SG-3, SG-3A Complex Vacuum Gauge

復合真空計

簡介

        SG-3 型和 SG-3A 型複合真空計是由低真空熱偶計和高真空電離計兩部份複合而成的一種直讀式真空度測量儀器，無論在實驗室還是在生產條件下，都可以作為氣體系統真空度測量之用。

        SG-3A型是SG-3型的改進型產品。它較之SG-3型具有零點漂移小、溫升低、性能穩定等優點。

        儀器採用標準儀表機箱安裝，通用性強，便於上架或台式使用。

　

　

主要技術性能規範

　

(1)    輸入電壓                                                220V 50~60Hz 交流電

　

(2)    測量範圍                                                1x10^-3~1x10^-7托

        熱偶計部分                                             1x10^-1~1x10^-3托

        電離計部分                                             1x10^-3~1x10^-7托

　

(3)    使用規管

        熱偶計部分                                             DL-3 型熱偶規

        電離計部分                                             DL-2 型電離規

        發射電流                                                 5 mA

        加速極電壓 (對燈絲)                             +200V DC

        收集極電壓 (對燈絲)                             -25V DC

        規管靈敏度                                             20托^-1

　

(4)    消耗功率                                                 約33瓦，除氣狀態為55瓦

(5)    重量                                                         SG-3型: 8kg         SG-3A 型: 10kg

　

(6)    外形尺寸                                                 SG-3型: 350x250x165mm

                                                                        SG-3A型: 140x440x280mm

Brief Introduction

        Model SG-3 and Model SG-3A, consisting of a thermocouple gauge of low vacuum and an ion gauge of high vacuum, are a kind of direct reading vacuum measuring instruments. They can be widely used to measure the vacuum of the air system in laboratories or in factories.

        Model SG-3A is the improved type of Model SG-3. In comparison with Model SG-3, it has the advantages of little zero drift, low temperature-rising, reliable function and so on.

        These two models are installed in standard meter cabinets, universal in use and easy to be used on rack or bench.

Main Technical Specification

(1)    Input Power Supply:                                          220V 50~60Hz AC

　

(2)    Measurement Ranges:                                        1x10^-3~1x10^-7 Torr

        Thermocouple:                                                   1x10^-1~1x10^-3 Torr

        Ionization Gauge:                                               1x10^-3~1x10^-7 Torr

　

(3)    Gauge Used:

        Thermocouple:                                                   DL-3 Type

        Ionization Gauge:                                               DL-2 Type

        Emission Current:                                                 5 mA

        Accelerator voltage (refering to the filament):     +200V DC

        Collector voltage (refering to the filament):         -25V DC

        Sensitivity of the Gauge:                                       20 Torr^-1

　

(4)    Power Consumption                                         35W approx. 55W (in air-exhausting condition)

(5)    Weight:                                                             SG-3: 8kg;    SG-3A: 10kg

　

(6)    Overall Dimensions:                                          SG-3: 350x250x165mm

                                                                                   SG-3A: 140x440x280mm