Brief introduction: Capacitive smart differential pressure transmitter pressure measuring instrument based on microprocessor as the core, consult the foreign advanced technology, using high quality imported components and advanced design principle, the use of microprocessor technology for temperature characteristic and the nonlinear compensation, so as to improve the measurement precision of instrument, to improve the temperature characteristic, has good long-term stability, high reliability, etc.. The products are widely used in petroleum, chemical industry, electric power, pulp, paper, city gas, iron and steel, machinery, shipbuilding and other industrial fields. Product features: High precision, good stability; B range, zero external continuous adjustable; Anti-rf and electromagnetic interference; Good protection for unidirectional overload; Explosion-proof structure, all-weather use; Intelligent HART field bus protocol. Technical indicators: Measuring medium: liquid, gas Measurement range: range 3 0-1.3~7.5kPa Range 4 0-6.2 ~ 37.4 kPa The range 0 to 5 31 ~ 186.8 kPa Range 6 0-117 to 690 kpa Range 0-345 to 2068 kpa Range 8 0-1170 to 1170 kpa Accuracy: + / - 0.1% URL + / - 0.2% URL Signal output: HART is superimposed by 4~20mA 4~20mA Power supply voltage: 24VDC(12VDC~45VDC) explosion-proof type: 12-28vdc Stability: 6 months + / - 0.1 URL Medium temperature: - 40 ~ + 100 ℃ Storage temperature: - 40 ~ + 100 ℃ (without LCD header) - 40 ~ + 70 ℃ (with LCD header) The whole machine working temperature: - 40 ~ + 85 ℃ (without LCD header) - 30 ~ + 60 ℃ (with LCD header) Ambient temperature: -0~-100% relative humidity Temperature effect: + URL (0.2% + 0.18% test range) / 56 ℃ Power supply impact: less than 0.0059%/V of the output range Load effect: there is no load effect unless the supply voltage changes Vibration effect: at 200Hz up any axis, the vibration effect is + / 0.05%URL/g EMI/RFI influence: from 20 to 1000MHz, when the field intensity reaches 30V/M, the output drift is less than plus or minus 0.1% range Influence of installation location: the maximum zero drift is plus or minus 0.25kPa, all zero drift can be corrected; Impact on range closure Zero positive and negative transfer: when zero negative transfer occurs, the lower limit of the range must be greater than or equal to -url; When zero point positive migration, the range must be less than or equal to +URL. The check range must be greater than or equal to the minimum range 0 and range: the range and range of the machine can be adjusted by the zero button, or by HART handheld remote adjustment Static pressure and overpressure limit: the pressure from 0 to 13.79MPa on either side of the transmitter will not cause damage. When working within the upper limit of the range from 0kPa to transmitter, it meets the performance specification requirements Damping time constant: the time constant is adjustable, increasing by 0.1 seconds, from the minimum to 16.0 seconds Explosion-proof grade: intrinsic safety type :Exia II CT6 explosion-proof type :Exd II BT5 Protection level: IP65
Brief introduction: Capacitive smart differential pressure transmitter pressure measuring instrument based on microprocessor as the core, consult the foreign advanced technology, using high quality imported components and advanced design principle, the use of microprocessor technology for temperature characteristic and the nonlinear compensation, so as to improve the measurement precision of instrument, to improve the temperature characteristic, has good long-term stability, high reliability, etc.. The products are widely used in petroleum, chemical industry, electric power, pulp, paper, city gas, iron and steel, machinery, shipbuilding and other industrial fields.
