Endress+Hauser LT5, Руководство по эксплуатации

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Operation LT5
76 Hauser
7 Operation
7.1 Using a check handle
A check handle is used in order to check that a gauge operates properly.
• Check gauge performance using the check handle only after filling the tank with
liquid.
• A check handle is not a float hoisting handle. Do not forcibly hoist the float using
the check handle.
• Using a hoist handle →  76
Check handle operation procedure
1. Push in the check handle at the bottom of LT.
2. Return it to the left side when it points to 4 to 5 mm (0.16 to 0.20) above the
indicator on the scale plate, and let go of the check handle.
3. Check the LT indicator.
This completes the check handle operation process.
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2.
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 62 Check handle
1 Check handle
7.2 Using a hoist handle
7.2.1 Hoist handle (for LT5-1)
The hoist handle is used to hoist up the float when you are not measuring the surface
level. This helps to add life to LT when utilized for tanks with a stirrer and/or for tanks
containing corrosive liquid.
• Never let go of the hoist handle when hoisting or lowering the float. Letting go of
the hoist handle may cause the float to fall and damage LT.
• Do not continue to turn the handle once the float reaches the liquid surface.
• When the handle reaches the "A" position in Figure 50, the float is freed from the
handle. Remove the handle during the measurement process.