Conditions On Site - HBM CMD Serie Bedienungsanleitung

5

Conditions on site

CMD
Important
Insulation resistance is crucial for piezoelectric transduc­
ers; it should be greater than 10
To obtain this value, all the plug connections have to be
kept spotlessly clean. Positive or negative output voltage
signal drift indicates insufficient insulation resistance.
Clean the plug connector contacts with a clean, lint‐free
cloth (e.g. cleaning pad, HBM ordering number
1-8402.0026) and isopropanol, such as IPA200 from RS
Components. Cleaning agents used to clean SG measur­
ing points are not suitable!
Also see Chapter 14 "Tips for piezoelectric measure­
ment technology".
Notice
The degree of protection per DIN EN 60529 is comply,
when all cables are connected and any unused connec­
tions are fitted with protective caps.
Without protective caps, the device can also be damaged
before the boundary conditions of the particular protec­
tion class are reached.
Important
As specified in EN 61326-1, Section 3.6, the connecting
cables of the charge amplifier must be no longer than 30
m (when laid within a building) and must not leave the
building.
A2781-3.1 HBM: public
Conditions on site
13
ohms.
15