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CFP-RTD-122 Datasheet(PDF) 1 Page - National Instruments Corporation

Part # CFP-RTD-122
Description  Thermocouple and RTD Modules for Compact FieldPoint
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Manufacturer  NI [National Instruments Corporation]
Direct Link  http://www.NI.com
Logo NI - National Instruments Corporation

CFP-RTD-122 Datasheet(HTML) 1 Page - National Instruments Corporation

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Thermocouple and RTD Modules for Compact FieldPoint
Overview
The NI cFP-TC-12x and cFP-RTD-12x are versatile temperature input
modules for Compact FieldPoint used to measure thermocouples,
millivolt-level voltages, thermistors, and 2-, 3-, and 4-wire RTDs. They are
used in applications such as temperature chamber control, device testing,
and process control. Thermocouples are low-cost, flexible temperature
devices. RTD sensors are used in applications for acquiring temperatures
with high accuracy. Two- and 3-wire RTDs work well for applications with
short signal wires and low noise levels; 4-wire RTDs are well-suited for
applications with long signal wires or high noise levels. All of these I/O
modules include overranging and onboard diagnostics to ensure trouble-
free installation and maintenance. The modules measure and linearize
signals on board to return scaled values to your control or monitoring
software. The cFP-TC-12x and cFP-RTD-12x modules have NIST-traceable
calibration certificates (available upon request) to ensure accurate and
reliable analog measurements.
Compact FieldPoint
Compact FieldPoint is designed for industrial control applications that
perform advanced embedded control, data logging, headless operation,
and Ethernet connectivity. Compact FieldPoint, a rugged, reliable NI platform,
is designed for industrial and mobile environments with high shock,
vibration, and temperature extremes.
Isolation
The cFP-TC-125 provides 250 Vrms common-mode voltage protection
between channels, and all cFP-TC-12x and cFP-RTD-12x modules
feature optical bank isolation with 2,300 Vrms of breakdown isolation.
In addition, the cFP-TC-12x and cFP-RTD-12x offer double insulation for
up to 250 Vrms of operational isolation. You can safely use Compact
FieldPoint with the cFP-CB-1 or cFP-CB-3 connector block in applications
where hazardous voltages are present.
• 8 temperature inputs
• Thermocouple or millivolt
• 2-, 3-, or 4-wire RTD
• Built-in signal conditioning
between channels
• 250 V common-mode isolation
on cFP-TC-125
• 50 and 60 Hz noise rejection
• 16-bit resolution
• Input ranges configurable in software
for each channel
• 2,300 Vrms bank isolation for transient
overvoltage protection
• Hot-swappable with autoconfiguration
• -40 to 70 °C operating range
NI cFP-TC-120, NI cFP-TC-125, NI cFP-RTD-122, NI cFP-RTD-124
Module
Input
Channels
Resolution
(bits)
Input Type
Input Ranges Software-
Configurable per Channel
50/60 Hz
Noise Filter
All-Channel
Update Period
Common-Mode
Between Channels
Safety
Isolation
cFP-TC-120
8
16
Thermocouple
J,K,R,S,T,N,E, and B ± 25 mV, ±50 mV

1.13 s (0.88 Hz)
2,300 Vrms
bank isolation
Millivolt
±100 mV, -20 to 80 mV
cFP-TC-125
8
16
Thermocouple
J,K,R,S,T,N,E, and B

0.22 s (Filter Off)
0.99 s (Filter On)
250 Vrms
2,300 Vrms
bank isolation
Millivolt
-20 to 80 mV
cFP-RTD-122
8
16
2-, 3-wire RTD
Pt 100, Pt 1,000

1.08 s (0.93 Hz)
2,300 Vrms
bank isolation
Resistance
0 to 400, 0 to 4000 Ω
cFP-RTD-124
8
16
2-, 4-wire RTD
Pt 100

1.08 s (0.93 Hz)
2,300 Vrms
bank isolation
Resistance
0 to 400 Ω


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