Impact Soil Tester  

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Left Photo Above: Analog c.1976                                              

Right Photo Above: Digital c.1983

Left Photo Above: Digital Handle Model (DHM) 1993-1996                  

Right Photo Above: 1997 to 2006 : Left: GTM (Australian), Middle: Series 95 (US), Right : 882 (UK - 882 Still Available).

2007 to 2018 : Left Above: GTM-SS-E (Aust. - from 2009), Middle Above:  Series 95A (US), Right Above: Series 883 (UK)

Analog features: 2 Nine-Volt Alkaline PP3  Batteries, on/off switch, press and release run/test button on hand-held meter, switchable 0-50 or 0-100 Clegg scale (0-1000 gravities, with the last number truncated).

Digital Features: 2 Nine-Volt Alkaline PP3 Batteries, single on/reset button held depressed during test on hand-held meter, 0-100 Clegg scale.

DHM Features: 1 miniature 12-volt Alkaline Battery (eg Energizer A23), single on/reset button, press and release, 0-100 Clegg scale.

GTM Features: 1 Nine-volt Alkaline PP3 Battery, single on/reset button, press and release, meter attached to guide tube, 0-100 Clegg scale.

GTM-SS-E Features: 2 'AA' Alkaline Batteries, single on/reset button, press and release, meter attached to guide tube, stainless steel T-handle, stainless steel hammer weight with hardened steel impact end for 4.5 kg version (red anodised aluminium weight for 2.25kg version, black plastic weight for 0.5kg version), clear anodised aluminium guide tube, 3-100 Clegg scale.

Series 95 Features: 1 Nine-Volt Alkaline PP3 Battery, single on/reset button, press and release, meter clips to guide tube, red powder coated aluminum guide tube, 0-100 Clegg scale.

Series 95A Features: 2 AA Rechargable Battery Pack (replacement pack available from manufacturer only), single on/reset button, press and release, meter clips to guide tube, red powder coated aluminum guide tube, 0-100 Clegg scale. Meter is hand-held during operation but comes with a neck/shoulder strap for convenience during testing. Data acquisition and downloading to a computer with Windows XP or Vista via USB 2.0 (cable supplied), readable on Microsoft Excel.

Series 882 Features: 1 Nine-Volt Alkaline PP3 Battery, single on/reset button held depressed during test on hand-held meter, 10-70 Clegg scale for the standard hammer, 3-500 Gmax scale (i.e gravity scale) for the lighter hammers can be specificfied instead.  (As of October 2000, a scale of 3-100 CIV can be specified instead.)

Series 883 Features: 2 AA Alkaline Batteries, single on/reset button, press and release, meter fixed to guide tube during operation. 3-100 Clegg scale for the standard hammer, 3-500 Gmax scale (i.e gravity scale) for the lighter hammers can be specificfied instead. Stor/Blu variant allows for data acquisition and downloading to a computer with Windows XP or Vista via Bluetooth dongle (supplied), readable on Microsoft Excel.

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