Model ZR22G, ZR402G, and ZR202G
Direct In Situ Zirconia Oxygen Analyzers
High Temperature Humidity Analyzers
GS 11M12A01-01E
Overview
This analyzer consists basically of a probe and a
converter that are used as both a Zirconia Oxygen
Analyzer and High Temperature Humidity Analyzer.
The probe is of direct insertion type, and the converter
uses a digital display.
Two types of analyzers are available: separate
type and integrated type. As its name implies, the
integrated type combines probe and converter.
Separate and integrated type Zirconia oxygen
analyzers need not use a sampling device, and allow
direct installation of the probe in the wall of a fl ue
or furnace to measure the concentration of oxygen
in the stack gas. The converter displays the cell
temperature and cell emf in addition to the oxygen
concentration.
This analyzer is most suitable for monitoring the
oxygen concentration of combustion gases in large
or small boilers, various industrial furnace and
combustion devices, or for the control of low-oxygen
combustion.
Separate type and integrated type Zirconia High
Temperature Humidity Analyzers are used to measure
the humidity of hot gases continuously in driers which
use an electrical heater or hot gas as the heat source.
They can also be used in a variety of manufacturing
applications in humidifi ers, as well as in driers, for
humidity measurement and control. They can help
improve productivity in these application fi elds.
• The built-in heater assembly of the probe can be
replaced on site, reducing maintenance costs.
• The probe uses a long-life, high-reliability Zirconia
sensor.
• The probe uses three-reference air supply methods
(natural air convection, instrument air, and pressure
compensated) in its applications.
• The separate type converter incorporates a LCD
touchscreen for ease of operation.
and
Features:
• This converter can be used as an oxygen analyzer as
well as a high temperature humidity analyzer.
• The integrated type integrates both probe and
converter, to reduce wiring, piping, and installation
costs. This type of unit uses an optical switch for
ease of operation at the site.
• Remote maintenance using digital communications
(HART) reduces maintenance costs. *1
*1: HART is a registered trademark of HART
Communication Foundation
ZR202G
EXA
ZR402G
4 to 20 mA DC signal line with
superimposed HART AC signal
Ao+
+
–
Ao-
ZR402G
Ao1+
Ao1-
HART
Communicator
Model 275
Yokogawa Electric Corporation
2-9-32, Nakacho, Musashino-shi, Tokyo, 180-8750 Japan
Tel.: 81-422-52-5617 Fax.: 81-422-52-6792
Relaying
terminals
HART
Communicator
Model 275
Terminal board
Control room
HART
Communicator
Model 275
Receiving instrume
load resistance:
250 Ω to 550 Ω
System configuration Example 1 of Separate type Analyzer
Automatic calibration system uses instrument air for reference gas.
For the calibration gas, a standard gas cylinder may be used for more accurate calibration.
Applications: Oxygen concentration monitoring and control in large boilers
(for private power generation and for business use) and in heating furnaces,
and the like.
Humidity monitoring and control in drying furnaces and humidifiers.
2
Model ZR22G Separate type Zirconia Oxygen/
High Temperature Humidity Analyzer, Detector
Signal
Check valve
Calibration gas
(6-core shield cable)
Heater (2-core)
Reference gas
Model ZR40H Auto Calibration unit
System confi guration - Integrated type
System configuration Example 1 of Integrated type Analyzer
For an integrated type as shown in the figure above.
Applications:
Oxygen concentration monitoring and control in large boilers
(for private power generation and for business use) and in
heating furnaces, and the like.
Humidity monitoring and control in drying furnaces and humidifiers
*2
Auto Calibration unit
ZR20H
Calibration gas (Zero)
Calibration gas pressure regulator
Note:
The installation temperature limits range for integrated type analyzer is -20 to 55°C.
Model ZR402G Converter
EXA
*2
*1
flowmeter
Reference gas
Span gas
ZR402G
100 to 240 V AC
~
Needle
valve
Model ZR202G Integrated type Zirconia Oxygen/
High Temperature Humidity Analyzer
with auto calibration (ZR202G-
100 to 240 V AC
~
*3
Air Set
Calibration gas pressure regulator
*3
Contact input
Analog output, contact output
Digital output (HART)
Air Set
Instrument air
Calibration gas
unit case
Zero gas cylinder
Contact input
Analog output, contact output
Digital output (HART)
Instrument air
Calibration gas
unit case
Zero gas cylinder
F03.ai
□□□-□-□
-A-□-□-□-□-A)
F05.ai
*1 Shield cable:
Use shielded signal cables, and connect the shields to the FG terminal of the converter.
*2 Select the desired probe from the Probe Confi guration table on page 4.
*3 When a zirconia oxygen analyzer is used, 100% N
System configuration Example 2 of Separate type Analyzer
Instrument air is used as the reference gas.
A standard gas cylinder can be used for the calibration gas for
more accurate calibration.
Application example:
Oxygen concentration monitoring and
control in large boilers (for private power generation and
for business use) and in heating furnaces.
Humidity monitoring and control in drying furnaces
and humidifiers.
Model ZR22G Separate type Zirconia Oxygen/
High Temperature Humidity Analyzer, Detector
Stop valve
or
Check valve
Calibration gas
*4 Calibration gas unit same as for zero gas.
Model ZA8F flow setting unit
flowmeter
Reference
gas
Calibration gas pressure regulator
Model ZR402G Converter
EXA
ZR402G
Needle
valve
Calibration gas
unit case
Air Set
100 to
~
240 V AC
Instrument air
Span gas (*4)
Zero gas
cylinder
F04.ai
System confi guration — Integrated type
System configuration Example 2 of Integrated type Analyzer
Instrument air is used as the reference gas. A standard gas
cylinder can be used for the calibration gas for more accurate
calibration.
Application example:
Oxygen concentration monitoring and
control in large boilers (for private power generation and for
business use) and in heating furnaces.
Humidity monitoring and control in drying furnaces and
humidifiers.
Model ZR202G Intgrated type Zirconia Oxygen /
High Temperature Humidity Analyzer
Stop valve
or
Check valve
Calibration gas
100 to 240 V AC
~
Model ZA8F flow setting unit
flowmeter
Reference
gas
Calibration gas pressure regulator
Calibration gas unit case
Needle
valve
Air Set
Instrument air
Span gas (*4)
Zero gas
cylinder
F04_01.ai
System configuration Example 3 of Separate type Analyzer
Instrument air is used as the reference gas. A portable
standard gas unit (ZO21S) is used for the calibration.
This unit is connected only when the calibration is made.
Application example:
Oxygen concentration monitoring and control in
packaged boilers
Humidity monitoring and control in drying furnaces
or a humidifiers
Model ZR22G Separate type Zirconia Oxygen
/ High Temperature Humidity Analyzer, Detector
Stop valve
Calibration gas
Model ZR402G Converter
EXA
ZR402G
~
Model ZO21S Standard gas unit
100/110/115
~
200/220/240 V AC
100 to
240 V AC
F02_01.ai
System configuration Example 3 of Integrated type Analyzer
Instrument air is used as the reference gas.
A portable standard gas unit (ZO21S) is used for
the calibration.
This unit is connected only when the calibration is made.
Application example:
Oxygen concentraion monitoring and control in
packaged boilers
Humidity monitoring and control in drying furnaces or
a humidifiers
Model ZR202G Intgrated type Zirconia Oxygen
Analyzer/ High Temperature Humidity Analyzer
Stop valve
Calibration gas
100 to 240 V AC
~
Model ZO21S Standard gas unit
100/110/115
~
200/220/240 V AC
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Note: The installation temperature limits range for integrated type
Model ZR22G Separate type Zirconia Oxygen Analyzers/ High Temperature Humidity Analyzers,Detector
1
Model ZR402G Separate type Zirconia Oxygen / High Temperature Humidity Analyzer, Converter(*1)
2
3
Model ZR202G Integrated type Zirconia Oxygen Analyzers/ High Temperature Humidity Analyzers
Model ZO21P Adapter for High Temperature Probe of separate type Zirconia Oxygen Analyzer
4
5
E7046EC, E7046EN Auxiliary Ejector for High Temperature Probe of separate type Oxygen Analyzer
6
Model ZO21R Probe Protector for Zirconia Oxygen Analyzers
7
K9471UA Filter for Oxygen Analyzer
K9471UC Dust Guard Protector
8
Model ZH21B Dust Protector for High Temperature Humidity Analyzers
9
10
Model ZO21S Standard Gas Unit
11
Model ZA8F Flow setting unit for manual calibration
12
Model ZR40H Automatic Calibration Unit for Separate type Analyzer
13
Model ZR20H Automatic Calibration Unit for Integrated type Analyzer (*2)
14
L9852CB, G7016XH Stop Valve for Calibration-gas line
15
K9292DN,K9292DS Check Valve for Calibration-gas line
G7003XF/K9473XK , G7004XF/K9473XG Air Set
16
G7001ZC Zero-gas Cylinder
17
18
G7013XF, G7014XF Pressure Regulator for Gas Cylinder
19
E7044KF Case Assembly for Calibration-gas Cylinder
ZR22A, ZR202A Heater Assembly for Spare Parts
20
: Items required for the above system example
: To be selected depending on each application. For details, refer to Chapter of Options.
( )
: Select either
(*1): When used as a high temperature humidity analyzer, specify /HS options.
(*2): When Auto Calibration of (-A) or (-B) code is speified , ZR20H is installed in ZR202G.
Separate type Integrated type
System config. System config.
Ex.1 Ex.2 Ex.3 Ex.1 Ex.2 Ex.3
( )
( )
( )
( )
T01.ai
4
Detector Components
Process gas temperature 0 to 700°CProcess gas temperature 0 to 1400˚C
Mounting
Horizontal
to
vertical
Vertical
Horizontal
to
vertical
Horizontal
to
vertical
Vertical
Insertion
length
0.4
to
2 m
2.5 m
or more
3 m
or less
0.4
to
2 m
2.5 m
or more
General-use Probe
Gas Flow
Sample inlet
Dust filter for
Oxygen Analyzer
(K9471UA)
or
Dust guard
protector
(K9471UC)
Probe Protector
(ZO21R)
Detector(ZR22G or
ZR202G)
+
Detector
(ZR22G or
ZR202G)
Detector
(ZR22G or
ZR202G)
ApplicationApplication
Boiler
Heating
furnace
For pulverized
coal boiler
with gas flow
velocity
10 m/s or more
Black liquid
recovery boiler
Cement
Kiln
High temperature detector
Sample
outlet
Absorption
structure
Probe protector
for high
temperature use
ZO21P-H
Sample inlet
Temperature:
Probe material SUS310S 800
Probe material SiC 1400
Mounting: Vertical downwards
Insertion length: 1.0 m, 1.5 m
When duct pressure is atmospheric
or negative, attach air ejector.
High temperature auxiliary
ejector (E7046EC, E7046EN)
Needle
valve
Inlet
High
temperature
detector
˚C
˚C
Pressure gauge
Ejector
assy.
Blow
Heating
furnace
F06.ai
Application Example:
Separate and integrated type Zirconia Oxygen Analyzers
• Large, medium and small boilers (boilers for power generation: heavy oil, gas or coal)
•
Various industrial furnaces (refi nery process/iron manufacture heating furnace, coal kiln, and black liquid recovery boilers)
For other applications, contact Yokogawa Electric Corporation.
• May not be applicable corrosive gas such as ammonia, chlorine is present-check with YOKOGAWA.
Measurement System: Zirconia system
Oxygen Concentration: 0.01 to 100 vol% O
Output Signal: 4 to 20 mA DC (maximum load
Measurement Range: Any setting in the range of 0 to
Digital Communication (HART): 250 to 550 ,
Note: HART is a registered trademark of the HART
Display Range: 0 to 100 vol% O
Warm-up Time: Approx. 20 min.
Repeatability: (Excluding the case where the
Linearity: (Excluding standard gas tolerance)
Drift: (Excluding the fi rst two weeks in use)
Response Time: Response of 90% within 5 seconds.
combustion exhaust gas and mixed gas
(excluding infl ammable gases). May
not be applicable corrosive gas such as
ammonia, chlorine is present-check with
YOKOGAWA.
2
resistance 550 )
5 through 0 to 100 vol% O
(in 1 vol% O2),
2
or partial range
depending on number of fi eld devices
connected to the loop (multi-drop mode).
Communication Foundation.
2
reference air is by natural convection)
± 0.5% Maximum value of set range. (less
than 0 to 25 vol% O
range)
2
± 1% Maximum value of set range.
(0 to 25 vol% O
100 vol% O
or more and up to 0 to
2
range)
2
(Excluding the case where the reference
air is by natural convection)
(Use oxygen of known concentration (with
in the measuring range) as the zero and
span calibration gases.)
± 1% Maximum value of set range.; less
than 0 to 25 vol% O
range
2
(Sample gas pressure: within ± 4.9 kPa)
± 3% Maximum value of set range.; 0 to
25 vol% O
vol% O
or more and less than 0 to 50
2
range
2
(Sample gas pressure: within ± 0.49 kPa)
± 5% Maximum value of set range.; 0 to
50 vol% O
vol% O
or more and up to 0 to 100
2
range
2
(Sample gas pressure: within ± 0.49 kPa)
(Excluding the case where the reference
air is by natural convection.)
Both zero and span ± 2% Maximum value
of set range/month
(Measured after gas is introduced from
calibration gas inlet and analog output
starts changing.)
1. ZR22G Separate type Zirconia Oxygen
Analyzer, Detector
Oxygen Analyzer
Sample Gas Temperature: 0 to 700°C (Probe only)
Sample Gas Pressure: - 5 to + 250 kPa (When the
Note: When the detector is used in conjunction with a
Probe Material: SUS 316 (JIS)
Ambient Temperature: -20 to +150°C
Reference Air System: Natural Convection,
Instrument Air System (excluding Natural Convection):
Material in Contact with Gas: SUS 316 (JIS),
Construction: Heater and thermocouple replaceable
Terminal Box Case: Material; Aluminium alloy
Terminal Box Paint Color: Case; Mint green (Munsell
Finish: Polyurethane corrosion-resistance coating
Gas Connection:Rc 1/4 or 1/4 FNPT
Wiring Connection: G1/2, Pg13.5, M20 by 1.5 mm,
Installation: Flange mounting
Probe Mounting Angle:
When the probe insertion length is 2.5 or
It is necessary to mount the cell using
Inconel cell-bolts when the temperature is
greater than 600°C.
700 to 1400°C (with High Temperature
Probe Adapter)
For high-temperature sample gas,
apply 0.15 m length probe and High
Temperature Probe Adapter ZO21P-H.
pressure in the furnace exceeds 3 kPa,
it is recommended that you compensate
the pressure. When the pressure in
the furnace exceeds 5 kPa, you must
perform pressure compensation.) . For
0.15 m probe, 0.5 to 5 kPa. No pressure
fl uctuation in the furnace should be
allowed.
check valve and a ZA8F Flow Setting Unit, the
maximum pressure of sample gas is 150 kPa.
When with a check valve and a ZR40H Auto
Calibration Unit, it is 200 kPa. If the pressure of
your sample gas exceeds these limits, consult
with Yokogawa.
3.6, 4.2, 4.8, 5.4 m
Instrument Air, pressure compensated
(other than for probe length 0.15 m)
Pressure; 200 kPa + the pressure inside
the furnace (It is recommended to use
air which has been dehumidifi ed by
cooling to dew point -20°C or less, and
dust or oil mist removed.)
Consumption; Approx. 1 Nl/min
construction. Non explosion-proof JIS
C0920 / equivalent to IP44D. Equivalent
to NEMA 4X/IP66 (Achieved when the
cable entry is completely sealed with a
cable gland in the recirculationpressure
compensated version.)
5.6BG3.3/2.9)
Cover; Mint green (Munsell 5.6BG3.3/2.9)
1/2 NPT
When the probe insertion length is
2 m or less, installing at angles from
horizontal to vertical downward is
possible.
±5°), and if installing at angles from
horizontal to verticalIy downward (within
±5°), use a probe protector.
Weight:
Insertion length of 0.4 m:approx. 6 kg (JIS 5K 65) /
approx. 11 kg (ANSI 150 4)
Insertion length of 1.0 m:approx. 8 kg (JIS 5K 65) /
approx. 13 kg (ANSI 150 4)
Insertion length of 1.5 m:approx. 10 kg (JIS 5K 65) /
approx. 15 kg (ANSI 150 4)
Insertion length of 2.0 m:approx. 12 kg (JIS 5K 65) /
approx. 17 kg (ANSI 150 4)
Insertion length of 3.0 m:approx. 15 kg (JIS 5K 65) /
approx. 20 kg (ANSI 150 4)
Insertion length of 3.6 m:approx. 17 kg (JIS 5K 65) /
approx. 22 kg (ANSI 150 4)
Insertion length of 4.2 m:approx. 19 kg (JIS 5K 65) /
approx. 24 kg (ANSI 150 4)
Insertion length of 4.8 m:approx. 21 kg (JIS 5K 65) /
approx. 26 kg (ANSI 150 4)
Insertion length of 5.4 m:approx. 23 kg (JIS 5K 65) /
approx. 28 kg (ANSI 150 4)
2. ZR402G Separate type Zirconia Oxygen
Analyzer, Converter
Oxygen Analyzer
Operated using an LCD touchscreen on the converter.
Display: LCD display of size 320 by 240 dot with
Output Signal: 4 to 20 mA DC, two points (maximum
Contact Output Signal: four points (one is fail-safe,
Contact Input: two points
Auto-calibration Output: Two points (for dedicated
Ambient Temperature: -20 to +55°C
Storage Temperature: -30 to +70°C
Humidity Range: 0 to 95% RH (non-condensing)
Installation Altitude: 2000 m or less
Category based on IEC 1010: II (Note)
Pollution degree based on IEC 1010: 2 (Note)
Note: Installation category, called over-voltage
Power Supply Voltage: Ratings; 100 to 240 V AC
Power Supply Frequency: Ratings; 50/60 Hz
Power Consumption: Max. 300 W, approx. 100 W for
Safety and EMC conforming standards
Safety: Conforms to EN 61010-1: 1993
EMC: Conforms to EN 61326: 1998
KC mark: KCC-REM-YHQ-EEN103-1-R1
Maximum Distance between Probe and Converter:
touchscreen.
load resistance 550 )
normally open)
auto-calibration unit)
category, specifi es impulse
Category II is for
Pollution degree indicates the degree of existence
of solid, liquid, gas or other inclusions which may
reduce dielectric strength. Degree 2 is the normal
indoor environment.
electrical equipment.
withstand voltage.
Acceptable range; 85 to 264 V AC
Acceptable range; 45 to 66 Hz
ordinary use.
CSA C22.2 No.1010-1 certifi ed
UL 3111-1 certifi ed
Conductor two-way resistance must be
10 or less (when a 1.25 mm
2
cable or
equivalent is used, 300 m or less.
Construction: Outdoor installation, equivalent to
NEMA 4X/IP66 (with conduit holes
completely sealed with a cable gland)
air ratio, moisture quantity (in hot gases)
(vol% H
O)
2
Display Items: Cell temperature (°C), thermocouple
reference junction temperature (°C),
maximum/minimum/average oxygen
concentration (vol% O
), cell e.m.f. (mV),
2
cell internal resistance (), cell condition
(in four grades), heater on-time rate
(%), calibration record (ten times), time
(year/month/day, hour/minute)
Calibration Setting Items: Span gas concentration
(vol% O
(vol% O
), zero-gas concentration
2
), calibration mode (auto,
2
semi-auto, manual), calibration type
and method (zero-span calibration, zero
calibration only, span calibration only),
stabilization time (min.sec), calibration
time (min.sec), calibration period (day/
hour), starting time (year/month/day,
hour/minute)
Equipment Related Items: Measuring gas selection
Output Related Items: Analog output/output mode
selection, output conditions when
warmingup/ maintenance/calibrating
(during blowback)/abnormal, 4 mA/20
mA point oxygen concentration (vol%
O
), time constant,preset values when
2
warming-up/ maintenance/calibrating
during blowback abnormal, output
preset values on abnormal
Alarm Related Items: Oxygen concentration high-
alarm/ high-high alarm limit values (vol%
O
), Oxygen concentration low-alarm/
2
low-low alarm limit values (vol% O
),
2
Oxygen concentration alarm hysteresis
(vol% O
), Oxygen concentration alarm
2
detection, alarm delay (seconds)
Contact Related Items: Selection of contact input 1
and 2, selection of contact output 1 to 4
(abnormal, high-high alarm, high-alarm,
low-alarm, low-low alarm, maintenance,
calibrating, range switching, warming-
up, calibration-gas pressure decrease,
temperature high-alarm, blowback,
fl ameout gas detection)
Converter Output:
Two points mA analog output (4 to
20 mA DC (maximum load resistance of 550
)) and one mA digital output point (HART)
(minimum load resistance of 250 ).
Range: any setting between 0 to 5 through 0
to 100 vol% O
in 1 vol% O2, or partial
2
range is available (Maximum range
value/minimum range value 1.3 or more)
For the log output, the minimum range
value is fi xed at 0.1 vol% O
.
2
4 to 20 mA DC linear or log can be
selected.
Input/output isolation
Output damping: 0 to 255 seconds. Hold/non-hold
selection, preset value setting possible
with hold
Contact Output: Four points, contact capacity 30 V
DC 3 A, 250 V AC 3 A (resistive load)
Three of the output points can be selected
to either normally energized or normally
deenergized status.
Delayed functions (0 to 255 seconds)
and hysteresis function (0 to 9.9 vol%O
2
can be added to high/low alarms.
The following functions are programmable
for contact outputs.
(1) Abnormal, (2) High-high alarm, (3)
Highalarm, (4) Low-low alarm, (5) Lowalarm, (6) Maintenance, (7) Calibration,
(8) Range switching answer-back, (9)
Warm-up, (10) Calibration-gas pressure
decrease (answerback of contact
input), (11) Temperature high-alarm,
(12) Blowback start, (13) Flameout gas
detection (answerback of contact input),
(14) Calibration coeffi cient alarm, (15)
Startup power stabilization timeout alarm
Contact output 4 is set to normally
operated, fi xed error status.
Contact Input: Two points, contact input The following
functions are programmable for contact
inputs:
(1) Calibration-gas pressure decrease
alarm, (2) Range switching, (3) External
calibration start, (4) Process alarm (if this
signal is received, the heater power turns
off), (5) Blow-back start
Contact capacity: Off-state leakage current: 3 mA or
less
Self-diagnosis: Abnormal cell, abnormal cell
temperature (low/high), abnormal
calibration, defective A/ D converter,
defective digital circuit
Calibration:
Method; zero/span calibration
Calibration mode; automatic, semi-automatic and
manual (All are operated interactively
with an LCD touchscreen). Either zero
or span can be skipped.
Zero calibration-gas concentration setting range;
0.3 to 100 vol% O
(0.01 vol% O2 in
2
smallest units).
Span calibration-gas concentration setting range;
4.5 to 100 vol% O
(0.01 vol% O2 in
2
smallest units).
Use nitrogen-balanced mixed gas
containing 0 to10 % scale of oxygen,
and 80 to 100 % scale of oxygen for
standard zero-gas and standard spangas respectively.
3. ZR202G Integrated type Zirconia Oxygen
Analyzer
Oxygen Analyzer
Display: 6-digit LCD
Switch: Three optical switches
Output Signal: 4 to 20 mA DC, one point (maximum
load resistance 550 )
Digital Communication (HART): 250 to 550 ,
depending on quantity of fi eld devices
connected to the loop (multi-drop mode).
Note: HART is a registered trademark of the HART
Communication Foundation.
Contact Output Signal: Two points (one is fail-safe,
normally open)
Contact Input Signal: Two points
Sample Gas Temperature: 0 to 700°C
It is necessary to mount the cell using
Inconel cell-bolts when the temperature
measures more than 600°C.
High-temperature service - greater than
700°C - is not available.
Sample Gas Pressure: - 5 to + 250 kPa (When the
pressure in the furnace exceeds 3 kPa,
it is recommended that you compensate
the pressure. When the pressure in the
furnace exceeds 5 kPa, you must perform
pressure compensation.)
No pressure fl uctuation in the furnace
should be allowed.
Note: When the detector is used in conjunction with a
check valve and a ZA8F Flow Setting Unit, the
maximum pressure of sample gas is 150 kPa.
When with a check valve and a ZR40H Auto
Calibration Unit, it is 200 kPa. If the pressure of
your sample gas exceeds these limits, consult
with Yokogawa.
Probe Length: 0.4, 0.7, 1.0, 1.5, 2.0, 2.5, 3.0 m
Probe Material: SUS 316 (JIS)
Ambient Temperature: -20 to +55°C (- 5 to +70°C on
the case surface)
Storage Temperature: -30 to +70°C
Humidity Range: 0 to 95 %RH (non-condensing)
Installation Altitude: 2000 m or less
Category based on IEC 1010: II (Note)
Pollution degree based on IEC 1010: 2 (Note)
Note: Installation category, called over-voltage category,
specifi es impulse withstand voltage.
Category II is for electrical equipment.
Pollution degree indicates the degree of existence
of solid, liquid, gas or other inclusions which may
reduce dielectric strength. Degree 2 is the normal
indoor environment.
Power Supply Voltage: Ratings; 100 to 240 V AC
Acceptable range; 85 to 264 V AC
Power Supply Frequency: Ratings; 50/60 Hz
Acceptable range; 45 to 66 Hz
Power Consumption: Max. 300 W, approx. 100 W for
ordinary use.
Safety and EMC conforming standards
Safety: Conforms to EN 61010-1: 1993
CSA C22.2 No.1010-1 certifi ed
UL 3111-1 certifi ed
EMC: Conforms to EN 61326: 1998
KC mark: KCC-REM-YHQ-EEN103-2-R1
Reference Air System: Natural Convection,
Instrument Air, or Pressure Compensated
Instrument Air System (excluding Natural Convection):
Pressure; 200 kPa + the pressure inside
the furnace (It is recommended to use air
which is dehumidifi ed to dew point -20°C
or less, and dust or oil mist are removed.)
Consumption; Approx. 1 Nl/min
construction. Non explosion-proof JIS
C0920 / equivalent to IP44D. Equivalent
to NEMA 4X/IP66 (Achieved when the
cable entry is completely sealed with a
cable gland in the recirculationpressure
compensated version.)
Gas Connection:Rc 1/4 or 1/4 FNPT
Wiring Connection: G1/2, Pg13.5, M20 by 1.5mm, 1/2
NPT select one type (4 pieces)
Installation: Flange mounting
Probe Mounting Angle:
Horizontal to vertically downward.
When the probe insertion length is 2 m or
less, installing at angles from horizontal to
vertical downward is available.
When the probe insertion length is 2.5 m
more, mount vertically downward (within
± 5), and if installing at angles from
horizontal to vertically downward (within
± 5), use a probe protector.
When the probe insertion length exceeds
2.5 m, mount vertically downward (within
± 5) and use a probe protector.
Case: Aluminum alloy
Paint Color:Cover; Mint green (Munsell 5.6BG3.3/2.9)
Case: Mint green (Munsell 5.6BG3.3/2.9)
Finish: Polyurethane corrosion-resistance coating
Weight:
Insertion length of 0.4 m:approx. 8 kg (JIS 5K 65) /
approx. 13 kg (ANSI 150 4)
Insertion length of 1.0 m:approx. 10 kg (JIS 5K 65) /
approx. 15 kg (ANSI 150 4)
Insertion length of 1.5 m:approx. 12 kg (JIS 5K 65) /
approx. 17 kg (ANSI 150 4)
Insertion length of 2.0 m:approx. 14 kg (JIS 5K 65) /
approx. 19 kg (ANSI 150 4)
Insertion length of 3.0 m:approx. 17 kg (JIS 5K 65) /
approx. 22 kg (ANSI 150 4)
Functions
Display Function: Displays values of the measured
Alarm, Error Display: Displays alarms such as “AL-
Calibration Functions:
Auto-calibration; Requires the Auto-calibration Unit.
Semi-auto Calibration; Requires the Auto-calibration
Manual Calibration; Calibration with opening/closing
oxygen concentration, etc.
06” or errors such as “Err -01” when any
such status occurs.
It calibrates automatically at specifi ed
intervals.
Unit. Input calibration start signal
by optical switch or contact, then it
calibrates automatically afterwards.
the valve of calibration gas in operation
interactively with the optical switch.
Can operate updated data settings in
daily operation and checking. Display data
settings, calibration data settings, test
settings (current output loop check, input/
output contact check).
Setup Functions:
Initial settings suit for the plant conditions
when installing the converter. Current
output data settings, alarm data settings,
contact data settings, other settings.
Display and setting content:
Display Related Items: Oxygen concentration
(vol% O
), Output current value (mA),
2
air ratio, moisture quantity (in hot
gases) (vol% H
O), Cell temperature
2
(°C ), thermocouple reference junction
temperature (°C ), maximum/minimum/
average oxygen concentration (vol%
O
), cell e.m.f. (mV), cell internal
2
resistance (), cell condition (in four
grades), heater on-time rate (%),
calibration record (ten times), time
(year/month/day/hour/minute)
Calibration Setting Items: Span gas concentration
(vol% O
(vol% O
), zero-gas concentration
2
), calibration mode (auto,
2
semiauto, manual), calibration type
and method (zero-span calibration,
zero calibration only, span calibration
only), stabilization time (min.sec),
calibration time (min.sec), calibration
period (day/hour), starting time
(year/month/day/hour/minute)
Output Related Items: Analog output/output mode
selection, output conditions when
warming- up/maintenance/calibrating/
abnormal, 4 mA/20 mA point oxygen
concentration (vol% O
), time constant,
2
preset values when warming-up/
maintenance/calibrating/ abnormal,
output preset values on abnormal
Alarm Related Items: Oxygen concentration
highalarm/ high-high alarm limit values
(vol% O
), Oxygen concentration
2
lowalarm/ low-low alarm limit values
(vol% O
alarm hysteresis (vol% O
1 and 2, selection of contact output
1 and 2 (abnormal, high-high alarm,
high-alarm, low-alarm, low-low alarm,
maintenance, calibrating, range
switching, warming-up, calibrationgas pressure decrease, fl ameout gas
detection (answerback of contact input)
Converter Output: One mA analog output point (4
to 20 mA DC (maximum load resistance
of 550 )) with mA digital output point
(HART) (minimum load resistance of 250
).
Range: any setting between 0 to 5 through 0 to
100 vol% O
in 1 vol% O2, and partial
2
range is available (Maximum range
value/ minimum range value 1.3 or
more)
For the log output, the minimum range
value is fi xed at 0.1 vol% O
2
.
4 to 20 mA DC linear or log can be
selected. Input/output isolation
Output damping: 0 to 255 seconds.
Hold/non-hold selection, preset value
setting possible with hold.
Contact Output: Two points, contact capacity 30 V
DC 3 A, 250 V AC 3 A (resistive load)
One of the output points can be selected
to ether normally energized or normally
deenergized status.
Delayed functions (0 to 255 seconds)
and hysteresis function (0 to 9.9 vol% O
can be added to high/low-alarms.
The following functions are programmable
for contact outputs.
(1) Abnormal, (2) High-high alarm,
(3) High-alarm, (4) Low-low alarm,
(5) Lowalarm, (6) Maintenance,
(7) Calibration, (8) Range switching
answer-back, (9) Warmup,
(10) Calibration-gas pressure decrease
(answerback of contact input),
(11) Flameout gas detection (answerback
of contact input).
Contact Input: Two points, voltage-free contacts
The following functions are programmable
for contact inputs:
(1) Calibration-gas pressure decrease
alarm, (2) Range switching (switched
range is fi xed), (3) External calibration
start, (4) Process alarm (if this signal is
received, the heater power turns off)
Self-diagnosis: Abnormal cell, abnormal cell
temperature (low/high), abnormal
calibration, A/D converter abnormal,
digital circuit abnormal
Calibration:
Method; zero/span calibration
Calibration mode; automatic, semiautomatic and
manual (All are operated using optical
switches). Either zero or span can be
skipped.
Zero-calibration gas concentration setting range;
0.3 to 100 vol% O
(in 0.01 vol% O2).
2
Span-calibration gas concentration setting range;
4.5 to 100 vol% O
(in 0.01 vol% O2).
2
Use nitrogen-balanced mixed gas
containing 0 to10 % scale of oxygen
for standard zero-gas, and 80 to 100 %
scale of oxygen for standard span-gas.
Separate/Integrated type Zirconia High Temperature
Humidity Analyzer
• Coloring processes in the textile industry
• Steam curing processes for concrete products
• Manufacturing processes in the cigarette, food, paper
or pulp industries
• Drying processes in various manufacturing of building
materials, lumber, plasterboard, food or the like
• Humidifying processes in various manufacturing of
food or the like
Please contact us for other applications.
General Specifi cations
High Temperature Humidity Analyzer
Oxygen concentration in mixed gas which consists of
water vapor and air is proportional to the volumetric
ratio of oxygen in the air, so the volumetric ratio
of water vapor can be calculated from the oxygen
concentration.
Measurement output: Water vapor (in vol%) in mixed
Measurement System: Zirconia system
Measurement Range: 0.01 to 100 vol% O
Output Signal: 4 to 20 mA DC (maximum load
Digital Communication (HART): 250 to 550 ,
Note: HART is a registered trademark of the HART
Display Range: Oxygen concentration 0 to100 vol%
Note: These values are affected by temperature and
Warm-up Time: Approx. 20 min.
These characteristics are calculated by oxygen
Repeatability: (see Note1) ± 1 vol% H
Linearity: (Excluding standard gas tolerance)
± 2 vol% H
± 3 vol% H
Drift: (Excluding the fi rst two weeks in use)
gases (air and water vapor)
,0 to 100
vol% H
O or 0 to 1.000 kg/kg
2
2
resistance 550 )
Oxygen concentration; Any setting in the
range of 0 to 5 through 0 to 100 vol% O
(in 1 vol% O
), or partial range. Moisture
2
quantity; 0 to 25 through 0 to 100 vol%
H
O (in 1 vol% H2O), or partial range.
2
Mixture ratio 0 to 0.2 through 0 to 1.000
kg/ kg (in 0.001 kg/kg), or partial range.
depending on quantity of fi eld devices
connected to the loop (multi-drop mode).
Communication Foundation.
O
, Moisture quantity 0 to 100 vol% H2O
2
Mixture ratio 0 to 1 kg/kg
Relative humidity 0 to 100% RH (Note)
Dew point -40 to 370°C (Note)
absolute pressure, So accurate temperature and
pressure values must be inputted to the converter.
concentration measured in air which
include water vapor.
O (sample gas pressure 2 kPa
2
or less)
(see Note1), (Use oxygen of known
concentration (in the measuring range) as
the zero and span calibration gas.)
O; (Sample gas pressure:
2
within ± 0.49 kPa)
O; (Sample gas pressure:
2
2 kPa or less)
2
(see Note1)
both zero and span ± 3 vol% H
O/month
2
Response Time: Response of 90% within 5 seconds.
(Measures after gas is introduced from
calibration-gas inlet and analog output
start changing.)
(Note1) These tolerances do not apply to the pressure
compensated version, or where natural convection
is used for the reference air.
1. ZR22G Separate type Zirconia High
Temperature Humidity Analyzer,Detector
High Temperature Humidity Analyzer
Sample Gas Temperature: 0 to 700°C (Probe only)
Sample Gas Pressure: - 5 to + 20 kPa (When the
Probe Length: 0.4, 0.7, 1.0, 1.5, 2.0, 2.5, 3.0 m
Probe Material: SUS 316 (JIS)
Ambient Temperature: -20 to +150°C
Reference Air System: Natural Convection,
Instrument Air System (excluding Natural
Material in Contact with Gas: SUS 316 (JIS),
Construction: Heater and thermocouple replaceable
Terminal Box Case: Material; Aluminium alloy
Terminal Box Paint Color: Case; Mint green (Munsell
Gas Connection: Rc 1/4 or 1/4 FNPT
Wiring Connection: G1/2, Pg13.5, M20 by 1.5mm, 1/2
Installation: Flange mounting
Probe Mounting Angle: Horizontal to vertically
Weight:
Insertion length of 0.4 m: approx. 6 kg (JIS 5K 65) /
It is recommended to mount the cell using
Inconel cell-bolts when the temperature
measures more than 600°C.
pressure in the process exceeds 3 kPa,
it is recommended that you compensate
the pressure. When the pressure in the
process exceeds 5 kPa, you must perform
pressure compensation.)
No pressure fl uctuation in the process
should be allowed.
Instrument Air,or pressure compensated
Convection): Pressure; 200 kPa +
the pressure inside the furnace, (It
is recommended to use air which is
dehumidifi ed to dew point - 20°C or
less, and dust or oil mist are removed.)
Consumption; Approx. 1 Nl/min
construction. Non explosion-proof JIS
C0920 / equivalent to IP44D. Equivalent
to NEMA 4X/IP66 (Achieved when the
cable entry is completely sealed with a
cable gland in the recirculationpressure
compensated version.)
5.6BG3.3/2.9)
Cover; Mint green (Munsell 5.6BG3.3/2.9)
NPT
downward. When the probe insertion
length is 2 m or less, installing at angles
from horizontal to vertically downward is
available.
When the probe insertion length exceeds
2.5 m, mount vertically downward (within
± 5°) and use a probe protector.
Insertion length of 1.0 m: approx. 8 kg (JIS 5K 65) /
approx. 13 kg (ANSI 150 4)
Insertion length of 1.5 m: approx. 10 kg (JIS 5K 65) /
approx. 15 kg (ANSI 150 4)
Insertion length of 2.0 m: approx. 12 kg (JIS 5K 65) /
approx. 17 kg (ANSI 150 4)
Insertion length of 3.0 m: approx. 15 kg (JIS 5K 65) /
approx. 20 kg (ANSI 150 4)
2. ZR402G Separate type Zirconia High
Temperature Humidity Analyzer, Converter
High Temperature Humidity Analyzer
Operated using an LCD touchscreen on the converter.
Display: LCD display of size 320 by 240 dot with
Output Signal: 4 to 20 mA DC, two points (maximum
Contact Output Signal: four points (one is fail-safe,
Contact Input: two points
Analog Input: one point (thermal input 4-20 mA)
Auto-calibration Output: Two points (for dedicated
Ambient Temperature: -20 to +55°C
Storage Temperature: -30 to +70°C
Ambient Humidity : 0 to 95 %RH (non-condensing)
Installation Altitude: 2000 m or less
Category based on IEC 1010: II (Note)
Pollution degree based on IEC 1010: 2 (Note)
Note: Installation category, called over-voltage category,
Power Supply Voltage: Ratings; 100 to 240 V AC
Acceptable range; 85 to 264 V AC
Power Supply Frequency: Ratings; 50/60 Hz
Acceptable range; 45 to 66 Hz
Power Consumption: Max. 300 W, approx. 100 W for
Safety and EMC conforming standards
Safety: Conforms to EN 61010-1: 1993
EMC: Conforms to EN 61326: 1998
Maximum Distance between Probe and Converter:
Construction: Outdoor installation, NEMA 4X/IP66 or
Wiring Connection: G1/2, Pg13.5, M20 by 1.5mm, 1/2
Finish: Polyurethane corrosion-resistance coating
Weight: Approx. 6 kg
touchscreen.
load resistance 550 )
normally open)
autocalibration unit)
specifi es impulse withstand voltage. Category
II is for electrical equipment. Pollution degree
indicates the degree of existence of solid, liquid,
gas or other inclusions which may reduce
dielectric strength. Degree 2 is the normal indoor
environment.
ordinary use.
CSA C22.2 No.1010-1 certifi ed
UL 3111-1 certifi ed
Conductor two-way resistance must be
10 or less (when a 1.25 mm
2
cable or
equivalent is used, 300 m or less.)
equivalent (with conduit holes completely
sealed with a plastic cable gland optional)
NPT (with plug)
Case; Silver gray (Munsell 3.2PB7.4/1.2)
Functions
Display Functions:
Value Display; Displays values of the measured
Graph Display; Displays trends of measured
Data Display; Displays various useful data for
Status Message; Indicates an alarm or error
Alarm, Error Display: Displays alarms such as
Calibration Functions:
Auto-Calibration; Requires the Auto-calibration Unit.
Semi-auto Calibration; Requires the Auto-calibration
Manual Calibration; Calibration with opening/closing
Blowback Function:
Maintenance Functions:
Setup Functions:
Self-diagnosis:
Password Functions:
Display and setting content:
Measuring Related items: Oxygen concentration
Display Related Items: Oxygen concentration (vol%
Oxygen concentration, moisture
quantity,mixture ratio etc
oxygen concentration moisture quantity,
mixture ratio etc.
maintenance, such as cell temperature,
reference junction temperature,
maximum/ minimum moisture quantity,
or the like.
occurrence by fl ashing of the
corresponding icon.
Indicates status such as warming-up,
calibrating, or the like by the marks.
“Abnormal moisture quantity” or errors
such as “Abnormal cell e.m.f.” when any
such status occurs.
It calibrates automatically at specifi ed
intervals.
Unit. Input calibration direction on the
touchscreen or contact, then it calibrates
automatically afterwards.
the valve of calibration gas in operation
interactively with an LCD touchscreen.
Output through the contact in the
set period and time. Auto/semi-auto
selectable.
Can operate updated data settings in
daily operation and checking. Display
data settings, calibration data settings,
blowback data settings, current output
loop check, input/output contact check.
Initial settings suit for the plant conditions
when installing the converter. Equipment
settings, current output data settings,
alarm data settings, contact data settings,
other settings.
This function diagnoses conditions of the
converter or the probe and indicates when
any abnormal condition occurs.
Enter your password to operate the
analyzer excepting data display. Individual
passwords can be set for maintenance
and setup.
(vol% O
), moisture quantity (vol% H2O),
2
mixture ratio (kg/kg), relative humidity
(%RH) and dew point (°C)