SM-THERM

SMART-Module with 4 Optoisolated Thermocouple Inputs

SM-THERM supports up to four groups of R, S, B, J,T, E or K thermoelement sensors together with a cold-junction for extremely accurate temperature

measurements.

Designed around a fast 16-bit delta-sigma A/D converter, the SM-THERM  ensures an absolute measurement accuracy of 0.2ºC over the complete

operating temperature range of -210ºC to +1820ºC.

►      4 thermocouple input groups

►      One, 2-wire PT100 input for cold-junction

►      Open sensor detection

►      Self calibration (on-board EEPROM)

►      Overvoltage protection

►      2 user configurable LEDs

Output

Function

: Temperature measurement using thermoelement sensors   aranged in 4 groups

Temp. Range

: -270ºC to +1820ºC

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

Feature

: Open sensor detection

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