1. Overview

 The new GDS-5B clock tester is suitable for precisely testing all kinds of clock circuits with crystal oscillator working at 32.768KHz and 1Hz, for example: quartz clocks、electronic watt-hour meter、motherboard、temperature controller、timer、electronic weigher and electronic cash register with timer function. Its appearance is depicted as Figure.1.

Figure.1  GDS-5B clock tester

GDS-5B clock tester especially suits the fast testing of finished products or semi-finished products. GDS-5B’s RS232 interface can be used to connect GDS-5B and computer in order to gather testing results. Additionally, our GDS-B clock tester has a tinny probe with it, which can suits the testing of bigger circuit boards.

GDS-5B has five stalls:

1. ppm：part per million, accurate to 0.1ppm
2. s/d：seconds/day, accurate to 0.01 seconds
3. s/m：seconds/month, accurate to 0.1 seconds
4. s/y：seconds/year
5. F:32.768KHz frequency deviation

Compared with the same type of products from other companies, our GDS-5B has the following advantages:

1. with a more sensitive sensor in it to receive weak signal;
2. taking non-contact method;
3. thinner shell making it more easy to use and more suitable for the pipeline;
4. with advanced CPU and TCXO(Temperature Compensated Crystal Oscillator);
5. with a 16-level signal strength indicator;
6. with the function of alarming, and the user can set alarming range;
7. easy setting procedure;
8. accuracy is better than 0.2ppm;
9. extra：RS232 to connect GDS-5B to a computer

2. Features

1. measuring objects: quartz clock、electric meter and clock circuit board
2. voltage:220V AC 50Hz
3. testing frequency: 32.768KHz 1Hz 
4. measurement period :1s、2s、5s、10s、20s、32s、60s
5. reference frequency:16.384MHZ TCXO      
6. testing accuracy: better than 0.2ppm
7. range: ppm：part per million; s/d：seconds/day; s/m：seconds/month; s/y：seconds/year; F:32.768KHz frequency deviation
8. signal strength indicator:16 level indicator
9. alarming setting range:±200ppm
10. volume: 13cm×27cm×29cm
11. display mode: four-digit LCD display
12. extra: RS232 to connect GDS-5B to a computer