TR-80-R Buchholz Relay

Product features:

• Up to three alarms, three locks, triple redundancy design, improve product reliability

• It can monitor the volume of gas gas online in real time and transmit it to the background through RS485 digital signal (compatible with 4-20mA analog signal); The external independent gas volume monitoring chamber isolates the interference on the volume monitoring caused by the operation of other components

• The all-metal high-strength movement framework is used to stabilize the flow rate setting value of up to 2.5 m/s

• The float main shaft is equipped with imported precision bearings to increase bearing support and eliminate the hidden danger of wear due to float shaft bore.

• The streamlined float ensures stance stability at high oil speeds

• Protection grade reaches IP67, strong salt spray resistance environment (360 hours NSS salt spray test)

Technical parameters:

1. Material of main components

Shell: aluminum alloy

Observation glass: UV resistant protective glass

2. Working environment

Oil temperature: - 40 ℃~+100 ℃

Ambient temperature: - 40 ℃~+70 ℃

3. Action point properties:

Setting range of oil speed alarm: 0.7~2.5m/s, accuracy ± 12%

Three pairs of dry spring contacts for light and heavy gas alarm (three alarms and three locks)

Electronic auxiliary action point: 1 pair

4. Installation environment: protective cover is required for outdoor use

Suitable for high altitude environment

5. Cable connector: M25X1.5 (for action point), one on both sides of the junction box;4X0.5 Shielded cable (for remote signal)

6. Electrical characteristics:

Maximum rated power of action point: 50W (5A), maximum switching current: 3A;

Auxiliary action point: maximum switching power 150W (5A)

Mainboard power supply: 18~36 VDC;

Power frequency withstand voltage: between reed tube contact groups, to ground: 2.5KV DC/AC 1min

Reed contact normally open, auxiliary contact normally open: 1.0KV DC/AC 1min

Analog output: 4~20mA

Digital signal output: communication protocol ModBus RTU RS-485

7. Number of contacts: up to seven pairs, six pairs of dry spring contacts, and one pair of auxiliary changeover contacts

8. Suitable for high altitude environment

9. Protection grade IP67;

10. Electromagnetic compatibility characteristics:

IEC 61000-4-2 Class IV

IEC 61000-4-3 Class III

IEC 61000-4-4 Class IV

IEC 61000-4-5 Class IV

IEC 61000-4-6 Class III

IEC 61000-4-8 Class V

IEC 61000-4-9 Class V

IEC 61000-4-10 Class IV

IEC 61000-4-12 Class III

IEC 61000-4-17 Class III