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GammaTwin
Graetz GammaTwin User Manual
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Oper
aon
Manual
for t
he
GRAE
T
Z Dose Ra
te Me
te
r
Gamma
T
win
Rel
eas
e: Oc
to
ber 20
17
, So
war
e Vers
ion 1
.4/1
.5
Par
t N
umb
er 56
41 987
7
23.51
10.02
2
Table of Contents
Table of Contents
3
Preface
5
Introduction
6
Possibilities of Use
6
Control and Display Ele Men Ts
8
Putting into Operation
9
Before Use
9
Switching ON/OFF
9
Indication
10
Twin"-Indication
11
Dose Indication
12
Dose Rate Indication
13
Single-Pulse Indication and Functional Control Signal
14
Display Illumination
14
Acknowledgement of Acoustic Alarms
15
Alarm Messages
16
Dose and Dose Rate Alarm
16
Battery Alarm
17
The Menu
17
Activate the Menu
17
Menu Operation
17
Dose and Dose Rate Alarm Thresholds
18
Acoustics
18
Dose
19
Setting Basic Display
19
Possible Defects
20
Error Messages
20
Batteries Discharged
20
Other Error Messages
21
Switching on
21
Disposal of Disused Devices
24
Technical Data
25
Repair and Maintenance
31
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Graetz GammaTwin Specifications
General
Power Supply
2 x AA batteries
Radiation Detected
Gamma
Energy Range
3 MeV
Measurement Range
0.01 µSv/h
Accuracy
±15%
Display
LCD
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