2 initial calibration group – Fluke Biomedical 37-705 User Manual

Page 13

Advertising
background image

Operation

Menu Structure Overview

2

2-3

The label printer is connected using the supplied cable with the RJ11 (modular phone type connector to
the RS-232 jack on the side of the VeriDose V and the 9-pin male D-Sub to the 9-pin female connector
supplied with the label printer.

2.2 Initial Calibration Group

2.2.1 Diode connection and calibration

Since the VeriDose V system displays the results of a dose measurement, the system must be calibrated
to a diode set or multiple sets prior to use. In order to calibrate the system, select the appropriate diode(s)
for the target energy. The sensitivity of each diode is unique and the calibration process will associate a
calibration factor for each diode to a specific channel. Therefore, it is necessary to assure that the correct
diode is connected to the appropriate channel for all subsequent measurements. If five or fewer diodes
are used, they may be left permanently attached to the VeriDose V. However, if multiple diode sets are
routinely used, a reliable method of assuring proper connection must be established.

Prior to beginning the calibration process it is necessary to become familiar with the operation of the
menus and data entry. Refer to Section 2.1.2, Menu Operation.

2.2.2 Calibration Process

1. Connect the diode(s), starting at channel 1 to the input connectors on the rear panel of the

VeriDose V.

2. Apply power to the unit by placing the ON/OFF switch, located on the right side of the unit, in the

ON position.

2.2.3 Adding a Diode Group

1. Scroll to the CAL menu item using the MODE key located below the first column. The second

column allows the entry of a password. Since a new password has not been entered, the default
password AAAA allows immediate access to the calibration functions. Press the ENTER key
located to the right of the display.

2. The first step in the calibration process is to add a calibration group. A group represents a particular

set of diodes that will be stored in the calibration database. Select a name for the new group such
as "6X" or "6E". Select ADD in the OPTION column. Press the NAME soft-key to select the first
character of the name. Repressing the NAME soft-key will move the cursor to the next character
position. Enter the group name by pressing the UP or DOWN keypads to the right of the display to
scroll though the character set and press the column 3 soft-key to move the cursor to the next
character position. After the name has been entered press the ENTER key.

2.2.4 Entering the Database Information

1. Each channel that has a diode connected must be activated by scrolling to each individual channel

number in the second column and selecting YES in the third column. The fourth column displays
the database items and fifth column allows the user to enter the identifiers for each of these items.
The database items are printed on each report for record keeping purposes.

2. Select channel 1 and enter the Serial number of the diode connected to channel 1. Press the soft-

key below column 5 to scroll the cursor to the right and use the UP and DOWN keys to the right of
the display to enter the appropriate serial number. A blank space can be entered by scrolling down
from "A".

3. Press the OPTION soft-key (column 4) to select the Modality item. Press the soft-key below column

5 and use the UP and DOWN keys to the right of the display to enter the appropriate modality label.

Advertising