MM 613F
Series FS4-3T
®
General Purpose
Liquid Flow Switch
INSTRUCTION MANUAL
MM-613F
SPECIFICATIONS
Maxim
Liquid
Ambient Temperature Range (T
um Liquid Pressure: 160 psi (11.3 kg/cm
Temperature Range (T
): 32
L
- 300°F (0 - 149°C)
): 32
S
- 120°F (0 - 49°C)
Electrical Enclosure Rating: NEMA Type 1 (IP 21)
Maximum Velocity: 10ft/sec (3M/sec)
3
Pipe Connection Thread Size:
ELECTRICAL
Motor Switch Rating (Amperes)
Voltage
120 VAC 7.4 44.4
240 VAC 3.7 22.2
Full Load Locked Rotor Pilot Duty
RATINGS
/4” or
1” NPT
125 VA at
120 or 240 VAC
50 or 60 cycles
2
)
2
FLOW RATES
Flow rates required to activate the flow switch
are shown in chart below.These values were
calculated using clean water in a horizontal pipe.
Flow Rates
Pipe
Model Size NPT Flow No Flow
Number in. (mm) Settings gpm (lpm) gpm (lpm)
FS4-3T1-
FS4-3T2-
FS4-3T3-
FS4-3T1-1 1 (25) Minimum 5 (18.9) 3.2 (12.1)
⁄
4
3
4
⁄
3
⁄
4
(20) Minimum 4.4 (16.7) 2.6 (9.8)
⁄
4
3
4
(20) Minimum 3.7 (14) 2.2 (8.3) 16.62
⁄
3
⁄
4
(20) Minimum 2 (7.6) 1.2 (4.5)
3
3
Factory or
Maximum 10.5 (39.7) 9.8 (37.1)
Factory or
Maximum 8.9 (33.7) 8.3 (31.4) (63)
Factory or
Maximum 4.5 (17) 4.1 (15.5)
Factory or
Maximum 11.5 (43.5) 11 (41.6)
Mode of Operation
Settings will vary when used to sense flow of other
fluids.
Max. Flow
Rate gpm
(lpm) w/o
Paddle Damage
Factory or
FS4-3T2-1 1 (25) Minimum 4.8 (18.1) 2.9 (11) 27
Maximum 10.1 (38.2) 9.4 (35.6) (102)
Factory or
FS4-3T3-1 1 (25) Minimum 2 (7.6) 1.2 (4.5)
Maximum 4.5 (17) 4.1 (15.5)
Values are ± 10%
NOTE: DO NOT USE LIQUID FLOW SWITCHES ON SYSTEMS
WITH FLOW VELOCITY GREATER THAN 10 FEET (3M)
PER SECOND.
NOTE: THIS PRODUCT IS NOT INTENDED FOR USE IN
POTABLE WATER APPLICATIONS.
3
Loading...