Ametek Magnetrol B74 - Page 13

46-635 External Cage Displacer Actuated Liquid Level Switches
13
Specific Gravity
0.40 0.50 0.60 0.70 0.80 0.90 1.00
Model
Code
Process
Temp
°F (°C)
HL LL HL LL HL LL HL LL HL LL HL LL HL LL
B74
100
(
38)
1.30
(
33)
4.77
(
121)
2.17
(
55)
5.00
(
127)
2.73
(
69)
5.16
(
131)
3.13
(
80)
5.28
(
134)
3.44
(
87)
5.37
(
136)
3.67
(
93)
5.45
(
138)
3.86
(
98)
5.51
(
140)
200
(93)
1.24
(31)
4.70
(119)
2.13
(54)
4.95
(126)
2.70
(69)
5.11
(130)
3.11
(79)
5.24
(133)
3.42
(87)
5.34
(136)
3.66
(93)
5.41
(137)
3.85
(98)
5.48
(139)
300
(149)
1.18
(30)
4.62
(117)
2.09
(53)
4.88
(124)
2.67
(68)
5.06
(129)
3.09
(78)
5.19
(132)
3.40
(86)
5.30
(135)
3.64
(92)
5.38
(137)
3.84
(98)
5.45
(138)
H13
100
(38)
5.09
(129)
9.04
(230)
6.26
(159)
9.50
(241)
7.04
(179)
9.81
(249)
7.59
(193)
10.03
(255)
8.01
(203)
10.20
(259)
8.33
(212)
10.33
(262)
8.59
(218)
10.43
(265)
200
(93)
4.73
(120)
8.63
(219)
5.97
(152)
9.17
(233)
6.79
(172)
9.54
(242)
7.38
(187)
9.80
(249)
7.82
(199)
9.99
(254)
8.17
(208)
10.14
(258)
8.44
(214)
10.27
(261)
300
(149)
4.31
(109)
8.15
(207)
5.63
(143)
8.79
(223)
6.51
(165)
9.22
(234)
7.14
(181)
9.53
(242)
7.62
(194)
9.76
(248)
7.98
(203)
9.93
(252)
8.28
(210)
10.08
(256)
400
(204)
4.06
(103)
7.69
(195)
5.25
(133)
8.31
(211)
6.19
(157)
8.81
(224)
6.88
(175)
9.19
(233)
7.38
(187)
9.50
(241)
7.75
(197)
9.69
(246)
8.06
(205)
9.88
(251)
500
(260)
n/a n/a
4.81
(122)
7.88
(200)
5.81
(148)
8.44
(214)
6.56
(167)
8.88
(226)
7.06
(179)
9.19
(233)
7.50
(191)
9.44
(240)
7.88
(200)
9.63
(245)
H31
100
(38)
3.06
(78)
6.50
(165)
4.63
(118)
7.44
(189)
5.69
(145)
8.06
(205)
6.44
(164)
8.50
(216)
6.94
(176)
8.88
(226)
7.38
(187)
9.13
(232)
7.75
(197)
9.31
(236)
200
(93)
n/a n/a
4.06
(109)
6.81
(181)
5.19
(138)
7.56
(198)
6.00
(157)
8.06
(211)
6.56
(171)
8.44
(219)
7.06
(1.83)
8.75
(227)
7.44
(192)
9.00
(232)
300
(149)
n/a n/a
3.38
(86)
6.19
(157)
4.63
(118)
7.00
(178)
5.50
(140)
7.56
(192)
6.19
(157)
8.06
(205)
6.69
(170)
8.38
(213)
7.13
(181)
8.63
(219)
400
(204)
n/a n/a n/a n/a
4.06
(103)
6.38
(162)
5.00
(127)
7.06
(179)
5.75
(146)
7.56
(192)
6.31
(160)
7.94
(202)
6.75
(171)
8.25
(210)
500
(260)
n/a n/a n/a n/a
3.38
(86)
5.69
(145)
4.44
(113)
6.44
(164)
5.25
(133)
7.06
(179)
5.88
(149)
7.50
(191)
6.38
(162)
7.88
(200)
H51
100
(38)
2.75
(70)
6.25
(159)
4.31
(109)
7.19
(183)
5.38
(137)
7.75
(197)
6.13
(156)
8.19
(208)
6.63
(168)
8.56
(217)
7.06
(179)
8.81
(224)
7.44
(189)
9.00
(229)
200
(93)
n/a n/a
3.75
(95)
6.56
(167)
4.88
(124)
7.25
(184)
5.69
(145)
7.81
(198)
6.31
(160)
8.19
(208)
6.75
(171)
8.50
(216)
7.13
(181)
8.69
(221)
300
(149)
n/a n/a
3.13
(80)
5.88
(149)
4.38
(111)
6.69
(170)
5.25
(133)
7.31
(186)
5.88
(149)
7.75
(197)
6.44
(164)
8.13
(207)
6.81
(173)
8.38
(213)
400
(204)
n/a n/a n/a n/a
3.75
(95)
6.06
(154)
4.75
(121)
6.75
(171)
5.44
(138)
7.25
(184)
6.00
(152)
7.69
(195)
6.50
(165)
8.00
(203)
500
(260)
n/a n/a n/a n/a
3.13
(80)
5.38
(137)
4.19
(106)
6.19
(157)
4.94
(125)
6.75
(171)
5.56
(141)
7.19
(183)
6.06
(154)
7.56
(192)
4.3 Specifications
4
.3.1 Actuation Levels – Sealed Cage Design
inches (mm)
Levels ±0.25" (6 mm)