2 inputs outputs signal isolator loop powered 4 20ma electric isolation
This apparatus provides isolated power supply to the field two-wire, three-wire transmitter, and detects the current signal in a circuit meanwhile. It transmits the input current or voltage signal to isolated current or voltage signal in a circuit or two isolated circuits, and the input, output, and power supply are galvanically isolated from each other.
It can be used together with modular instrumentation and DCS, PLC and other systems,to offer signal isolation, signal conversion, signal distribution, signal processing and other functions to field instrument, thereby enhancing the immunity of automatic control system in the industrial production process, and ensuring system stability and reliability. This product has many varieties, such as 1 in/1 out, 1 in/2 out, 1 in/4 out,2 in/2 out, with input/output magnetic isolation.
Compared with other similar products,this apparatus has the advantages of fast response time,low power loss and quite well temperature characteristics.
Mainly technical parameters:
Influence of ambient temperature
Output load capacity:
Please specify your requirements before order if greater output load capacity is needed.
Power supply voltage range:
18~32V DC (Recommended voltage:24V DC)
85~265V AC(OR 120~360V DC)
≥ 100 MΩ (Input /Output /Power)
≥ 1500 V AC (Input /Output /Power, 1mA leakage current, 1 minute test time)
Panel light indication:
PWR (green) remains shining during normal operation;
ALM light glitters (red) at occurrences of input signal fault, and remains shining at occurrence of input excess.
1 in/1 out
1 in/2 out
1 in/3 out
1 in/4 out
2 in/2 out
DC 24V as default
For example:HDTD-211,1 in/2 out,input 4~20mA,output 4~20mA,DC 24V.
Q1: Are you trading company or manufacturer ?
A: We are a manufacturer, committed to producing high accuracy, long-term stability, cost-efficient pressure/level/temperature measuring instruments.
Q2: What's your quality control system?
A: All of our products are completed with temperature compensation and 48 hours aging test before shipment. And all of our products will be fully pre-inspection by QC departments before shipping to you . We have the certification of ISO,CE we could send the certification test of our company to you.
Q3: What is the warranty of your products?
A: 2 years for level transmitter and pressure transmitter series others are 5 years from shipment date, for non-man-made damages.
Q4: What is your shipping method?
A: Small orders are delivered with DHL, FedEx, TNT, UPS , EMS. Large orders are recommended to ship by sea.
Q5: Do you provide samples ? A: Yes,we have materials in stock to help you to get the samples as soon as we can.
Q6: How long will you give me the reply? A: We can support you 24Hours online service via email, skype, what’sapp, facebook etc within 1 hour.