Emerson Mobrey Series, Functional Safety Manual

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Level Switches Certified to IEC 61508
April 2017
Manual Supplement
M310, Rev BA
Level Switches Certified to IEC 61508
18
Table B-1. Level Switches for General Purpose Applications (Stainless Steel Wet-side)
Model Product description
S Switch
Flange (head) Flange (head)
36 Mobrey A 431 EN 1092-1 PN 16 (DN 125)
190 Mobrey A 417 EN 1092-1 DN 65 PN 40 (DN 65)
440 3 in. ASME B16.5 Class 150 RF 418 EN 1092-1 PN 40 (DN 80)
441 4 in. ASME B16.5 Class 150 RF 419 EN 1092-1 PN 40 (DN 100)
424 3 in. ASME B16.5 Class 300 RF 433 EN 1092-1 PN 40 (DN 125)
425 4 in. ASME B16.5 Class 300 RF 434 EN 1092-1 PN 40 (DN 150)
489 3 in. ASME B16.5 Class 600 RF 488 EN 1092-1 PN 63 (DN 80)
490 3 in. ASME B16.5 Class 900 RF 435 EN 1092-1 PN 63 (DN 100)
428 EN 1092-1 PN 16 (DN 65) 436 EN 1092-1 PN 63 (DN 125)
429 EN 1092-1 PN 16 (DN 80) 437 EN 1092-1 PN 63 (DN 150)
430 EN 1092-1 PN 16 (DN 100)
Switch mechanism
D Electrical: 2 independent Single Pole Single Throw (SPST) contact sets
P As Type D but with gold plated contacts
D6 Electrical: 2 independent circuits of double pole changeover contact sets
P6 As Type D6 but with gold plated contacts
H6 As Type D6 but with gold plated contacts and hermetically sealed moving parts
B6 As Type H6 but approved for Zone 2 areas
Enclosure/housing
A Aluminum alloy
Float
F84 General purpose e.g. high/low alarm, 316 SST
F93 Shrouded for dirty liquids, 316 SST
F96 General purpose e.g. high/low alarm, 316 SST
F98 General purpose e.g. high/low alarm, 316 SST
F185 General purpose e.g. high/low alarm, Alloy 400
F104/+ Cranked arm: horizontal or vertical, 316 SST
F106 General purpose e.g. high/low alarm, 316 SST
F107 General purpose e.g. high/low alarm, 316 SST
Typical Model Number: S 36 D A / F84