™
The analog pressure output (16 bit resolution) is based on the digital
pressure reading (PR1). Connect the signal to a differential input.
Do not connect the negative side of the analog output to
the power supply return or to any other ground. The
voltage drop from supply current will produce errors in the
analog output.
Converting voltage to pressure:
P = 10
(Vout – c)
V
out
= c + log
10
(P)
c
mbar
5.5
Torr
5.625
Pascal
3.5
Vout vs. Pressure (Torr / mbar, N
2
setup)
The transducer can provide other analog output characteristics than the
standard 1VDC/decade. Refer to Operation and installation manual.
Gas dependence
The MicroPirani™ transducer is based on measurement of thermal
conductivity and consequently its reading depends on gas type and gas
concentration. The transducer is calibrated for Nitrogen, and will read higher
pressure values when exposed to atmospheric air.
US & ASIA:
MKS Instruments, Inc., HPS™
Products, Inc.,
5330 Sterling Drive, Boulder, CO
80301, USA,
Phone: (303) 449-9861
EUROPE:
MKS Denmark ApS
Ndr. Strandvej 119G
DK3150 Hellebaek, Denmark
Phone: +45 44 92 92 99,
Email: [email protected]