| |
|
YOKOGAWA ZR202G Zirconia High Temperature Humidity Analyzer |
YOKOGAWA ZR202G Zirconia High Temperature Humidity Analyzer
The ZR202G Integrated Type Zirconia High Temperature Humidity Analyzer integrates a probe and a converter in a single unit, and does not require any sampling system.
The analyzer continuously measures the humidity of high temperature air and is typically used in steam and electric dryers. It is ideal for monitoring and controlling the humidity in dryers and humidifiers used in various industries, helping improve their productivity.
The probe is available in several insertion length and flange types, with optional accessories to assure accuracy. Automatic calibration is possible with an appropriate system configuration using optional equipment. The analyzer has infrared switches that allow the user to operate the instrument without opening the cover.
Features
|
* |
Reduces installation costs |
|
* |
Infrared switch operation |
|
* |
Zirconia sensor and heater assembly can be replaced in the field |
|
* |
Can measure either oxygen concentration or humidity |
|
* |
Remote maintenance using digital communications (HART) reduces maintenance costs. |
|
|
|
Note: HART is a registered trademark of HART Communication Foundation. |
Specifications
|
Measurement object |
Water vapor (in vol%) in mixed gases (air and water vapor) |
|
Measurement system |
Zirconia system |
|
Display |
6-digit LCD |
|
Switch |
Three optical switches |
|
Output signal |
4 to 20 mA DC, one point (maximum load resistance 550 Ω) |
|
Measurement range |
0 to 100 vol% H2O or 0 to 1.000kg/kg |
|
Digital communication (HART) |
250 to 550 Ω, depending on number of field devices connected to the loop (multi-drop mode). |
|
Sample gas pressure |
- 5 to + 20 kPa |
|
Sample gas temperature |
0 to 700 deg C (Probe only) |
|
Probe length |
0.4, 0.7, 1.0, 1.5, 2.0, 2.5, 3.0 m |
|
Contact output |
Two points (one is fail-safe, normally open) |
|
Contact input |
Two points |
|
Calibration |
Method; zero/span calibration
Calibration mode; automatic, semi-automatic and manual (with optical switchn). |
|
Construction |
Non-explosion proo. Equivalent to NEMA4X/IP66 |
|
Ambient temperature |
-20 to 55 deg C (-5 to +70 deg C on the case surface) |
|
Power supply |
85 to 264 V AC; 45 to 66 Hzr |
Performance
|
Repeatability |
±1 vol%H2O (sample gas pressure 2 kPa or less) |
|
Linearity |
±2 vol%H2O (sample gas pressure within ±0.49 kPa) |
|
Drift |
±3 vol%H2O/month (both zero and span) |
|
Response speed |
90% response within 5 sec |
Applications
- 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 |
|
