Universal Isolating Signal Converter or Splitter

Universal Isolating Signal Converter or Splitter – Overview

The Universal Signal Converter converts a digital signal into an analogue signal. Suitable for use in factories, manufacturing and production. This model incorporates two easy-to-read LCD displays which indicate process value (PV) and user-selected parameters. 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. Maximum of 3 retransmissions with one input.

Universal Isolating Signal Converter or Splitter – Features

Signal isolation: Power supply; Analogue input
3 groups of analog output
1 set RS-485 output
Multiple input signals
LED display
Easy to operate
DIN rail installation
High safety & stability

Description

Universal Isolating Signal Converter or Splitter | DST01

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 seconds for 4 … 20 mA and DC 1 … 5 V inputs

Analogue retransmission

Number of outputs

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

User interface

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

Universal Isolating Signal Converter or Splitter | DST01

Universal Isolating Signal Converter or Splitter | DST01

Universal Isolating Signal Converter or Splitter | DST01