2 zr20h automatic calibration unit, Zr20h automatic calibration unit -12 – Yokogawa Integral Oxygen Analyzer ZR202 User Manual
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<2. Specifications>
2-12
IM 11M12A01-04E
2.2.2 ZR20H Automatic Calibration Unit
This automatic calibration unit is applied to supply specified flow of reference gas and calibration gas
during automatic calibration to the detector in a system configuration (System 3).
• Specifications
Equipped with the analyzer when automatic calibration is specified in the suffix code of the ZR202G
Integrated type by selecting either “-A (Horizontal mounting)” or “-B (Vertical mounting)”. The ZR20H
should be arranged when automatic calibration is to be required after the ZR202G has been installed.
Ask Yokogawa service station for its mounting.
Construction:
Dust-proof and rainproof construction; NEMA4X/IP67 (excluding flowmeter)
Mounting:
Mounted on ZR202G, no vibration
Materials:
Body; Aluminum alloy, Piping; SUS316 (JIS), SUS304 (JIS), Flowmeter;
MA (Methacrylate resin), Bracket; SUS304 (JIS)
Finish:
Polyurethane corrosion-resistance coating
Case; Mint green (Munsell 5.6 BG3.3 /2.9)
Cover; Mint green (Munsell 5.6 BG3.3/2.9)
Piping Connection:
Rc 1/4 or 1/4 NPT
Power Supply:
24V DC (from ZR202G)
Power consumption:
Approx.1.3 W
Reference Gas Pressure: Sample gas pressure plus Approx. 150 kPa (690 kPa max.), (Pressure at
inlet of automatic calibration unit)
Air Consumption:
Approx. 1.5 l/min
Weight:
Approx. 2 kg
Ambient Temperature: -20 to +55°C, no condensing and freezing
Ambient Humidity:
0 to 95% RH
Storage Temperature: -30 to +65°C
• Model and Codes
Model
Suffix code
Option code
Description
ZR20H
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - Automatic calibration unit for ZR202G *1
Gas piping
connection
-R
-T
- - - - - - - - - - - -
- - - - - - - - - - - -
Rc 1/4
1/4 NPT
Reference gas *2
-E
-P
- - - - - - - - - - - -
- - - - - - - - - - - -
Instrument air
Pressure compensated
Mounting
-A
-B
- - - - - - - - - - - -
- - - - - - - - - - - -
Horizontal mounting
Vertical mounting
–
-A
- - - - - - - - - - - - Always -A
*1 Ask Yokogawa service station for additional mounting of ZR20H to the preinstalled ZR202G.
*2 Select the appropriate reference gas of ZR20H according to the one of ZR202G.