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On all three models, the front panel
digital pushbutton emissivity control
assures precise setting of the target
emissivity. If process parameters
are changed, this digital control
enables the operator to accurately
return to the previous settings.
A variety of signal processing options
is available (one per unit) such as
peak (or valley) sense and hold
(when the process temperature
sharply rises and falls), signal
averaging (to smooth out unwanted
variations in the temperature
measurement), sample and hold (to
sample a temperature and hold it for
a specified time), and fast rise
variable decay (which is similar to
peak and hold, but has a variable
decay time). These signal processing
options are adjustable by a front
panel variable control adjustment.
The DP1521 has four independent
input channels with a front panel
selector switch, each channel having
its own1 mV/degree output as well as
its own emissivity adjustment.
The DP1531 is a high speed single
channel monitor suitable for use on
any high speed event application
utilizing the 20 microseconds time
constant (0 to 63.2%). This system
utilizes an auto-zero circuit (with
shutter built into the detector head)
to zero out any system drift.
The DP1511 or DP1521 thermal
monitoring system consists of a fiber
optic assembly and detector head,
(or line-of-sight detector head),
connecting cable, and meter. The
DP1511 and DP1521 monitors are
used with either the OS1512 infrared
or OS1513 fiber optic sensors.
The DP1531 high speed monitor is
used with either the OS1532 infrared
or OS1533 fiber optic sensors.
DP1511 single input benchtop monitor
shown with OS1512 infrared sensor.
DP1521 4-channel 48 cm (19") rackmount
monitor shown with OS1512 infrared sensor.
DP1531 single input 48 cm (19") rackmount
high speed monitor shown with OS1533
fiber optic sensor.