Product Introduction
MMS3120-022-100 is a dual-channel bearing vibration transmitter produced by EPRO. Emerson's Dual-Channel Bearing-Vibration Monitor is designed for small and low channel applications such as small steam, gas, and hydro turbines, and such as compressors, pumps, and fans to measure absolute bearing vibration signals. Measurement settings, alarms, and provided outputs are field configurable via software.
Technical Specifications
|
Manufacture |
EPRO |
|
Model |
MMS3120/022-100 |
|
Part Number |
MMS3120-022-100 |
|
Description |
Dual Channel Bearing Vibration Transmitter |
|
MoOrigin |
Germany |
|
Dimension |
34*25*14cm |
|
Weight |
1.25kg |
Product Details
Function and Design:
The MMS 3120/.. Dual Channel Bearing Vibration Transmitter converts the signals of vibration transducers into two independent signals proportional to the vibration velocity or the vibration amplitude (peak – peak) or to an output signal proportional to the maximum of these characteristical values.
The integrated module and sensor supervision detects fault functions of both - sensor and module electronic. In error situations the status of the "OK" output changes and the 4...20 mA current output indicates 0 mA.
All required configurations are made by means of the MMS 3910W configuration software. The transmitters are delivered with a standard configuration suitable for most applications, if desired any other configuration can be prepared in the factory.
| Sensor inputs: |
|
Two independent inputs for seismic vibration sensors of type PR 9268/20, PR 9268/30; PR 9268/60 and PR 9268/70 Sensor connection: Harting connector |
| Measuring ranges: |
| Freely selectable by means of configuration software according to the measuring ranges of the applied sensors. |
| Frequency ranges (-3dB): |
|
High pass filter: 5/10/15 Hz Low-pass filter: 50…1500 Hz |
| Output characteristical value: |
|
Standard:
Optional:
Current output ranges: 0/4…20 mA or 20…4/0 mA Maximum burden: 500 Ohm Open circuit and short-circuit proof |
| Buffered sensor signal: |
|
Two signal outputs for analysis and diagnosis purposes one for each channel, proportional to the dynamic sensor signal. Accessible via terminals. Unfiltered voltage output: ±5,0 V; Error ±2,5 % |
| Limit value- and channel supervision: |
|
The transmitter provides altogether 5 function outputs. Limit values can be programmed either on individual measurements or for the sum value of the combined measurements. Beyond this, the function outputs can be used to indicate the Channel Clear state. The function outputs can be freely assigned by means of the configuration software. The following options are possible: • Without function outputs • 5 X opto-coupler output UMAX: 48 V DC IMAX: 100 mA PMAX : 5 W • 5 x relay contact (make contact) UMAX: 48 V DC IMAX: 1 A PMAX : 50 W • 5 x photomos relays UMAX: 48 V DC IMAX: 500 mA PMAX : 25 W |
| Data interfaces: |
|
Standard: • RS 232 interface for configuration of the transmitter and for displaying of the measure data. Optional: • RS485 bus with epro protocol V2.0 • PROFIBUS DP |
|
Linearity error (without sensor): |
| 0,2% at 25°C |
|
Linearity error (with sensor): |
| < 2,2 % at 25°C |
| Output stability over temperature: |
| < 0,08%/10 K |
| Long-term drift: |
| Max. 1% of f.s.d. |
| Power supply: |
|
Option for redundant power supply, decoupled via diodes. Nominal: +24 V DC Spannungsbereich: +18…+31,2 V DC Power consumption: Depending on the built-in options. max. 6 W |
| Housing: |
| Aluminium, non-corroding |
| Protection class: |
|
Protection class: IP 65 according to DIN 40050, IEC 144, CE certified. |
| EMC tested: |
| according to EN 55011 and EN 61326 |
| Environmental conditions: |
|
(according to IEC 359, DIN 43745) Maximum permissible temperature of the mounting surface: 65°C. Operating temperature range: -20…+65°C Mounted on 10 mm spacing bolts: Maximum permissible temperature of the mounting surface: 90°C. Operating temperature range: -20…+45°C By all means, heat concentrations must be avoided by constructive measures. |
| Permissible relative humidity: |
| 0…...95 % non-condensing |
| Vibration and shock: |
|
shock: 20 g over 2 ms vibration: 5 g at 60 Hz |
| Mounting direction: |
| Preferably with the cable glands downwards. |
| Weight: |
|
Depending on the chosen hardware options. Net weight: max. 1,3 kg Gross weight: max. 1,5 kg |
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