功能特點(diǎn)：時(shí)代TH142便攜式里氏硬度計(jì)的改進(jìn)增加了如下功能；●   配有D型沖擊裝置，延長(zhǎng)了使用壽命，提高了調(diào)試精度。●   可測(cè)試六種硬度制（HV、HRC、HRB、HB、HV、HS）；●   一機(jī)可同時(shí)配多種異型沖擊裝置（D、DC、D+15、C、DL、G）型；●   自動(dòng)識(shí)別沖擊裝置類型（D、DC、D+15、C、DL、G）；●   可設(shè)置硬度值上下偏差自動(dòng)聲音報(bào)警；●   屏幕具有背光，可調(diào)節(jié)對(duì)比度；●   可存儲(chǔ)48～350組測(cè)試數(shù)據(jù)；●   打印機(jī)與主機(jī)可分離，更便于攜帶；●   增加了測(cè)試材料（不銹鋼）及擴(kuò)大了測(cè)試范圍；●   自動(dòng)檢測(cè)電池電壓，當(dāng)工作電壓低于額定值時(shí)，自動(dòng)報(bào)警；●   可顯示電池電量,USB口方便充電；●  配有熱敏打印機(jī)，方便隨時(shí)隨地打印測(cè)試結(jié)果；●   全中文菜單，方便操作；三、技術(shù)參數(shù)：硬度制                                                       HL、 HRC、HRB、HV、HB、HS強(qiáng)度范圍（只限黑色金屬材料）                                   ab:370～2000（10n/m）精度                                  相對(duì)誤差±0.8%、示值重復(fù)性*.8（HLD=800）可設(shè)置偏差                                                       平均、zui大、zui小、上下限計(jì)算機(jī)輸出接口                                                                                USB標(biāo)準(zhǔn)沖擊裝置                                                               高性能D型沖擊裝置其它沖擊裝置                                                         DC / D+15 / G / C / DL測(cè)量工件的zui大硬度顛值                       940HV（D/DC/DL/D+15/C沖擊裝置）                                                                                  650HB（G沖擊裝置）測(cè)試方向                                                                                        任意測(cè)量工件的曲率半徑                         Rmin=50mm（用異型支承環(huán)Rmin=10mm）測(cè)量工件的zui小重量                                         穩(wěn)定支撐2kg（0.1kg需耦合）測(cè)量工件的zui小厚度                                        3mm（G型沖擊裝置：10mm）  測(cè)量工件的zui小壓痕深度                                                 見沖擊裝置表一   電源                                                            充電電池NIMH12V,1200mAh  充電器                                                                                      9V75mA充電時(shí)間                                                                 2小時(shí)（有過(guò)充保護(hù)）使用溫度                                                                                   0～40℃外型尺寸                                                                         270×86×47mm重量                                                         675g（包括沖擊裝置和打印機(jī)）  里氏硬度計(jì) 測(cè)試范圍（表一）