Introduction 1 Overview PS-1 potentiostat widely used for soil, water, fresh water, chemical medium pipes, cables, Steel Pier, gates, ship, bad storage, storage tanks, coolers and other metal structures or equipment to implement additional current cathodic protection, and its advanced technical performance, high reliability and long service life. Enterprise Standard: Q / FCLD002-2009. 2 The main technical performance 2.1 2.1.1 Environmental conditions Operating temperature: -15 ℃ ~ + 45 ℃; 2.1.2 Storage temperature: -40 ℃ ~ + 55 ℃; 2.1.3 Relative Humidity: 20% ~ 90% RH; 2.1.4 Atmospheric pressure: 60KPa ~ 120Kpa; 2.2 Safety Requirements 2.2.1 Insulation resistance: power line relative to the housing of the instrument insulation resistance of not less than 10MΩ. 2.2.2 Dielectric strength: the power line to the instrument chassis can withstand 1500V (RMS), the test voltage of 50Hz for 1min no flashover and breakdown. 2.2.3 Isolation voltage: "Zero pick yin" terminals of the instrument on the "far-off control signal" port can withstand 750V (RMS), the test voltage of 50Hz, which lasted 1min, no flashover or breakdown occurs. 2.3 Instrument printing plate using three anti-treatment, moisture, salt spray, anti-bacterial. 2.4 Instrument Design life: not less than 20 years. 2.5 Power Supply: AC single phase AC220V ± 10% 50Hz ± 10%, when the input voltage is 110% of the nominal value of the instrument can work properly. 2.5.1 Power Input features: power within the rated voltage of ± 10%, 50Hz ± 10% range, protection potential change in value of less than 5mV. 2.6 Instrument Rated output voltage 0 ~ 50V, rated output current 0 ~ 30A. 2.7 using thyristor rectifier elements potentiostat ripple factor at full load is less than 2%. 2.8 operating status: Long-term continuous operation. 2.9 operating modes: manual adjustment operation mode, constant potential mode of operation, the constant current mode of operation, run-off mode. 2.9.1 Manual operation modes: manual continuously adjustable output current. 2.9.2 potentiostatic mode: Constant potential control range can be continuously adjustable within 0mV ~ -3000mV range. 2.9.3 constant potential accuracy: Accuracy 5mV. 2.9.4 protection potential drift: instrument rated state run, protection potential value change is not greater than 5mV. 2.9.5 When the constant current operation status when the reference electrode inside the instrument automation line failure or damage other reasons can not work a constant potential, the instrument automatically switches from the constant potential of the working state to the constant current operation, constant current value can be rated 1% to 100% within a preset range, constant current accuracy of better than 1%. 2.9.6 Alarm function: When the instrument is abnormal, automatic sound and light alarm. 2.9.7 Immunity characteristics: between "reference electrode" terminal and the "zero access yin" terminal join AC 30V or 24V DC voltage interference, the instrument can work properly to protect the potential change in value is not greater than 5mV. 2.9.8 Soft Start: The instrument has a soft start function, when turned on, the output current is slowly increased until it reaches the pre-control value, without the impact of current phenomenon. 2.10 Reference Input impedance: Input impedance is greater than 1MΩ. 2.11 potential error alarm function: When the protective potential deviation from the control circuit 30mV ~ 100mV, the instrument can sound and light alarm. 2.12-current protection: When the output current of 102% to 110% of rated output current value, the instrument automatically limiting the working state, concurrent sound and light alarm. 2.13 instrument in the power input and output terminals equipped with a fuse, when the output overload or short circuit occurs, turn off the power. 2.14 2.14.1 with manual power-off test function and remote control function of cathodic protection status, work status that is continuous and intermittent power output during the test (pass 12S, off 3S) state. 2.14.2 switch-selectable power-off test, the test instrument into an intermittent output state, pass 12 seconds, three seconds off. 2.14.3 remote control power failure test: instrument in working condition when a constant potential or constant current operating status, receive remote control on-off signal, the instrument automatically enters the intermittent output of test status, pass 12 seconds, three seconds off. Remote controlled response time of less than 50ms. 2.14.4 In the test period, the output current is interrupted 3S no alarm, the current impact of the phenomenon does not occur when you turn off the state from. 2.15.1 2.15 meter measurements using precision of ± 0.5%, respectively ,, digital meter to measure the output voltage, output current, the tube to (protect) potential display range greater than 115 percent rating. 2.15.2 AC input voltage can be monitored. 2.16 insulated transformers for security, compliance with IEC742. 2.17 2.17.1 silicon rectifier elements composed by silicon rectifier bridge rectifier circuit, silicon rectifier elements left margin three times the rated current, reverse breakdown voltage of 1200V, each element has a protective silicon rectifier unit. 2.17.2 nameplate: the apparent position of the instrument box, bolted to a permanent metal nameplates, nameplate including name and address, product number, product type, product name, date of manufacture, rated input, rated output value, Run mode. 2.17.3 strong electric instrument parts have "dangerous electrical" in Chinese label. 2.18 grounding terminal: bolt with a nut, can be connected to 35mm2 wire. 2.19 Lightning Protection 2.19.1 instrument input, the output circuit is equipped with lightning protection and comply with the provisions of IEC1024 and BS6651. 2.19.2 In the instrument output anode terminal, a cathode terminal output relative ground for the introduction of magnitude 1.5 to 2.0 million volts, repeat cycle 1 ~ 5S, 25mS pulse width of the pulse wave, the time of 1min, the instrument can work properly. 2.19.3 line between anode, cathode lines: limiting voltage: 100 ~ 150V; overvoltage current capacity 10KA (8 × 20μS), leakage current ≤20mA. 2.19.4 anode line between the zero line: limiting voltage: 100 ~ 150V; overvoltage current capacity 10KA (8 × 20μS); leakage current ≤20mA. 2.19.5 reference, between the zero line: limiting voltage 5V; overvoltage flow capacity of 54A (10 × 1000μS); leakage current of less than 0.3μA (3V). 2.19.6 reference input the anti-interference moment: the reference input of the moment after the overcurrent withstand 1000V, the instrument can still work. 2.20 Cooling: air-cooled, cabinet bottom and left sides have vents, vents fitted with protective nets can prevent insects from entering. 2.21 Chassis: in 2mm cold rolled steel plate, shell with epoxy powder electrostatic spraying, protection class IP54, instrument all connectors, controls, knobs and so to take security measures. Around 2.22 each with a lockable cabinet door, and with two special keys. 2.23 Cabinet color according to user requirements. Has a power switch and power indicator and function buttons on the instrument panel 2.24. 2.25 posts: back of the instrument is equipped with an AC input, output anode, cathode output, zero access overcast, the reference input, remote control through disconnection imports, chassis grounding terminal. Input and output terminals and the ground terminal of the instrument using copper or copper terminal bolts, nuts and washers and with the required specifications and rated output current cable to adapt. 2.27 Impact: meet IEC1024 standard. Dimensions: 440mm (width) × 1085mm (height) × 470mm (thick)