E+E Elektronik EE31, User Manual

Page: 7 / 40

7
Hardware
3.5 Mounting of model F (Wall mounting with rear
cable outlet)
For mounting template for metal and polycarbonate housing see page 5.
Positioning of boreholes top left to center line of probe:
metal housing: x = 28.5mm
(1.1”)
y = 37.5mm
(1.5”)
polycarbonate housing: x = 20.5mm
(0.8”)
y = 25.4mm
(1”)
Transmitters of the EE31-xFx series are designed for wall mounting.
Cable entry is from the rear side (e.g.: clean-room applications...).
Working range: -40...60°C
(-40...140°F)
with display: -20...50°C
(-4...122°F)
The transmitter must be mounted with the sensor probe pointing
downwards!
14
(0.6”)
12
(0.5”)
Installation of the probe directly in the process
For direct probe installation, a stop valve should be provided on both
sides of the probe insert. This allows the sensor probe to be removed for
maintenance and calibration without any problems.
If the sensor probe is installed in a pressure chamber, make sure that the
pressure in the chamber and the ambient pressure are in equilibrium
before you remove the probe.
The temperature during installation may not vary more than ±4°C
(±72°F)
from the operating temperature.
1st step:
Install the probe with the stop valves closed.
2nd step:
Insert the sensor probe into the process.
3rd step:
To ensure a secure installation of the probe, the lock nut must be
tightened to a defined torque of 30 Nm.
If no torque-spanner is available tighten the lock nut by hand
as far as possible. Continue to turn with an open-ended spanner ~50°.
fixed installation
(pressure tight up
to 20bar
(300psi)
)
stop valve stop valve
1/2” ISO or 1/2“ NPT
inside diameter
≥ 13 mm
(0.55”)
metal sealing ring