Instruction Manual

tina88e1-b (2014-09)

3.2 Power Connection

Make sure the vacuum connection is properly made

(→  17).

DANGER

The gauge may only be connected to power sup-

plies, instruments or control devices that conform

to the requirements of a protective extra-low

voltage (PELV). The connection to the gauge has

to be fused. Grounding concept →  25.

Ground loops, differences of potential, or EMC problems

may affect the measurement signal. For optimum signal

quality, please do observe the following notes:

• Use an overall metal braided shielded cable. The

connector must have a metal case.

• Connect the cable shield to ground at one side via the

connector case. Make sure the connector case has

direct contact to the cable's shield on its whole cir-

cumference. Do not connect the other side of the

shield.

• Connect the supply common with protective ground

directly at the power.

• Use differential measurement input (signal common

and supply common conducted separately).

• Potential difference between supply common and

housing ≤18 V (overvoltage protection).