Can a tuning fork be used for hydrochloric acid storage tanks?
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Our factory uses tuning forks in the storage tanks for storing concentrated hydrochloric acid; however, the alarm goes off frequently due to acid mist. Are tuning forks not suitable for this purpose?
You’ve already explained the issue very clearly; don’t you know yet whether it applies or not?
Attention should be paid to the installation method: the tuning fork must be vertical to prevent liquid from accumulating on it. Additionally, the sensitivity can be adjusted and tried out
Generally, to reduce the insertion depth and prevent shaking (as the device has a stirrer), it is common to install the tuning fork from the side. If there are false alarms due to hanging liquid, it’s better to use a float switch.
Float level switches that are not suitable for being fitted with fluorinated linings – they’re cheap; one fork-type sensor is enough to replace ten float switches. They require little maintenance, and even if they break down, replacing them once a year will suffice for a decade!
Do you use hydrochloric acid there, or is hydrochloric acid produced as a by-product?
When specifying the gauge, inform the manufacturer of the density and viscosity of the substance being measured; they will then select an appropriate anti-condensation type. If that’s not possible, a capacitive, fluorinated level switch can be used instead.