KROHNE BM 26 A EN - Manual (Page 35)

Installation and Operating Instructions BM 26 A 35
4 Special versions
4.1 Low-temperature versions AG, TR or IC/TR
Version BM 26 A/AG: to -40°C or -40°F
Version BM 26 A/TR: to -200°C or -330°F
Version BM 26 A/IC/TR: to -200°C or -330°F
All components are made of solid CrNi steel grade 316 Ti (equivalent to 1.4571) or 316 L (equivalent
to 1.4404). The measuring tube in the BM 26 A/IC/TR has glass wool insulation and aluminium
cladding. The float magnets are made of a special material.
The scale indication is magnified by plexitherm glass for easier reading. The ambient temperature
and product temperature will have been specified by the customer to ensure insulation is
appropriate. The socket length to the connecting flange will have been specified by the customer if
insulation is supplied by the customer.
Version AG
Version TR Version IC/TR
1 Plexitherm glass 1 Measuring tube 1 Measuring tube
2 Indicator scale 2 Indicating tube with indicator 2 Insulation (lagging)
3 Indicating tube with indicator 3 Plexitherm glass 3 Indicating tube with indicator
4 Measuring tube 4 Insulation 4 Plexitherm glass
5 Aluminium cladding
Dimensions in mm (inches)
4.2 High-temperature versions HR or IC/HR
The BM 26 A/HR and BM 26 A/IC/HR versions are suitable for applications in the range from
200°C or 390 °F to 300°C or 570°F. All components are made of solid stainless CrNi steel. The
measuring tube in the BM 26 A/IC/HR version has glass wool insulation and aluminium cladding.
1 Measuring tube
2 Insulation (lagging)
3 Indicating tube with indicator
4 Aluminium cladding