MS7314B transmitter current input isolation alarm setter

·Suitable for providing isolated DC power supply to transmitters on site, and detecting 4-20mA current signals from transmitters. After isolation transmission, output a standard 4-20mA current signal. And provide one (or two) sets of alarm signals through relay output.

·This signal alarm setter is a multifunctional interface instrument that integrates signal transmission, isolation, and signal output alarm functions

The computer can be connected through the USB interface on the front panel of the alarm setter. Set alarm values through software configuration. The alarm mode can be set, such as high/low alarm, normally open/normally closed. The default setting of this alarm setter at the factory is that the relay contacts are normally open. When the alarm is triggered, the relay contacts are closed, and the instrument panel shows that the third line of the loose alarm connection is disconnected from normal. However, the alarm indicator light on the instrument panel does not light up.

·DC power supply mode, power supply input-output and isolation between channels.

·Adopting standard 35mm DIN rail card installation. Plug and unplug terminal block with spring compression connection.

● Input

Input signal: 4~20mA

Input impedance: 24 Ω

Power distribution for transmitter: ≥ 18V at 20mA (factory default)

***Large input current: approximately 24mA

● Output

Output signal: 4~20mA, 1-5V

Load resistance: ≤ 550 Ω when outputting 4-20mA (factory default)

When outputting 1-5V, ≥ 100K Ω

Output ripple:<10mV p-p

● Alarm output

Two sets of relay contact outputs

Contact capacity: 24VDC, 2A

Load type: resistive load

Response time: ≤ 10ms

Alarm point setting: can be set through software.

Hysteresis: 1-1.5% of the range

Alarm indication (note: if there are no special requirements specified by the user when placing an order, the output alarm indication will be set according to the following factory default settings). When an alarm is output, the indicator light on the instrument panel will light up:

A1 is alarm 1, high limit alarm, ≥ 16mA. When the alarm is triggered, the red light will turn on.

A2 is alarm 2, low limit alarm, ≤ 8mA, when the alarm is triggered, the yellow light is on.

● Power supply

Power supply voltage range: 20-30VDC

Rated supply voltage: 24VDC

Current consumption (24VDC power supply, relay contact pull in):<80mA

● Comprehensive general parameters

Standard accuracy: ± 0.1%

Temperature drift: ± 0.015%/℃

Isolation capability: 2.5KV.1min, 50Hz between input output power supply

Insulation resistance: ≥ 100M Ω/500VDC between input output power supply

Working environment temperature: -20~+60 ℃

Storage environment temperature: -40~+80 ℃

Environmental humidity range: 5~95% RH (non condensing)

Electromagnetic compatibility: Complies with the requirements of 89/336/EEC, IEC/EN61000

Shell material/protection level: PC (polycarbonate)+ABS material/IP20

Dimensions: 16x116x110 (mm)