Honeywell ACM 150 - Psig; Ppm; Tlv; Twa

ACM 150
165
G.8. PSIG
Pounds per square inch gauge, relative to atmospheric pressure at sea level.
G.9. PPM
The ACM 150 monitor reports concentration values for gases in parts per million (PPM)
and parts per hundred thousand (PPHT) (water vapor only).
A pure gas would have a value of 100% concentration (by volume). One part in one million
(1 PPM) is 0.0001% or 100% divided by 1 million. 1 PPHT = 10 PPM. These are the
relationships between PPB, PPM, and %:
PPM
%
0.01
0.000001
0.1
0.00001
1
0.0001
10
0.001
1,000
0.1
1 million
100.0
G.10. TLV
Threshold limit value.
G.11. TWA
Time-weighted average.
G.12. PPC
Panel PC: It is a significant part of displaying gas monitoring data and setting input by
touchscreen. It is a Touchscreen computer.
G.13. SBC
Single board PC: It is a significant part of connecting PPC to the FTIR bench.
G.14. QNX
It is an operating system. ACM 150 Gen1 PPC uses QNX.