MPG400 Series Specifications

Measurement range (air, N2)

5 x 10-9 … 1000 mbar

3.8 x 10-9 … 760 Torr

Accuracy (N2)

±30% of reading

1 x 10-8 … 100 mbar

Repeatability

±5% of reading

1 x 10-8 … 100 mbar

Mounting Orientation

ANY

Admissible pressure

<10 (limited to inert gases)

bar (absolute)

Admissible temperature

Operation (ambient)

+5 … +55°C

Storage

-40 … +65°C

Bake-out*

150°C

Filament temperature (Pirani)

120°C

Supply Voltage

At Gauge

+15 … +30 VDC at gauge

At Supply Unit

+16 … +30 VDC with maximum cable length**

Ripple

<1 V (p-p)

Power Consumption

<2 W

Fuse to be connected

<1 AT

Output Signal (Measurement Signal)

Voltage Range

0 … +10.5 V

Measurement Range

+1.82 … +8.6 V

Voltage vs. Pressure

logarithmic, 0.6 volts per decade

Error Signal

No supply

<0.5 V

Pirani sensor, filament rupture

>9.5 V

Output impedance

2 x 10 Ω

Minimum loaded impedance kΩ

10, short-circuit proof

Response Time

p > 10-6 mbar

<10 ms

p = 10-8 mbar

1000 ms

Identification gauge

85, referenced to supply common

Status

Pirani Only Mode

0 V (low)

Pirani & Cold Cathode Combined Mode

15 … 30 V (high)

LED Green

High Voltage On

Electrical Connection

FCC 68 appliance connector,

8 poles, female

Sensor Cable

8 poles plus shielding

Cable Length (max)

<50 (8 x 0.14 mm²)

Operating Voltage

<3.3 kV

Operating Current

<500 μA

Materials exposed to vacuum

stainless steel, Al2O3, FPM75

Mo, Ni, Au, W

*Without electronics and magnetic shielding

**The minimum voltage of the supply unit must be increased proportionally to the length of the sensor cable.