Electra DELTA 25 Manual de usuario descargar pdf (Pagina 5)

Electra/Selectra

3

Portable Meters

Electra

An advanced microprocessor-based

ratemeter with computer-aided respons-

es to radiation, the sturdy, well-balanced

Electra is capable of improving the per-

formance of all compatible doserate or

contamination probes. Controls: audio,

backlight, select radiation channel,

upper energy threshold, integrate, back-

ground subtract, and alarm thresholds.

Also ‘enable/disable’ — to match the

instrument to the complexity of the task

or the proficiency of the user. Settings for

external probe: HV, Dead time correction,

overload current, units and efficiency fac-

tors. Connectors: probe, mains/charger,

headset.

The Electra is a digital, microprocessor

based, rate meter which is compatible

with most GM and scintillation survey

probes, and can be calibrated with an

external probe for direct readout of dose

rate or count rate, in a range of units.

Readings are displayed both numerically

and on a bargraph, which autoranges

across seven decades. Intelligent soft-

ware discriminates between true rate

changes and insignificant fluctuations.

Digitally controlled HV and preset param-

eters provide outstanding consistency

between instruments: the setup does not

drift and instruments with identical

setups are directly interchangeable.

Selectra

The Selectra includes all the Electra’s fea-

tures plus the extra feature of automatic

setup. The setup is stored in a memory

chip that is fitted to the probe and read

by the Selectra at switch-on. The Selectra

also has a ‘Supervisory’ mode to repro-

gram the probe’s memory chip.

The connecting cable forms part of the

upgraded probe.

•

Electra/Selectra

0.1 cps to 100 kcps

1 cpm to 1000 kcpm

•

HV: 400–1400 V for

resistive

loads >66 MΩ in value

Intelligent Probes

Intelligent Probes offer the same capabili-

ty of smart probes but are not compatible

with the E-600.

Smart probes may be ordered by adding

the prefix “I” to many of Thermo’s probe

model numbers, i.e. DP2/4B becomes the

IDP2/4B when it is intelligent for use

with the Selectra

The Selectra models feature automatic

probe setup when used with our “I” style

probes.

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