CBLUSB01 datasheet(6/36 Pages) REDLION

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mOdel paXT - THermOCOUple and rTd inpUT



THERMOCOUPLE AND RTD INPUTS



CONFORMS TO ITS-90 STANDARDS



CUSTOM SCALING FOR NON-STANDARD PROBES



TIME-TEMPERATURE INTEGRATOR

PAXT SPECIFICATIONS

READOUT:

Resolution: Variable: 0.1, 0.2, 0.5, or 1, 2, or 5 degrees

Scale: F or C

Offset Range: -19,999 to 99,999 display units

THERMOCOUPLE INPUTS:

Input Impedance: 20 MΩ

Lead Resistance Effect: 0.03µV/ohm

Max. Continuous Overvoltage: 30 V

RTD INPUTS:

Type: 3 or 4 wire, 2 wire can be compensated for lead wire resistance

Excitation current: 100 ohm range: 165 µA

10 ohm range: 2.6 mA

Lead resistance: 100 ohm range: 10 ohm/lead max.

10 ohm range: 3 ohms/lead max.

Max. continuous overload: 30 V

CUSTOM RANGE: Up to 16 data point pairs

Input range: -10 to 65 mV

0 to 400 ohms, high range

0 to 25 ohms, low range

Display range: -19999 to 99999

STANDARD

***

ACCURACY*

(0 to 50 °C)

ACCURACY*

(18 to 28 °C)

RANGE

no official

standard

0.9°C

0.4°C

-100 to 260°C

10 ohm Copper

alpha = .00427

INPUT TYPE

no official

standard

0.5°C

0.2°C

-80 to 260°C

120 ohm Nickel

alpha = .00672

no official

standard

1.6°C

0.4°C

-200 to 850°C

100 ohm Pt

alpha = .003919

IEC 751

1.6°C

0.4°C

-200 to 850°C

100 ohm Pt

alpha = .00385

0.20% of reading

+ 0.007 Ω

0.04% of reading

+ 0.005 Ω

0 to 25 Ω

(1 MΩ res.)

Custom

10 ohm range

0.12% of reading

+ 0.05 Ω

0.02% of reading

+ 0.04 Ω

0 to 400 Ω

(10 MΩ res.)

Custom

100 ohm range

ACCURACY*

(0 to 50 °C)

0.12% of reading

+ 5µV

0.02% of reading

+ 4µV

-10 to 65mV

(1 µV res.)

Custom

mV range

ACCURACY*

(18 to 28 °C)

RANGE

INPUT TYPE

WIRE COLOR

INPUT

TYPE

RANGE

ACCURACY*

(0 to 50 °C) STANDARD

ANSI

BS 1843

-200 to 400°C

-270 to -200°C

1.2°C

2.1°C

ITS-90 (+) blue

(-) red

(+) white

(-) blue

-200 to 871°C

-270 to -200°C

1.0°C

2.4°C

ITS-90 (+) purple

(-) red

(+) brown

(-) blue

-200 to 760°C

1.1°C

2.3°C

ITS-90 (+) white

(-) red

(+) yellow

(-) blue

-200 to 1372°C

-270 to -200°C

1.3°C

3.4°C

ITS-90 (+) yellow

(-) red

(+) brown

(-) blue

-50 to 1768°C

1.9°C

4.0°C

ITS-90 no

standard

(+) white

(-) blue

-50 to 1768°C

1.9°C

4.0°C

ITS-90 no

standard

(+) white

(-) blue

100 to 300°C

300 to 1820°C

3.9°C

2.8°C

5.7°C

4.4°C

ITS-90 no

standard

1.3°C

3.1°C

ITS-90 (+) orange

(-) red

(+) orange

(-) blue

(W5/W26) 0 to 2315°C

1.9°C

6.1°C

ASTM

E988-90***

standard

*After 20 min. warm-up. Accuracy is specified in two ways: Accuracy over an 18

to 28 °C and 15 to 75% RH environment; and Accuracy over a 0 to 50 °C and 0 to

85% RH (non condensing) environment. Accuracy specified over the 0 to 50 °C

operating range includes meter tempco and ice point tracking effects. The

specification includes the A/D conversion errors, linearization conformity, and

thermocouple ice point compensation. Total system accuracy is the sum of meter

and probe errors. Accuracy may be improved by field calibrating the meter readout

at the temperature of interest.

** The accuracy over the interval -270 to -200 °C is a function of temperature,

ranging from 1 °C at -200 °C and degrading to 7 °C at -270 °C. Accuracy may be

improved by field calibrating the meter readout at the temperature of interest.

*** These curves have been corrected to ITS-90.

ACCURACY*

(18 to 28 °C)

-200 to 1300°C

-270 to -200°C

aCCessOries

UNITS LABEL KIT (PAXLBK) - Not required for PAXT

Each meter has a units indicator with backlighting that can be customized

using the Units Label Kit. The backlight is controlled in the programming.

Each PAXT meter is shipped with °F and °C overlay labels which can be

installed into the meter’s bezel display assembly.

EXTERNAL CURRENT SHUNTS (APSCM)

To measure DC current signals greater than 2 ADC, a shunt must be used. The

APSCM010 current shunt converts a maximum 10 ADC signal into 100.0 mV.

The APSCM100 current shunt converts a maximum 100 ADC signal into 100.0

mV. The continuous current through the shunt is limited to 115% of the rating.

PROGRAMMING SOFTWARE

The Crimson software is a Windows based program that allows configuration

of the PAX meter from a PC. Crimson offers standard drop-down menu

commands, that make it easy to program the meter. The meter’s program can

then be saved in a PC file for future use. A PAX serial option card or PAX USB

programming card is required to program the meter using the software. Crimson

can be downloaded at www.redlion.net.

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