YOKOGAWA EXAxt ZR22G, User Manual, Page: 28 / 211

<2. Specifications>
2-9
IM 11M12A01-02E 16th Edition : Mar. 19, 2020-00
2.2.3 ZH21B Dust Protector
This protector is designed to protect the probe output from dust agitation (i.e., to prevent
combustible materials from entering the probe cell where humidity measurements are made) in a
dusty environment.
Insertion length:
0.428m
Flange: JIS 5K 80 FF or ANSI Class 150 4 FF (However, flange thickness is
different)
Material: SUS 316(JIS), SUS304 (JIS) or ASTM grade 304 (flange)
Weight: Approximately 6kg (JIS), approximately 8.5kg (ANSI)
Mounting: Mounted on the probe or process flange with bolts and associated nuts
and washers.
l
Model and Codes
Model Suffix code
Option
code
Description
ZH21B - - - - - - - - - - - - - - - - - - - Dust Protector (0 to 600 °C)
Insertion length -40 - - - - - - 0.428 m
Flange ( *1) -J
-A
- - - - - -
- - - - - -
JIS 5K 80 FF (*1)
ANSI Class 150 4B FF (*2)
Style code *B - - - - - - Style B
Note: The flange thickness varies.
*1: Specify the probe ZR22G-040-□-K
*2: Specify the probe ZR22G-040-□-C
ZH21B.ai
t
C
C
øB
øB
øA
øB
D
ø72
ø76.3
428 (Insertion length)
Install facing upwards
JIS flange
ANSI flange
Unit: mm
Flange A B C t D
JIS 5K 80 FF 180 145 4 - Ø19 12 40
ANSI Class 150 4B FF 228.6 190.5 8 - Ø19 12 50