RKI Instruments SM-2003U - Manual (Page 25)

Calibrating Instruments • 25
CAUTION: When using the GX-2001 with the SM-2001U or the
GX-2003 with the SM-2003U, do not turn off the
instrument using the instrument power switch. Use
the BUMP and VOL. control buttons on the
calibration station to turn off the instrument.
14. Remove the instrument from the calibration station.
Calibrating Instruments
The SM-2001U and SM-2003U calibration stations are capable of
performing a calibration on an instrument that is connected to it. When a
calibration is performed, the calibration station performs an air adjust
operation on an instrument and then applies calibration gas to the
instrument. The calibration station analyzes the calibration results and
determines if the instrument passed the calibration.
To perform a calibration on an instrument:
1. Verify that the appropriate calibration gas cylinder is connected to
the CAL. GAS fitting on the back of the calibration station.
2. If the calibration station is off, turn it on using the power switch on
the back of the station. The CHARGE status LED will begin to blink
green.
3. Put the instrument to be calibrated into the calibration station. A
GX-2001 is placed into an SM-2001U and a GX-2003 is placed into
an SM-2003U.
• For a GX-2001, attach the flow adapter cup to the sensor side of
the instrument before inserting it into the SM-2001U.
• For the GX-2003, place the instrument into the SM-2003U,
connect the plastic fitting on the end of the coiled black tube to
the inlet fitting, and then connect the plastic fitting on the end of
the straight green tube to the exhaust fitting.
If you take more than a few seconds before continuing, the
CHARGE LED may begin blinking yellow indicating that the
calibration station is charging the battery pack in the instrument if
the instrument has a battery pack whose charge is low enough.