Shenzhen Zhenhua Qunying Electronics CO. ,Ltd.
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Programmable FL2-T 250A Sensing Current Shunt Resistor For AMP Ampere Instrument Panel Black
1. Basic specification
| Product name | DC shunt | Model No. | FL2-F |
| Current range | 250A | Voltage drop | 75mv |
| Accuracy | ±0.5% | Working temperature | -40-+60°C |
| Humidity | <95(36°C) | Trademark | Jinquan |
| Transport Package | 1*DC shunt | Safety standard | IEC61010-1:190 |
| Origin | Shenzhen | Material | Metal, Plastic |
2. Materials
Surface coating: nickel plating.
The surface of the resistor is coated: black amino baking enamel.
3. Basic tolerance grade dimensions section
| Tolerance grade | Basic dimension section | |||||
| 0.5-3 | ＞3-6 | ＞6-30 | ＞30-120 | ＞120-400 | ＞400-1000 | |
| Roughness: C | 0.2 | ±0.3 | ±0.5 | ±0.8 | ±1.2 | ±2 |
4. Attention
(1) Can't be touched the joint of the shunt and cable of primary circuit. Secondary voltage can't be sampled from non-sampling point.
(2) It won't be exceed 80% of rated current for long time working. A loop cable (or copper platoon) and shunt connection doesn't allow someone to contact resistance from the sampling point.
5. what should I do if we measure a large DC current?
A shunt is required at this situation. It is a precision resistor that can pass a large current. When current flows through the shunt, a millivolt-level voltage appears across it, which is measured with a millivolt voltmeter. This voltage, and then converted to the current voltage, complete the measurement of large currents.
The fixed setpoint shunt is a suitable the attached external shunt for measuring for DC current in 10kA less directly acting on the analog display instrument together with the use in order to expand the scope of the for DC current measurement, or sequentially circuit can be regarded as the current sampling with the standard resistors, a sampling voltage is measured with a current can be regarded as an analog signal.
6. Applicable criterion for shunt
| Standards | Contents |
| Environmental standards | Standards for the electronic industry of the People's Republic of China: SJ/T 11363-2006 quantity requirements. Eu: ROHS. |
| Tolerance standard | The tolerance size is not specified in accordance with the national standard for Chinese migrant workers and the national standard: GB/ t1804-2000 rough C execution of general tolerances for linear and angular dimensions without tolerance. |
| Product standard | National standard of the People's Republic of China: GB/ t766-1998 direct action simulation indicator electrical measuring instruments and their accessories professional standard of the People's Republic of China: JB/ t9288-1999 external attachment diverter. |
| Safety standards | IEC61010-1:190 safety requirements for measuring, controlling and laboratory electrical equipment. Part 1: general requirements. |
7. Outside drawing
8. Analogue products below