With error 2 the 6150AD tells you that it correctly identified the probe (»xy« in »ext xy« set accordingly),
but that it refuses to indicate measuring data because the probe may not be designed for H*(10). Only
6150AD »/E« models will issue this error message to ensure that they will operate with »/E« probes only.
Operation and function do not depend on the measuring quantity. Therefore, from now on we shall
mention the »/H« and »/E« suffixes only if they are significant, for example when discussing energy
dependence and directional dependence. Unless stated otherwise, all specifications for a model 6150ADx
also apply to the corresponding H*(10) models 6150ADx/H and 6150ADx/E.
Likewise, we shall not further discuss the J
S
(Roentgen) versions, because this unit is »out of fashion«.
All »R« versions have exactly the same ranges as their H
X
(Sv) counterparts; they just convert all
indications according to the factor 100 R/Sv.
3. Construction
3.1 Housing
The housing is made of waterproof aluminium die casting and has a dark grey scratch-resistant coating.
The reverse side carries a short form instruction label and the battery compartment cover, which is fitted
with two twist locks. The battery compartment is separated from the electronics compartment by a
watertight dividing wall to prevent moisture or other impurities from entering the interior of the
instrument when the battery is replaced.
Two eyelets at the bottom corners of the instrument allow fastening the carrying strap.
The housing design meets degree of protection IP 67 according to DIN 40050 (protection against
penetration of dust and protection on immersion in water); the instrument is thus easy to decontaminate.
3.2 Location of Detector
The counting tube is located in the centre of the front directly behind the housing wall. A marking spot on
the front side indicates this location; it also serves to place a check source. The preferential direction (the
direction of radiation incidence with best measuring accuracy) is perpendicular on that marking spot. The
triangular arrow symbol on the top side above the LCD also indicates this preferential direction.
3.3 Display
The display is a static (non-multiplexed) custom designed liquid crystal display (LCD) with an
electroluminiscence lamp as a backlight.
µSv/h
perpendicular onto marking spot
on front side
centre of counting tube:
12 mm behind the front wall
preferential direction:
Page 6
Operating Manual 6150AD
03/2004
Daimlerstrasse 27
Telefon +49(0)6203-9503-00 http://www.automess.de
USt.-ID-Nr. / VAT ID No.
D-68526 Ladenburg Telefax +49(0)6203-9503-29 eMail: [email protected] DE 144 458 420