A water quality meter with a cleaning device attached to a water quality meter and a cleaning function

摘要

To provide a water quality meter which reliably removes pollutant substances and prevents breakdown of motors, deceleration mechanism and the like, improves reliability over a long period, and can manufacture at low cost. SOLUTION: The cleaning apparatus 20 is immersed in water to be tested, and is attached to a sensor part 100 of a water quality meter 10 for measuring water quality of test water. A swing shaft 152 protruding from the front end face of the main body, a wiper arm 153 provided at the tip of the swing shaft, and a wiper arm 153 attached to the wiper arm, and is in contact with the test water as the swing shaft rotates in forward and reverse directions A wiper blade 154 reciprocatingly oscillating on the surface of the sensitive portion 122a of the sensor portion to wipe away pollutant adhered to the surface of the sensitive portion, a stepping motor 151 accommodated in the main body and having a drive shaft directly connected to the swing shaft, At least one stopper 155, 156 provided on the front end face of the wiper arm for regulating the reciprocating range of the wiper arm, and a pulse generator 150 for supplying a pulse to the stepping motor. (FIG.