Za8F Flow Setting Unit And Zr40H Automatic Calibration Unit; Za8F Flow Setting Unit - YOKOGAWA EXAxtZR Instruction Manual

2.5 ZA8F Flow Setting Unit and ZR40H Automatic Cali-
bration Unit
2.5.1

ZA8F Flow Setting Unit

IM 11M12A01-02E
This flow setting unit is applied to the reference gas and the calibration gas in a system
configuration (System 2).
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 1/4FNPT
Reference Air pressure: Clean air supply of measured gas pressure approx. 50 kPa G
(or measured gas pressure plus approx. 150 kPa G when a cheack valve is used)
pressure at inlet of the auto-calibration unit.(Maximun 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.
Model Suffix code Option code
ZA8F
-J
Joint
-A
Style code *B
Description
Flow setting unit
Rc 1/4
With 1/4" NPT adapter
Style B
T2.5E.EPS
2. Specifications
2-17