Yokogawa Integral Oxygen Analyzer ZR202 - Manual (Page 63)

IM 11M12A01-05E 4-7
4. Piping
Piping Diagram of ZR20H
SPAN IN
REF. IN
ZERO IN
F4.11E.EPS
Calibration gas
Reference gas
ZR202G body
Span-gas
solenoid valve
Span-gas flowmeter
Reference-gas flowmeter
To Air set
To Zero-gas cylinder
Needle valve
Autocalibration unit
Span-gas flowmeter
Zero-gas
solenoid valve
Check valve