(all models without »/H« or »/E« suffix) are also available as »Gray« versions. They
are not included in the table on the previous page for space reasons. Note that Gray versions use the same
calibration factor, which means they assume that 1 Gy = 100 R.
Probes are divided into two categories: the first category, henceforth called »Sv-probes«, comprises all
probes indicating dose rate units (Sv/h, R/h, Gy/h). The second category, henceforth called »pulse
probes«, comprises all probes indicating pulse rate (S
The 6150AD recognizes the following Sv-probes, which are also available as »/H« and »/E« versions just
Gamma Probe 6150AD-15 (/H, /E),
Gamma Probe 6150AD-18 (/H, /E),
Telescopic Probe 6150AD-t (/H, /E),
Scintillator Probe 6150AD-b (/H, /E) (only with 6150AD5/6 as a meter).
The 6150AD recognizes the following pulse probes:
Alpha-Beta-Gamma Probe 6150AD-17,
general pulse rate probe 6150AD-0 (for example 6150AD-k, Cerberus 763).
Pulse probes serve to detect contamination or activity, not to measure dose rate. Therefore they are not
affected by the measuring quantities J
, and H*(10); they do not require »/H« or »/E« versions..
The table below summarizes compatibility between 6150AD meters and probes.
Compatibility with Probes
Sv-probes for H*(10) /H models
Sv-probes for H*(10) /E models
All combinations of meter and probe marked »yes« work normally. Errors 1 and 2 display an error
message instead of indicating measuring data:
The flashing symbols »ext« and »ext xy« point out that the error is related to the external probe. Error 1
tells you that the 6150AD noticed the probe, but that it does not know the probe type (»xy« in »ext xy«
left blank). All 6150AD models will indicate this error with unknown probes. Usually unknown probes
are such probe types that were developed later that the meter like, for example, the Scintillator Probe
6150AD-b that is unknown to all 6150AD1-4 models. But also hardware errors may lead to this message:
if the 6150AD cannot read the probe type because of some electronic fault in the probe, the probe will
appear unknown to the meter.
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