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Smart PT100

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Products | IO Modules | SM-PT100

 

SM-PT100

SMART-Module with 4 Optoisolated

PT100 Inputs

 

The SM-PT100 is used for 2, 3 or 4-wire temperature measurement using PT100 sensors driven by an on-board constant current source.

Capable of connecting sensors measuring temperatures between -200ºC and +850ºC, the SMTHERM uses a fast 16-bit delta-sigma A/D converter that ensures an absolute measurement accuracy of 0.2ºC.

 

►      2, 3 or 4-wire PT100 sensor inputs

►      Open sensor detection

►      Self calibration (on-board EEPROM)

►      Overvoltage protection

►      2 user configurable LEDs

 


SM-PT100

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Technical Specifications

Input

Function

: PT100 temperature measurement with 4-wire

connection supported and open sensor detection

Temp. Range

: -200ºC to +850ºC

Temp. Drift

: 1 LSB/ºC (not compensated)

Conversion Time: Typ. 125ms, max. 500ms (depending on filter settings)

Input Impedance

: 10 MW(min.)

Resolution

: 16-Bit

Absolute Accuracy

: ± 0.2ºC (sensor errors excluded)

Calibration

: Self calibration

Linearisation

: By software

Overvoltage Protection

Continuous

: ± 25V (power connected)

± 35V (power disconnected)

Common

Isolation

: 1.0 kV optoisolated from the system

EEPROM

: 256 Byte serial EEPROM for calibration data

Front Panel

: 2 Red LEDs (user configurable)

Weight

: 40g

Power Cons.

: 350mW (min.), 450mW (max.)

Temp. Ranges

: 0ºC to +70ºC

-40ºC to +85ºC (opt. E2)

-55ºC to +85ºC (storage)

Humidity

: 5% to 95% non-condensing

 

AttachmentSize
SM-PT100-Datasheet.pdf221.66 KB
SM-PT100-Manual.pdf309.71 KB
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