Knowledge Base

All voltages are measured with respect to the 0V power supply pin.

3D CAD Files
3D PDF File
Operating limits

The unit may be damaged if operated outside these limits

DTS2-RTD Only
ADC Resolution15 bits
ADC Max Error±5 LSB
Reference Accuracy±0.1% @ 25 °C
Note: RTD Class / accuracy, measured temperature range, choice of 2- or 3-wires sensor will affect the total temperature measurement accuracy of the system.
DTS2-TC Only
ADC Resolution14 bits / 0.25 °C
Thermocouple Temperature Gain and Offset Error (41.276μV/°C nominal sensitivity)±2 °C when Thermocouple = -200°C to +700°C, TA = -20°C to +85°C
±4 °C when Thermocouple = +700°C to +1300°C, TA = -20°C to +85°C
Note 1: Not including cold-junction temperature error or thermocouple nonlinearity.Note 2: Specifications may differ for thermocouple types other than Type K.
Absolute Maximums (both)
Ambient temperature range -10°C to 60°C
Supply voltage +12 to +28VDC
Voltage applied to any digital I/O pin -0.3V to Vsupply
Output sink current, per digital I/O pin used as output 500mA
Output sink current, aggregate of all pins 2.4A
Voltage applied to analog input pins
0-10V mode 30V
0-3.3V mode10V
0-20mA mode 25mA
Thermistor mode 30V
Analog output current 30mA
Real time clock battery voltage 3.6V
Temperature Sensors

The following temperature sensors can be used with DTS2 controllers.

DTS2 VariantSensor TypeNote
DTS2-RTDPT100Standard
DTS2-RTD1KPT1000Special Order
DTS2-TCK typeStandard
DTS2-TC[J/N/T/S/R/E]# typeSpecial Order (eg: DTS2-TCN)
DC electrical characteristics

Vsupply = 24V, Ambient temperature = 25°C unless otherwise noted.

Parameter ValueUnit
Supply current, Vsupply = 24V60 mA
Supply current, Vsupply = 12V120 mA
Analog input resolution12bits
Analog output resolution10bits
Analog input and output accuracy2%
Analog input resistance, 0-10V mode149.2
Analog input resistance, 0-3.3V mode1
Analog input burden resistance, 0-20mA mode165Ω
Analog output resistance100Ω
Digital output ON state resistance, output current = 500mA, temperature = full rated range300
Digital input current, Vin = 0V, Vsupply=24V (approximately=Vsupply/10,000)2.4mA
Digital input low voltage (voltage must be less than this to guarantee an “on” input)2V
Digital input high voltage (voltage must be more than this to guarantee an “off” input)4.6V
TTL Comm Ports
Maximum input voltage5.0Volts
Output Voltage3.3Volts
Maximum Data Rate115.2kBaud
RS485 Comm Port
Unit Load1
Unit load equivalent number of devices per network32
Maximum Data Rate115.2kBaud
Protection TVS diode breakdown voltage+6.8Volts