Product specifications

10 APPENDIX
92
10.2 Specification
Model APOA-370
Measurement target Ozone (O
3
) in atmospheric air
Measuring principle Cross modulation type ultraviolet absorption method
Range Standard 0 ppm to 0.1/0.2/0.5/1.0 ppm Automatic range switching
Minimum detection
sensitivity
For ranges of 0.2 ppm or less: 0.5 ppb (2σ)
For ranges exceeding 0.2 ppm: 0.5% (2σ) of the full scale
Reproducibility
(repeating accuracy)
±1.0% of the full scale
Linearity
(readout error)
±1.0% of the full scale
Zero drift
±1.0% of the full scale /day
±2.0% of the full scale /week (ambient temperature change: within 5°C)
Span drift
±1.0% of the full scale /day
±2.0% of the full scale /week (ambient temperature change: within 5°C)
Response rate 120 s or shorter (T
90
from the inlet)
Interference effect
Moisture 2.5%: ±2.5 ppb
Toluene 1 ppm: ±2.5 ppb
SO
2
0.2 ppm: ±4.0% of the full scale
Sample collection
rate
Approximately 0.7 L/min
Display Measured value, alarm, time, alarm history, calibration history, etc.
Alarms Zero calibration, Span calibration, Deozonizer temperature, etc.
Input/output
0 V to 1 V
(2 lines of momentary and rolling average values or average values)
Contact input/output
(range, alarm, etc.)
RS-232C (optional)
Ambient temperature 5°C to 40°C
Ambient humidity
For lower than 31°C, the relative humidity must be 80% or lower.
For temperatures between 31°C and 40°C, the relative humidity must be below a linearly
declining range from 80% at 31°C to 50% at 40°C .
Altitude 3000 m above sea-level, or lower
Power source
100, 115 V ±10 V AC 50/60 Hz, or
220, 230, 240 V ±10 V AC 50 Hz (depending upon the specifications)
Power consumption Approximately 100 VA in steady state
External dimensions 430(W) × 221(H) × 550(D) mm
Mass Approximately 15 kg
Connections
Sample inlet: Joint for 6 mm O.D./ 4 mm I.D. Teflon tube
Calibration gas inlet: Joint for 6 mm O.D./ 4 mm I.D. Teflon tube
Exhaust gas: Joint for 6 mm O.D./ 4 mm I.D. Teflon tube