SEM210

The SEM210 is a universal programmable temperature transmitter which accepts most commonly used Pt100, thermocouple, mV and slide-wire sensors and generates an industry standard (4 to 20) mA transmission signal. This type of product is useful if you use a number of different sensors; you only need to hold one product in stock. The output range and other operating parameters are easily programmed using our free software and USB powered configurator. Isolation is a standard feature to overcome any potential ground loop effects and a sensor referencing facility enables the transmitter to be calibrated to a particular sensor.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

INPUT SENSORS AND RANGES
RTD (Pt100)
Sensor Range (-200 to 850) °F, (18 to 390 Ω)
Minimum Span*¹ 25 ºC
Linearisation BS-EN60751 BS1904 DIN43760 JISC 1604
CUSTOM [X]*³
Basic Measurement Accuracy ± 0.01 % FRI ± 0.05 % rdg
FRI = Full Range Input
Thermal Drift Zero 0.008 °C/°C
Span 0.01 %/°C
Excitation Current (300 to 550) μA
Maximum Lead Resistance 50 Ω/leg
Lead Resistance Effect 0.002 °C/Ω
Basic Measurement Accuracy*² ± 0.04 % FRI ± 0.04 % rdg or
0.5 ºC (whichever is greater)
Linearization BS 4937/EC 584-3
Cold Junction Error ± 0.5 °C
Cold Junction Tracking 0.05 °C/°C
Cold Junction Range (-40 to 85) ºC
Thermal Drift Zero 0.1 μV/°C
Span 0.01 %/°C
MILLIVOLTS
Input Voltage source
Range (-10 to 75) mV
Characterisation Linear Custom [X]*³ (5th Order Polynomial)
Minimum Span*¹ 5 mV
Basic Measurement Accuracy*² ±10μV ±0.07% rdg
Input Impedance 10 MΩ
Thermal Drift Zero 0.1 μV/°C
Span 0.01 %/°C
SLIDEWIRE
Input 3 wire potentiometer
Resistance Range (10 to 390) Ω [End to End]
(Larger values can be accommodated by fitting an external resistor)
Characterisation Linear Custom [X]*³ (5th Order Polynomial)
Minimum Span*¹ 5 %
Basic Measurement Accuracy*² 0.1 %
Temperature Drift 0.01 %/ºC
OUTPUT
Output Range < 3.8 to > 20.2 mA
Max Output 23 mA
Accuracy ± 5 μA
Voltage Effect 0.2 μA/V
Thermal Drift 1 μA/°C
Supply Voltage (10 to 35) V
Max. Output Load [(V supply -10)/20] KΩ
(700 Ω @ 24 V)

datasheet