The SMT 4000D is a microprocessor
based signal processor designed to process signals from the SMT high
speed AC LVDT. Thickness readings are presented to the operator through
the six digit display. Material variation from desired 
thickness
is also displayed through the large analog swing meter mounted above
the display.
An on-board message display assists the operator to enter nominal thickness,
upper and lower thickness limits, data collection parameters, and setting
the analog meter range. During calibration, the technician is prompted
for samples and advised of errors through plain english messages.
The on-board data classifier continuously monitors material thickness
and indicates out-of-tolerance conditions through LED's mounted on the
front of the amplifier. Digital signals are also routed to the rear
panel for connection to an optional dry contact relay interface.
The amplifier has a built in data collection package. Data is collected
through an operator adjustable time base. After collection is complete,
a histogram and statistical calculation can be printed based on the
data collected
- Continuous digital display of actual thickness
- Analog indication of thickness deviation from desired thickness
- Built-in high/low limit classifier with optional dry contact relay output
- On-board message display allows for easy setup and calibration
- Simple three step calibration sequence with no tools required Built-in data collection package
- Metric mode of operation Built-in RS232-C communications port
- Built-in analog output
The SMT 4000D gage amplifier makes a wide range of data available through the serial port. The programmability of applications like Microsoft Excel and Word make it possible to automate setup and data collection using the serial port. The SMT 4000D Amplifier Driver allows 32 bit Windows programs to gather data and set up one or more gage amplifiers. The package includes:
-
SMT serial communication library
-
Sample spreadsheet for Microsoft Excel which takes a reading from the gage each second
-
Application note on the sample spreadsheet
-
Source code for Visual Basic or VBA
-
Two hours of phone support
System Requirements:
-
A 32 bit Windows operating system (95, NT, etc.)
-
A serial port connected to each 4000D amplifier. Typically, you will need a serial cable, a "null modem" adapter, and a female-female gender changer to make the connection.
-
Microsoft Excel version 7.0 or later (e.g., from the Microsoft Office 95 or Office 97 suite) is required to run the sample spreadsheet documented in the application note.
Measurement Range Available:
+ 0.080in or + 2mm
Response Time: adjustable between 1.6ms - 409.6ms
Analog Output: + 5v
Meter Ranges: adjustable + 0.3in - + 0.00001 in
Power Requirements: 110 - 220VAC at 47 - 65HZ
