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MIL8700 Series

Multi-Channel Machinery Protection Monitor

The Mechanalysis model MIL8700 Machinery Protection Monitor has been providing Industry with unrivalled reliable machinery protection for over 15 years. During this time it has taken advantage of technology improvements to offer greater functionality. Over 1300 units have been delivered to Industry with almost 100% reliability in long term service. This remarkable performance endorses Mechanalysis (India) Ltd. as a leading supplier of on-line vibration measurement and TSI parameters with essential functionality at competitive prices.

The MIL8700 system consists of a Main Rack Frame, panel mounting type. It houses a maximum of eight modules from a wide selection of measurement Modules (vibration and turbine supervisory). When loaded with up to eight dual channel modules a maximum of 16 measurement channels are possible in one rack frame. Modules with Analog or Digital displays are available. The MIL8700 provides industry standard 4-20mA DC signal output for interfacing with Distributed Control System (DCS). Barrier-type terminal strips for external wiring are located at the rear. Input signals are continuously monitored to ensure that the sensors, interconnecting cables and modules are functioning.

Sealed electromagnetic relays are fitted in the Main Rack Frame for common Alarm, Trip and Circuit Fault functions. Reed relay contacts provide individual Alarm and Trip per module. Higher relay contact ratings of 5A resistive at 230VAC are available with the optional Relay Expander Module.

The Control Module Panel contains a Power ‘ON’ LED indicator, Start-up Attenuation, Trip Override LED indicator and a Circuit Test switch. The standard Main Rack Frame has a concealed trip override switch for use by service personnel.

An integral Switch Mode Power Supply (SMPS) located at the rear provides DC power for the modules and associated transducers. The unit copes ably with most power supply inputs as well as variations in the mains supplies.




System Options  

The MIL8700 Machinery Protection System offers a range of customised solutions. This cover:

  • Panel for Vibration Monitoring System or for Turbine Supervisory System (TSI)
  • Panel for Digital Panel Meters (DPM)
  • DPM’s for remote and local panel indication
  • Power Supply for redundancy ±24V DC SMPS
  • Current Isolators
  • Un-interrupted Power Supply (UPS)
  • Recorders (includes paperless recorder)
  • Signal Transmitter for MIL544M Sensor (for distance exceeding 330m)
  • Junction Boxes (IP55 and IP65 protection)
  • Wireless Transmission system for Analog / Digital data
  • 4-20mA DC to RS485 or RS232 converters for DCS and SCADA connectivity
  • Explosion proof boxes for sensor mounting in hazardous areas
In addition to the above options we have considerable expertise in designing customised mounting brackets for TSI applications. In particular, plant Renovation & Modernisation (R&M) projects.

AVAILABLE MACHINERY PROTECTION MODULES:

The table below summarises the Model numbers: e.g. MIL8710 Module series for vibration covers a suite of modules providing a comprehensive range of sensor inputs, measured units and optional ranges. Proposals will specify the part number to meet the end user’s specific requirements.

Models

FUNCTION

Chls

Display

Sensors

UNITS

MIL8710

Vibration

1

Analog

Velocity Sensor             Accelerometer                  ECP

microns Pk-Pk

mm/sec Pk

g Pk

MIL8720

Vibration

2

Analog

MIL8730

Axial Shift

2

Digital

ECP

mm

MIL8740

Cam Valve

2

Digital

Rotary Potentiometer
%
User Defined

MIL8750

Differential Expansion

2

Digital

ECP

mm

MIL8760

Eccentricity

2

Digital

ECP

microns Pk-Pk

MIL8770

Other Parameters

2

Digital

4 - 20mA DC

User Defined

MIL8780

Shell Expansion

2

Digital

LVDT

mm

MIL8790

Speed Monitor

2

Digital

 ECP
User Defined

RPM

 
 
 

SPECIFICATION OF MODEL 8700 MAIN RACK WITH POWER SUPPLY
 
      
Construction
  Part Number 87001
Rugged construction with top and bottom aluminium extruded channels and ABS press fitted guides maintain module / connector alignment. Extruded aluminium frame members and substantial formed aluminium structural parts. Conduit entry holes at the base provide easy access for installation and wiring. The epoxy-glass circuit boards with gold plated connector contacts, all solid-state circuitry and virtually wire-free modular assembly enhances reliability.
Common Alarm Relay
Electromagnetic Common Alarm Relay operates when any module alarm occurs. One change-over (SPDT) potential free contacts rated at 5A resistive @ 230V AC are provided, normally de-energized (non fail safe), field changeable to normally energize (fail safe). Reset is manual and is actuated only when the signal level goes below the pre-set alarm level.
Common Trip Relay
Electromagnetic Common Trip Relay operates when any module trip occurs. Two change-over (DPDT) potential free contacts rated at 5A resistive @ 230V AC are provided, normally de-energized (non fail safe), field changeable to normally energize (fail safe). Reset is manual and is actuated only when the signal level goes below the pre-set trip level.
Common Circuit Fault Relay

Electromagnetic Common Trip Relay operates when any circuit fault is detected by Module “OK” light circuits. One change-over (SPDT) potential free contacts rated at 5A resistive @ 230V AC are provided, normally de-energized (non fail safe), field changeable to normally energize (fail safe). Reset is automatic when fault condition returns to normal.
Remote Reset
Alarm and trip relays may be reset using contacts connected to Remote Reset Terminals.
Test
A spring loaded Test Switch on the Control Module front panel is provided to check the healthiness of the individual modules for which internally generated test signal is applied to all the modules. Relays are automatically deactivated during the test.
Trip Override
Concealed toggle switch located at rear of main rack frame inhibits common Trip Relay during servicing or troubleshooting. Flashing red front panel indicator advises operatives.
Start-up Attenuation
Start-up control bus activates attenuator in all modules equipped with this feature in response to users control switch. Control panel LED lamp indicates that start-up function is activated.
Power Supply
90 – 270V AC, 50Hz, single phase, 200 watt.
SMPS power supply furnishes ± 24 volt power to monitor modules.
Wiring
Barrier terminal strips for all external wiring. Conduit holes are provided on Main Rack Frame
Environmental
Storage temp: -18°C to 65°C
Operating temp: 0°C to 50°C ambient
Humidity 95% none condensing
Weight & Dimensions
Rack & Power Supply 6.8 Kg
Module - 2 Channels 0.45 Kg
Rack with 8 modules - 10.0 Kg
Dimensions: 482mm (W) x 177mm (H) x 355mm (D)
 
 
Mechanalysis (India) Ltd. strives to continue to improve the above specification and retains the right to change them without notice
   
MIL306
MIL306C
MIL306DD
MIL811
MIL811D
MIL812
   
MIL544
MIL544M
MIL546DP
   
MIL1224
MIL1225
MIL8700 SERIES
MIL8710
MIL8720
   
MIL7110
MIL7120
   
B50
B150
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