Start-up – Safety instructions
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Thermal Mass Flowmeter FMT400-VTS, FMT400-VTCS (Sensyflow VT-S/VT-CS)
42/14-36 EN
6 Start-up – Safety instructions
Require-
ments
The device must be installed and the electrical signal lines must be connected prior to start-up.
6.1
Checking the installation
Prior to starting the device, make sure that is has been installed properly.
Follow the checklist:
6.2
Switching on
CAUTION
Prior to switching on the device make sure that all steps described in chapter 4 and chapter 5 have been
executed properly.
Check again that the operating voltage selected on the device is identical with the local mains voltage.
☞
After power-on, the device is automatically on.
Step
Check
1.
Is the unit securely fastened?
2.
Are the electrical signal, control and interface cable laid and connected correctly?
3.
Do the operating data of the existing measuring point correspond to the data stated on the
calibration certificate (e.g. medium, operating temperature, pressure, measuring range, ...)?
4.
Have the permissible ambient temperatures been kept?
5.
Is the pipe component or the weld-on adapter correctly installed (pay attention to the
flow direction!)?
6.
Have the recommended input and output lengths been complied with?
7.
Is the installation between detecting element and pipe component correctly done?
8.
Are the used sealings in their correct positions and in good condition?
9.
Have the electrical connections U
IN
(24 V) and I
OUT
(0/4...20mA) been made correctly?
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