CG-5 Gravity Meter Operation Manual - Scintrex

Getting StartedOperating the CG-5 For the First TimeWhen starting up the Autograv for the first time, or after it has been turnedoff for 48 hours, you must observe the following waiting periods.1. Powering up the Autograv - Use the charger to power up the instrumentas well as the battery.2. Warm-up period - After you connect the battery charger to the Autograv,it requires a 4-hour warm-up time to reach its operating temperature.3. Stabilization period - After you connect the battery, you should allow afull 48 hours for instrument stabilization and warm up of the sensor. If thisis your first use of the instrument, this is a good time to become familiarwith the keypad and software. We suggest that you try initializing thesoftware by resetting the time and date, erasing the memory and setting upthe Autograv instrument parameters.4. Checking and adjusting the drift correction - This process involvesrunning the Autograv for approximately 24 hours in the auto-repeat mode.5. Setting up the instrument for field operations - After completing theprevious steps, you are ready to set up your Autograv for field use. Formore information, see Chapter 2, “Setting Up Your Instrument” andChapter 3, “Operating the CG-5 in the Field”.Powering up the AutogravThe CG-5 can be powered either by:• The 15V DC external power supply• One or both of the two internal Smart Batteries supplied with the CG-5If the batteries are in place when the external supply is connected, the supplywill power the unit and also charge the batteries if necessary. When thebatteries are fully charged the supply powers the unit so that the batteriesmaintain their full charge. The batteries are charged sequentially and takeapproximately 4 hours each to charge.The instrument is also supplied with a free standing battery charger whichallows the batteries to be charged off-line.1-12CG-5 Manual - part # 867700 Revision 5