2. 14bit ADC resolution, and the display speed can be 2.5 Hz/5 Hz;
3. 1/3 bias and 1/4 duty cycle LCD driver circuit;
4.8 kinds of button interface settings, with on, off, unit, tare, zero, hold and ucal functions;
5. The unit can be set arbitrarily, which can be 10 or 16. Up to four kinds, buttons or switches can be selected to select units;
6. The boot screen can be set at will;
7. Display tare weight, zero point, maintenance and stability signs;
8. Two-point calibration, with optional calibration position;
9. Backlight control output;
10. Low voltage start-up detection and two-point detection (optional detection of internal voltage or external voltage of voltage regulator);
1 1.30 seconds (configurable) automatic shutdown;
12. Power consumption: normal mode ≦ 1.5mA (excluding backlight, buzzer and sensor), sleep mode ≦ 3ua; Power-off mode ≦ 0.5UA;
13 power supply mode. The load cell can choose: use IO port or VS power supply. (Vs power supply can maintain high accuracy even when the voltage drops to low level, but the power consumption is higher than IO).
(24C02 User Settings, convenient for users to modify personality parameters)
OEM will welcome it.
ND30 1。 Portable document format
Weighing scale Fat Scale Weighing Module/Circuit Board/Chip/Solution weighing scale Circuit Module/weighing scale Circuit Board Performance Specification:
High accuracy: 1/3000 ND30 1
6? 1 Weight display accuracy:1500min (can be set);
6? 1 Maximum weighing: 150Kg (can be set);
6? 1 14 bit ADC resolution;
6? 1 1/3 bias, 1/4 duty cycle LCD drive circuit;
6? 1 weighing unit: Kg, lb, ST (press the key to select the unit without ST); ; Optional key or toggle switch for unit conversion;
6? 1 2-4 point calibration, with optional calibration position;
6? 1 sensor time-sharing power supply function (saving about 30% electricity);
6? 1 power saving mode: 10S without operating system shutdown (configurable);
6? 1 power consumption: (condition: 1K ohm load cell, HT24LC02).
(24C02 User Settings, convenient for users to modify personality parameters)
operational current
quiescent current
PT2.6 is connected to the load cell.
Adopt HT7 130 to stabilize the voltage.
About 4.5 mA
≤ 3uA (sleep mode)
≤ 0.3uA (power-off mode)
VS connected to the load cell.
Unsteady pressure tube
About 7.0 mA
≤ 3uA (sleep mode)
≤ 0.3uA (power-off mode)
6? 1 The power supply mode of the load cell can be selected: IO port or VS port. (Vs power supply can maintain high accuracy even when the voltage drops to low level, but the power consumption is higher than IO).
6? 1 Power shortage warning and overload sound alarm;
OEM will welcome it.
ND302.PDF
Portable scales Jewel scales Weighing modules/circuit boards/chips/solutions Portable scales Jewel scales Circuit modules/Portable scales Jewel scales Circuit boards Performance specifications:
High accuracy:1/6000110000nd302a | nd302b.
1. Weight display accuracy: 5000 minutes (settable);
2. 14bit ADC resolution, and the display speed can be 2.5 Hz/5 Hz;
3. 1/3 bias and 1/4 duty cycle LCD driver circuit; (24C02 User Settings, convenient for users to modify personality parameters)
4. There are on/off, zero/tare weight, PCs/mem, cal/mode and light keys;
5. Units can be set at will, up to four;
6. The boot screen can be set at will;
7. Display tare weight and zero symbol;
8. Two-point calibration, with optional calibration position;
9. Backlight control output;
10. low voltage start detection, one point detection;
1 1. 120 seconds (configurable) automatic shutdown;
12. Power consumption: normal mode ≦ 1.5mA (excluding backlight, buzzer and sensor), sleep mode ≦ 3ua; Power-off mode ≦ 0.5UA;
OEM will welcome it.
ND303.PDF
Fishing Scale Weighing Module/Circuit Board/Chip/Solution Portable Scale Fishing Scale Portable Scale Circuit Module/Fishing Scale Circuit Board Performance Specification:
High accuracy: 1/6000 ND303A | ND303B
6? Accuracy of 1: 0.5% (1d).
(10kg/10g, 30kg/10g, 50kg/10g)
2. Range: 10KG (optional).
3. Graduation: 10g (10Kg range).
4. 1/3 bias, 1/4 duty cycle, 3V LCD driver.
5. Three units: kilograms, pounds and ounces.
6. Two-point calibration (the calibration point is set by 24C 02). (The calibration points of this sample are 0, 25 kg and 30Kg)
7. Weak current alarm: 2.5V alarm. During weighing, low voltage shows the symbol of low voltage. At startup, the low voltage displays the battery symbol for 2 seconds, and then turns it off. (This sample is not required)
8. Working voltage: 3V
9. Three buttons: On/Off, Tare Weight and Unit.
10. Idle speed for automatic stop or manual stop 1 min.
1 1. All display modes (except 24C 02 fault mode), weighing parameters and temperature parameters are saved in 24C 02.
12. Temperature data is calibrated by IC. The display accuracy is+/-0.65438 0 degrees Celsius. (24C02 User Settings, convenient for users to modify personality parameters)