HBK CB1010, Руководство по эксплуатации

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CANHEAD
CONFIGURATION
14
6 CONFIGURATION
Each CANHEAD base module has 10 measurement channels. When strain gage bridges
are connected, bridge excitation occurs at a carrier frequency of 600 Hz. Thermoelectric
voltage at the contact points and dc voltage drift are therefore irrelevant. 0.5, 1.0 and 2.5
volts are available as bridge excitation voltages.
CANHEADs designed for 10 channels each have an A/D‐converter (24 bits) per channel,
so that all measurement data recording is time‐synchronized.
The soldered fuse on the right next to the amplifier module is there to protect the device.
If none of the LEDs come on (see Page 34), check this fuse for conductivity (de‐ener­
gized).
If the fuse is faulty, the CANHEAD device must be sent to HBM Darmstadt.
The two LEDs correspond to the status LEDs on the back of the CANHEAD (see Fig. 7.7,
Page 34).
Locking the lid
The lid covering the base module housing is lockable; this provides mechanical protec­
tion and conforms with EMC requirements.
*)
Unlocking the lid:
turn in the opposite direction
Locking the lid
*)
Locking the lid
*)
Fig. 6.1 Locking and opening the base module