KROHNE BM 26 A EN - Manual (Page 17)

Installation and Operating Instructions BM 26 A 17
Density and operating temperature limits
Float
type
Density and operating temperature limits
No. Min. density of product Product temperature
Min. Max.
kg/l lbs/
ft 3
°C °F °C °F
BM 26 A / Standard versions without approvals
1 0.82
51.19 – 200 – 325 300 570
2 0.55 34.34 – 200 – 325 300 570
3 0.50 31.21 – 200 – 325 300 570
4 0.60 37.46 – 200 – 325 300 570
Instruments or approved for use in Ex hazardous zones
BM 26 A / ATEX (local indicator with electrical equipment)
1
0.82 51.19 – 40 – 40 70 … 195* 160…380*
2 0.55 34.34 – 40 – 40 70 … 195* 160…380*
3 0.50 31.21 – 40 – 40 70 … 195* 160…380*
4 0.60 37.46 – 40 – 40 70 … 195* 160…380*
* The product temperature depends on the BM 26 A ATEX temperature class (T3 … T6). See
section 7.1 for further information.
Operating pressure limits
Float type
BM 26 A
Operating pressure limits of the float
No. Max. allowable operating pressure
At 20°C / 70°F At 100°C / 210°F At 200°C / 390°F At 300°C / 570°F
bar psig bar psig bar psig bar psig
Standard versions without approvals
1
55 800 41 600 37 535 32 465
2 23 335 12 175 10 145 9 130
3 23 335 13 190 10 145 8 115
4 55 800 31 450 24 350 19 275
Instruments approved for use in Zone 0
BM 26 A/ATEX (local indicator with electrical equipment)
1
55 800 41 600 – – – –
2 23 335 12 175 – – – –
3 23 335 13 190 – – – –
4 55 800 31 450 – – – –
Important note
Float test pressure is tested according to pressure equipment directive 97/23/EC and official
approvals.