PCB Piezotronics 088A, Инструкция по установке и эксплуатации, Страница: 8 / 14

3
Accelerometers install and connect according to the procedures described in the specific
sensor manual. Accelerometers utilized for impact testing include the 353 Series of
single axis accelerometers, and the 356 Series of triaxial accelerometers. For additional
information regarding sensors to meet your impact testing needs, feel free to contact the
PCB
®
Vibration Division customer service group by calling toll-free in the USA 888-
684-0013 (or outside the USA by calling 716-684-0001).
In general, sensors connect to the ICP
®
power unit at the jack labeled
“
XDCR
”
. The jack
labeled
“
SCOPE
”
is connected to the readout device, FFT analyzer, or computer. Please
consult the ICP
®
power unit operating guide for proper installation and operating
procedures.
4.0 Operation
Follow the below operation instructions:
1). Assemble the Modal Punch to the desired length using the supplied extension (if
required) and connector adaptor. Please reference the above installation procedures.
2). Choose the impact tip which corresponds to your excitation requirements. In general:
A. A stiffer tip is recommended for higher frequency response.
B. A softer tip is recommended for improved low frequency response.
3). Connect the Modal Punch to an ICP
®
power supply or equivalent with a coaxial cable
(not supplied). The Modal Punch requires a 10-32 microdot connector plug.
4). Connect the corresponding output cable (not supplied) from your ICP
®
power supply
to your readout device. This step is not necessary if ICP
®
power is built into your
readout device. Tighten the cable connectors securely by hand to ensure good electrical
contact.
5). Install accelerometer(s) in the desired measurement location(s), referring to the
appropriate operating guides for the accelerometer(s) and power supplies being used.
6). Switch power on and wait a minute for the sensor amplifier to turn on and the
coupling capacitor to fully charge.
7). Check the ICP
®
power unit meter for normal operation. Normal operation is indicated
when the meter pointer is pointing in the green area. If the meter reads in the red area,
look for a shorted cable or connection. If the meter pointer is pointing in the yellow area,
look for open cables or connections.
8). When all power unit meters indicate normal operation (meter pointer is pointing in the
green area), proceed with tests, following all sensor, power unit, and analyzer operating
instructions.