Johnson three-phase digital ammeter

Overview of Johnson Three phase Digital Current Meter: Johnson Intelligent produces multiple models and specifications of Sanxiang Digital Current Meter,The commonly used Sanxiang digital ammeter includes the 96 type and 72 type. The following are the performance parameters of the product, as follows:

Johnson Intelligent uses AC sampling technology for true effective value measurement of three-phase current, which can simultaneously measure and display the three-phase current in the power grid. Programming and magnification can be set through panel buttons, making it highly cost-effective. It has the characteristics of easy installation, simple wiring, convenient maintenance, small engineering quantity, programmable input parameters on site, and can complete network communication with different PLCs and industrial control computers in the industry.

External dimensions

Type 96: Frame (mm): 96 * 96 Hole (mm) 91 * 91 Depth (mm) 78

Parameter function

Basic functions: three-phase I, RS485/Modbus, color screen LED display

Extended functions: 4DI (K), 2DO (O), 2AO (M)

Compliant with standards

GB/T 13729_2002 Remote Terminal Equipment
IEC61000-4-2:1995 Electrostatic discharge immunity test level 3
IEC61000-4-4:1995 Electrical fast transient burst immunity test level 3
IEC61000-4-5:1995 Surge Immunity Test Level 3

operation parameters
Working power supply: 85VAC~265VAC/85VDC~265VDC, power consumption<>
Analog sampling rate: 64 points per cycle
Supporting wiring methods: three-phase four wire system 3CT, 1CT and three-phase three wire system 3CT, 2CT, 1CT
RS485 communication: Supports Modbus protocol, communication rate (60012002400480096019200), maximum node capacity of 32
Communication response time: 20ms (9600bps)
Operating environment: -20 ℃~60 ℃
Humidity: 95% without condensation
Insulation complies with DL478, vibration complies with GB7261-87, and anti-interference complies with GB6162;
Protection level: Panel IP54, shell IP20.
Weight: 0.5Kg
Tracking frequency range: 45~65Hz (resolution: 0.02Hz);
Accuracy: The acquisition part (U, I) is at level 0.2, and the calculation part (P, Q, S) is at level 0.5; (Please specify when ordering at level 0.2)
Electric pulse output: active pulse and reactive pulse output;
PT frequency input: 220V on the secondary side or standard 100V (input continuously overloaded to 1.25 times the rated value)
Primary side 100V~35000V;
CT rated input: 5A/1A (continuously overloaded to twice the rated value), (indicate the required type when ordering)