GDS-50秒表检定仪是一用的时间检定仪，供各级计量部门，工厂，院校及科研单位检定各种秒表、毫秒仪，机械秒表等，性能符合检定规程的要求。

技术指标：

1、 检定电子秒表和机械秒表：

在1－99999秒内可任意置数

准确度±（2＊10－7＊输出时段）秒±0.003秒

2、 检定电子毫秒仪（正负两组输出）

在1－99999秒内可任意置数，小输出100微秒

准确度±（2＊10－7＊输出时段）秒±0.003秒

3、 检定电秒表（适合新规程JJG237-95）

在1－99999秒内可 任意置数

指针式准确度：电同步＜±0.6毫秒

数字式准确度：±（2＊10－7＊输出时段）秒±0.006秒

Introduction

The calibrator is a precision instrument calibrating mechanical stopwatch, electronicstopwatch, and 405/407/408/415/417 type pointer electric stopwatch. The SF2001stopwatch calibrator is compliant with the stopwatch calibration procedure JJG 237-2010 issued by the National Metrological Bureau. It could be used at metrologicaldepartment at all levels, factory, institutions and all research institutes to calibrateelectric stopwatch (405,407,408,415/417), mechanical stopwatch and digital quartzelectronic 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 inputtedcalibration 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 accuracy×T 0 +0.6ms)

1.4 Calibrate millisecond counter and digital electric stopwatch

Input range: T 0 :1×10 2 µs-1×10 9 µs

Accuracy: better than ±(1×10 -7 ×T 0 +3µs)

The SF2001 calibrator is fully compliant with the mechanical stopwatch and digital quartzstopwatch calibration procedure, electric stopwatch calibration procedure, and electronicmillisecond counter calibration procedure, issued by the National Metrological Bureau.

2.1 Working conditions

Voltage: 220(1±10%)V;

Frequency: 50(1±5%)Hz;

Power consumption: <60VA;

Temperature : 0~40℃;

Humidity: <80%

2.2 Mechanical characteristics

Dimension: 329mm×283mm×155mm Weight: 3.7kg

2.3 Operation characteristics: Input with keys, menu display

2.4 Display mode: LCD display,English menu

2.5 Technique: With SMT technique and large-scale IC, the calibrator is of highreliability, small volume and long service life.