ZR202G Zirconia High Temperature Humidity Analyzer

Model ZR202G
Integrated Type Zirconia High Temperature Humidity Analyzer

Product Information

Integrated Type 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.

Bulletin for ZR202G

General Specification for ZR202G

User's Manual for ZR202G

Selection Guide for Oxygen Analyzer

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