LUDLUM 9DP-1 User Manual

MODEL 9DP-1 Operator’s Manual
Ludlum Measurements, Inc. 12 December 2015
4.4.1 Measurement Reading
The default measurement reading is presented as an analog arc with a large
numeric display beneath. The arc will indicate increasing levels by filling in the arc
with a green-colored fill. If an alert or an alarm is pre-programmed and activated,
it will change the fill color to yellow and red respectively from the point where
the alarm point begins. The color-coded arc fill is a user-friendly means of
indicating whether the level displayed is normal (green), becoming a concern
(yellow), or exceeding the desired level (red).
The scale is auto-ranging, meaning that as the level increases, the values noted at
the start and ending points of the arc will change. Five scales exist on the Model
9DP-1 as noted in the following table.
Scale Ranges
SI Units – Sv/h
US Units – R/hr
SI Units – Gy/h
0-50 µSv/h
0-5 mR/hr
0-50 µGy/h
0-500 µSv/h
0-50 mR/hr
0-500 µGy/h
0-5 mSv/h
0-500 mR/hr
0-5 mGy/h
0-50 mSv/h
0-5 R/hr
0-50 mGy/h
0-500 mSv/h
0-50 R/hr
0-500 mGy/h
Measurement
Reading
Function Display
Icons
Messages

LUDLUM 9DP-1 Specifications

General

Brand	LUDLUM
Model	9DP-1
Category	Measuring Instruments
Language	English