Easy to Operate: When measuring ground system with loop, there is no need to disconnect the ground wire without auxiliary electrode, r and faster.
Precision Clamp Head Design: Using precision iron core and winding, stable, precise and strong -interference. Clamp Size: Φ1.26"(32mm), large jaws with double insulation for extra ty.
Data Storage Function: 500 sets of measurement s can be recorded, the "MEM" storage indication, flashing the "MEM" indicating that the storage is full.
Multi Practical Functions: New design, panel operation with 6 buttons, better performance. With real-time clock, data storage, data access, alarm, automatic shutdown and other functions.
Widely Used: It is suitable for measuring all kinds of telecommunications, electric power, meteorology, hine room, oil field, power distribution lines, tower transmission lines, gas stations, factory grounding network, rob and other grounding resistance.
وصف
(ST4800)
Resistance Resolution: 0.001Ω
Current : 0.00mA-30.0A (ST4800)
Current Resolution: 0.01mA
Clip Size: 55mm x 32mm
Time Clock Feature: Have
Ω + ASynchronous Display: Ω + AThe same screen display
Display Mode: 4-bit LCD display, black screen design
LCD Size: 46mm x 36mm
Measure Time: 1 Time/second
Data Storage: 500 groups, the "MEM" storage indication, flashing the "MEM" indicating that the storage is full
Data Access: The "MR" indicates when reviewing the data
Over Display: OL indication when over over
Disturbed Test: Automatic identify the interference signal, indicating the "NOISE" when the interference current is high
Alarm Function: Send an alarm prompt when the measured value exceeds the alarm set point
Cell Vole: Battery power is displayed in real time
Auto Shut Off: It can be set to 5, 10, 15, 20 minutes, OFF, OFF means to cancel the automatic shutdown, the default is 5 minutes
Power Dissipation: 115mA Max
Working Temperature and Humidity: -10℃~40℃; lower than 80%RH
Storage Temperature and Humidity: -20℃~60℃; lower than 70%RH
Insulation Resistance: 20MΩ above (Between the circuit and the housing 500V)
Withstand Vole: AC 3700V/rms (Between the circuit and the housing)
External Magnetic Field: <40A/m
External Electric Field: <1V/m
Suitable For ty Regulation: IEC61010-1(CAT III 300V, CAT IV 150V, degree of pollution 2); IEC61010-031; IEC61557-1 (earthing resistance)
Item Size: 295 * 85 * 58mm / 11.61 * 3.35 * 2.28in
Item Weight: 888g / 1.96lb
Package Weight: 1970g / 4.34lb
Package Size: 35 * 13 * 21cm / 13.78 * 5.12 * 8.27in
Package List:
1 * Earth Resistance Tester
1 * Aluminum Case
1 * Measuring Ring
1 * User Manual (English)