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The EL-2 is a hand held, battery powered, 8-bit data logger with LCD display. It stores up to 8000 readings with sample intervals between 5 seconds and 12 hours. Measurement ranges include voltage, current, temperature (K-type), humidity, pH, frequency and rate count via suitable sensors. The module is set up and data is downloaded via a PC. This is a popular part, normally stocked in high quantity and suitable for new designs.
| Specification | Range | Resolution | Accuracy |
|---|---|---|---|
| Temperature ('K' type thermocouple) | -25 to +200°C | 1°C | ±1°C |
| -13 to +392°F | 1°F | ±2°F | |
| Temperature (internal) | -10 to +50°C | 1°C | ±1°C |
| +14 to +122°F | 1°F | ±2°F | |
| Humidity | 5 to 95% RH | 1%RH | * |
| pH | 0 to 14pH | 0.1pH* | ±0.1pH |
| Voltage | 0 to 2V d.c. | 0.01V | ±1% |
| 0 to 20V d.c. | 0.1V | ±1% | |
| Current | 0 to 2A | 0.01A | ±1% |
| Rate count | 0 to 255 | 1 unit | N/A |
| Frequency | 40 to 400Hz | N/A | ±2Hz |
| Serial link | 8 Pin Mini DIN | ||
| Sensor connection | 4 Pin Mini DIN Connector | ||
| Memory | Up to 8000 samples * | ||
| Battery | 3.6V 1/2AA lithium (up to 3 years life) ** | ||