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Test & Measurement
Instruments
HygroLog HL-20 High Precision Low Cost Data Logger
Features
- Highest accuracy at 0.8 %RH and 0.2C
- Outstanding long term stability
- 20,000 data point memory with date & time stamps
- Programmable alarm limits
- Programmable recording intervals
Downloads
This compact data logger for humidity and temperature measurement offers high precision and reliability at a reasonable price. The HL20 series is easy to use and deployable in a wide range of applications. Thanks to its integrated batteries, the HL20 works completely independently and offers its users maximum flexibility.
Features
- Highest accuracy at 0.8 %RH and 0.2C
- Outstanding long term stability
- 20,000 data point memory with date & time stamps
- Programmable alarm limits
- Programmable recording intervals
- Psychrometric calculations of dew and frost point values available
- FDA 21 CFR Part 11 / GAMP 4 compliant
- UART interface
- Long battery life
Specifications & Spare Parts
| Dimensions | 130 x 72 x 32 mm |
| Operating range electronics | -10…60 °C / 0…100 %RH |
| Accuracy at 23 ±5 °C | ±0.8 %RH @ 10…60 %RH / ±0.3 K ±1.3 %RH @ 60…100 %RH / ±0.3 K |
| Measuring range with integrated probe | -10…60 °C / 0…100 %RH |
| Power supply / Power consumption | 3x AA (1.5 V) batteries |
| Long-term sensor stability | <1 %RH / year |
| Response time t 63 | 3 min. (typically) |
| Psychrometric calculations | Dew or frost point |
| Measurement interval | 5 sec. to 1 hour in 5 sec. increments |
| Memory size | 20000 data values (%rh/°C, Date, Time) |
| Status indicator LED | 5 sec.: Green flash when recording data, red flash for out-of-limit value or logger problem |
| Communication interfaces | Mini USB (UART) |
| Enclosure material | ABS |
| IP protection rating | IP40 |
| FDA/GAMP compatibility | FDA 21 CFR Part 11 and GAMP compatible |
