AD2061_15 Datasheet, PDF (1/2 Pages) Analog Devices – MICROPROCESSOR BASED AUTORANGING RTD THERMISTOR METER

W. ANALOG
W DEVICES
MicroprocessoBrasedAutoranging
RTD;ThermistorMeter
FEATURES
Temperature
Ranges: ^{- 328°F to + 1562°F}
-200°C to +850°C
Autoranging: 0.1° from -199.9° to + 199.9°; 1°2:200°
Sensor Selection (AD2060): RTD 1000 Platinum
= 0: 0.00385, 0.00390, 0.00392 or 22520 Thermistor
Universal Meter (AD2061) Sensor User Programmable
Switch Selectable Sensor Configuration: 2, 3 or 4-wire
OBSOLETE 7-Bit ASCII Character Serial Data Output
Automatic Self-Calibration for Gain, Offset, Excitation
and Sensor Linearization
Optional Linearized Analog Voltage Output:
1mV/degree
Optional Isolated 20mA ASCII Loop/TTL Serial Outputs
APPLICATIONS
Temperature Monitoring in Laboratory, Manufacturing
and Quality Control Environments
Process Control Temperature Measurements
Remote Data Logging
GENERAL DESCRIPTION
The AD2060/AD2061 are high performance single channel 3Vz
digit RTD/Thermistor meters that can measure temperature
accurately between - 328°Fand + l562°F(- 200°Cand + 850°C).
format with baud rate selection for easy interface to printers,
terminals and other peripherals. For remote data acquisition
applications, an optional isolated 2-wire 20mA ASCII serial
loop/TTL compatible interface is available. For driving recorders
or other analog instruments, an optional linearized analog voltage
output of lmV/degree is available. Selection of DCor OFscaling
is accessed by removing the front panel lens and setting the
selector switch to its proper position.
Both meters offer autoranging from O.loC/F to 1°C/F. The
The AD2060/AD2061 can be ordered in one of the following
AD2060 is supplied factory programmed for one of four sensor
power versions: l20V ac, 240V ac or +7.5V de to +28.0V de.
types: 1000 Platinum RTDs: a =0.00385, 0.00390, 0.00392 or
Input voltage protection of l80V peak (RTD short to ac line),
a 22520 Thermistor. The AD2061 is a universal meter in which _{common-mode voltage to l400V peak (ac version) with overrange}
the user selects one of the four sensor types via switch program- and open sensor detection is provided. These meters are rated
ming. The microprocessor based AD2060/AD2061 provides
for operation over the 0 to +40°C temperature range. Each
gain, offset and excitation error correction, linearization and °C/ AD2060/AD2061 is burned-in for 168 hours @ 50°C with on/off
of scaling in firmware. The AD2060/AD2061 display temperature power cycles for increased reliability. The AD2060/AD2061 are
information on large 0.56"(l4.3mm) high LEDs. Digital infor-
supplied in rugged molded plastic cases that meet UL94V-0 and
mation is provided in 7-bit standard ASCII character serial
DIN/NEMA standard dimensions.
'WIRE
RTO
OVER-
O^.PEN ^VOLTAGE
PROTECTION
SENSOR
DETECTION
DIGIT ADDRESS
INTEGRATOR
CONTROL
SElF-CALIBRATION CHANNEl SElECT
Figure 1. AD2060&AD2061 Functional Block Diagram
}
IOPTIONALI
Information furnished by Analog Devices is believed to be accurate
and reliable. However, no responsibility is assumed by Analog Devices
for its use; nor for any infringements of patents or other rights of third
parties which may result from its use. No license is granted by implica-
tion or otherwise under any patent or patent rights of Analog Devices.
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