[ RadSafe ] Re: GR-130 defective - Help ?

Peter Swann peter.swann at energysolutions.uk.com
Mon Sep 1 09:20:18 CDT 2008

When one of our units did this it turned out to be a faulty 'SPU' amplifier board, and the only repair was return to the manufacturer for replacement circuit board and recalibration.

Peter Swann CRadP MSRP

Senior Technical Consultant

Tel:  +44 (0) 1235 822571
Mob:+44 (0) 7711 927505
Fax: +44 (0) 1235 822580

peter.swann at energysolutions.uk.com


Safeguard International is a member of the EnergySolutions group of companies.
Registered Office: B168, Maxwell Avenue, Harwell Campus, Didcot, Oxfordshire, OX11 0QT, UK.
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-----Original Message-----
From: radsafe-bounces at radlab.nl [mailto:radsafe-bounces at radlab.nl] On Behalf Of Hahn, Michael
Sent: 01 September 2008 14:56
To: radsafe at radlab.nl
Subject: [ RadSafe ] Re: GR-130 defective - Help ?

Thank you all for hints and advices.
Sadly it´s none of the supposed reasons so far.
Every time some secondes after beginning of stabilization I get:
"Error #4 GAIN Error System unsusable Consult Manual"
The Cs-137 cal source is still o.k. after 8 years
And so is the backup battery: Date/Clock is o.k.
But thanks Colin for the good idea of possibly aged high meg restors in the HT-Supply.
Maybe that´s it.
All I still need is a circuit diagram....


Landesamt für Verbraucherschutz, Landwirtschaft und Flurneuordnung
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Müllroser Chaussee 50
15236 Frankfurt (Oder)
Tel. 0335 560 3127
Fax 0335 560 3139
e.mail: Michael.Hahn at lvlf.brandenburg.de

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