
Dimensions of 2 EL sensors for very low to
medium concs., power plants, ultra-pure water
1/26
2EL sensors, fittings, accessories
Screw connector for
welding on, VA:
M54445-A25
68
50
40
90
11
185
2EL sensor with pin electrodes
7MA2000-8DD
Rd 78 x 1/6
DIN 405
Ø 55
Ø 50
Rd 78 x 1/6
DIN 405
Rd 78 x 1/6
DIN 405
85
85
85
1
2EL sensor, compact
7MA2000-8DS
Ø 12
Rd 78 x 1/6
DIN 405
85
85
Ø54
Rd 78 x 1/6
DIN 405
R 3/4
150
170
Flow fitting, VA
C74451-A1789-A21
Internal Ø 50
R 3/4
22
Ø 92
Rd 78 x 1/6
DIN 405
14
14
Union nut, VA
M54445-A23
Tapered seal, VA
M54445-A27
T-piece, VA
M54445-A21
Ø 30
230
Pg 21
Pg 11
Mounting depth 118
Rd 78 x 1/6
22
2EL sensor with
concentric electrodes
7MA2000-8AB, -8BB, -8CB
Ø 24
Ø 31
Ø54
Rd 78 x 1/6
DIN 405
3/8–18NPT
3/8–18NPT
150
170
Flow fitting, VA
C74451-A1789-A1
170
Ø 70
R 3/4
Flow fitting, PP
M54145-A92
Union nut, VA
M54445-A23
Electrode holder, PP
C74451-A1789-B1
150
Mounting part
C74451-A1789-D1
R 3/4
Rd 78 x 1/6
DIN 405
Flow fitting, PP
C74451-A1789-A3
3/8–18NPT
Ø 62
Rd 78 x 1/6
DIN 405
165
150
22
Blanking plug
3/8–18NPT
3/8–18NPT
Electrode holder, PP
C74451-A1789-B1
65
60
Ø 13
Union nut
42
Internal Ø50
Int. Ø 50
Ø 50
Ø 50
Int. Ø 50
Pg 13.5
Four-way junction, VA
M54445-A20
Cable, 5 m long
Ø 68
35
Ø 112
Ø 90
Ø 67,5
Ø 50
142
162
Ø 54
3/8–18NPT
Flow fitting, VA
C74451-A1789-A2
3/8–18NPT
Ø 30
Pg 21Pg 11
230
Ø 112
125
Mounting depth 118
2EL sensor with
concentric electrodes
7MA2000–8AA, -8BA, -8CA
Mounting part
C74451–A1789–D1
Internal Ø 50
Ø 15
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