Yokogawa Single Channel Oxygen Analyzer System ZR22/ZR402 - Manual (Page 36)

IM 11M13A01-02E 2-17
2. Specifications
2.5 ZA8F Flow Setting Unit and ZR40H Automatic Cali-
bration Unit
2.5.1 ZA8F Flow Setting Unit
This flow setting unit is applied to the reference gas and the calibration gas in a system
configuration (System 1).
This unit consists of a flow meter and flow control valves to control the flow of calibra-
tion gas and reference air.
Standard Specifications
FIowmeter:
Calibration gas; 0.1 to 1.0 l/min. Reference air; 0.1 to 1.0 l/min.
Construction: Dust-proof and rainproof construction
Case Material: SPCC (Cold rolled steel sheet)
Painting: Baked epoxy resin, Dark-green (Munsell 2.0 GY 3.1/0.5 or
equivalent)
Pipe Connections: Rc1/4 or 1/4NPT
Reference Air pressure:Clean air supply of measured gas pressure1approx. 50 kPa G (or
measured gas pressure plus approx. 150 kPa G when a check valve
is used) pressure at inlet of the auto-calibration unit.(Maximum 300
kPaG)
Air Consumption: Approx. 1.5 l/min
Weight: Approx. 2.3kg
Calibration gas (zero gas, span gas) flow 0.7 l/m (at calibration time only)
Note
Use instrument air for span calibration gas, if no instrument air is available, contact
YOKOGAWA.
ZA8F
-J
-A
T2.5E.EPS
Model Suffix code Option code Description
Flow setting unit
Joint
With 1/4 NPT adapter
Style B
Rc 1/4
Style code *B