YOKOGAWA ZR402G

  <2.Specications>
2-1
IM 11M12A01-04E 11th Edition : Jul. 19, 2017-00
2. Specications
This chapter describes the specications for the following:
ZR202G General-use Integrated type Zirconia Oxygen Analyzer (See Section 2.1.2)
ZO21R-L Probe protector (See Section 2.1.3)
ZH21B Dust protector (See Section 2.1.4)
ZA8F Flow setting unit (See Section 2.2.1)
ZR20H Automatic calibration unit (See Section 2.2.2)
ZO21S Standard gas unit (See Section 2.3)
K9471UA Dust Filter for Oxygen Analyzer (See Section 2.4)
2.1 General Specications
2.1.1 Standard Specications
Measured Object: Oxygen concentration in combustion exhaust gas and mixed gas
(excluding inammable gases). May not be applicable corrosive gas
such as ammonia, chlorine is present-check with YOKOGAWA.)
(In case of Humidity Analyzer, Water vapor (in vol%) in mixed gases (air
and water vapor))
Measured System: Zirconia system
Measurement Range: 0.01 to 100 vol%O
2
(In case of Humidity Analyzer, 0 to 100 vol% H
2
O or 0 to 1.000 kg/kg)
Output Signal: 4 to 20 mA DC (maximum load resistance 550 Ω)
Setting Range: Any setting in the range of 0 to 5 through 0 to 100 vol%O
2
(in 1 vol%O
2
),
or partial range
In case of Humidity Analyzer,
Moisture quantity: 0 to 25 through 0 to 100 vol% H
2
O (in 1 vol% H
2
O), or
partial range.
Mixture ratio; 0 to 0.2 through 0 to 1.000 kg/kg (in 0.001 kg/kg), or
partial range.
Digital Communication (HART): 250 to 550 Ω, depending on number of eld devices connected
to the loop (multi-drop mode).
Note: HART is a registered trademark of the HART Communication Foundation.
Display Range: Oxygen concentration; 0 to 100 vol%O
2
In case of Humidity Analyzer,
Moisture quantity; 0 to 100 vol% H
2
O, Mixture ratio; 0 to 1 kg/kg, Relative
humidity; 0 to 100% RH (Note), Dew point; -40 to 370°C (Note)
Note: These values are affected by temperature and absolute pressure, So accurate temperature
and pressure values must be inputted to the converter.
Warm-up Time: Approx. 20 min.
These characteristics are calculated by oxygen concentration measured in air which include
water vapor.
Repeatability: (Excluding the case where the reference gas is by natural convection)
±0.5% Maximum value of set range; less than 0 to 25 vol%O
2
range
±1% Maximum value of set range; 0 to 25 vol%O
2
or more and up
to 0 to 100 vol%O
2
range
In case of Humidity Analyzer, ± 1 vol% H2O; (Sample gas pressure 2
kPa or less)