Installation In A Pocket; Installing The Integrator; Functional Testing - Diehl Metering Sharky 774 Instructions De Montage

3.3.2 Installation in a pocket

In case of new installations, MID heat meter or temperature sensors for
nominal sizes DN25 or smaller must only be installed directly immersed.
The objective of a symmetrical measure set-up with higher measuring
accuracy is thus supported.

3.4 Installing the integrator

Pay attention to sufficient distance between integrator and pos-
sible electromagnetic sources of interference (switches, electric
motors, fluorescent lamp, etc.) during installation.
At the flow sensor (see fig. VI-A)
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Installation at medium temperature < 90°C and at T
With spacer (see fig. VI-B)
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Installation at medium temperature > 90°C and at T

3.5 Functional testing

After installation of the meter and putting it into operation, the functional
testing can be performed.
Proceed as follows:
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Open the stop valves
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Check system for tightness
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Bleed the system till the flow indication is stable. Adjust the system by
means of the flow indication
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After a short while the message "E - 7" disappears in the display.
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Press the push button next to the display and check the displays for
temperature and flow for plausibility.
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Attach tampering protection at the integrator and the temperature
sensors.
ƒ
Read and note meter data for energy, volume and serial number.
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