Technical data, 4 technical data: optional limit switches – KROHNE BM 26 BASIC_ADVANCED EN User Manual
Page 56
8
TECHNICAL DATA
56
BM 26 BASIC/ADVANCED
www.krohne.com
10/2012 - 4000347004 - HB BM26 Basic/Adv R04 en
8.4 Technical data: optional limit switches
Approvals and certification
CE
This device fufills the statutory requirements of the EC directives.
The manufacturer certifies successful testing of the product by
applying the CE mark.
Explosion protection
Explosion protection
Explosion protection
Explosion protection
ATEX
II 1 G Ex ia IIC T4...T6
2
II 1 G Ex ia IIC T4...T6
2
II 2 G Ex ib IIC T4...T6
3
II 2 G Ex ib IIC T4...T6
3
Other standards and approvals
Other standards and approvals
Other standards and approvals
Other standards and approvals
EMC
Electromagnetic Compatibility Directive 2004/108/EC in conjunction
with EN 61326-1 (2006)
Vibration resistance
Vibration class 4M4 according to EN 60721-3-4
1 The customer must specify the position of the converter at the top or the bottom of the analog transmitter
2 Conventional or FISCO systems intrinsically-safe systems
3 FISCO systems intrinsically-safe systems
Module output
FOUNDATION™ Fieldbus
PROFIBUS PA
Order code
xF45xDxxxxx (PR)
xF45xXxxxxx (PR)
Version
Non-NAMUR
NAMUR
Measuring system
Measuring principle
A bistable reed switch that is magnetically actuated by the float in the
measuring chamber of the bypass level indicator.
Application range
Level detection
Design
Description of device
Limit switch attached adjacent to the measuring chamber of the
bypass level indicator.
Measuring accuracy
Hysteresis
28 mm / 1.1¨. For more data, refer to the "Optional limit switch"
section.
Operating conditions
Temperature
Temperature
Temperature
Temperature
Operating temperature
-40…+120°C / -40…+250°F, if there is insulation around the
measuring chamber, specify the temperature in the order. Do not put
insulation around the switch housing.
Storage
-40…+120°C / -40…+250°F
Pressure
Pressure
Pressure
Pressure
Operating pressure
Atmospheric pressure
Other conditions
Other conditions
Other conditions
Other conditions
Protection category
IP 66