6
BG 5043 BEN / A (2016-10) PTR225_237.oi
2 Technical
Data
Measurement range
1·10
-9
to 1·10
-2
mbar
Measurement uncertainty in the range from 1·10
-8
to 1·10
-4
mbar
Deviation from the characteristic
±30 % of the displayed value
Average temperature coefficient of the
output span
<0,5 % / K of the displayed value
Reproducibility
<4 % of the displayed value
Measurement principle
Cold cathode ionization according to
Penning
Supply voltage
14,5 to 36 V DC; typ. 24 V DC,
2 Vss
Power consumption
<2 W
Protection IP
40
Flammability
UL 94 - V 2
Status displays
Operation (POWER)
orange LED
Ready to measure (ignited) READY
green LED
Switching threshold (active)
(PTR 225 S only)
green LED
Measurement system
detachable
Vacuum connection
DN 25 KF or DN 40 CF
Degassing temperature
see Section 4.3
Internal volume
21 cm
3
approx.
Materials in contact with the medium
stainless steel; CrNi; AL
2
O
3
ceramics;
NiFe; Ni; titanium
Overpressure tolerance
≤
10 bar abs.
(The limits for the flange connections must be observed)
Operating voltage
1,6 kV (current limited to <0,5 mA)
Ignition voltage
2,8 kV (current limited to < 0,5 mA)
Signal output
0 to 10,6 V
Permissible load resistance
Ra
≥
10 k
Ω
Measurement signal
0,66 to 10,0 V
logarithmic 1,333 V / per decade
Status signal (not ignited)
0,4 V
Switching threshold
Relay changeover contact
Adjustment range
1·10
-9
to 1·10
-3
mbar
Hysteresis
±30 % of the adjusted range
Rating
DC 60 V, 0,5 A
Error status
Resting contact when "not ignited";
"HV OFF" or "supply off"
General Data
Measurement System
Signal Output
Switching threshold
(PTR 225 S only)
