CFP-TC-120 Datasheet, PDF (4/6 Pages) National Instruments Corporation – Thermocouple and RTD Modules for Compact FieldPoint

Thermocouple and RTD Modules for Compact FieldPoint
Specifications
Typical for -40 to 70 °C unless otherwise noted.
Input Characteristics
Number of inputs ................................ 8
ADC resolution.................................... 16 bits, 1 in 65,536
Type of ADC ........................................ Delta-sigma
Filters................................................... 50/60 Hz rejection
Excitation current
cFP-RTD-122 ................................... 0.25 mA
cFP-RTD-124 ................................... 2 mA
Data scaling options
cFP-TC-120...................................... Temperature (°C, °F, °K) or mV
cFP-RTD-12x.................................... Temperature (°C, °F, °K)
or resistance (Ω)
Update period, all channels
cFP-TC-125
Filter off ...................................... 0.22 s
Filter on ...................................... 0.99 s
cFP-TC-120...................................... 1.13 s
cFP-RTD-12x.................................... 1.08 s
Signal input bandwidth
cFP-TC-120...................................... 3 Hz
cFP-TC-125...................................... 12 Hz
Cold-junction accuracy cFP-TC-12x
With cFP-CB-3 connector block...... 0.25 °C typ, 0.5 °C max
Input impedance (cFP-TC-12x) ............ 20 MΩ
Input current (cFP-TC-12x)................... 35 nA typ, 140 nA max
Input noise .......................................... ±1 LSB_pp
Overvoltage protection
cFP-TC-120...................................... ±40 V
cFP-TC-125...................................... ±250 V
Common-mode voltage between channels referenced
to isolated ground
cFP-TC-125...................................... 250 V
cFP-TC-120...................................... 1 V
cFP-RTD-12x.................................... 2 V
Safety Isolation Voltage
Maximum safety isolation voltage .....
Channel-to-channel safety isolation...
Transient overvoltage..........................
250 V_rms, Installation Category II
(cFP-TC-12x only)
No isolation between channels
2,300 V_rms
Physical Characteristics
LED indicators
POWER (green) ...............................
READY (green) ................................
OPEN TC <0..7> (red)
(cFP-TC-12x)................................
Dimensions..........................................
Power on and self-test passed
Module configured and ready
Open or broken thermocouple
on channel
128 by 88 by 25 mm
(5.0 by 3.5 by 1.0 in.)
Weight
cFP-TC-120 ......................................
cFP-TC-125 ......................................
cFP-RTD-12x....................................
130 g (4.6 oz)
125 g (4.4 oz)
110 g (3.7 oz)
Power Requirement
Power from network module
cFP-TC-120 ......................................
cFP-TC-125 ......................................
350 mW
650 mW
Environmental
Operating temperature .......................
Storage temperature...........................
Relative humidity ................................
Maximum altitude...............................
Pollution degree..................................
-40 to 70 °C
-55 to 85 °C
(cFP-TC-125 -40 to 80 °C)
10 to 90%, noncondensing
2,000 m; at higher altitudes
the isolation voltage ratings
must be lowered
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Shock and Vibration
Operating vibration, random
(IEC 60068-2-64) .............................
Operating vibration, sinusoidal
(IEC 60068-2-6) ...............................
Operating shock
(IEC 60068-2-27) .............................
10 to 500 Hz, 5 g_rms
10 to 500 Hz, 5 g
50 g, 3 ms half sine,
18 shocks at 6 orientations;
30 g, 11 ms half sine,
18 shocks at 6 orientations
Safety and Compliance
Safety
This product is designed to meet the requirements of the following
standards of safety for electrical equipment for measurement, control,
and laboratory use:
• IEC 61010-1, EN 61010-1
• UL 61010-1, CSA 61010-1
Note: For UL and other safety certifications, refer to the product label or
visit ni.com/certification, search by model number or product line, and
click the appropriate link in the Certification column.
Electromagnetic Compatibility
This product meets the requirements of the following EMC standards for
electrical equipment for measurement, control, and laboratory use:
• EN 61326 (IEC 61326): Class A emissions; Industrial immunity
• EN 55011 (CISPR 11): Group 1, Class A emissions
• AS/NZS CISPR 11: Group 1, Class A emissions
• FCC 47 CFR Part 15B: Class A emissions
• ICES-001: Class A emissions
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