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Temperature, rtds, How to compare calibrators based on specifications, Temperature, thermocouples – Atec Fluke-740 Series User Manual

Page 9

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Temperature Measurement and

Simulation Specifications

Temperature, RTDs

Accuracy

Measure

Source

Type and range

1 year

2 years

1 year

2 years

10 Cu (427)
-100 to 0 °C

2 °C

2 °C

1 °C

1 °C

0 to 260 °C

2 °C

2 °C

1 °C

1 °C

100 Pt (3916)
-200 to -190 °C

0.3 °C

0.4 °C

0.3 °C

0.4 °C

-190 to 0 °C

0.3 °C

0.4 °C

0.1 °C

0.2 °C

0 to 630 °C

0.5 °C

0.8 °C

0.2 °C

0.4 °C

100 Pt (3926)
-200 to 0 °C

0.3 °C

0.4 °C

0.1 °C

0.2 °C

0 to 630 °C

0.5 °C

0.8 °C

0.2 °C

0.4 °C

100 Pt (385)
-200 to 0 °C

0.3 °C

0.5 °C

0.1 °C

0.2 °C

0 to 400 °C

0.5 °C

0.8 °C

0.2 °C

0.4 °C

400 to 800 °C

0.8 °C

1.0 °C

0.4 °C

0.5 °C

200 Pt (385)
-200 to 0 °C

0.3 °C

0.5 °C

0.1 °C

0.2 °C

0 to 400 °C

0.5 °C

0.8 °C

0.2 °C

0.4 °C

400 to 630 °C

0.8 °C

1.0 °C

0.4 °C

0.5 °C

500 Pt (385)
-200 to 0 °C

0.3 °C

0.5 °C

0.1 °C

0.2 °C

0 to 400 °C

0.5 °C

0.8 °C

0.2 °C

0.4 °C

400 to 630 °C

0.8 °C

1.0 °C

0.4 °C

0.5 °C

1000 Pt (385)
-200 to 0 °C

0.3 °C

0.5 °C

0.1 °C

0.2 °C

0 to 400 °C

0.5 °C

0.8 °C

0.2 °C

0.4 °C

400 to 630 °C

0.8 °C

1.0 °C

0.4 °C

0.5 °C

120 Ni (672)
-80 to 260 °C

0.3 °C

0.4 °C

0.1 °C

0.2 °C

For 2-wire and 3-wire measurements add 0.4 °C
Sensor inaccuracies not included

Resolution: 0.1 °C, except 1 °C for 10 Ω Cu
Temperature coefficient: 0.02 °C/°C from -10 °C to 18 °C and
28 °C to 50 °C
Maximum input voltage: 30 V dc
Maximum input current for RTD Source function:

10 Ω RTD

8 mA dc

100, 120 Ω RTDs

8 mA dc*

200, 500, 1000 Ω RTDs

1 mA dc

741B*, 743B*, 744: Addresses pulsed transmitters and PLCs with
pulses as short as 1 ms

* For 741B serial number 7935XXXX and greater.

For 743B serial number 7940XXXX and greater.
Otherwise, 3 mA and 100 ms.

Analyzing specifications can be
complex. To get a true picture of
calibrator performance, you should be
aware of the key components of a
specification and how to interpret
them. Specifications must be carefully
considered when comparing calibrators
from different vendors. The most
important components of a process
calibrator specification are:

Reference uncertainty. Performance
of a calibrator at 23 °C + 3°C at the
time it is verified by the manufac-
turer. This specification does not
include the effects of time and
temperature, two of the largest
components of calibrator error.

Time. Fluke 740 Series calibrators
are delivered with both one-year
and two-year specs, to limit your
calibration support costs. You choose
your cal interval based upon the
performance you need.

Temperature. Fluke process calibrator
specs reflect performance from 18 ° to
28 °C. Compensation factors are
provided to permit specified use of the
calibrators over a wide -10 ° to 50 °C
range.

Allowance for traceability. Fluke specs
are not relative specs, but total specs,
including an allowance for uncertainty
of standards that provide traceability
to national standards.

Confidence level. Fluke uses a
conservative 95% confidence level
when setting specifications, increas-
ing your confidence that your
calibrator will remain in spec for its
stated calibration interval.

For more information, refer to the application
note “Understanding Specifications For Process
Calibrators.”

How to compare calibrators based on specifications.

9

Fluke Corporation

740 Series Brochure

Temperature, Thermocouples

Accuracy

Measure

Source

Type and range

1 year

2 years

1 year

2 years

E
-250 to -200 °C

1.3 °C

2.0 °C

0.6 °C

0.9 °C

-200 to -100 °C

0.5 °C

0.8 °C

0.3 °C

0.4 °C

-100 to 600 °C

0.3 °C

0.4 °C

0.3 °C

0.4 °C

600 to 1000 °C

0.4 °C

0.6 °C

0.2 °C

0.3 °C

N
-200 to -100 °C

1.0 °C

1.5 °C

0.6 °C

0.9 °C

-100 to 900 °C

0.5 °C

0.8 °C

0.5 °C

0.8 °C

900 to 1300 °C

0.6 °C

0.9 °C

0.3 °C

0.4 °C

J
-210 to -100 °C

0.6 °C

0.9 °C

0.3 °C

0.4 °C

-100 to 800 °C

0.3 °C

0.4 °C

0.2 °C

0.3 °C

800 to 1200 °C

0.5 °C

0.8 °C

0.2 °C

0.3 °C

L
-200 to -100 °C

0.6 °C

0.9 °C

0.3 °C

0.4 °C

-100 to 800 °C

0.3 °C

0.4 °C

0.2 °C

0.3 °C

800 to 900 °C

0.5 °C

0.8 °C

0.2 °C

0.3 °C

K
-200 to -100 °C

0.7 °C

1.0 °C

0.4 °C

0.6 °C

-100 to 400 °C

0.3 °C

0.4 °C

0.3 °C

0.4 °C

400 to 1200 °C

0.5 °C

0.8 °C

0.3 °C

0.4 °C

1200 to 1372 °C

0.7 °C

1.0 °C

0.3 °C

0.4 °C

T
-250 to -200 °C

1.7 °C

2.5 °C

0.9 °C

1.4 °C

-200 to 0 °C

0.6 °C

0.9 °C

0.4 °C

0.6 °C

0 to 400 °C

0.3 °C

0.4 °C

0.3 °C

0.4 °C

U
-200 to 0 °C

0.6 °C

0.9 °C

0.4 °C

0.6 °C

0 to 600 °C

0.3 °C

0.4 °C

0.3 °C

0.4 °C

B
600 to 800 °C

1.3 °C

2.0 °C

1.0 °C

1.5 °C

800 to 1000 °C

1.0 °C

1.5 °C

0.8 °C

1.2 °C

1000 to 1820 °C

0.9 °C

1.3 °C

0.8 °C

1.2 °C

R

-20 to 0 °C

2.3 °C

2.8 °C

1.2 °C

1.8 °C

0 to 100 °C

1.5 °C

2.2 °C

1.1 °C

1.7 °C

100 to 1767 °C

1.0 °C

1.5 °C

0.9 °C

1.4 °C

S
-20 to 0 °C

2.3 °C

2.8 °C

1.2 °C

1.8 °C

0 to 200 °C

1.5 °C

2.1 °C

1.1 °C

1.7 °C

200 to 1400 °C

0.9 °C

1.4 °C

0.9 °C

1.4 °C

1400 to 1767 °C

1.1 °C

1.7 °C

1.0 °C

1.5 °C

C
0 to 800 °C

0.6 °C

0.9 °C

0.6 °C

0.9 °C

800 to 1200 °C

0.8 °C

1.2 °C

0.7 °C

1.0 °C

1200 to 1800 °C

1.1 °C

1.6 °C

0.9 °C

1.4 °C

1800 to 2316 °C

2.0 °C

3.0 °C

1.3 °C

2.0 °C

XK
-200 to -100 °C

0.5 °C

0.7 °C

0.4 °C

0.5 °C

-100 to 800 °C

0.4 °C

0.6 °C

0.3 °C

0.4 °C

BP
0 to 800 °C

0.8 °C

1.1 °C

0.4 °C

0.5 °C

800 to 1600 °C

1.2 °C

1.8 °C

0.5 °C

0.8 °C

600 to 2500 °C

2.2 °C

3.3 °C

0.9 °C

1.4 °C

Sensor inaccuracies not included
Accuracy with external cold junction; for internal junction add 0.2 °C
Resolution: 0.1 °C
Temperature scale: ITS-90 or IPTS-68, selectable
Compensation: ITS-90 per NIST Monograph 175 for E, N, J, K, T, B, R,
S thermocouples; IPTS-68 per IEC 584-1 for E, J, K, T, B, R, S
thermocouples; IPTS-68 per DIN 43710 for L, U thermocouples
Temperature coefficient: 0.05 °C/°C from -10 °C to 18 °C and
28 °C to 50 °C
Common mode error: 0.01 °C/(Common Mode Volt)
Maximum input voltage: 30 V dc
Note: When simulating temperature in As Found/As Left procedures,
steps may be either linear by temperature or linear by mV potential.