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< 2. Specifications >
2-18
IM 11M12D01-01E
2.5 ZA8F Flow Setting Unit
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ZA8F Flow Setting Unit
This flow setting unit is applied to the reference gas and the calibration gas in a system configuration
(System 1). 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
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)
FIowmeter Scale:
Calibration gas; 0.1 to 1.0 l/min.
Reference gas; 0.1 to 1.0 l/min.
Tube Connections:
Rc1/4 or 1/4
FNPT
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)
Reference Gas Consumption: Approx. 1.5 l/min
Calibration gas (zero gas, span gas) Consumption: Approx. 0.7 l/min (at calibration time only)
Weight:
Approx. 2.3 kg
NOTE
Use instrument air for span calibration gas, if no instrument air is available, contact Yokogawa.
Model and Codes
Model
Suffix code
Option code
Description
ZA8F
- - - - - - - -
- - - - - - - - -
Flow setting unit
Joint
-J
-A
- - - - - - - - -
- - - - - - - - -
Rc 1/4
With 1/4 NPT adapter
Style code
*C
- - - - - - - - -
Style C
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