DTP32HS DENSITOMETER
5
Instrument Location Requirements
To ensure reliable read switch activation, the instrument must sit on a reasonably flat, level,
and stable surface.
Strip Feeding Requirements
To ensure consistent strip readings, you must feed the strip into the instrument at a
continual pace (without pausing) and speed before it is taken in by the drive motor. More
specifically, a strip cannot be fed into the instrument too quickly (more than 7.2
inches/second or 183 mm/second), too slowly (less than 2.6 inches/second or 66
mm/second), or intermittently (pausing one or more times). If you are experiencing any
strip-feeding problems, observe how fast the motor is moving the strip (about 5.4
inches/second or 137 mm/second) and try to match the speed as closely as possible.
Before feeding a second strip or a second pass of a multi-pass strip into the instrument, you
must momentarily pause (approx. 3 seconds) to allow the instrument to process data from
the first measurement. The LED is not lit when the instrument is processing data.
Instrument LED Indicator
The LED indicates a variety of instrument operation conditions, such as calibration mode
and operation. Below is a complete list of conditions reported by the LED.
Operation Mode
• Solid Green—self-test passed and instrument is ready for use with defined strip.
• Slow Flashing Green—strip reading in progress (strip being read) or ready for next pass
(multi-pass strip definition).
• Fast Flashing Green—strip reading was attempted but the wrong strip was read, or strip
was skewed during reading.
• Slow Flashing Amber/Green—a configuration barcode was scanned and the instrument is
waiting for the 2
nd
or 3
rd
barcode pass.
• Fast Flashing Amber/Green—there was an error in recognizing a barcode or the
configuration failed. Reread the entire barcode, starting with the first pass.
Calibration Mode
• Slow Flashing Green—instrument calibration in progress (strip being read).
• Solid Green after Flashing Green—instrument calibration was successful and instrument
is ready for use.
• Fast Flashing Green—instrument calibration failed.
Error/Reset Mode
NOTE: When the instrument is first turned on, the motor runs, and the LED illuminates red while
performing self-tests. Self-tests are completed in approximately 2 to 3 seconds, at which time the LED
turns green and the motor stops under normal conditions.
• Fast Flashing Red—incorrect power supply attached. Verify correct 12-volt power supply
is used.
• Slow Flashing Red—a factory reset is in progress.
• Flashing Red/Green— the host firmware loader program is reprogramming the
instrument.
