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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

TECHNICAL SPECIFICATIONS

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