LM3 Installation, Operation Manual
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5
!
When placing the device into operation or after maintenance work, the probe has to be submerged slowly into
the medium! A rough immersion into the medium can damage or destroy the diaphragm.
!
If there is any danger of damage by lightning or overpressure when the device is installed outdoor, we suggest
putting a sufficiently dimensioned overpressure protection between the supply or switch cabinet and the device
Installation steps for flange version
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Carefully remove the pressure measuring device from the package and dispose of the package properly.
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Please ensure that the mounting thread is clean and free of damage.
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Check to ensure that the O-ring fits properly in the groove.
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Screw in the mounting thread of the transmitter in the transmitter flange.
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Next, tighten it by an open-end wrench. (approx. 25 Nm)
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Install the flange according to your demands. If a new transmitter flange is needed, it can be ordered from
Winters Instruments
Removing the protection cap (if existing)
For the protection of the diaphragm, some of the probes have a plugged-on protection cap. If the device shall be
used in high-viscosity media such as sludge, a removal of the cap before start-up is necessary. Thus, the sensor
becomes flush and the medium will attain quickly to the diaphragm.
•
If it is necessary for your application to remove the protection cap, this has to be done with utmost care. To
prevent a damage of the diaphragm, please follow these instructions.
Removal by hand
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Hold the probe in a way that the protection cap points upwards.
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Hold the probe with one hand on the sensor section (1).
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Remove the protection cap (2) with the other hand.
Removal with a tool (recommended)
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Hold the probe in a way that the protection cap points upwards.
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Slide a small tool such as a screwdriver (8) straight through two opposite drill holes in the protective cap (2).
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Lever it off by moving up the handle of the screwdriver.
•
Make sure that the sensor (7) under the protection cap will not be damaged!
3.5 Cable protection (optional)
On order, the probe has been delivered with cable protection; if the device has optionally been prepared for
mounting with stainless steel or PVC pipe, a suitable cable protection has to be mounted by the customer.
•
The probe must be installed in such a way that rubbing or impact of the device, e. g. against a tank wall, is
prevented. It is also important to consider the operating conditions such as flow conditions.
Electrical
Installation
Y WARNING!
Install the device only when currentless!
Establish the electrical connection of the device according to the technical data shown on the manufacturing label,
the following table and the wiring diagram.
figure 2
removal of protection cap
Y DANGER!
The transmitter must not be installed in potentially explosive atmosphere requiring category 1 status.
Y WARNING!
Input supply to pressure transmitter must be SELV (or class 2). Source in accordance with CSA 61010-1-04.