Viken Detection Pb200i, User Manual

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Using the Internal Read Through Adaper (IRTA)
For instruments equipped with the optional internal read through adapter (iRTA), this next section will
guide you on it’s proper use. Instruments equipped with an internal read through adapter will have a front
sticker as shown in Fig. 28, and a black snout; instruments without the iRTA will have a silver snout (Fig.
1).
The iRTA has “on” and “off” positions that are set by using a magnetic stylus to slide it between positions
as seen in Fig. 29 and 30. In Fig. 29, the empty circle on the sticker denotes the “off” position. Fig. 30, the
filled circle with the letters “RT” denotes the “on” position.
Caution: The magnet on the stylus should always be sitting on the top of either circle in the “on”
or “off” position to ensure that the iRTA is fully engaged or disengaged.
Take a measurement in Action Level mode with the iRTA in the “off” (disengaged) position as seen in
Fig. 29. If there is lead in the sample which concentration falls /- 20% of the action level, the unit
will take a 5 second measurement. (Fig. 31) If the reading is outside of +/- 20% of the action level, the
Pb200i will complete the measurement in 1-2 seconds.
Take a measurement in test mode with the IRTA in the “on” position as seen in Fig. 30. If there is surface
lead in the sample /- 20% of the action level, the unit will take a 10 second measurement. You will
see an indicator on the display that the iRTA is present (engaged) as shown in Fig. 32. If the reading is
outside of +/- 20% of the action level, the Pb200i will complete the measurement in 1-2 seconds.
Figure 28 Figure 29
Figure 30
Figure 32
Figure 31