KROHNE BM 26 A EN - Manual (Page 12)

12 Installation and Operating Instructions BM 26 A
Type code
Type code element
Code Code definition
Product code BM 26 A Bypass Level Indicator (A model)
Process connections C
D
E
F Two lateral connections
Two axial connections
One top lateral entry and one bottom axial exit
One bottom lateral entry and one top axial exit
Construction material code RR Stainless steel
Design No info
B
AG
IC/TR
IC/HR
Standard design
Heater
Anti-freeze version -40°C / -40°F
With low temperature insulation
With high temperature insulation
Level transducer No info
ER Without level transducer
With level transducer
Contact No info
K
Without limit switches
With limit switches
Approval No info
EXI
EXD
Standard, no approval
For EEx – intrinsically safe applications
For EEx – flameproof applications
1.3 Mechanical installation requirements
Ensure that the requirements given below have been followed:
• The effective pressure of the installation (the maximum permitted by the pressure limiting valve)
must never be greater than the maximum permitted pressure, P
s
, marked on the instrument
nameplate. The test pressure, P
t
, is given on the order documents and BM 26 A nameplate.
• The user must be sure that materials in contact (guide tube, float, gaskets, etc) with the fluid
used are compatible with the fluid and conform to ageing characteristics of the fluid used and the
measurement environment. These have either been recommended in the instructions or form the
subject of a particular specification in the contract.
• The external pressure (P
ext
) must be equal to atmospheric pressure(P
atmos
).
1 Tank
2 Liquid product
3 BM 26A level-liquid indicator
(measuring tube):
Vertical installation only!