940-111E-004 Datasheet, PDF (6/8 Pages) Magnetrol International, Inc. – Echotel® Model 940/941

3.0 Reference Information
3.1 Specifications
3.1.1 Physical
Inches (mm)
3/4" NPT
3.9 (99)
3/4" NPT
4.13 (105)
3/4" NPT
3.9 (99)
Actuation length
for Tri-Clamp fitting
Actuation length
for NPT process
connection
0.25 (6)
∅ .875 (22)
Model 940/941 with Hygienic flange
0.25 (6)
∅ .875 (22)
Model 940/941 with ³â„4" NPT
Actuation length
for ANSI flange
0.25 (6)
∅ .875 (22)
Model 940/941 with ANSI Flange
3.1.2 Electrical
Power Supply:
Power Consumption:
Signal Output:
Cabling:
Repeatability:
Response Time:
Model 940:
Model 941:
12–35 VDC
Less than 1 Watt
SPDT relay, 1 amp @ 30 VDC, 0.5 amp @ 125 VDC, 0.5 amp @ 150 VAC
Dry Gap: 8 mA (±1 mA)
Wet Gap: 16 mA (±1 mA)
18" (457 mm) flying leads of 18 AWG wires
0.078" (2 millimeters)
1_{⁄2 second typical}
3.1.3 Environmental
Ambient Temperature:
Process Temperature:
Maximum Pressure:
Ingress Protection:
Shock
Vibration
-40° to +185° F (-40° to +85° C)
-40° to +185° F (-40° to +85° C)
2000 psig (138 bar) for 1" (3 cm) and 2" (5 cm) transducers
1500 psig (103 bar) for transducers longer than 2" (5 cm)
Type 4X (IP66)
ANSI/ISA-S71.03 Class SA1
ANSI/ISA-S71.03 Class VC2
3.2 Replacement Parts
Model 940 and 941 units have no replacement parts. A new unit must be ordered. Consult factory.
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51-647 Echotel Model 940 & 941 Ultrasonic Level Switches