5 Installation
n
Users' qualifications: trained qualified
personnel or electrician, see
1.2 “Users' qualifications ” on page 10
CAUTION!
Incorrect metering
Possible consequence: Slight or minor inju‐
ries, material damage
–
Do not switch off the measuring system
during intermittent operation
–
Switch on the metering equipment
with a time delay if necessary
–
The water to be measured must always
contain a sufficient quantity of the
appropriate metering medium
–
Otherwise you will have to reckon
with longer run-in times
WARNING!
Connection to external devices
Possible consequence: Fatal or very
serious injuries
–
The measuring device/control device
connected must be galvanically
isolated from the sensor!
–
Do not allow the supply voltage to fall
below 16 V DC, even for short periods
of time
–
The power source must be able to
work with a minimum of 35 mA at
a minimum of 16 V DC
–
Too low a supply voltage may
result in an incorrect reading
The interface requirements are automatically
met when connecting to ProMinent control
devices.
Electrical Installation
1.
Turn the top section of the sensor a
quarter turn anticlockwise and remove it
2.
Loosen the clamping screw on the M12
connection and pass through the meas‐
uring line from the control device
A0102
Fig. 7: 2-lead connection
3.
Strip the ends of the cables, fit cable end
sleeves ( ⌀ max = 0.5 mm
2
) and connect
to the 2-lead connection:
1 = plus, 2 = minus
4.
Bring approx. 5 cm of the measuring wire
into the sensor and tighten the clamping
screw on the connection
5.
Push the top section of the sensor right
into the sensor shaft and turn clockwise
up to its stop
Installation
21
