Instructions of Standard Signal Isolator
With a 24V DC Power Output

1. Overview
The device is a standard signal isolator with a 24V DC power output. It works on high-linearity analog optocoupler principle. The device converts 4-20mA dc current into 4-20mA dc current or 0-5v(or 1-5V) dc voltage with single output or double outputs. Meanwhile, it supplies an isolated 24V DC power to the input section. The input, outputs and power supply are electrically isolated from each other. The unit features in their high accuracy, high isolation, low drift and wide range of operation temperature. They 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 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
Equivalent input impedance: about 250W
Overload: 2 times of full span (1 second, 10 times)
Power output: 24V±3V, 25mA
Output: 4-20mA dc and 0-5V dc(or 1-5V dc)
Load capability: Current output: £300W, Voltage output: 5mA
Accuracy: Single output: 0.2%, Double output: 0.5%
Temperature drift: Single output: 150ppm/°C, Double output: 250ppm/°C
Response time: £200mS
Isolation voltage: 2500V DC/1 minute
Power consumption: Single output: £1.5W, Double output: £2W
Operating temperature: 0-50°C
Power supply: +24V±10%
Case style: S3

4. Connections

Don't use all terminals named NC. Don't connect terminal 2 for 2-wire transducer.

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 the 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. Conductive dust and corroding gases may damage the circuit and connections. They are hazardous to the product. Don't operate in that environment.
4. Please ensure the terminal screws are tightened securely and reliably before measuring with probes of meters directly on the terminals.
5. If more than one standard signal isolators are mounted together, keep a space more than 10 mm between adjacent units.
6. The standard signal isolator has been calibrated before delivery. Please contact the company if readjustment is required.
7. Don't disassemble the standard signal isolator. Please avoid impact or falling down from a high place. Do not remove or damage the labels on the product.
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.