Reed Switch Configurations; Wiring Configurations - Badger Meter Hedland Flow-Alert User Manual

Reed Switch Configurations

Most units are equipped with an enclosure and a 15 ft (457 m) length of 4-wire #25 AWG
type, PVC jacketed cable with a 4-pin Hirschmann connector
Certain 1/4 in or SAE 6 meters with lower flow ranges are equipped with a strap housing
For safe operation of the reed switch, do not exceed the maximum wattage for that switch
For example, the normally open (NO) reed switch has a maximum power rating of 10
Watts If the switch is to operate at 24V DC, the maximum current is the wattage divided by
the voltage
W 10
I = = = 0.417A
E 24
Exceeding the maximum power rating for a particular switch will damage it
Reed Switch Cable Specifications
Single Switch (Strap Version): 2-Wire #24 AWG with Flying Leads
Color
Yellow
Green and Blue
Single or Dual Switch: 4-Wire #25 AWG, PVC Jacketed Cable with Hirschmann Connector
Color
Red (Pin 1)
Black (Pin 2)
Green (Pin 3)
White (Pin 4)

Wiring Configurations

Load
Load turns ON when ow exceeds setpoint.
Relay
Coil
R
1
Load
Load turns OFF when ow exceeds setpoint.
April 2017
Normally Open (NO)
Normally Closed (NC)
Table 3: Reed switch (strap version) single switch specifications
Wire Assignment
Single Switch
X
X
Not Used
Not Used
Table 4: Configuration of reed switch with enclosure
BLACK WHITE
Flow-Alert
Figure 3: Loads within contact rating
WHITE
BLACK
Flow-Alert
R1
Figure 4: Loads outside contact rating
VAM-UM-00646-EN-04
Function
Dual Switch
Switch 1
Decreasing Switch
Switch 2
Increasing Switch
Load turns OFF when ow exceeds setpoint.
Relay
Load turns ON when ow exceeds setpoint.
Electrical Connections
Wire Length
400 in (10160 cm)
180 in (45720 mm)
Cable Length
15 ft (457 m)
WHITE
RED
Load
Flow-Alert
Coil
BLACK WHITE
R
1
Flow-Alert
Load
R1
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