0102030405
Single Phase Digital Combined Meter | China Suppliers & Factory | Accurate Voltage, Current & Power Measurement
Product Overview
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1.1 Measuring RangeVoltage: Direct measurement: AC 0~600V | Accessory device: AC 0~9999KV (PT */100V)Current: Direct measurement: AC 0~10A | Accessory device: AC 0~9999A (CT */5A)Frequency: 45~65HzActive Power: 0~9999KW | Reactive Power: 0~9999KVarPower Factor: 0.000C ~ 0.500C ~ 1.000 ~ 0.000L ~ 0.500L
- ▶ 1.2 Accuracy Rating Key ±0.5 FS ±1 digit
- ▶ 1.3 Sampling Rate Approx. 1 time/s
- ▶ 1.4 Measuring Display Mode RMS measurement, four-digit LED nixie tube display
- ▶ 1.5 Display Resolution Max. display resolution: 0.001A | 0.1V | 0.01Hz
- ▶ 1.6 Input Circuit Consumption Current < 0.5VA | Voltage < 1VA
- ▶ 1.7 Auxiliary Power Supply AC 220V, 50/60Hz (Other values can be customized)
- ▶ 1.8 Auxiliary Supply Consumption < 3VA
- ▶ 1.9 Overflow Indication Displaying character "HHHH"
- ▶ 1.10 Alarm Output Higher and lower limit alarm output by two groups of relay; contact rating: AC 250V/2A, DC 30V/2A
- ▶ 1.11 Transmitting Output Freely settable: DC 0~10mA, 0~20mA or 4~20mA; accuracy rating ±0.5% FS; electrical isolation between signal input and auxiliary power supply
- ▶ 1.12 Transmitting Output Load Resistance ≤ 500Ω
- ▶ 1.13 Communication Interface RS485 RS485 serial communication, applying MODBUS_RTU communication protocol
- ▶ 1.14 Operational Environment Free of corrosive gas; Temperature: -10~50°C; Humidity: ≤ 85% RH
Technical Parameters
| Function & Shape / Model | Measure & Display | Shape Code (Figure Inside □) | Selected Additional Functions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Current | Voltage | Frequency | ⑧ 80×80 | Current | Voltage | Frequency | 2-Channel Switch Output | Current | |
| SFS-□K2-UI | ● | ● | SFS-□K2-UI | ● | ● | SFS-□K2-UI | ● | ||
| SFS-□K3-UIF | ● | ● | ● | SFS-□K3-UIF | ● | ● | ● | SFS-□K3-UIF | ● |
| SFS-□K3-UIH | ● | ● | SFS-□K3-UIH | ● | ● | SFS-□K3-UIH | ● | ||
| SFS-□K3-UIP | ● | ● | SFS-□K3-UIP | ● | ● | SFS-□K3-UIP | ● | ||
| SFN-□K2-UI | ● | ● | SFN-□K2-UI | ● | ● | SFN-□K2-UI | ● | ||
| SFN-□K3-UIF | ● | ● | ● | SFN-□K3-UIF | ● | ● | ● | SFN-□K3-UIF | ● |
| SFN-□K3-UIH | ● | ● | SFN-□K3-UIH | ● | ● | SFN-□K3-UIH | ● | ||
| SFN-□K3-UIP | ● | ● | SFN-□K3-UIP | ● | ● | SFN-□K3-UIP | ● | ||
| SFN-□K3-UIF+RS | ● | ● | ● | SFN-□K3-UIF+RS | ● | ● | ● | SFN-□K3-UIF+RS | ● |
| SFN-□K3-UIH+RS | ● | ● | SFN-□K3-UIH+RS | ● | ● | SFN-□K3-UIH+RS | ● | ||
Frequently Asked Questions
Q
What is the maximum voltage and current this meter can measure directly?
The meter supports direct measurement of AC 0~600V for voltage and AC 0~10A for current. With accessory devices such as PT and CT transformers, the measurement range can be extended up to AC 0~9999KV (PT */100V) and AC 0~9999A (CT */5A).
Q
What communication protocol does the meter support?
The meter is equipped with an RS485 serial communication interface and uses the MODBUS_RTU communication protocol, making it compatible with most industrial automation and SCADA systems.
Q
Can the transmitting output signal range be customized?
Yes. The transmitting output can be freely configured as DC 0~10mA, 0~20mA, or 4~20mA depending on your application requirements. The accuracy rating is ±0.5% FS, and the signal input is electrically isolated from the auxiliary power supply.
Q
What is the alarm output configuration of this meter?
The meter provides two groups of relay-based alarm outputs for both upper and lower limit thresholds. The contact rating is AC 250V/2A and DC 30V/2A, suitable for a wide range of industrial alarm and control applications.
Q
What are the operating environment requirements for this meter?
The meter should be installed in an environment free of corrosive gases, with an ambient temperature range of -10°C to 50°C and relative humidity not exceeding 85% RH to ensure reliable and accurate operation.
Q
What does the "HHHH" display on the meter indicate?
When the measured value exceeds the display range of the meter, the four-digit LED nixie tube will show "HHHH" as an overflow indication, alerting the user that the input signal is beyond the measurable limit.