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1.2 Main Specifications of LCD Card Dimensions: Approx. 70×70 mm
Supply voltage: 12V ~ 32V DC;
Power influence: not more than 0.01%/V;
Output load change: no more than 0.05% (50 to 1000 ohms, lower limit and range variation);
Accuracy: ≤±1%;
Stability: ≤±0.2%;
Operating temperature range: -20°C to +70°C (with backlit LCD display);
-40°C to +85°C (without LCD display);
Temperature effect: ≤±1%/50°C;
Optional Intrinsic Explosion Proof: Explosion-proof grade iaIICT5.
1.3 H8250FZ main function output: 4 ~ 20mA output, superimposed HART communication;
Diagnostic function: When the instrument fails, output the alarm output current;
Configuration function: configuration of engineering unit, measured medium, medium density, float density, range, display, alarm value, etc.; and has the function of clearing accumulated flow and zero point correction;
Alarm function: The alarm upper and lower limits can be set. Below the lower limit output 3.8mA; above the upper limit output 22mA.
Monitor dynamic variable functions: Instantaneous flow, percentage, output current, cumulative flow, etc.
Current calibration function: The analog output current can be calibrated;
Flow calibration function: 2 to 16 points can be selected;
Local configuration function: Configuration of engineering unit, measured media, medium density, float density, range, display, alarm value, etc., and has the functions of clearing accumulated flow, zero point correction, and data recovery;
On-site current fine-tuning: 4 mA and 20 mA current trim can be performed. Realized by pressing a key.
Liquid crystal display function: dual-line LCD display, can display instantaneous flow and cumulative flow, can also display the current, percentage and so on. Data backup and recovery: After the manufacturer configures and calibrates the instrument, backs up the manufacturer's original information. If the meter is not working properly due to the user's illegal adjustment at the scene, the input damping “5678†is transferred to the manufacturer’s factory information, and the user is illegally covered. Error message, normal operation.
The instrument has the power-off protection function and the flow accumulation function. Note: The factory default configuration of the board is the on-site configuration adjustment function. The user can set the local current fine-tuning function. 
Our company's metal tube float flow meter with remote signal standard dial with LCD display, its specific specifications are as follows: 1.1 Technical support intelligent float flow meter card dedicated to high-performance HART protocol intelligent metal rotor (float) flow transmission Device. If there are unclear areas or other problems during use, please contact us in time. The company will reply as soon as possible and solve your problem.