- Contact Person : Ms. Si Lisa
- Company Name : Henan Defy Electronics Co., Ltd.
- Tel : 0086-371-55819257
- Fax : 0086-371-66770722
- Address : Henan,Zhengzhou,7/F, Building 68, Enterprise Headquarters Base, High-Tech Development Zone
- Country/Region : China
Scanning Head for Meter Test
Scanning Head for Testing the Accuracy of Meters
I. Introduction
DFP307 onsite smart photoelectric sampler owns the advantages of small volume, long service life, high sensitivity, large range adjustment, convenience in operating and strong antijamming capability. It's the ideal photoelectric sensing device and widely used for the testing of accuracy on mechanical and electronic meters.
II. Features
1. Overall power consumption is less than 13.5mA, specially applicable to the handheld equipment.
2. Ultra-small size, diameter is only 3cm.
3. Mechanical sucker structure, firm suction ability, more convenient to disassemble.
4. Compatible with mechanical and electric meters, trigger switch, working state memory when power-down.
5. Color direction, good visibility.
6. Manual switch function.
7. Sampling rate is up to 100Hz, can meet the demand of meter sampling greatly.
8. Auto-adaptation to site light-dark cycle, can inhibit the burst-interference of lights.
9. Special single chip design, stable and reliable.
III. Specifications
1. Working voltage: DC4.5-6V
2. Working current: 13.50mA
3. Power consumption: ≤0.25W (when no load)
4. Sample distance: 25-45mm
5. Output signal: high level≥4.5V (with black mark)
low level≤0.2V (without black mark)
6. Output current: 3mA-5mA
7. Anti-interference: deburring≤3.0mm
8. Sampling rate: 100Hz
IV. Operating Instruction
1. Placing the photoelectric sampler in any position of checked meter dial.
2. Rotating the photoelectric sampler, to make the center of three spots aim at checked meter dial or pulse output light of electronic meter.
3. In right state and position, the photoelectric sampler will take samples automatically, without manual adjustment.
4. Switching working state: press the red reset button for 1.5 second, then the sampler will switch working state between mechanical and electronic.
5. With manual switch function, the active light blinks in the state of manual switch. Pressing the reset button once will trigger output a pulse.
V. Working State
Indicator Color | State |
Green | Mechanical meter |
Red | Electronic meter |
Orange | Manual switch |
Scanning Head for Meter Test
