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METRAVON MV-WA0004 is a 304 stainless steel load cell junction box with signal trim. Its 205 x 76 x 40 mm enclosure has a different mounting envelope from the shorter, wider MV-WA0003. Compare the enclosure drawing with the available space before choosing between them; a matching adjustment method does not mean the fixing points or cable routes are interchangeable.
Check the enclosure against the installation drawing
| Specification | MV-WA0004 |
|---|---|
| Enclosure material | 304 stainless steel |
| Overall size | 205 x 76 x 40 mm |
| Adjustment | Signal trim |
Allow for more than the closed enclosure. The installer needs access to remove the lid, identify terminals and handle the incoming cables without pulling on their connections. Request the fixing-hole pattern and entry details; neither can be obtained reliably from the overall dimensions alone.
Compare the two stainless steel configurations
MV-WA0003 also uses a 304 stainless steel enclosure and signal trim, but its overall size is 153 x 112 x 36 mm. Use the actual cabinet or scale-frame drawing to decide which envelope fits. There is no basis for promising better measurement accuracy simply from the housing shape.
For an existing scale, record the indicator model, sensor count and present terminal assignments. Confirm the signal, excitation and any sense connections against the proposed box diagram. The cable-entry count is not a specification for every supported sensor wiring arrangement.
Keep mechanical faults out of the trim adjustment
Signal trim is used to adjust a load-cell channel's contribution to the combined reading. It should not be used to hide a support that binds or a platform that touches the surrounding structure. Check those conditions before comparing the response to a known load at different positions.
After a box replacement, verify zero, loaded response and repeatability using the scale's commissioning procedure. Retain the readings and the final connection diagram. The junction-box adjustment guide explains why corner checks must use a consistent test load rather than equalising empty-scale signals.
Mounting and replacement questions
Q1. Does 304 stainless steel establish the box's washdown rating?
No. Material, lid sealing and cable-entry sealing are separate properties. State the cleaning method and chemical exposure, and obtain the relevant enclosure and gland specifications before approving the installation. A material description cannot be substituted for an IP rating.
Q2. What should accompany a replacement enquiry?
Include photographs of the old terminals and mounting, its connection diagram, the sensor and indicator models, and the reason for replacement. Also provide cable diameters and service access constraints. These details allow the proposed circuit and mechanical fit to be reviewed separately.
Request pricing for MV-WA0004 with the required quantity and installation drawing. Ask for the supplied configuration's mounting and wiring documents as part of the quotation, rather than treating the enclosure photograph as a replacement approval.
