7 specification, 1 input rtd 2-, 3- and 4-wire connection, 2 input resistance – INOR PROFIPAQ-L User Manual

Page 13: 3 input thermocouple

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2.6.4 Ex Cable requirements:

For an ambient temperature ≥ 70°C, heat resistant cables shall be used with a rating of

at least 10K above the ambient temperature. For ambient temperatures below –10

°C use

field wiring suitable for the minimum ambient temperature.

2.6.5 ProfIPAQ SmartSense (low sensor isolation detection)

SmartSense is a feature that continuously monitors the isolation resistance of

thermocouples and RTDs as well as the cabling between sensor and transmitter. ProfIPAQ
will react by transmitting information over the PROFIBUS if the isolation resistance is below

a user-defined level. SmartSense requires an extra lead (Low isolation detection lead) inside

the thermocouple or RTD, see connection chart. For information on how to activate this
function, see 4.1.5 Output configuration in the Part 2 of the manual.

2.6.6 ProfIPAQ Sensor Aging

If an RTD or thermocouple with double sensor elements is used, ProfIPAQ can often

detect sensor aging by checking the reading from both elements. Too big difference will

indicate sensor aging, and information will be transmitted over the PROFIBUS. How to
activate this function, see 4.1.5 Output configuration in Part 2 of the manual.

2.7 Specification

2.7.1 Input RTD

2-, 3- and 4-wire connection

Pt10

(IEC60751, a=0.00385)

-200 to +850°C

Pt50

(IEC60751, a=0.00385)

-200 to +850°C

Pt100

(IEC60751, a=0.00385)

-200 to +850°C

Pt200

(IEC60751, a=0.00385)

-200 to +850°C

Pt500

(IEC60751, a=0.00385)

-200 to +850°C

Pt1000

(IEC60751, a=0.00385)

-200 to +850°C

Pt10

(JIS1604, a=0.003916)

-200 to +850°C

Pt50

(JIS1604, a=0.003916)

-200 to +850°C

Pt100

(JIS1604, a=0.003916)

-200 to +850°C

Ni50

(DIN 43760)

-60 to +250°C

Ni100

(DIN 43760)

-60 to +250°C

Ni120

(DIN 43760)

-60 to +250°C

Ni1000

(DIN 43760)

-60 to +250°C

Sensor

current

~250

µA

Maximum sensor wire resistance

25 Ω/ wire

2.7.2 Input Resistance

Potentiometer / Resistance

2-, 3- and 4-wire connection

Low range

0 to 400 Ω

High range

0 to 4000 Ω

Customized linearization

Up to 50 points

Sensor

current

~250

µA

Maximum sensor wire resistance

25 Ω/ wire

2.7.3 Input Thermocouple

T/C B

Pt30Rh-Pt6Rh (IEC 60584-1)

400 to +1800°C

T/C C

W5Re/W26Re (ASTM E 988)

0 to +2315°C

T/C D

W3Re/W25Re (ASTM E 988)

0 to +2315°C

T/C E

NiCr-CuNi (IEC 60584-1)

-200 to +1000°C

T/C G

W/W26Re (Not an ASTM symbol)

-32 to +2300°C

T/C J

Fe-CuNi (IEC 60584-1)

-200 to +1000°C

T/C K

NiCr-Ni (IEC 60584-1)

-200 to +1350°C

T/C L

Fe-CuNi (DIN 43710)

-200 to +900°C

T/C N

NiCrSi-NiSi (IEC 60584-1)

-200 to +1300°C

T/C R

Pt13Rh-Pt (IEC 60584-1)

-50 to +1750°C

T/C S

Pt10Rh-Pt (IEC 60584-1)

-50 to +1750°C

T/C T

Cu-CuNi (IEC 60584-1)

-200 to +400°C

T/C U

Cu-CuNi (DIN 43710)

-200 to +600°C

Input impedance

>10 MΩ

Maximum sensor wire resistance

500 Ω(total sensor loop)

Cold Junction Compensation (CJC)

Internal, remote (Pt100) or fixed

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