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There are two kinds of the straight type explosion-proof zirconia oxygen analyzer can choose.ZR22S/ZR402G is body, composed of ZR22S explosion-proof probe and ZR402G explosion-proof converter.
ZR202S is one size analyzer, sensor and converter.Both zirconia oxygen analyzer without sampling device, and can directly install the probe in the flue wall or furnace, in order to measure the oxygen concentration in the flue gas.Converter shows zirconium pool temperature and zirconium pool electromotive force, and the oxygen concentration.
The most suitable for monitoring the analyzer combustion, and control the explosive of low oxygen combustion environment all kinds of industrial furnace, such as oil refineries, petrochemical plants and gas plant.
features
Embedded probe can field replacement heating equipment, reduced maintenance costs.
Probe with long service life, high reliability of the zirconia sensor.
Points size converter ZR402G with LCD touch screen, easy to operate.
A body ZR202S probe and converter at a suit, in order to reduce wiring, piping and installation costs.ZR202S unit by optical switch, easy to site operation.
Using a digital communications (HART) for remote maintenance and reduce maintenance costs.
Description: HART is the HART communication foundation, a registered trademark.
specifications
| Measurement object | Combustion exhaust gas and oxygen concentration of mixed gas |
| Measurement system | Zirconia system |
| Explosion-proof certification | ZR22S-A (ATEX)；EExd II B + H2，Group II，Category 2GD，T2，T300℃ ZR22S - B (FM) : the Class I, Division1, Groups B, C and D, Class II/III, Division1, Groups, E, F and G, T2 ZR22S - C (CSA) : Class I, Division1, Groups B, C and D, Class II/III, Division1, Groups, E, F and G, T2 ZR22S-D (IECEx): Exd II B + H2，T2，ExtD A21 IP66 T300℃ |
| Oxygen concentrations | 0.01～100vol% |
| The output signal | 4 ~ 20 ma DC, two points (550 Ω maximum load resistance) |
| Measuring range | 0 ~ 5 vol % or 0 ~ 100 vol % (O2Unit 1 vol %) range arbitrarily set, or part of the range |
| Digital communications (HART) | 250 ~ 550 Ω, depends on the number of field devices circuit is connected (multipoint mode) |
| Sample gas pressure | 0.15 m probe, is 0.5 ~ + 5 kpa. The furnace is not allowed in pressure fluctuations. |
| The sample temperature | 0 ~ 700 ℃ (probe only) 700 ~ 1400 ℃ (with 0.15 m probe and high temperature probe adapter) |
| The length of the probe | 0.15，0.4，0.7，1.0，1.5，2.0m |
| Contact output (ZR402G) | (fail safe, normally open) at four o 'clock |
| Contact input (ZR402G) | At two o 'clock |
| Calibration (ZR402G) | Methods: zero/span gas calibration Calibration modes: automatic, semi-automatic and manual (with LCD touch screen) |
| The sensor structure | Equivalent NEMA4X/IP66 |
| The converter structure | Outdoor installation is the same as NEMA4X/IP66 |
| The environment temperature (ZR22S) | - 20 ~ + 60 ℃ (terminal box - 20 ~ + 150 ℃) |
| The environment temperature (ZR402G) | - 20 ~ + 55 ℃ |
| Reference air system | Instrument air: 50 kpa + furnace pressure Consumption: about 1 nl/min |
| Wiring connections | ATEX: 1.5 mm M20 or 1/2 NPT either (2) FM: 1/2 NPT (2) CSA: 1/2 NPT (2) IECEx: 1.5 mm M20 or 1/2 NPT either (2) |
| The power supply | 85～264V AC，45～66Hz |
ZR202S
| Measurement object | Combustion exhaust gas and oxygen concentration of mixed gas |
| Measurement system | Zirconia system |
| According to | Six of the LCD |
| switch | Three optical switch |
| Explosion-proof certification | ZR202S-A (ATEX): EExd II B + H2，Group II， Category 2GD，T2，T300℃ ZR202S - B (FM) : the Class I, Division1, Groups B, C and D, Class II/III, Division1, Groups, E, F and G, T2 ZR202S - C (CSA) : Class I, Division1, Groups B, C and D, Class II/III, Division1, Groups, E, F and G, T2 ZR202S-D (IECEx): Exd II B + H2, T2, ExtD A21 IP66 T300℃ |
| Oxygen concentrations | 0.01～100vol% |
| The output signal | 4 ~ 20 ma DC, a little (550 Ω maximum load resistance) |
| Measuring range | 0 ~ 5 vol % or 0 ~ 100 vol % (O2Unit 1 vol %) range arbitrarily set, or part of the range |
| Digital communications (HART) | 250 ~ 550 Ω, depends on the number of field devices circuit is connected (multipoint mode) |
| Sample gas pressure | -5～+5kPa The furnace is not allowed in pressure fluctuations |
| The sample temperature | 0 ~ 700 ℃ |
| The length of the probe | 0.4，0.7，1.0，1.5，2.0m |
| Contact output | Two (a fail safe, normally open) |
| Contact input | At two o 'clock |
| calibration | Methods: zero/span gas calibration Calibration mode: automatic, semi-automatic and manual (with optical switch) |
| structure | Equivalent NEMA4X/IP66 |
| The environment temperature | - 20 ~ + 55 ℃ (shell surface - 5 ~ + 70 ℃) |
| The power supply | 85～264V AC，45～66Hz |
performance
| repetitive | Set a maximum range of plus or minus 0.5% |
| linear | Set a maximum range of plus or minus 1% |
| drift | To set a maximum range of + 2% per month |
| The response time | 90% response for 5 seconds |
