Crystal 2100 Series - Manual (Page 3)

PRESSURE is Our BUSINESS TM
PN: 2102
8/01
Page 3 of 8
The power switch must be off when installing the battery, to avoid
momentarily connecting the battery in reverse polarity. REVERSE
BATTERY POLARITY WILL DESTROY THE GAUGE IMMEDIATELY.
CAUTION
!
Milliamp Meter
To measure milliamperes, connect any standard test leads (with 4mm banana plugs) to the jacks
on the right side of the meter. The meter meets accuracy specifications with the leads
connected in either polarity. The top jack (red, adjacent to the strap) is the positive input
terminal.
The milliamp meter is internally fused with a replaceable glass, 2 amp, 8 AG fuse. Should the
fuse require replacement, follow the instructions of step 6 in the calibration procedure for panel
removal, then pry out and replace the glass fuse.
Battery Replacement
Replace the battery once a Low Battery indicator becomes visible. The battery warning
indicates the battery is exhausted, and the instrument may no longer be accurate. The 2100
operates on one 9V battery, either carbon-zinc (included) or alkaline. To install the battery, open
the cover of the instrument. Turn the power switch off. Open the battery compartment by lifting
up the tab on the right side of the gauge. Plug the battery into the polarized snap connector.