Owner manual

Table Of Contents
<2. Specications>
2-16
IM 11M12A01-02E 8th Edition : Jan.13,2012-00
2.5 ZA8F Flow Setting Unit and
ZR40H Automatic Calibration Unit
2.5.1 ZA8F Flow Setting Unit
This ow setting unit is applied to the reference gas and the calibration gas in a system
conguration (System 2). Used when instrument air is provided.
This unit consists of a owmeter andow control valves to control the ow rates of calibration gas
and reference gas.
Standard Specications
FIowmeter Scale: Calibration gas; 0.1 to 1.0 l/min. Reference gas; 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)
Tube Connections: Rc1/4 or 1/4FNPT
Reference Gas pressure: Clean air supply of sample gas pressure plus approx. 50 kPa G
(or 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)
Air Consumption: Approx. 1.5 l/min
Weight: Approx. 2.3 kg
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
Model Sufx code Option code Description
ZA8F - - - - - - - - - - - - - - - - - Flow setting unit
Joint
-J
-A
- - - - - - - - -
- - - - - - - - -
Rc 1/4
With 1/4 NPT adapter
Style code *C - - - - - - - - - Style C