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940-111E-001 Datasheet, PDF (3/4 Pages) Magnetrol International, Inc. – Echotel® Model 940/941 Ultrasonic Level Switch
SPECIFICATIONS
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
Actuation length
for ANSI flange
0.25 (6)
∅ .875 (22)
Model 940/941 with Tri-Clamp fitting
0.25 (6)
∅ .875 (22)
Model 940/941 with 3⁄4" NPT
0.25 (6)
∅ .875 (22)
Model 940/941 with ANSI flange
MODEL NUMBER
Models available for quick shipment, usually within one week after factory
receipt of a purchase order, through the Expedite Ship Plan (ESP)
BASIC MODEL NUMBER
940 Low cost compact ultrasonic level switch with SPDT relay output
941 Low cost compact ultrasonic level switch with current shift output
AGENCY APPROVAL
1 FM/CSA Intrinsically Safe & Non-Incendive (Model 941 only)
7 FM/CSA Non-Incendive (Model 940 only)
PROCESS CONNECTIONS
11 3⁄4" NPT
22 1" BSP (G1)*
23 1" 150# ANSI RF flange*
33 1.5" 150# ANSI RF flange*
43 2" 150# ANSI RF flange*
3T 1"/1.5" Tri-Clamp 16 AMP fitting*
4T 2" Tri-Clamp 16 AMP fitting*
* Minimum actuation length of 2 inches or 5 centimeters
ACTUATION UNITS
E English (inches)
M Metric (centimeters)
ACTUATION LENGTH
1 to 100 inches (Example: 4 inches = 004)
3 to 250 centimeters (Example: 6 cm = 006)
Available ESP length = 1" (001)
94
Note: Optional NEMA 4 cast aluminum junction
box assembly 052-7012-XXX is available
from the factory.
3