YOKOGAWA ZR22S, User Manual

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<2. Specifications>
2-1
IM 11M13A01-02E
2. Specifications
This chapter describes the specifications for the following:
ZR22S Separate type explosion-proof detector (See Subsection 2.2.1)
ZO21R Probe protector (See Subsection 2.2.2)
ZR22S (0.15 m) Separate type explosion-proof detector for high temperature
(See Subsection 2.3.1)
ZO21P High temperature probe adapter (See Subsection 2.3.2)
ZR402G Separate type converter (See Section 2.4)
ZA8F Flow setting unit (See Subsection 2.5.1)
ZR40H Automatic calibration unit (See Subsection 2.5.2)
ZO21S Standard gas unit (See Section 2.6)
Other Equipments (See Section 2.7)
CAUTION
Requirements for explosion-proof use:
The ZR22S is connected to a ZR402G or AV550G*1 that is mounted in a non-hazardous area.
The ambient temperature is in the range -20 to + 60°C. The surface temperature of the ZR22S is
not over the temperature class T2 (300°C)*2.
*1: Refer to IM 11M12D01-01E
*2: The terminal box temperature does not exceed 150°C.
Oxygen concentration of sample/reference/calibration gas shall not exceed that found in normal
air, typically 21 vol%.
2.1 General Specifications
Standard Specifications
Measured Object: Oxygen concentration in combustion exhaust gas and mixed gas
( excluding inflammable gases. May not be applicable corrosive gas such
as ammonia and chlorine is present — Contact with YOKOGAWA and
its agency.)
Measurement System: Zirconia system
Measurement range: 0.01 to 100 vol%O
2
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
Digital Communication (HART): 250 to 550 Ω, depending on number of field devices connected
to the loop (multi-drop mode).
Note: HART is a registered trademark of the HART Communication Foundation.
Display Range: 0 to 100 vol%O
2
Warm-up Time: Approx. 20 min.
Repeatability: ±0.5% Maximum value of set range; Range from 0 to 5 vol%O
2
or more
and less than 0 to 25 vol%O
2
±1% Maximum value of set range; Range from 0 to 25 vol%O
2
or more
and up to 0 to 100 vol%O
2