450k鈩?/div>
240VAC
ANSI/IEEE C37.90.1
0.25mA
鹵0.02藲C/惟鹿
1500Vrms max
ANSI/IEEE C37.90.1
120dB
70dB at 60Hz
See Ordering Information on Page 2
鹵20ppm/潞C
鹵75ppm/潞C
250碌Vrms
3Hz
150ms
0 to +5V
Continuous Short to Ground
ANSI/IEEE C37.90.1
鹵0.5潞C
鹵1.5潞C
+5VDC 鹵5%
30mA
鹵25ppm/%
1.11" 脳 1.65" 脳 0.40"
(28.1mm 脳 41.9mm 脳 10.2mm)
-40潞C to +85潞C
-40潞C to +85潞C
0 to 95% Noncondensing
Input Protection
Sensor Excitation Current
Lead Resistance Effect
CMV, Input to Output
Transient, Input to Output
CMR (50Hz or 60Hz)
NMR
Accuracy
Stability
Noise
DESCRIPTION
DI-8B modules are an optimal solution
for monitoring real-world process signals
and providing high level signals to a data
acquisition system. Each DI-8B47 module
isolates, 鏗乴ters, ampli鏗乪s, and linearizes a
single channel of temperature input from
a thermocouple and provides an analog
voltage output.
Linearization is accomplished using a four
breakpoint piecewise linear approximation.
The DI-8B47 can interface to industry
standard thermocouple type J, K, and T and
has an output signal of 0V to +5V. Each
module is cold-junction compensated to
correct for parasitic thermocouples formed
by the thermocouple wire and screw termi-
nals on the mounting backpanel. Upscale
open thermocouple detect is provided by
an internal pull-up resistor.
Signal 鏗乴tering is accomplished with a
three-pole 鏗乴ter optimized for time and
frequency response which provides 70dB
of normal-mode-rejection at 60Hz. One
pole of this 鏗乴ter is on the 鏗乪ld side of the
isolation barrier for anti-aliasing, and the
other two are on the system side.
A special input circuit on the DI-8B47
module provides protection against ac-
cidental connection of power-line voltages
up to 240VAC.
The modules are designed for installation
in Class I, Division 2 hazardous locations
and have a high level of immunity to envi-
ronmental noise.
Offset
Gain
Output, 100kHz
Bandwidth, -3dB
Response Time, 90% Span
Output Range
Output Protection
Transient
Cold Junction Compensation
Accuracy, 25潞C
Accuracy, -40潞C to +85潞C
Power Supply Voltage
Power Supply Current
Power Supply Sensitivity
Mechanical Dimensions
Environmental
Operating Temperature
Storage Temperature
Relative Humidity
DATAQ Instruments, Inc. 鈥?241 Springside Drive 鈥?Akron, Ohio 44333 鈥?Tel: 330-668-1444 鈥?Email: support@dataq.com 鈥?www.dataq.com
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