Delta OHM HD37AB17D, Operating Manual

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HD37AB17D/HD37B17D
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V1.5
Sensors Features
Relative Humidity RH
Sensor Capacitive
Sensor Protection INOX grid filter
(on request P6 filter in sintered AISI316 10µm or P7 fil-
ter in sintered PTFE 20µm)
Measurement range 0...100%RH
Sensor working range -20…+60°C
Accuracy ±1.5%
(0…85%RH)/ ± 2.5% (85…100%RH) @ T=15…35 °C
(2 + 1.5% of the measurement)% @ T= remaining range
Resolution 0,1%
Temperature dependence
2% on all the temperature range
Hysteresis and repeatability 1% RH
Response Time (T
90
) <20 sec. (air speed= 2m/sec) without filter
Long term stability 1%/year
Temperature T
Sensor type NTC 10K Ω
Measurement range -20…+60°C
Accuracy ± 0.2°C ± 0.15% of the measurement
Resolution 0.1°C
Response time (T
90
) <30 sec. (air speed = 2m/sec) without filter
Long term stability 0.1°C/year
Carbon Monoxide CO (only HD37AB17D)
Sensor Electro chemical cell
Measurement range 0…500ppm
Sensor working range -5…50°C
Accuracy
± 3ppm+3% of the measurement
Resolution 1ppm
Response time (T
90
) <50 sec.
Long term stability 5% of the measurement/year
Expected life >5 years in normal environment conditions
Carbon Dioxide CO
2
Sensor NDIR with a double wave length
Measurement range 0…5000 ppm
Sensor working range -5…50°C
Accuracy ± 50ppm+3% of the measurement
Resolution 1ppm
Dependence on temperature 0,1%f.s./°C
Response time (T
90
) <120 sec. (air speed= 2m/sec)
Long term stability 5% of the measurement/5 years
6. STORAGE
Instrument storage conditions:
Temperature:
• Humidity: 10...90%RH no condensing.
• During the storage, avoid the points where:
The humidity is high.
The instrument is exposed at the direct radiation of the sun.
The instrument is exposed at a high temperature source.
There are hard vibrations.
There are vapour, salt and/or corrosive gas.
The instrument case is in ABS plastic material: don’t use not compatible solvents for
their cleaning.