Signal / Meter / Instrumentation

DST01

Universal Isolating Signal Converter / Splitter

  • Signal isolation:Power supply;Analog input
  • 3 groups of analog output
  • 1 set RS-485 output
  • Multiple input signals
  • LED display working status
  • Easy button operation
  • DIN rail installation, high safety & stability

DST01 The signal conditioner incorporates two bright and easy to read LCD displays which indicate process value (PV) and user selected parameter.
Powered by a DC 12 … 38 V or AC 95 … 250 V supply. It is fully programmable for linear voltage, linear current, Pt100 and thermocouple types such as J, K, T, E, B, R, S, N, L, U, P, C, and D input. Its fast sampling rate allows the signal conditioner to retransmit the signal faster, the maximum of 3 retransmission with one input.

Products Specification

Power Power supply   AC 95 … 250 V, DC 12 … 38 V
Power consumption   10 VA, 5 W maximum
Signal input Type   Thermocouple(J, K, T, E, B, R, S, N, L, U, P, C, D),   RTD(Pt100(DIN),
Pt100(JIS)), current(mA), voltage(V)
Sampling rate   5 Times / Second(200 msec)
Temperature effect   1.5 μV / °C for all inputs except mA input, 3.0 μV / °C for mA
Sensor lead
resistance effect
  Thermocouple:0.2 μV / Ω ;
3-wire RTD:2.6°C / Ω of difference  of resistance of two leads
2-wire RTD:2.6°C / Ω of sum of resistance of two leads
Burn-out current   200 nA
Common mode
rejection ratio(CMRR)
  120 dB
Normal mode
rejection ratio(NMRR)
  55 dB
Sensor break detection   Sensor open for thermocouple, RTD and mV inputs, sensor short
for RTD input, below 1 mA for 4 … 20 mA input, below DC 0.25 V
for DC 1 …   5 V input, not available for other inputs
Sensor break
response time
  within 4 seconds for thermocouple, RTD and mV inputs, 0.1 second
for 4 … 20 mA and DC 1 … 5 V inputs
Analog
retransmission
output 1
output 2
output 3
Number of outputs   3
Output signal   4 … 20 mA, DC 0 … 10 V
Accuracy   ±0.05% of span ±0.0025% / °C
Load resistance   0 … 500 Ω for current output, 10 KΩ minimum for voltage output
Output regulation   0.01% for full load change
Output setting   Time 0.1 second(Stable to 99.9%)
Isolation breakdown   AC 1000 V minimum
Integral linearity error   ±0.005% of span
Temperature effect   ±0.0025% of span / °C
Data
communication
Interface   RS-485
Protocol   Modbus RTU(Slave mode)
Address   1 … 247
Baud rate   2.8 … 115.2 KBPS
Parity bit   None, even or odd
Stop bit   1 or 2 bits
data length   7 or 8 bits
Communication buffer   160 bytes
User interface Key / Display   Keypad:4 keys
4 Digit LCD display;No of display 2
Upper:0.58”(15 mm);Lower:0.3”(7.8 mm)
Digital filter Function   First order
Time constant   0, 0.2, 0.5, 1, 2, 5, 10, 20, 30, 60 seconds, programmable
Environmental
and physical
specifications
Temperature   Operating:-10 … 50°C;Storage:-40 … 60°C
Humidity   0 … 90%RH(Non-condensing)
Altitude   2000 meters maximum
Pollution   Degree II
Insulation resistance   20 MΩ minimum(at DC 500 V)
Dielectric strength   AC 2000 V, 50 / 60 Hz for 1 minute
Vibration resistance   10 … 55 Hz, 10 m/s2 for 2 hours
Shock resistance   200 m/s2(20g)
Dimensions / Weight   W22.5xH96xD83 mm / 160g
Approval
standards
IP rating   IP65 for panel(in process), IP20 for terminals and housing(Indoor)
EMC   EN61326

Products Application

Chemical industry / Energy / Oil & gas / Marine / Water circulation system / Factory automation / Metal & steel / Cement / Pulp & paper / Pharmaceuticals / Food & beverage

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