Note!
The function of the miniature switch for the test mode is described on Page 17.
Functions of the operating and display elements
Operating and display element
(factory setting)
Description of function
Min./max. fail-safe setting
Maximum fail-safe:
The relay de-energises if the signal
rises above the limit value.
The red LED lights up.
Minimum fail-safe:
The relay de-energises if the signal
falls below the limit value.
The red LED lights up.
Full-scale setting
The full-scale setting is infinitely variable using this
potentiometer between 1...5 m/s.
Turning the potentiometer
The transition from a green LED which is off to a lighted
LED shows agreement between the momentary flow
velocity and the set full scale value, at which the current
output will be set to 20 mA.
Green LED
Lit:
When the actual flow rate is smaller
than the set full-scale value, i.e.
I = <20 mA.
Setting the limit value
A limit value as a % of the full-scale value is set using this
rotary switch. It is adjustable in 10 % steps from
10 % to 100 %.
Red LED
Lit:
Limit value reached
Flashing:
Error indication (see Page 17)
(1.5 Hz)
Potentiometer
Green LED
Limit value
switch
Red LED
4. Operation
Magphant
16
Hauser
Summary of Contents for magphant
Page 4: ...Magphant 4 Endress Hauser ...
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