Description of Krohne BM26A-8000 Optiflex 7200 C

The BM26A-8000 is a magnetic level indicator (MLI) for redundant level measurement in liquid applications. It comes in two versions: BM26A-8000-TWIN and BM26A-8000-BI. The BM26A-8000-TWIN consists of a double measuring chamber with one chamber featuring a flapper indication and the other one – equipped with a level transmitter (TDR guided radar, FMCW radar or displacer) – acting as a bypass chamber. The BM26A-8000-BI features a unique measuring chamber with two compartments, one for the OPTIFLEX 7200 transmitter probe and one for the float moving next to it.
Features of Krohne BM26A-8000 Optiflex 7200 C
- Combined technology for redundancy
- Can be fitted with OPTIFLEX 7200 or OPTIFLEX 8200 guided radar (TDR), OPTIWAVE 7400 radar (FMCW), or BW 25 displacer level transmitter
- Also available as a TWIN version with a dual bypass chamber connected adjacently
- Rugged metallic design – no maintenance
- Large choice of materials e.g. 316L, 304L, alloy C276, alloy 625
- Highly visible flaps housed ina hermetically sealed glass tube (IP68)
- Accuracy from ±2 mm / ±0.08? with OPTIFLEX and OPTIWAVE level transmitters
Application of Krohne BM26A-8000 Optiflex 7200 C
General
- Redundant measurement in liquid applications up to +400°C / +752°F
- Interface measurement
- Safety-related applications up to SIL2/3
Oil and Gas Industry
- Level control on process and storage tanks for oil and other hydrocarbons
- Oil/water interface measurement in high- and low-pressure separators
Chemical industry, petrochemical industry
Redundant level control and interface measurement of various chemicals and refined products such as:
- Refined products (e.g. gasoline, ethylene etc.)
- Toluene, xylene, naphtha, gas condensate
- Heat transfer fluids (e.g. Therminol®) and glycol
- Alcohols
Power Industry
- Redundant level monitoring in the steam cycle of power plants (e.g. steam condensate, boiler feedwater, etc.)
- Level monitoring of heat exchangers
Specification of Krohne BM26A-8000 Optiflex 7200 C
General Information
Product Type | Level indicator |
Product family name | BM |
Product positioning | For liquids in redundant measurement |
Measurement principle | Radar (FMCW), Displacer, Guided radar (TDR), Float |
Level measurement type | Continuous measurement |
Contact to the measured medium | Yes |
Interface measurement | Yes |
Redundancy | Yes |
Measured media | Liquids |
Measuring range (liquids) | 0.3…5.5 m/ 1…18 ft (other on request) |
Measuring point | Bypass |
Operating Condition
Process temperature | Version with OPTIFLEX 7200: -50…+250°C/ -58…+482°FVersion with OPTIFLEX 8200: -50…+315°C/ -58…+599°F Version with OPTIWAVE 7400: Version with BW 25:
|
Materials
Gaskets | Depending on the selected device configuration |
Wetted parts | Depending on the selected device configuration |
Process connections
Flange connections | EN (1092-1): DN15…50 ASME (B 16.5): ½…2? |
Approvals/Standards
Certificates/Approvals Ex | ATEX, IECEx |
Certificates/Approvals Safety | SIL 2/3 |
Communication
Analog outputs | 4…20 mA |
Discrete outputs | Limit switches |
Digital outputs | FOUNDATION™ fieldbus, HART®, Profibus-PA |
Accuracy
Accuracy (liquids) | Indicator: ±10 mm/0.39 in (optional: ±5 mm / 0.2 in with LT40)OPTIFLEX/OPTIWAVE: ±2 mm /0.08 in |
For More Information and Price: Krohne BM26A-8000 Optiflex 7200 C
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