Za8F Flow Setting Unit And Zr40H Automatic Calibration Unit; Za8F Flow Setting Unit; Zr40H Automatic Calibration Unit - YOKOGAWA ZR22G User Manual

2.5 ZA8F Flow Setting Unit and

ZR40H Automatic Calibration 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 2). Used when instrument air is provided.
This unit consists of a flowmeter and flow control valves to control the flow rates of calibration gas
and reference gas.
Standard Specifications
Flowmeter Scale:
Construction:
Case Material:
Painting:
Tube Connections:
Reference Gas pressure: Clean air supply of sample gas pressure plus approx. 50 kPaG (or
Air Consumption:
Weight:
Calibration gas (zero gas, span gas) Consumption: Approx. 0.7 l/min (at calibration time only)
NOTE
Use instrument air for span calibration gas, if no instrument air is available, contact YOKOGAWA.
Model and Codes
l
Model Suffix code
ZA8F - - - - - - - -
-J
Joint
-A
Style code *C
Calibration gas; 0.1 to 1.0 l/min. Reference gas; 0.1 to 1.0 l/min.
Dust-proof and rainproof construction
SPCC (Cold rolled steel sheet)
Baked epoxy resin, Dark-green (Munsell 2.0 GY 3.1/0.5 or equivalent)
Rc1/4 or 1/4FNPT
sample gas pressure plus approx. 150 kPa G when a check valve is
used). Pressure at inlet of the Flow Setting Unit.(Maximum 300 kPaG)
Approx. 1.5 l/min
Approx. 2.3 kg
Option code
- - - - - - - - - Flow setting unit
- - - - - - - - - Rc 1/4
- - - - - - - - - With 1/4 NPT adapter
- - - - - - - - - Style C
<2. Specifications>
Description
IM 11M12G01-02EN
2-24
1sh Edition : Mar. 25, 2021-00