一、概述
秒表检定仪GDS-50，时间检定仪是一种多功能，综合性的时间检定自动测试装置，它能对机械秒表、电子秒表进行进行检定。秒表检定仪GDS-50，时间检定仪采用高稳定度石英晶体振荡器作为时间基准，用R 单片机和TTL 集成电路为主要元件，大屏LCD显示，旋转编码开关操作，满足JJG237-2010《秒表检定规程》的要求，是一种较理想和实用的秒表检定仪。
二、技术指标
1. 测量范围
1ms------99999.9s
2. 测量误差
秒表：± 3ms
3. 晶体振荡器
准确度：±5×10-7/日
三、工作条件
环境温度：0~40℃ 相对湿度：<80%
FEATUR
Comply with national regulation of calibrating.
Auto time measuring device of multi-function and high synthis
with time base of crystal oscillator of high stability
With advanced FPGA technique and MCU integration control, quick rponse.
LED display with clarity interface, easy operation
suitable for metrological service, factory, academy and scientific rearch institution to calibrate all kinds of timer instruments
Dimension: 255mm×100mm×380mm
Weight: 4.9kg
SPECIFICATIONS
For mechanical swatch and electronic swatch calibrating | |||||||
Input Range T0 | 1s-99999s | Accuracy | ＜±（1×10-7×T0＋3ms） | ||||
For pointer swatch calibrating | |||||||
Input Range T0 | Continuous: 0.1s-99999s | ||||||
Accuracy | ＜±（Mains frequency accuracy×T0＋0.6ms） | ||||||
For millisecond swatch and dial swatch calibrating | |||||||
Input Range T0 | 1×102μs ~1×109μs | Accuracy | ＜±（1×10-7×T0＋3μs） | ||||
Crystal Oscillator | |||||||
Nominal Frequency | 5MHz | Daily Aging Rate | ≤5×10-9/day | ||||
Second Stability | ≤1×10-10/s | Accuracy | ≤1×10-7 | ||||
Warm Up Time | 12 hours | ||||||
