LM7 Installation, Operation Manual
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5
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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.
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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.
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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.
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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.
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.
figure 2
removal of protection cap
