Owner manual
Table Of Contents
- Introduction
- CONTENTS
- 1. Overview
- 2. Specifications
- 2.1 General Specifications
- 2.2 General use Separate type Detector and Related Equipment
- 2.3 Separate type Detector for High Temperature and Related Equipment
- 2.4 ZR402G Separate type Converter
- 2.5 ZA8F Flow Setting Unit and ZR40H Automatic Calibration Unit
- 2.6 ZO21S Standard Gas Unit
- 2.7 Other Equipments
- 2.7.1 Dust Filter for the Detector (K9471UA)
- 2.7.2 Dust Guard Protector (K9471UC)
- 2.7.3 Ejector Assembly for High Temperature (E7046EC, E7046EN)
- 2.7.4 Stop Valve (L9852CB, G7016XH)
- 2.7.5 Check Valve (K9292DN, K9292DS)
- 2.7.6 Air Set
- 2.7.7 Zero Gas Cylinder (G7001ZC)
- 2.7.8 Cylinder Pressure Reducing Valve (G7013XF, G7014XF)
- 2.7.9 Case Assembly for Calibration Gas Cylinder (E7044KF)
- 2.7.10 ZR22A Heater Assembly
- 3. Installation
- 3.1 Installation of General-purpose Detector
- 3.2 Installation of High Temperature Detector (ZR22G-015)
- 3.3 Installation of the ZR402G Converter
- 3.4 Installation of ZA8F Flow Setting Unit
- 3.5 Installation of ZR40H Automatic Calibration Unit
- 3.6 Installation of the Case Assembly(E7044KF)
- 3.7 Insulation Resistance Test
- 4. Piping
- 5. Wiring
- 6. Components
- 7. Startup
- 7.1 Checking Piping and Wiring Connections
- 7.2 Checking Valve Setup
- 7.3 Supplying Power to the Converter
- 7.4 Touchpanel Switch Operations
- 7.5 Confirmation of Converter Type Setting
- 7.6 Confirmation of Detector Type Setting
- 7.7 Selection of Sample Gas
- 7.8 Output Range Setting
- 7.9 Setting Display Item
- 7.10 Checking Current Loop
- 7.11 Checking Contact I/O
- 7.12 Calibration
- 8. Detailed Data Setting
- 9. Calibration
- 10. Other Functions
- 11. Inspection and Maintenance
- 12. Troubleshooting
- Customer Maintenance Parts List CMPL 11M12A01-02E
- Customer Maintenance Parts List CMPL 11M12C01-01E
- Customer Maintenance Parts List CMPL 11M12A01-11E
- Customer Maintenance Parts List CMPL 11M03B01-10E
- Customer Maintenance Parts List CMPL 11M03B01-05E
- Customer Maintenance Parts List CMPL 11M03D01-01E
- Revision Information

<2. Specications>
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
conguration (System 2). Used when instrument air is provided.
This unit consists of a owmeter and ow control valves to control the ow rates of calibration gas
and reference gas.
Standard Specications
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 Sufx code Option code Description
ZA8F - - - - - - - - - - - - - - - - - Flow setting unit
Joint
-J
-A
- - - - - - - - -
- - - - - - - - -
Rc 1/4
With 1/4 NPT adapter
Style code *C - - - - - - - - - Style C