Every product series has unique features.
Especially TB series can be used for various applications such as small amount of oxygen in pure gases, vacuum atmosphere, and exhaust gas.
We will make unique products according to user's needs, for example, for Nitrogen PSA, for Oxygen PSA, for premixed gas, and for oxygen pump etc.
New
High concentration oxygen analyzer
OA-I series
Control unit C-58
These instruments should be combined with O2 sensor then control cell temperature and convert cell EMF to O2 value for display and signal output.
Portable oxygen analyzer EZY series
【Main application】
・Portable application
・Semiconductor application
・Reflow furnace
・Exhaust gas etc.
TB series
TB-ⅡG
【Main application】
・Boiler,
・Steel heating
・Incinerator furnace
・Glass fusion furnace
・Ceramic sintering
・furnace
・Waste heat plant
・All burning exhaust gases
TB-ⅡF
【Main application】
・Inert gas line for semiconductor
・Nitrogen re-flow furnace
・Nitrogen PSA
・Atmosphere furnace
・I.G.S., I.G.G. for tanker
・Steam
TB-ⅡV/TB-ⅡVN
Portable oxygen analyzer EZY series
【Main application】
・Portable application
・Semiconductor application
・Reflow furnace
・Exhaust gas etc.
Accessory
Aspirator block
【Main application】
・Metal industry each process
・Non-metal industry each process
・Ceramics furnace
・Incinerator furnace
・Other high temp. exhaust gas etc.
Guide probe
【Main application】
・Boiler
・Metal industry each process
・Non-metal industry each process
・Ceramics furnace
・Incinerator furnace
・Other high temp. exhaust gas
Control unit
Control unit C-28C C-48
These instruments should be combined with O2 sensor then control cell temperature and convert cell EMF to O2 value for display and signal output.
FG series
CG series
Oxygen analyzer for Nitrogen PSA CG-SM
Oxygen monitor
Fixed type OXYGEN MONITOR
Air-C Series
【Main application】
・ Laboratory, warehouse
・ Atmosphere using inert gas (N2, Ar etc.)
・ Underground pit
Others
DG-R series
This model of oxygen analyzer can be installed to the furnace directly and to measure atmosphere at high temperature and high humidity.
There are 2 types, fixed type and portable type.
It is suitable for open-heat-type-continuous-heating-furnace and
reduction-atmosphere-furnace.
DG-IR (Portable type)
This portable type sensor can measure continuously for a long term.
The detector and display meter can be separated even it is built-in type in time of transportation. Therefore you can install the sensor near the furnace and control unit in the place where it is easy to operate.
The attached air aspirator absorbs the sample gas.
DG-ⅡNDR(Direct sampling)
This model is installed on the ceiling of furnace directly by mounting flange.
Sampling equipments are not necessary for detecting because it circulates and measures the gas in the furnace by heat convection directly.
It is suitable for open-heat-type-heating-furnace.
DG-ⅡNR(Sampling)
It is usable when it is hard to install it to the furnace directly, and you would like to measure the oxygen concentration at a selecting point from several points. It is suitable for low dew point gas and have a good reputation for management use of the DX and RX gas generator.
PO series
Sampling equipments are not necessary for this model because the detector is inserted in the furnace directly.
Oxygen analyzer is operated using the temperature in the furnace and measure oxygen partial pressure.
Oxygen analyzer is operated using the temperature in the furnace and measure oxygen partial pressure.
CM series
This model burns the mixed gas of flammable gas and air continuously in the combustion space. And it measures oxygen partial pressure in the combustion product and estimates deficiency and excess of oxygen in the fuel gas or furnace. There are 2 types, Fixed type and portable type.
When Zirconia ceramics is heated, it becomes an electrolyte and the oxygen ions can move through the cell. If there are two different gases inside and outside, a voltage is produced between both sides. Sensing cell inside contacts the air as reference gas and the outside contacts the sample gas. Then it produces voltage which corresponds to oxygen density. The cell voltage (Cell EMF) is also related to cell temperature.
When there is air on both side of sensing cell, it theoretically produces no EMF. The lower oxygen density of sample gas is , the bigger EMF is.
- Reduction atmosphere is used for a heat-treatment process or a ceramic baking of
the metal. TB sensor can manage the oxidation and the reduction atmosphere by
measuring oxygen partial pressure which dissociates from [H2+1/2O2⇔H2O, CO+1/2O2⇔CO2]
*[DG-R series] is suitable for accurate measurement of reduction atmosphere. 
- This sensor measures the partial pressure of oxygen. Therefore, if pressure changes with the gas of the same oxygen concentration, it produces the proper Cell voltage. For example, when the pressure is reduced to 1 Torr, oxygen density of air (206,000ppmO2) is shown as 270ppm.
(206,000×1/760=about 270)
TB-ⅡF can be used in the 10-3 Torr atmosphere. TB-ⅡV can be used in the 10-5 Torr. 
- In direct firing atmospheric furnace (CO+H2)% can be measured by measuring dissociated pO2 from
[CO+H2/CO2+H2O] equilibrium condition.
1%(CO+H2)+1/2%O2⇔1%(CO2+H2O), so 1%(CO+H2) corresponds to –1/2%O2.
Control unit C-28C have ±O2%.(Option) around 0% for Equivalent combustion.
If you require, please contact us.
When Zirconia disc is heated, and the voltage is applied at Pt electrode,
electric current occurs by oxygen pumping action. And oxygen in the cap is
discharged, so that oxygen partial pressure of cap inside is different from outside.
Voltage-current characteristic have a certain limit current in response to of oxygen
as shown Fig 2.
We can see the concentration of sample's oxygen by measuring the current.
- ZIP:659-0026
13-22 Nishikura-cho Ashiya-city Hyogo-pref.
Daiichinekken Co., Ltd.
TEL：0797-31-2410
FAX：0797-31-8951 - To official site
- About our Zirconia oxygen analyzer
- We, Daiichinekken, have developed and improved our products to meet your expectations.
Our products are now being used for various applications. Our products have reliability and can be maintained easily.
We believe we have contributed to customer’s satisfactions.
Copyright © Daiichi Nekken CO.,Ltd All Rights Reserved.
