Instruction manual
INTRODUCTION SM425 INSTRUCTION MANUAL
INTRODUCTION
The SM425 Separate type Zirconia Oxygen Analyzer has been developed for combustion control in
various industrial processes. This analyzer consists of a detector and a converter. You can select among
several versions, based on your application.
Optional accessories are also available to improve measurement accuracy and automate calibration. An
optimal control system can be realized by adding appropriate options.
This instruction manual refers to almost all of the equipment related to the SM425. You may skip any
section(s) on the equipment which is not included in your system.
Regarding the HART communication protocol, refer to M11M12A01-51E.
<Before using the equipment, please read any descriptions in this manual related to the equipment and
system that you have, on appropriate use and operation of the SM425.>
Models and descriptions in this manual are as follows:
Models and descriptions in this manual
Model Product Name
Description in this manual
Specificati
on
Installatio
n
Operatio
n
Maintenanc
e
CMPL
SM425P General-use detector
○ ○ ○ ○ ○
SM425P High-temperature detector (0.15m)
○ ○ ○ ○
SM425 Converter
○ ○ ○ ○ ○
ZO21R-L Probe protector
○ ○
ZO21P-H High-temperature probe adapter
○ ○
○
ZA8F
Flow setting unit (for manual calibration
use)
○ ○ ○
SM425CAL Automatic Calibration unit
○ ○ ○
○
-
Auxiliary ejector for high-temperature
use (Part No. E7046EC,EN)
○ ○
○
-
Calibration gas unit case (Part No.
E744KF)
○ ○
-
Check valve (Part No. K9292DN,
K929DS)
○ ○
-
Dust Filter for the detector (Part No.
96751017)
○ ○
-
Dust guard protector (Part No.
K947UC)
○ ○
ZO21S Standard gas unit
○
○ ○ ○
CMPL: Customer Maintenance Parts List
This manual consists of twelve sections. Please refer to the reference sections for installation, operation,
and maintenance.
42500001 REV A iii