YOKOGAWA ZR22G User Manual page 39

Maximum Distance between Detector and Converter: Conductor two-way resistance must be 10 Ω or
less (when a 1.25 mm
Construction: NEMA/CSA TYPE 4X (with conduit holes completely sealed with a cable gland)
Wiring Connection: eight holes
Type: G1/2, M20 × 1.5mm, Pg13.5, 1/2NPT
Installation: Panel, wall or 2-inch pipe mounting
Material:
Case: Aluminum alloy
Window: Polycarbonate
Paint Color:
Door and Case; Silver gray (Munsell 3.2PB7.4/1.2)
Finish: Polyurethane corrosion-resistance coating
Weight: Approx. 5 kg
Functions
Value Display; Displays values of the measured oxygen concentration, etc
Graph Display; Displays trends of measured oxygen concentration and the test result from a cell
resistance tester.
Data Display; Displays various useful data for maintenance, such as cell temperature, reference junction
temperature, maximum/minimum oxygen concentration, or the like
Status Message; Indicates an alarm or error occurrence by flashing of the corresponding icon.
Indicates status such as warming-up, calibrating, or the like by the marks.
Alarm Display; Alarm name, description, Countermeasures display at error occurrence, NAMUR
NE107 compliant 4-symbol display
Calibration Functions:
Calibration method; Zero/span calibration (Either zero or span can be skipped)
Calibration mode;
• Automatic Calibration; Requires the ZR40H Automatic Calibration Unit. It calibrates
automatically at specified intervals.
• Semi-automatic Calibration; Requires the ZR40H Automatic Calibration Unit. Input
calibration direction on the touchscreen or contact, then it calibrates automatically
afterwards.
• Manual Calibration; Calibration with opening/closing the valve of calibration gas in
operation interactively with an LCD touchscreen.
Calibration gas setting;
• Zero calibration gas concentration setting range; 0.3 to 100 vol% O
0.01 vol% O
• Span calibration gas concentration setting range; 4.5 to 100 vol% O
0.01 vol% O
Use N -balanced mixed gas containing 0 to10% scale of oxygen for standard zero gas,
2
and 80 to 100% scale of oxygen for standard span gas.
Calibration interval; date/time setting (maximum 255 days)
Purging function: Before warming up the detector, feed the span gas for the set period of time to drain
condensed water out of the piping of calibration gas. Detector's warming-up starts after the
set period of purging time elapses.
Blowback Function: To allow a periodic purging etc., open/close contact output in the set period of
interval or time defined full/semi-automatically.
Alarm Function:
Fault:
Function; The occurrence of Fault alarm stops the power supply to the heater. Fault alarm keeps
turning on until the power shuts down.
Type; Cell voltage failure, Heater temperature failure, A/D converter failure, Memory
failure, Hardware error, data redundancy mismatch
Alarm:
Function; Alarm keeps turning on until potential causes of a problem are eliminated.
Type; Oxygen concentration alarm, Humidity alarm, Mixing-ratio alarm, relative humidity alarm,
Zero-point calibration coefficient alarm, Span-point calibration coefficient alarm, EMF
stabilization time-up alarm, Input-temperature alarm, Cold junction temperature alarm,
Thermocouple voltage alarm, Input current alarm, Battery low alarm, Cell resistance alarm
NAMUR NE 107 Alarm Display Function:
2
cable or equivalent is used, 300 m or less.)
)
2
)
2
<2. Specifications>
(minimum setting;
2
(minimum setting;
2
IM 11M12G01-02EN 1sh Edition : Mar. 25, 2021-00
2-18