Zr802G Zirconia Oxygen/Humidity Converter - YOKOGAWA ZR22G User Manual

2.4 ZR802G Zirconia Oxygen/Humidity
Converter
Standard Specification (Oxygen Analyzer)
l
Display: LCD color display of size 320 by 240 dot with touchscreen
Analog Output:
Number of points; Two points (input-output isolation)
Out put signal;
• 4 to 20 mA DC linear or log can be selected (maximum loadresistance 550 Ω)
• HART7 Communication (maximum loadresistance 550 Ω)
• Burn out signal according to NAMUR NE43.
Output range;
vol% O , or partial range is available. For the log output, the minimum range value is fixed at
2
0.1 vol% O
2
Output damping; 0 to 255 seconds. Hold/non-hold selection, preset value setting possible with hold.
Analog Input:
Number of points; one point (for Pressure compensated)
Input signal; 4 to 20 mA DC (maximum 40 mA)
• Converter power supply (standard) voltage; 16.6 to 25.2 V
• With no power supply (option)
Digital Communication:
HART7; AO1, 250 to 550 Ω
Ethernet (Modbus TCP); 10/100 Mbps, Cable length Max.100 m, grounding the shield
RS-485 (Modbus RTU); 115200/38400/9600 bps, Cable length Max.600 m (115200 bps) Max.1200
m (38400/9600 bps) grounding the shield
Contact Output:
Number of points; Four points (one is fail-safe,normally open)
• For DO-1/DO-2/DO-3, select either one, normally energized (normally closed) or normally
de-energized (normally open) status. (Open when power is on.)
• DO-4 is fail-safe. (ON at Fault or Failure of NE107 setting), fixed normally energized
(normally open, closed at power-off).
Contact capacity; 30VDC 3A or 250VAC 3 A (load resistance)
Function; Fault, High-high alarm, High alarm, Low-low alarm, Low alarm, Maintenance, Calibration,
Range switching answer-back, Warm-up, Calibration gas pressure decrease (answer-back
of contact input), Temperature high alarm, Blowback start, Flameout gas detection (answer-
back of contact input), Calibration coefficient alarm, Startup power stabilization timeout
alarm
Contact Input:
Number of points; Two points (No-voltage contact input or Transistor contact input )
On/Off detection;
• No-voltage contact input
Resistivity value 200 Ω or less; closed
Resistivity value 100 kΩ or above; open
• Transistor contact input
Voltage -1 to +1 VDC; closed,
Voltage value 4.5 to +25 VDC or above; open
Contact capacity; Off-state leakage current 3 mA or less
Function; Calibration gas pressure decrease alarm, Range switching, External calibration start,
Flameout gas detection, (ON: heater shut-off and span calibration gas inflow), Blowback
start, Reboot
Automatic Calibration Output: Two points (for dedicated automatic calibration unit ZH40H only)
Environmental condition:
Ambient Temperature; -20 to +55°C
Storage Temperature; -30 to +70°C
Humidity; 10 to 90% RH at 40°C (Non-condensing)
Power Supply Voltage:
Ratings; 100 to 240 V AC
Oxygen concentration; Any setting between 0 to 5 through 0 to 100 vol% O
.
<2. Specifications>
IM 11M12G01-02EN 1sh Edition : Mar. 25, 2021-00
2-14
in 1
2