Johnson single-phase digital ammeter

Overview of Johnson single-phase digital ammeter: Johnson Intelligent produces multiple models and specifications of Sanxiang digital ammeter,The commonly used Sanxiang digital ammeter includes48 * 48 specificationHere are the performance parameters of the product, as follows:

External dimensions

Type 48: Face frame (mm) 48 * 48 hole (mm) 45 * 45 depth (mm) 60

Parameter function

Basic functions: single-phase I, LED display

Extended functions: RS485 (C), 1AO (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)

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