AD2036_15 Datasheet, PDF (1/6 Pages) Analog Devices – 6 ChannelScannin DigitalThermomet

,. ANALOG
W DEVICES
6 ChanneSl canning
DigitalThermometer
I
AD2036 I
FEATURES
AutomaticlManual Scan of 6 Thermocouples (TCs)
External Channel Selection by BCD Code
J, K, or T Thermocouple
°c or of Readout
Self-Contained Linearization
Isolated Analog Input
Parallel BCD Output
1° Resolution, 0.1° Optional
AC Line or de Powered
OBSOLETE ^{+5Vdeat 10mAfor External Logic}
APPLICATIONS
Multi-Point Temperature Measurements for Remote
Data Acquisition and Data Logging
Temperature Monitoring in Design, Laboratory, Manufac-
turing and Quality Control
GENERAL DESCRIPTION
The AD2036 is a low cost 3~ digit, ac line or dc powered digital
readout temperatUre meter. Inputs for six thermocouples of
identical 7pes, either J, K, or T and calibrated temperatUre
ranges in C or of, make up a total of six available models.
Cycling on an internal clock, the AD2036 can continually
scan 6 input channels. Individual channels can be manually
selected via a small switch on the front. Channel selection
the Scan input held high will continually scan six channels.
When the Scan input is brought low the AD2036 will continue
to cycle and stop at channel O.When used with a printer the
channel select number in addition to the converted BCD value
can be recorded.
MANUAL CHANNEL SELECTION
A switch on the front enables the user to manually select an
individual thermocouple. As in the Auto/Scan mode, the
can also be made via an external BCD input at the rear
connector. A separate channel select output identifies the
selected channel independent of selection mode. The channel
select output together with the BCD Output provides com-
BCD Output of the selected channel and the channel number
are available. Selection of an individual TC channel automat-
ically disables Scan and external channel selection is over-
ridden. The Mode Output pin indicates when the switch is in
plete information for automatic data collection. The Isolated this condition~ On special order, meters can be supplied with
Parallel BCD Output provides an easy interface to conven-
card edge control for disabling the switch.
tional recording and controlling instruments. For applications
where there are high common mode voltages (CMV) present,
the AD2036 has as a standard featUre a floating opto iso-
lated analog front end that will withstand CMV's up to
2S0V rms.
The AD2036 displays readings on large 0.5" (13mm) high
LED displays. Both (+) and (-) polarities are indicated. Con-
EXTERNAL CHANNEL SELECTION
For remote control of channel selection the AD2036 pro-
vides an input for an external BCD code selection. This
featUre enables external BCD switch, automatic microproc-
essor or computer control.
III
trols are provided for blanking the display.
STANDARD PACKAGING
AUTO/SCAN
The AD2036, while in the Auto/Scan mode, will permit un-
attended scanning of all six input channels. The rate of the
channel select is 3.2 seconds, 1.6 seconds or 0.8 seconds.
The AD2036 can be used as a stand-alone instrument and with
The AD2036 is packaged in Analog Devices' ac line powered
DPM case which uses the same panel cutout as most other ac
line powered DPM's from other manufacturers. In addition,
the pin connections for the AD2036 converter board are the
same as for the AD2022, AD2009, AD2016 and DPM's avail-
able from several other manufactUrers.
For detailed information, contact factory.
DIGITALPANEL INSTRUMENTS VOL. /I, 7~35