Introduction 1 Overview 1.1 Usage FPS-1 explosion potentiostat is mainly used for pipes, cables, storage tanks and other metal structures or equipment to implement impressed current cathodic protection equipment and application environments with explosion-proof requirements of the occasion. 1.2 Main features: 1.2.1 equipment used in oil-type cabinets and flameproof control cabinet combination of structure, so that the whole device to reach the national standard, "Electrical equipment for explosive gas atmospheres" requirements. 1.2.2 The state has run automatic switching function, when the instrument is not due to external reasons for implementing a constant potential protection, it will automatically switch to the current value of the pre-set to a constant-current protection; when unable to implement constant protection, it will automatically cut off output. 1.2.3 interference and lightning performance has greatly improved the reliability of the equipment. 1.2.4 with self-test function, easy attribution failure. 1.2.5 The instrument uses a push-button operation, multi-table multi-parameter while the digital display, simple and intuitive control. 1.2.6 with remote working parameters and working conditions; work and setpoint function remote control, easy to connect to the computer intelligent management. 2.1 Operating conditions 2.1.1 Ambient temperature: -30 ℃ ~ + 50 ℃; 2.1.2 Relative Humidity: 15% ~ 90%; 2.1.3 Atmospheric pressure: 86KPa ~ 106 KPa; 2.1.4 Power supply: single-phase 220 × (1 ± 10%) V, three-phase 380 × (1 ± 10%) V, 50 × (1 ± 5%) Hz; 2.1.5 Load: Class I; 2.1.6 proof grade: Exod IIB T5 ; 2.1.7 Protection class: IP65. 2.2 General requirements for the whole electrical parts, installation and wiring and housing quality components shall comply with national safety standards and requirements related to the product design pattern. The whole surface should not have a significant dents, cracks, deformation phenomena, surface coatings should not have blistering, cracking, loss and wear; there should be no metal parts to rust and other mechanical damage. 2.3 Safety Requirements 2.3.1 Insulation resistance power input to the insulation resistance between the cabinet should not be less than 10MΩ. "Zero pick yin" of the insulation resistance between the cabinet should not be less than 10MΩ. "Cathode" insulation resistance between the cabinet should not be less than 10MΩ. 2.3.2 Dielectric strength between power input and the instrument chassis can withstand 1500V, 50Hz 1min duration of the test voltage. Should not appear flashover or breakdown. 2.4 Functional requirements 2.4.1 Manual switching function can be manually switching between the instrument constant potential and constant current work status. 2.4.2 If the instrument automatic switching function does not work in a state of constant potential, lasts longer than 20 seconds, you should be able to automatically switch to the constant current work status. 2.4.3 Self-test function when not connected to an external load, the instrument select the "self-test" operation, the instrument should work under constant potential and constant current state; under constant current state, when the output voltage indication than (12 ± 2) V, should automatically stop working to protect the machine load. 2.4.4 Failure automatic shutdown when the instrument fails to work, the red light is on, the instrument will automatically stop working, and the alarm beeps, for 1 to 2 minutes after the working status LED is off. 2.4.5 restore function to restore power after a power interruption, the instrument can be under the protection of the current value of the original set of constant current job. 2.4.6 overcurrent protection rating when the output current reaches 105% to 110%, the instrument should be automatically cut off the output current when the overcurrent reason to eliminate, over about 5 seconds the instrument should automatically resume output. 2.4.7 phase protection function when any one phase of the three-phase power supply is disconnected, the instrument automatically stop working. 2.4.8 When overheating protection function within the instrument cooling oil temperature reaches (85 ± 5) ℃, the instrument should be able to automatically cut output. 2.4.9 When the cooling oil spill protection so that the oil level is below the leak indicator line, the instrument should be able to automatically cut output. 2.4.10 remote instrument operating parameters were collected output voltage, output current, protection potential parameters remote to your computer, transfer accuracy should be better than ± 1%. 2.4.11 remote control for a given instrument at a constant potential mode of operation by remote control computer settings controlled potential value, or preset constant value under the constant current mode of operation, remote control accuracy should be better than ± 1%. 2.4.12 remote control work the way a computer can be remotely controlled instrument is switched on or off; remote control devices operating in the constant potential or constant current state; setpoint remote control of the instrument is a remote control or internal control. 2.4.13 working condition remote 2.4.13.1 instrument oil temperature below 85 ℃ or above 85 ℃, the corresponding transfer "oil normal" or "oil temperature is too high"; 2.4.13.2 power three-phase or phase to normal, corresponding Transfer "Power without phase" or "power phase"; 2.4.13.3 supply voltage fluctuation is less than ± 15% or greater than ± 15%, corresponding to convey "the supply voltage normal" or "abnormal supply voltage"; 2.4.13.4 less than the rated output current 105% greater than the nominal value or 105%, corresponding to convey "no output overcurrent" or "output overcurrent"; 2.4.13.5 rated output voltage is less than 110% or 110% greater than the rated value, the corresponding transfer "Output no over- "or" output overvoltage. " 2.5 Performance Requirements 2.5.1 output voltage and output current range of adjustable output voltage range is not narrower than 2% UdN ~ UdN (V); adjustable output current range not narrower than 1% IdN ~ IdN (A). 2.5.2 Constant potential control range of the instrument operates in constant potential mode, constant potential value should be continuously adjustable within 0mV ~ -3000mV range. 2.5.3 potentiostat precision instrument approach at a constant potential to protect potential 0mV ~ -3000mV constant potential range accuracy should be better than 5mV. 2.5.4 Input impedance input reference input impedance should not be less than 2MΩ. 2.5.5 Changes in anti-frequency interference characteristics relative reference electrode is protected join between body cathode 50Hz, 50V interference voltage protection potential value of not more than 5mV. 2.5.6 Constant current setting range of the instrument operates in constant current mode, the control current to be continuously adjustable in 1% IdN ~ IdN range. 2.5.7 Constant Current precision instrument works in constant current mode, 2.5.6 within the specified operating range of constant current, constant current accuracy should be better than 1% ± 20mA. 2.5.8 The instrument is rated output ripple factor status, its ripple factor should be less than 15%. 2.5.9 lightning protection equipment extreme yang, yin extreme, the reference junction is applied to the magnitude of 1.5 to 2.0 million volts, repeat cycle 1 ~ 5 (s), the pulse width of the pulse wave 25μs, the time of 1min, the instrument should be able to working properly. 2.5.10 instrument drift 24h continuous work under rated working condition, protection potential change in value should be less than 10mV, changes in current value should be less than 1%. 2.5.11 2.5.11.1 operating instructions and precision instrument equipped with digital meter, which can display the output voltage, output current, protection potential and other parameters, display accuracy of better than 0.5%. Meanwhile instrument uses color indicators show the status of each job. Each work 2.5.11.2 instrument using push-button operation. 2.5.12 terminal, terminal equipment junction box mounted AC power input and output anode, cathode output, zero access overcast, the reference input terminal communications network lines, terminals, terminal size to meet the cable cross-sectional area The requirement that the instrument output specifications. 2.5.13 chassis and chassis surface using electrostatic spray coating corrosion protection, protection class IP65. 2.6 Dimensions (mm): 890 (width) × 1600 (height) × 1150 (D) 2.7 Cooling oil: on the 25th of transformer oil (GB2536-90), 520 (l) 2.8 Weight: 1000kg 2.9 Specifications Power Specifications Rated output voltage Rated output current three-phase 380V ± 10% 50Hz 20V 400A 50V 200A 100V 100A