Related Manuals for CTC Union Mini-MAXX MX742
Summary of Contents for CTC Union Mini-MAXX MX742
- Page 1 MX742 Mini-MA X X Enclosure MX742 Mini-MA X X Enclosure 2 Dual Output Sensor Inputs 2 Dual Output Sensor Inputs Product Manual Product Manual...
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Page 2: Table Of Contents
Table of Contents • Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 •... -
Page 3: Introduction
Introduction CTC’s MX742 Mini-MAXX Box is a common cable termination point for dual output sensors to interface with portable data collectors . CTC MX742 Series Boxes provide BNC outputs for each channel . MX742 Overview The MX742 is a polycarbonate junction box that provides connection of the three-conductor input wiring of up to two dual output vibration and temperature accelerometers or piezo velocity sensors to a portable data collection unit . -
Page 4: Product Dimensions & Diagram
Product Dimensions Front View Side View Figure 1. Dimensions Data Collector Access Measurement (BNC) Location Card Figure 2. Diagram... -
Page 5: Mounting Instructions
Mounting Instructions Independent stainless steel mounting feet are included on the enclosure . Wall anchoring screws are not included . Note: If you have purchased a MX742 Box without cable entries provided, you should add your own entry prior to mounting the enclosure . CTC does not recommend putting holes in the top of the enclosure as it will cause restricted access to the wire termination connection points and also allow possible moisture ingression . -
Page 6: Conduit Entry
Conduit Entry If you are running conduit to your enclosure, ensure the conduit cable entry is located at the bottom of the enclosure when mounted . Note: To ensure moisture will not flow into the enclosure, a hole should be drilled at the lowest point in the conduit to provide drainage for any moisture . -
Page 7: Grounding
Grounding Ensure the shield ground wire on the MX742 Series Mini-MAXX Box is grounded to earth ground . A. Mounting to Earth Ground When mounting an MX742 Series Mini-MAXX Box to earth ground (such as an I-Beam), mount the shield ground wire using a mounting bolt through one of the mounting brackets on the enclosure . -
Page 8: Sensor Installation
B. Mounting to Non-Grounded Structure When mounting the Mini-MAXX Box to a non-grounded structure, ensure the shield ground wire or customer-supplied ground wire is tied to a source of earth ground . Figure 6. Ground Wire Placement Sensor Installation Installation of Sensors/Signal Input Cable Feed blunt-cut end through the cable entry at the bottom of the enclosure . - Page 9 Figure 8. Bottom View Figure 7. Front View Strip outer jacket of cable back 1¼ in . and remove all of the shielding . Separate the internal wires from the shield and twist the shield . Strip red and black insulation back ¼ in . ¼”...
- Page 10 Inputs SENSOR 1 SENSOR 2 Sensor Inputs Red = Positive Vib Black = Common White = Positive Temp Grey = Shield (Ground) Figure 10. Field Wiring for Two-Conductor Sensor Inputs Mark the Measurement Location Card located on the inside front cover with a description of each measurement location .
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Page 11: Post-Installation Testing
Post-Installation Testing The TM1018 Accelerometer Verification Meter can be used to verify cable conductivity, sensor location and proper wiring connections . The Verification Meter will indicate if the sensor, cable and/or junction box is in working condition . It will also confirm bias voltage of the accelerometer, which will inform you of the operation of the internal accelerometer amplifier . -
Page 12: Contact Information
The following LED Readout indicates the circuit integrity: Green LED: Normal . Indicates proper connection and an output bias will be given, indicating the health of the sensor (4 – 16 V indicates a healthy accelerometer) . Yellow LED: Open Circuit . Indicates one of the following: a .
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