponding
overlapping ranges. The switching on/off range is selected with the <P ↔ BA>
switch and should be chosen in such a way that it is situated outside the process
pressure range. The positions "high" (default) and "low" are available. Preferably,
"low" should be selected as contamination of the hot cathode system is reduced at
a lower pressure.
Caution
Since the switch position is polled only upon activation of the gauge,
the switching on/off range must be selected before the gauge is turned
on.
high
low
5 × 10
-10
hPa
5
.
5
×
1
0
-
3
2
.
4
×
1
0
-
2
3
.
2
×
1
0
-
2
2
.
0
×
1
0
-
2
1000 hPa
high
PiraniHot cathode
5 × 10
-10
hPa
2
.
0
×
1
0
-
3
9
.
9
×
1
0
-
3
1
.
3
×
1
0
-
2
8
.
0
×
1
0
-
3
1000 hPa
low
PiraniHot cathode
Switch position p
on
[hPa] p
off
[hPa]
high 2.4×10
–2
3.2×10
–2
low 9.9×10
–3
1.33×10
–2
Switch position p
lowe
r
[hPa] p
u
pp
e
r
[hPa]
high 5.5×10
–3
2.0×10
–2
low 2.0×10
–3
8.0×10
–3
The gauge is factory-calibrated. Adjustment may become necessary due to use
under different climatic conditions, extreme temperatures, contamination or aging
(→  19).
The measurement accuracy is reduced in the pressure range above 1×10
-2
hPa
and below 1×10
-8
hPa.
Defining the switching on/off
range
Switching on/off thresholds
of the hot cathode system
Overlapping ranges
Accuracy

Pfeiffer Vacuum FullRange PBR 260 Specifications

General

Brand	Pfeiffer Vacuum
Model	FullRange PBR 260
Category	Measuring Instruments
Language	English