User manual
Z11.0.0X.6C-13    page 1 of 4 
Operating Manual 
 GGO ..., GOO ... 
Specification:  GGO 370, GOO 370  | GGO 380, GOO 380 
Sensor:  Partial oxygen pressure sensor   
Sensor types:    
GGO ... :   closed sensor 
GOO ... :   open sensor 
Application: 
diving 
Low Oxygen concentrations 
 Specific features: 
Stronger membrane
: enhanced life time 
and more robust against pressure changes. 
Coated electronics
: corrosion protection. 
less 
dependence on operating position
and better t
emperature compensation 
CO
2
 tolerant
For low O
2
 concentration 
Fast response 
Measuring range: 
 Partial oxygen pressure: 
 Oxygen concentration: 
 Temperature: 
0 ... 1100 hPa O
2
0,0 ... 100,0 % O
2
(
gaseous
)
0,0 ... 45,0 °C
0 ... 300 hPa O
2
0,0 ... 25,0 % O
2
(
gaseous
)
0,0 ... 50,0 °C
Electrolyte: 
acidic electrolyte 
basic electrolyte 
Response time: 
90% in <10 sec.,  
depending on temperature 
90% in <5 sec.,  
depending on temperature 
Cross sensitivities: 
none to He, H
2
 and CO 
Signal of <0.1 %  
15% CO
2
in N
2
,  
10% CO
in N
2
, 
3000ppm NO in N
2
,  
3000ppm C
3
H
8
 in N
2
,  
500ppm H
2
S
in N
2
,  
500ppm SO
2
 in N
2
,  
1000ppm Benzene in N
2
Nominal sensor life: 
approx. 2 years at standard condition 
approx. 2 years at standard condition 
Operating conditions: 
0 - 45 °C, 
0 - 95 %RH (non-condensing) 
0 - 50 °C, 
0 - 95 %RH (non-condensing) 
Ambient pressure:  0.5 to 2.0 bar abs. 
 Over-/under-pressure:  max. 0.25 bar (pressure difference sensor membrane to ambient – sensor screwed-in) 
Storage temperature:  -15 to +60 °C 
Warranty period:  12 months (assuming appropriate usage according to the manual) 
Connection:   approx. 1 m cable with Mini-DIN-plug. 
Dimensions of housing:   GGO..: approx. Ø 36 mm x 95 mm (150 mm incl. anti-buckling glanding),  
GOO..: approx. Ø 40 mm x 105 mm (160 mm incl. anti-buckling glanding) 
Housing with M16 x 1-screw thread (sensor can be connected to line tubes by 
means of an additional adapter) 
Weight:  approx. 135 g (GGO...) or approx. 145 g (GOO...) 
EMC:  The GGO.../GOO... corresponds to the essential protection ratings established in 
the Regulations of the Council for the Approximation of Legislation for the member 
countries regarding electromagnetic compatibility (2004/108/EG). 
additional fault: <1% 
WEEE-Reg.-Nr. DE93889386 
GREISINGER electronic GmbH 
D - 93128 Regenstauf, Hans-Sachs-Straße 26 
 +49 (0) 9402 / 9383-0  +49 (0) 9402 / 9383-33  info@greisinger.de 




