Safety - MHT410

MHT410 Quick Guide

Document code
English (United States)
Document type
User guide

Vaisala Moisture, Hydrogen and Temperature Transmitter MHT410 for Transformer Oil delivered to you has been tested for safety and approved as shipped from the factory. Note the following precautions:

Read this whole guide carefully before installing the product.
WARNING Ground the product and verify installation grounding periodically to minimize shock hazard.
DANGER Severe risk of death and of damage to transformer:

Pay attention to transmitter installation depth and possible energized parts inside the power transformer to minimize electric shock hazard and equipment damage.

CAUTION Do not modify the unit or use it in ways not described in the documentation. Improper modification may lead to safety hazards, equipment damage, failure to perform according to specification, or decreased equipment lifetime.

Do not try to close the ball valve when the transmitter is fully installed. The probe body goes through the valve into the oil flow, and trying to close the valve will damage the probe body and/or the valve.

If you must close the ball valve while the transmitter is on the valve, first open the small tightening nut and pull the probe body out as far as possible. Then close the valve.

CAUTION To avoid damage to the installation valve of the transformer, do not step on the transmitter when the transmitter is installed.
CAUTION Follow the safety regulations related to the application and installation site.