Data Sheet

HD21ABE
Logging
interval
Storage capacity
Logging
interval
Storage capacity
15 seconds About 11 days and 17 hours 10 minutes About 1 year and 104 days
30 seconds About 23 days and 11 hours 15 minutes About 1 year and 339 days
1 minute About 46 days and 22 hours 20 minutes About 2 years and 208 days
2 minutes About 93 days and 21 hours 30 minutes About 3 years and 313 days
5 minutes About 234 days and 17 hours 1 hour About 7 years and 261 days
Technical data of the sensors
CO
2
Carbon Dioxide
Sensor NDIR Dual Wavelength
Measurement range 0 … 5000ppm
Sensor working range -5 … 50°C
Accuracy ±50ppm±3% of measurement
Resolution 1ppm
Temperature dependence 0.1%f.s./°C
Response time (T
90
) < 120 sec (air speed = 2m/sec)
Long-term stability 5% of measurement/5 years
CO Carbon Monoxide
Sensor Electrochemical cell
Measurement range 0 … 500ppm
Sensor working range -5 … 50°C
Accuracy ±3ppm±3% of measurement
Resolution 1ppm
Response time (T
90
) < 50 sec
Long-term stability 5% of measurement/year
Service life > 5 years in normal environment conditions
Atmospheric Pressure Patm
Type of sensor Piezo-resistive
Measurement range 750 … 1100 hPa
Accuracy ±1.5 hPa @ 25°C
Resolution 1 hPa
Long-term stability 2hPa/year
Temperature drift ±3hPa with temperature -20 … +60°C
Relative Humidity RH (HD21ABE17 only)
Type of sensor Capacitive
Sensor protection Stainless steel grid filter (on request 10µm sintered
filter P6 in AISI 316 or 20µm sintered filter P7 in PTFE)
Measurement range 0 … 100 % RH
Sensor working range -20 … +60°C
Accuracy ±1.5%RH (0..90% RH)
±2%RH (elsewhere) for T=15…35°C
±(1.5+1.5% of the measure)%RH for T= -20…+60°C
Resolution 0.1°C
Temperature dependence ±2% on all 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 (HD21ABE17 only)
Type of sensor NTC 10kΩ
Measurement range -20 … +60°C
Accuracy ±0.2°C ±0.15% of measurement
Resolution 0.1°C
Response time (T
90
) < 30 sec (air speed = 2m/sec)
Long-term stability 0.1°C/year
ORDERING CODES
HD21ABE: IAQ Monitor datalogger kit. It measures CO, CO
2
and atmospheric pressure.
Complete with: DeltaLog10 software downloadable from Delta OHM website (version
0.1.5.3 and later) for data download, monitor, and data processing on Personal
Computer, 4 x 1.2V NiMH rechargeable batteries, CP23 USB cable, power supply SWD10,
operating manual, case. The cables must be ordered separately.
HD21ABE17: IAQ Monitor datalogger kit. It measures CO, CO
2
, atmospheric pressure,
temperature and relative humidity. Complete with: DeltaLog10 software downloadable
from Delta OHM website (version 0.1.5.3 and later) for data download, monitor, and
data processing on Personal Computer, 4 x 1.2V NiMH rechargeable batteries, CP23 USB
cable, power supply SWD10, operating manual, case. The cables must be ordered
separately.
Accessories:
BAT-40: Spare batteries with built-in temperature sensor.
Accessories for CO and CO
2
sensors:
MINICAN.12A: Nitrogen bottle for CO and CO
2
sensor calibration at 0ppm. Volume 12 liters.
With adjustment valve.
MINICAN.12A1: Nitrogen bottle for CO and CO
2
sensor calibration at 0ppm. Volume 12 liters.
Without adjustment valve.
HD37.36: Kit connection tube between instrument and MINICAN.12A for CO calibration.
HD21AB17.9: Connection accessory between instrument and MINICAN.12A for CO2
calibration. The connecting tube is included.
Accessories for Humidity sensor:
HD75: Saturated solution at 75.4%RH@20°C for calibration of relative humidity probes, ring
M24x1.5 and M12x1.
HD33: Saturated solution at 33.0%RH@20°C for calibration of relative humidity probes, ring
M24x1.5 and M12x1.
HD11: Saturated solution at 11.0%RH@20°C for calibration of relative humidity probes, ring
M24x1.5 and M12x1.
P6: Complete protection in 10mm sintered AISI 316 for Ø 14mm probes.
P7: Complete protection in 20mm sintered PTFE for Ø 14mm probes.
P8: 20mm protection grid in stainless steel and PBT for Ø 14mm probes, thread M12x1.