- 品牌/商标：上城科技
- 企业类型：制造商
- 新旧程度：全新
- 原产地：浙江省
1.1 Usage
SCD914U, SCD915U， SCD914I，SCD915I Series digital display voltmeters(ammeters) are a new generation of programmable economy digital display mounted meters , which are mainly used in the real-time measurement and indication on AC or DC voltage(ammeter) in an electric circuit . With features of high precision, good stability and calibration-free long-term operation, onsite parameter setting on a panel, it is an idea substitute of traditional dial
instrument or ordinary digital instrument.
1.2 Feature
● Adopt SMT product techniques, compact circuit, high reliability;
● AC sampling, RMS measuring mode, wave distortion doesn't effect the accuracy rate;
● With overrun alarm contact output function, the higher and lower limit alarm are programmable.
● Setting function of alarm delay time;
● Display multiply power is programmable and apply to transformer with several specifications.
● Setting function of digital filtering time
● Unique method of installation, can complete the installment easily without tool;
● With performance of intelligent meters, price of common meters, high cost performance.
3.1 Measuring range
3.1.1 SCD914U programmable AC voltmeter
Direct measurement： AC 1～100V、AC 5～600V
Accessory device： AC */100V（The PT rate can be freely programmed）
3.1.2 SCD915U programmable DC voltmeter
Direct measurement： DC 0～±600V
3.1.3 SCD914I programmable AC Ammeter
Direct measurement： AC 0.01 ～1A、 AC 0.05 ～6A
Accessory device： AC */1A、AC */5A（*/5A current transformer is necessary the measuring range can be freely programmed）
3.1.4 SCD915I programmable DC Ammeter
Direct measurement： DC 0～±6A
Accessory device： DC -1999 ～+9999A （*/75mV shunt is necessary
3.2 Accuracy rating: ±0.5%FS±1digit
3.3 Sampling rate: AC once per second, DC twice per second.
3.4 Frequency range of input signal ( AC current or voltage): 45~65 Hz
3.5 Display resolution: Max. display resolution of voltage is 1V, Max. display resolution of current is 0.001A
3.6 Input circuit consumption：current＜0.5VA, voltage＜1VA
3.7 Auxiliary power supply：AC 220V±10% 50/60Hz
3.8 Auxiliary supply consumption：＜3VA
3.9Overflow indication：Displaying character “HHHH”or “LLLL”
3.10 Alarm Output: Higher and lower limit alarm output via the same relay contact, contact rating AC250V/1A、DC30V/1A
The measuring value blinks at the same time of executive alarm operation.
3.11 Operational environment: places free of gas corruption with temperature of -10~50℃, and relative humidity≤85%RH.
