 The Endevco Model 133 is a three-channel, Piezoelectric
and ISOTRON Signal Conditioner that is manually or computer
programmable. Manual control is accomplished at the front
panel by means of a "Select Channel" push-button, three
(3) "Channel LEDs", one "Select Function" push-button,
seven "Function LEDs", a four character LED display, showing
the state of each function/channel and four "Edit" push-buttons
to change the entries in the LED display. There are three
LEDs used as fault status indicators for open/short at
the ISOTRON inputs. Computer control is accomplished using
the standard RS-232 port and optional Application Software.
There are two modes of operation, Normal and Programming/Setup.
Both modes of operation utilize the front panel LED Display.
In the Normal Mode, there are two states, Monitoring and
Non-Monitoring. In the Monitoring State the LED display
indicates the RMS valve (+/-10%) of the signal present
at the output of the selected channel. The Non-Monitoring
State turns off the LED display for lower noise applications
and to minimize power consumption. In the Programming
Mode, the unit is ready for manual programming of existing
channel setups. The unit will automatically return to
the Normal Mode of operation after 20 seconds of inactivity
of the front panel or after pressing the "Select Function"
push-button while the "Monitoring State" function LED
is flashing.
The rear panel contains an RJ-11 connector for the RS-232
serial communications port, an input power connector,
and on a per-channel basis, a BNC output connector, a
10-32 input connector for the PE input, and a BNC connector
for the ISOTRON input. Three Model 133 units may be installed
in a 19-inch rack mount adapter. The standard unit is
powered by 90-264 VAC, 50/60 Hz. The -1 option is powered
by 9 to 18 VDC, making it ideal for portable use in automobile
test applications.
Features:
• Three-Channel PE/ISOTRON® Signal Conditioner
• 100 kHz bandwidth (-3dB corner)
• Built-in 4-pole Butterworth high-pass filter with optional
corner frequencies
• Gain range 0 to 1000
• RS-232 serial interface
• 12 VDC power option
• Meets filter requirements of J211 and ISO 6487
• M1 option for velocity output and metric units
Endevco Model 133
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