Yokogawa Single Channel Oxygen Analyzer System ZR22/ZR402 - Manual (Page 20)

IM 11M12A01-03E 2-1
2. Specifications
2. Specifications
This chapter describes the specifications for the following:
ZR22G General-use separate-type detector (See Section 2.2.1)
ZH21B Dust protector (See Section 2.2.2)
ZR402G Separate-type converter (See Section 2.3)
ZA8F Flow setting unit (See Section 2.4.1)
ZR40H Automatic calibration unit (See Section 2.4.2)
ZO21S Standard gas unit (See Section 2.5)
2.1 General Specifications
2.1.1 Standard Specifications
High Temperature Humidity Analyzer
Oxygen concentration in mixed gas which consists of water vapor and air is proportional
to the volume rate of air, so the volume rate of water vapor can be calculated by the
oxygen concentration.
Measured Object:Water vapor (in vol%) in mixed gases (air and water vapor)
Measured System: Zirconia system
Measured Range: 0.01 to 100 vol% O
2
, 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
⍀) Oxygen concentration;
Any setting in the range of 0 to 5 through 0 to 100 vol%O
2
(in 1
vol% O
2
), or partial range.
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
⍀, depending on quantity of field devices
connected to the loop (multi-drop mode).
(Note) HART is a registered trademark of the HART Communication
Foundation.
Display Range: Oxygen concentration; 0 to100 vol% O
2
, Moisture quantity; 0 to 100
vol% H
2
O
Mixture ratio; 0 to 1 kg/kg
Relative humidity; 0 to 100 %RH
Dew point; -40 to 370
Њ C
(Note) Those values are calculated by temperature and absolute
pressure. Then accurate temperature and pressure value must be
input to the converter.
Warm-up Time: Approx. 20 min.
(Note) These characteristics are calculated by oxygen concentration
measured in air which include water vapor.