Instrument Accuracy Specs: conductivity_analyzer
Accuracy, range, and performance specifications for process measurement instruments. Covers pressure transmitters (standard, high-accuracy, economy), differential pressure transmitters, temperature transmitters (RTD, thermocouple), flow meters (magnetic, vortex, Coriolis, ultrasonic, turbine), level transmitters (radar, GWR, ultrasonic, DP), pH analyzers, conductivity analyzers, dissolved oxygen sensors (amperometric, optical), and turbidity meters. Each record includes accuracy (% span or % reading), repeatability, turndown ratio, response time, ambient/process temperature range, max pressure, output signal, SIL rating, and MTBF. 28 records from Emerson, E+H, Yokogawa, Siemens, and Hach instrument datasheets.
| instrument type | measurement principle | MTBF years (years) | SIL rating | accuracy absolute | accuracy absolute unit | ambient temp range C max (degC) | ambient temp range C min (degC) | max pressure psi (psi) | notes | output signal | process temp range C max (degC) | process temp range C min (degC) | range max | range min | range unit | repeatability pct (%) | response time s (s) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| conductivity_analyzer | inductive (toroidal) | 10 | SIL 1 | 0.05 | mS/cm | 60 | 0 | 580 | Toroidal (non-contact) type (E+H Indumax CLM50 / Rosemount 226); ±1% span; 0.01-2000 mS/cm range; for aggressive fluids (acids/bases) where electrode fouling is problematic | 4-20mA HART PROFIBUS | 130 | 0 | 2,000 | 0 | mS/cm | 0.5 | 5 |
| conductivity_analyzer | two-electrode contacting | 7 | SIL 1 | 2 | uS/cm | 60 | 0 | 145 | Low-range contacting conductivity (E+H Indumax CLS50 / Yokogawa); +/-1% span; for clean water (drinking water, condensate, RO permeate); cell constant K=0.01-0.1 cm-1 | 4-20mA HART | 80 | 0 | 2,000 | 0 | uS/cm | 0.5 | 5 |
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