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HD208 – Compact Data Logger: Monitoring Temperature, RH and Dew Point
Brand: Delta OHM S.R.L.The data loggers of the series HD208 are compact instruments for monitoring temperature, relative humidity (RH) and dew point temperature. Usable in a wide spectrum of applications, are available in various models (with or without LCD display)
- With 1 channel for temperature only
- With 1 channel for temperature and relative humidity
All models can be supplied with or without LCD display.
The logging function is extremely versatile; logging can be started and stopped manually, automatically or delayed.
For each quantity detected, two configurable alarm thresholds can alert the user if the measure exceeds the configured parameters.
The instrument automatically generates, after logging, a PDF report with charts of the variables collected and a CSV file with all measurements logged.
The basic application software HD35AP-S supplied with the instrument allows the configuration of the instrument, the real-time monitor of the measurements and the transfer of the acquired data into a database.
The HD35AP-CFR21 application software option allows the use of security features of the recorded data and configuration of the instrument in response to FDA 21 CFR part 11 recommendations.
The sensors are pre-calibrated and require no further calibration by the user. If necessary, the user can perform a new calibration using the HD35AP-S application software.
Specifications
Brand
Relative Humility Sensor
- Capacitive
Relative Humility Measuring Range
- 0…100 % RH
Relative Humility Resolution
- 0.1 % RH
Relative Humility Accuracy
- ± 1.5 % RH (0…85 % RH) /
- ± 2.5 % RH (85…100 % RH) @ T=15…35° C
- ± (2 + 1.5 % measure) % @ T=remaining range
Relative Humility Sensor Operating Temperature
- -40…+80° C
Relative Humility Response Time
- T90 < 20 s (air speed 2 m/s, without filter)
Relative Humility Temperature Drift
- ± 2 % over the whole operating temperature range
Relative Humility Stability
- 1 % / year
Temperature Sensor
- NTC10kΩ @ 25° C
Temperature Measuring Range
- -40…+105° C
Temperature Resolution
- 0.1° C
Temperature Accuracy
- ± 0.3° C in the range 0…+70° C
- ± 0.4° C outside
Temperature Long-term Stability
- 0.1° C / year
Logging Interval
- 1, 2, 5, 10, 15, 30 s / 1, 2, 5, 10, 15, 30, 60 min
Storable Quantities
- According to the model: Temperature - Mean Kinetic Temperature (MKT) - Relative Humidity - Dew Point - Battery Voltage.
Memory
- Flash memory with circular management or stop logging when full.
Alarms
- Two alarm thresholds (configurable) for each measured quantity
Power Supply
- 3.6 V not rechargeable lithium-thionyl chloride internal battery (Li-SOCl2), size AA, 2-Pole Molex 5264 connector.
Battery Life
- 2 years typical, with logging interval 30 s
PC Connection
- USB port with mini-USB connector
Operating Conditions
- -40…+75° C / 0…100 %RH non condensing
Material
- ABS (with added UV filters)
Protection Degree
- IP 64
Weight
- 150 g approx
Installation
- Wall mount
- Production Facilities
- Storage Rooms
- Food Process
- Cooling Chains
