1. Overview
The standard signal isolator works on high-linearity analog optocoupler principle. It converts 4-20mA dc current into 4-20mA dc current or 0-5v(or 1-5V) dc voltage with single output or double outputs. Its input, outputs and power supply are electrically isolated from each other. It features in its high accuracy, high isolation, low drift and wide range of operation temperature. It can well avoid the common-mode noise and power line interference generated during the transmission of signals from transducers or instruments. It is especially suitable to use in these devices, which requires electrically isolated, such as sensors, transducers and meters. It may be widely used in measuring and controlling systems with PLC, computer and automatic control systems.
2. Part numbers
 

3. Specifications
Input: 4-20mA DC
Power supply: +24V±10%
Case style: S3
Equivalent input impedance: about 250W
Output: 4-20mA DC and 0-5V DC(or 1-5V DC)
Load capability: Current output: £300W, Voltage output: 5mA DC
Accuracy: Single output: 0.2%, Double output: 0.5%
Temperature drift: Single output: 150ppm/°C, Double output: 250ppm/°C
Overload: 2 times of full span (1 second, 10 times)
Response time: £200mS
Isolation voltage: >2500V DC/1 minute
Power consumption: Single output: £0.6W, Double output: £1.2W
Operating temperature: 0-50°C  

4. Connections

Don't use all terminals named NC.

5. Case style and Mounting diagram(mm)
S3 case style is shown in Fig. 3. Dimensions: L x W x H: 36 x 83 x 76 mm. Type 35 DIN rail mounting or screw mounting shown in Fig.4. The spacing between terminals is 5.08 mm.

6. Notes
1. Please check part numbers, number of products according to the packing list and labels on the products carefully before use.
2. Please make sure to connect input, output and power supply correctly in accordance with the connection diagram of your part number before power on.
3. The standard signal isolators should be used only in environments without conductive dust, corrosive or explosive gases.
4. Please ensure the terminal screws are tightened securely and reliably before the electrical testing with a multimeter directly on the terminals.
5. If a group of standard signal isolators are mounted together, keep a space more than 10 mm between adjacent units.
6. The standard signal isolators have been calibrated before delivery. Please contact the company if readjustment is required.
7. Don't disassemble the standard signal isolators. Please avoid impact or fall down from a high place. Do not remove or destroy the product labels.
8. Please take additional and reasonable means for lightning protection, especially when the input and output wires of the standard signal isolator are exposed outdoor.