Lambda LP-521-FM Regulated Power Supply w Overvoltage protector LHOV-5

Lamda LP-521-FM Regulated Power Supply with Over voltage protector LHOV-5. It appears set to work until 10 Volts by previous user. Last Calibrated 2000. 6130-00-270-8063 Features Overall Length 15.500 inches nominal Overall Height 5.188 inches nominal Overall Width 4.188 inches nominal Input Voltage Rating: 105.0 ac volts minimum single operating power rqmt and 132.0 ac volts maximum single operating power rqmt Output Voltage Rating: 0.0 dc volts minimum single power output and 20.0 dc volts maximum single power output Input Frequency Ratin: 47.0 hertz minimum single operating power rqmt and 440.0 hertz maximum single operating power rqmt Operating Ambient Temp Range: +0.1/+60.0 deg celsius Output Control Quantity: 1 single power output Features Provided: Dc ammeter and dc voltmeter Output Current Rating: 2.3 dc amperes minimum single power output and 3.3 dc amperes maximum single power output