Oxygen analyzers provide valuable measurements in combustion control, process quality, safety and environmental applications. These are used in a variety of measurement scenarios including, but not limited to, boiler trimming in power plants, furnace optimization in refinery and petrochemical applications, process safety in vent headers, and product quality in ethylene production.
Yokogawa offers a full range of product solutions including an industry leading zirconia oxygen probe series, as well as a line of cutting edge tunable diode laser spectrometers.
Yokogawa’s new TDLS8000 houses all of the industry’s leading features in one robust device. The platform design is for in situ measurements which negates the need for sample extraction and conditioning.
The ZR probe's in-situ measurement method does not require any process conditioning or extractive sampling. This reduces maintenance costs and allows faster measurement response to changes in the process.
The AV550G Multi Channel Oxygen Analyzer System allows for measurements on up to eight ZR22 probes simultaneously. The ZR probe's in-situ measurement method does not require any process conditioning or extractive sampling, reducing maintenance costs and resulting in faster measurement response to changes in the process.
The ZR202 transmitter/detector combines benefits of the ZR402 remote analyzer and the ZR22 detector into an intelligent, rebuildable, low-cost measurement device for in-situ humidity measurement.
The OX400 is a low level zirconia oxygen analyzer that is capable of measuring a wide range of concentrations, from 0-10 ppm up to 0-100 vol%O2.
The TDLS220 is specifically designed for accurate, reliable and low maintenance measurement of volume percent (vol%) oxygen (O2) for safety and process applications. It is a viable alternative to paramagnetic O2 analyzers.
Yokogawa's Zirconia oxygen detector systems offer a variety of calibration units for quick, easy control of calibration gases giving the user simple, accurate calibration.
WZ-H cables are compatible with all ZR22, ZR402, and AV550G model Oxygen Analyzer Systems. The purpose of these cables is to transmit the signal from the sensor/detector to the analyzer. Additionally, the cabling provides for electrical input to the heater assembly within the detector for cell temperature control.
The accumulation of fly ash on the zirconia cell affects its ability to measure oxygen concentration. Fly ash and its constituents can reduce the life of the zirconia cell and affect the cells response time to changes in gas concentration. Yokogawa's large surface area sintered metal filters are designed to keep particulate and ash off the measurement cell.
Use a 500Vdc Insulation Meter Checks (Aka: Megger). Be sure there are no wires attached to probe before doing this test.
If you have set a password and have forgotten it you can use the password "MOON" to get into the configuration menu. Then you will be able to modify/view the password that is set in the unit.
Note: if you have not set a password just hit enter on the screen and it will accept that as the password.
The password to get in all the maintenance and commissioning menus is 16
This is the Japanese GS sheet, containing a number of options we rarely sell here in the US. Contact Support at 800-524-7378 or email@example.com for price and delivery information.
Yokogawa has been making Zirconia Oxygen Analyzers for over 30 years. The older O2 probes and analyzers used a transistor temperature sensor. The newer units use a PT1000 RTD. We discontinued the ZO21D probe and both the AV8G and ZA8C analyzers over 15 years ago. To make it easier for our customers who still had the older ZA8C and AV8G analyzers we added an option to allow them to order the ZR22G probes with the old style sensors already installed. Some customers are still ordering ZR22 Probes with the /ZR or /AV option (see the photo to the right). In many cases they are actually using them on AV550s or ZR402Gs but they have the analyzers set to “ZO21D” mode so that they will work with the old cold junction sensors. They were purchasing probes with the old sensor because they still had some ZA8C Analyzers or AV8G Analyzers in operation along with some of the newer ZR402s and AV550s.
Now the old style Cold Junction sensors are no longer manufactured, and we have not been able to locate another supplier.
These customers need to replace any ZA8Cs or AV8Gs they still have with ZR402s or AV550s.
The new Cold Junction sensor is a PT1000 RTD. It is available as a spare part. The part number is K9470BG - Cold Junction (RTD) for ZR22.
We have a limited stock of the ZO21D style cold junction sensors. The part number is E7042AU-J1, and the list price is $250.00. We will continued to sell them but they will be gone in a short time. The few customers that still have ZA8Cs or AV8Gs can purchase the parts but they need to plan to change to the ZR402 or AV550.
Identifying the Cold Junction Sensors
The Cold Junction sensor may be a PT1000 RTD or a Transistor Cold Junction sensor.
There are two styles of RTD that have been used. Both are PT1000:
The newer units have a PT1000 sensor with a Red & Black wire
The older units have a PT1000 sensor with a Red & White wire.
The Transistor sensor is mounted on a small metal bracket with 2 wires connected to one terminal and 1 wire connected to the other one.
For the ZR402G or AV550 with a PT1000 sensor set the Detector Setting to ZR22G.
For the ZR402G or AV550 with a Transistor sensor set the Detector Setting to ZO21C.
You can use the password JAVAJAVA to get past the password screen. Make sure you go to the password menu change the password setting.
You can use code 58 to reset a single AV8C channel.
First scroll the display to the channel you would like to cycle, then enter code 58.
Here's a link to download the AV8G Manual.
The part number you see on the channel card circuit board is not the part number for the channel card. It is the part number for the circuit board before any parts are installed.
There are 2 versions on the channel card.
If you look at your channel card you will see there are either 1 or 2 blue "boxes" on it.
If you see 1 Blue box your channel card has common Isolation - the part number is AV55M-A1
If you see 2 Blue boxes your channel card has individual isolation - the part number is AV55M-B1
The AV550 automatically turns off the power to the channel card when it is removed. You have to either cycle power to the whole unit, or use the channel card power.
To get to the channel card power menu hit the Setup Key (wrench). See below:
Select Channel card power
Select the desired channel and enable.
The password to access the maintenance and commissioning area is 77
Combustion furnaces such as heating furnaces and boilers in plants include various sizes and types, and serve as energy sources, that is, they are cores in all production activities. Because a large amount of fuel such as gas or fuel oil is consumed in plants, their combustion efficiency directly affects the performance and running cost of the plants.
Yokogawa’s new TDLS8000 houses all of the industry’s leading features in one robust device. The platform design is for in situ measurements which negate the need for sample extraction and conditioning. The non-contacting sensor allows for a variety of process types including corrosive, abrasive and condensing. The first generation platform has been proven in many others for the measurements of O2, CO, CH4, NH3, H2O and many more NIR absorbing gases. This second generation platform has improved reliability and ease of installation and maintenance while still meeting or exceeding designed application demands.
How to change a channel card on an AV550G without disturbing the other seven channels.
¿En busca de información adicional sobre Yokogawa Iberia, tecnología y soluciones?