EPRO MMS3210/022-000 shaft vibration transmitter

EPRO MMS3210/022-000 shaft vibration transmitter

EPRO MMS3210 Dual Channel Axis Displacement Transmitter MMS3210

Used for measuring and processing shaft displacement signal, the measurement input is eddy current sensor, built-in preprocessor, in line with common standards, such as: API670;

Application:

The MMS3210 dual channel shaft displacement transmitter is one of the MMS3000 family of transmitters designed to monitor axial displacement, axial position, thermal expansion and radial displacement, position of thrust bearings and valves, and many other applications using eddy current displacement sensors. It is also suitable for the combined measurement of two sensors, such as the measurement according to API670 to take the maximum value or conical surface measurement and compensation measurement.

The input of the transmitter is EPRO eddy current displacement sensor PR6422/... , PR6423 /... , PR6424 /... , PR6425 /... , and PR6426 /... .

Applications include all types of turbine machinery, large and small steam turbines, fans, blowers, compressors, gearboxes, centrifuges, pumps, coal mills and others.

This system is not only suitable for large equipment in power plant, oil refinery, chemical plant, combined with fieldbus, PLC, main computer and network, but also suitable for independent monitoring of small turbine machinery with few measuring points.

This transmitter does not have explosion-proof function.

Function and principle:

The MMS3210 dual-channel axial displacement transmitter converts two independent eddy current displacement sensor inputs into two independent outputs proportional to the displacement.

The built-in "self-check" circuit detects sensor and transmitter circuit faults. If faults are found, the logical "OK" output will change state and the current output will change from 4-20mA to 0mA. Initial setup is accomplished by toggle switches and knob switches. The factory setting of the transmitter is the common working mode, and the factory can also set it according to the user's requirements.

Technical data:

Sensor input:

Two independent eddy current sensor inputs. The sensor is Epro PR6422/... , PR6423 /... , PR6424 /... , PR6425 /... And PR6426 /... .

Standard measurement range: selected by toggle switch

Sensor type range

PR6422 /... 1mm

PR6423 /... 2mm

PR6424 /... 4mm

PR6425 /... 4mm

PR6426 /... 8mm/12mm/16mm/20mm

Frequency range: 0... 10 hz;

Linear error: < 0.25%;

Signal output:

Two way 0/4... 20mA current output, one way for each channel, proportional to the corresponding input; Or one current output, proportional to the maximum value of the two-channel measurement.

Allowable load: < 500Ω;

With short circuit and open circuit protection, the cable is connected by clamping terminals.

Temperature drift: zero: < 0.05%/K; Gain range: < 0.01%/K.

Time drift: zero: < 0.05%/24 hours; Gain range: < 0.01%/24 h.

Two buffered voltage outputs (2-10V), one way for each channel, proportional to the input signal, for testing purposes, but also for analytical and diagnostic purposes;

One "OK" state output and two limit output.

Power supply: 18... 24... 31.2 V dc. The transmitter circuit is electrically isolated from the power supply through a DC/DC converter.

Current consumption: about 100mA/24V;

Power consumption: about 2.5 watts.

Environmental conditions :(according to IEC359, DIN43745)

Enclosure: Corrosion resistant, aluminum;

Protection grade: IP65 refer to DIN40050, IEC144 CE certification;

Anti-electromagnetic interference: Refer to EN55011 and EN50082-2;

Operating temperature range: -20... + 80 ℃.

Storage temperature range: -30... + 90 ℃.

Permissible relative humidity: 0... 95% without condensation;

Allows vibration and impact: impact: 20g/2ms; Vibration: 5G at 60Hz.

Installation direction: refer to figure 1 for cable outlet position.

Dimensions: 127.5mm×125.75mm×80mm(width × height × thickness).

Net weight: approx. 1300 grams.

Gross weight: about 1500 grams.

Accessories: Operation manual is provided with the transmitter.

Module/sensor monitoring:

The internal module monitoring circuit can continuously monitor the following conditions: