961-20A0-010 Datasheet, PDF (23/36 Pages) Magnetrol International, Inc. – Ultrasonic Single and Dual Point Level Switches

3.4 Transducer Specifications
3.4.1 Model 9A1/9M1 Single Point
Transducer Material
316 Stainless Steel
316 Stainless Steel
Material Code (Section 3.9.2)
A^Œ, S, N, K
A^Œ, S, N, K
Hastelloy C-276
B
Hastelloy C-276
B
Monel
C
Kynar^®
R
CPVC
P
Operating Temperature Range
-40° to +325° F (-40° to +163° C)
-40° to +325° F (-40° to +163° C)
-40° to +325° F (-40° to +163° C)
-40° to +325° F (-40° to +163° C)
-40° to +325° F (-40° to +163° C)
-40° to +250° F (-40° to +121° C)
-40° to +180° F (-40° to +82° C)
3.4.2 Model 9A2/9M2 Dual Point
Maximum Pressure 
Actuation Length
2000 psi (138 bar)
1" and 2" (3 and 5 cm)
1500 psi (103 bar)
3" to 130" (6 to 330 cm)
2000 psi (138 bar)
1" and 2" (3 and 5 cm)
1500 psi (103 bar)
3" to 130" (6 to 330 cm)
1200 psi (83 bar)
1" to 130" (3 to 330 cm)
see graphs below
2" to 130" (5 to 330 cm)
see graphs below
2" to 130" (5 to 330 cm)
Transducer Material Material Code (Section 3.9.3) Operating Temperature Range Maximum Pressure 
Actuation Length
316 Stainless Steel A, K
-40° to +325° F (-40° to +163° C) 1500 psi (103 bar)
5" to 130" (13 to 330 cm)
CPVC
P
-40° to +180° F (-40° to +82° C) see graphs below
5" to 130" (13 to 330 cm)
Œ Model 9A1/9M1 Material Code “A” has a Cryogenic Transducer Option for -110° to +250° F (-80° to +120° C) operating temperature range
 Minimum pressure for all transducers is -10 psi (-0.7 bar)
Range with " NPT
Range with 150# flange
Range with PN16 flange
Kynar Transducer Ratings
300
250
200
150
100
50
0
-40 0 60 120 180 240
Temperature (°F)
30
25
20
15
10
5
0
-40
0 40 80 120
Temperature (°C)
CPVC Transducer Ratings
300
250
200
150
100
50
0
-40 0 40 80 120 160 200
Temperature (°F)
30
25
20
15
10
5
0
-40
0 40 80 120
Temperature (°C)
51-646 Echotel^® Model 961 & 962 Ultrasonic Level Switches
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