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General| Measurement Parameters | Temperature, Humidity, Pressure, mV |
|---|---|
| Humidity Range | 0 to 100 %RH |
| mV Resolution | 0.1 mV |
| Data Storage | Internal memory |
| Interface | USB |
| Protection Degree | IP40 |
| Sampling Rate | 1 s to 1 h |
| Power Supply | Battery |
| Battery Life | Up to 1 year (depending on sampling rate) |
| Temperature Range | -40 to 80 °C |
| Temperature Accuracy | ±0.2 °C |
Describes the function of the ON/OFF, HOLD+ON/OFF, and HOLD keys for instrument control.
Explains the REL key for relative measurements and UNIT A key for unit selection.
Details the UNIT B, A-B difference display, and SERIAL OUTPUT functions.
Covers the PO mode for returning to normal operation and P1 for data dumping.
Explains P1 memory clear function and P2 storage interval programming.
Details setting the RS232C baud rate (P3) and instrument year (P4).
Describes setting the instrument's month (P5) and day (P6).
Covers setting the instrument's hour (P7) and minute (P8).
Explains enabling or disabling the instrument's auto power-off function.
Describes the DATA CALL key for recalling Max, Min, Mean, Q, and Time values.
Details the ▲ key's use for parameter increase and memory clear.
Explains the ENTER key for programming confirmation and data storage start/stop.
Describes the ▼ key's role in decreasing parameters during programming/calibration.
Details the connection for Pt100 amplified temperature probes.
Describes connections for LP 9021 series photometric and radiometric probes.
Instructions for switching on the instrument and verifying display segments.
Guides on selecting measurement units and switching the instrument off.
Explains Q (integration) and RCD (record) functions for measurements.
Procedure for setting integration limit time (T) and energy (Q) for probes.
Covers various operations and provides attention points for keyboard usage.
Details on performing light intensity measurements with LP 9021 probes.
Information on low battery indicators and procedures for battery replacement.
Details the precision specifications for the instrument and probes.
Provides technical specifications for the LP 9021 PHOT probe.
Provides technical specifications for the LP 9021 LUM6 probe.
Details technical specifications for the LP 9021 PAR irradiance probe.
Details technical specifications for the LP 9021 RAD irradiance probe.
Details technical specifications for the LP 9021 UVA irradiance probe.
Details technical specifications for the LP 9021 UVB irradiance probe.
Details technical specifications for the LP 9021 UVC irradiance probe.
Instructions for physically connecting the instrument to a PC.
Steps for establishing PC communication using Windows 3.1 Terminal.
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