Macnaught MX Series - Flow Meter Output Types Explained

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Flow meter Output Types
Pulse output
A 1 x Hall Effect Switch & 1 x Reed Switch MXD-AS
I Dual Reed Switches MXD-IS
J Dual Hall Effect Switches - Quadrature Pulse MXD-JS
K High Resolution Sensor MXD-KS
T High Temperature Sensor MXD-TS
Local Digital Display
D PR (LCD 12 mm Display) MXD-DS
E
PRA * (LCD 12 mm Display)
MXD-ES
F ER (LCD 17 mm Display) MXD-FS
G
ERA * (LCD 17 mm Display)
MXD-GS
H ERB (LCD 17 mm Display) MXD-HS
M
PRM * (LCD Blind 4 - 20 mA Display)
MXD-MS
Display MXD-DS MXD-ES MXD-FS MXD-GS MXD-HS MXD-MS
Instruction Manual MXL-INSTPR MXL-INSTPRA MS574 MS476 MS392 MXL-INSTPRM
Instruction manual for local displays to be seen separately. Part numbers as under:
* Analogue outputs are available as an auxiliary display signal by including ERA, PRA and PRM with the flow
meter. PRA and ERA display also output scalable pulse.
Reed Switch: Reed Switch is a 2-wire device which
triggers by magnet inside the rotors as they spin. To
maximise the life of the reed switch, the pulse board
comes equipped with a 1k8Ω current limiting resistor
in series.
Hall Effect Switch: Hall Effect switch is a 3-wire
device which triggers by south pole of the magnet
inside the rotors as they spin. This switch is NPN
type. The switch circuit is equipped with a 4k7Ω pull
-up resistor between signal and supply.
Reed Switch
Hall Effect Switch