156268 Gems Sensors Inc, 156268 Datasheet - Page 2

• Manufacturer Part Number: 156268
• Description: Flow Switch
• Manufacturer: Gems Sensors Inc

Specifications of 156268

• Accuracy: +/-5%
• Operating Pressure Range: 200psig At 70°F
• 100psig Max. At 212°f: Circuitry
• Body Material: Brass
• Contact Current Ac Max: 300mA
• Mounting Type: Conduit
• Contact Voltage Ac Max: 110V
• Port Size: 0.5"
• Circuitry: SPDT
• Connection Size: 1/2"
• Features: Visual Flow
• Flow Range: 4 To 20 GPM
• Flow Rate Max: 20GPM (US)
• Rohs Compliant: No
• Accuracy %: 5%
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Switch Set Point Calibration With LED Signal (RFS Type)
With the unit installed in the line and power supplied, complete the following steps to
calibrate switch actuation point with proper flow rate. A small flat-blade screwdriver is
the only tool required.
1. Adjust liquid flow in the line to the rate at which switch actuation is desired.
2. Insert screwdriver into opening on backside of housing and fit blade into the
3. If LED is not illuminated, slowly turn screwdriver counterclockwise and stop as
4. If LED is illuminated, turn screwdriver clockwise until LED light goes out. Then,
* With use of Low Flow Adapter supplied. See Page F-8 for more information.
** Straight thread with O-ring seal.
Special Requirements:
GEMS caters to OEM needs with special configurations for potable water and
enhanced chemical capabilities. Consult factory for further details.
For higher pressure/temperature ratings, stainless face plates are available.
Consult factory.
How To Order
Specify Part Number based on desired body material, port size and input power rating.
– Stock Items.
Material
Polypropylene
potentiometer adjustment screw inside.
soon as LED illuminates.
slowly turn screwdriver counterclockwise and stop as soon as LED illuminates.
Stainless
Body
Brass
Steel
Port Size
9/16-18**
1.00˝
1.00˝
NPT
.25˝
.50˝
.25˝
.50˝
.75˝
.50˝
.75˝
Low Range*
1.5 to 12.0
1.5 to 12.0
1.5 to 12.0
0.1 to 1.0
0.1 to 1.0
0.1 to 1.0
–
–
–
–
Flow Ranges – GPM
Standard Range
Visit www.GemsSensors.com for most current information.
4.0 to 20.0
4.0 to 20.0
5.0 to 30.0
8.0 to 60.0
4.0 to 20.0
5.0 to 30.0
8.0 to 60.0
0.5 to 5.0
0.5 to 5.0
0.5 to 5.0
115 VAC
115 VAC
115 VAC
115 VAC
115 VAC
115 VAC
115 VAC
115 VAC
115 VAC
115 VAC
24 VDC
24 VDC
24 VDC
24 VDC
24 VDC
24 VDC
24 VDC
24 VDC
24 VDC
24 VDC
Power
Input
Number
155425
155876
155485
155886
156265
156266
156268
156269
180395
180396
181688
181689
165073
165074
165077
165078
181691
181692
181693
181694
Part
High Resolution Black Rotor
PPS composite. Each of the six rotor
arms is magnetized. A PTFE loaded
bushing ensures long life.
Pressure Drop-Typical
Standard
Flow Range
Units
Low Flow
Range Units
High Flow
Units
ILLUMINATED WHEN
CLOSED. AIDS FIELD
LED INDICATOR IS
RELAY SWITCH IS
CALIBRATION
12
RELIEF HOLE
12
1/2" STRAIN
9
6
3
0
9
6
3
0
9
6
3
0
0 1 2 3 4 5
0
0
.1 .2 .3 .4 .5 .6 .7 .8 .9
Ports
1/4˝
1/4˝ Ports
10
ADJUSTMENT
SET POINT
Ports
20 30 40 50 60 70 80 90
3/4˝
1.0
Flow Rate – GPM
Flow Rate – GPM
Flow Rate – GPM
2
10
3
4
1/2˝ Ports
CABLE
OUTPUT
15
5
1/2˝ Ports
RFS TYPE
1.0˝ Ports
10
20
100
25
15
110
F-3