Remote measurement of under-explosive concentrations of combustible gases and vapors of petroleum products.
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- Specifications
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Specifications
| Detectable components | propane, methane, butane, hexane | ||
|---|---|---|---|
| Verification gases | propane, methane | ||
| Measurement range, % of LEL | from 0 to 100 | ||
| Sampling method | — | ||
| Principle of measurement | optical absorption | ||
| Interval between verifications, months | 24 | ||
| Indications setting time (T90), s, not more than | 60 | ||
| Heating time, s, not more than | 120 | ||
| from 4.5 to 30 1) (DC) | |||
| Power consumption, W, not more than | 2.5 | ||
| Interfaces (protocols) | power and signal line SENS (SENS protocol), RS-485 (protocols SENS, Modbus RTU), 4-20 mA (HART protocol) | ||
| Signal relay features | maximal switchable DC/AC voltage, V | 30 / 42 | |
| maximal switchable current, A | 0.5 | ||
| ±3 | |||
| ±5 | |||
| Ambient temperature range, ℃ | from -40 to +60 | ||
| Protection degree as per GOST 14254 | IP66 | ||
| Explosion-proof marking | 1Ex db IIB T6 Gb | ||
| 9 | |||
| Overall dimensions W x H x D, mm, not more than | 240 × 240 × 170 | ||
| Mass, kg, not more | 3 | ||
| Service life, years | 15 | ||
| Mean time between failures, hours, not less than | 15 000 | ||
Note. 1) when the unit is equipped with "SENS" interface maximal power voltage is limited to 18V | |||