Eberline ESP-1 - Page 38

HV = [numerical value]
RATE METER READING
The "НУ" value is the high voltage bias applied to the detector. Adjusting the actual high voltage is
performed with the internal control potentiometer (labeled "HV"). The external controls, RESET and
"+" or "-," are to be used only when calibrating the displayed HV readout to match the actual high
voltage (refer to section V). When properly calibrated, the HV parameter allows for high voltage
monitoring on the top line of the display and the rate meter reading on the bottom. This is
particularly useful when running detector plateaus. Pressing "+" will return the display to the "ALM
AT" parameter. Pressing "-" repeatedly will step the instrument through the parameters in reverse
order from that shown in the preceding paragraphs. Pressing the MODE switch anytime a parameter
and a rate meter reading are displayed will revert the instrument to the Rate Meter Mode.
Summarizing, the ESP-1 provides the following to the operator.
a. Іп the Rate Meter Mode:
W Bar graph graphically displaying count rate.
W Count rate in selected units per unit time.
B Audible alarm if the rate exceeds the value set.
b. In Scaler Mode:
Ш Time remaining in the counting period which was set.
WB Integrated value and selected units so far in the counting period.
Ш Ena of counting period, total time, and integrated value in selected units at the end of
the counting period.
Ш Audible alarm if set limit on total count is exceeded during the set count period.
c. Inthe Inquiry/Calibration Mode
gd Ability to set the rate meter alarm point.
Ш Enables the selection of units to be used in Rate Meter Mode.
Ш Аршу to set the CC and DT (calibrate) to the detector being used.
E"
Monitor the high voltage applied to the detector. Set the high voltage readout to match
the actual HV.
The current rate meter reading is displayed on the bottom line whenever the "ALM АТ,"
"UNITS =," "CC =," "DT," or "HV =" parameters are displayed on the top line.
ESP1.MAN/February
1992
3-9