GDS-50秒表檢定儀是一*新用的時間檢定儀，供各級計量部門，工廠，院校及科研單位檢定各種秒表、毫秒儀，機械秒表等，性能符合檢定規程的要求。
技術指標：
1、 檢定電子秒表和機械秒表：
在1－99999秒內可任意置數
準確度±（2＊10－7＊輸出時段）秒±0.003秒
2、 檢定電子毫秒儀（正負兩組輸出）
在1－99999秒內可任意置數，*小輸出100微秒
準確度±（2＊10－7＊輸出時段）秒±0.003秒
3、 檢定電秒表（適合新規程JJG237-95）
在1－99999秒內可 任意置數
指針式準確度：電同步＜±0.6毫秒
數字式準確度：±（2＊10－7＊輸出時段）秒±0.006秒
Introduction
The calibrator is a precision instrument calibrating mechanical stopwatch, electronic stopwatch, and 405/407/408/415/417 type pointer electric stopwatch. The SF2001 stopwatch calibrator is compliant with the stopwatch calibration procedure JJG 237-2010 issued by the National Metrological Bureau. It could be used at metrological department at all levels, factory, institutions and all research institutes to calibrate electric stopwatch (405,407,408,415/417), mechanical stopwatch and digital quartz electronic stopwatch. The instrument is fully digitally controlled, high reliability,high accuracy, complete functions, convenient operation, and strong anti-interfere
ability.
GDS-50 stopwatch calibrator and its accessories:
1)GDS-50 stopwatch calibrator 1 piece
2) Three-core power cord 1 piece
3) Dual banana plug test lead 2 pieces
4) BNC-banana test lead 1 piece
5) Soft copy of User’s Guide 1 piece
Main Parameter
1.1 Crystal Oscillator
Nominal frequency: 10MHz
Daily aging rate: ≤5×10 -9 /day
Second stability: ≤5×10 -10 /s
Accuracy: ≤1×10 -7
Warming-up time: over 2 hours
1.2 Calibrate mechanical stopwatch and electronic stopwatch (T0 is inputted calibration period of time)
Input range: T 0 :1s-99999s
Accuracy: better than ±(1×10 -7 ×T 0 +3ms)
1.3 Calibrate electric stopwatch
Pointer:
Input range:
Continuous: T 0 :0.1s-99999s
Trigger state: T 0 :1s-99999s
Pause state: T 0 :0.1s-99999s
Accuracy: better than ±(commercial power frequency acc |
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