Thermo Miran Sapphire XL Manual 2005 - IE Monitoring Instruments

3-7
Chapter 3 Instrument Preparation
Figure 3-7. Rear of Charger/Power Supply (Model 5100A Shown)
Battery Indicator Calibration
The purpose of the battery indicator calibration is to recalibrate the battery's internal
computer chip. Since the battery's full run time is constantly diminishing by small
amounts, the baseline must be constantly adjusted. This calibration procedure
compensates for this change and recalibrates the system to ensure that the battery
indicator presents as accurate a run-time as possible. A calibration should be performed:
• If there is a prompt to calibrate. This occurs after the analyzer has undergone
64 charge cycles without discharging and fully charging the battery.
• If the analyzer has gone unused for a period of 30 or more days.
Note: Not performing this calibration does not invalidate any of the concentration data.
Warning: Intrinsically safe models require special actions with respect to the following
section. Refer to Appendix B for descriptions of these actions.
The calibration procedure is:
1. Remove the battery from the analyzer and connect it to the Charger/Power
Supply using the battery pack interface cable. See Figure 4-3 for location of
battery compartment. Open compartment using special key (Part Number
X0173QH). Remove battery by partially turning each screw until the battery is
loose.