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H74.0.05.6C-06 

Operating Manual GMH 3651 

page 18 of 18 

16 Specification 

Measuring ranges 

Oxygen concentration 

0.00 ... 70.00 mg/l or ppm 

electrochemical sensor GWO 3600 

Oxygen saturation 

0.0 ... 600.0 % O

2

 

Oxygen partial pressure  0 ... 1200 hPa O

(0.0 .. 427.

5 mmHg)“ 

Sensor temperature 

-5.0 ... + 50.0 °C 

NTC 10k (integrated in GWO 3600) 

Absolute pressure 

300 ... 5000 hPa abs.**) 
0 … 40.0 m water column*)

 

integrated pressure sensor with pressure 
port

 

Accuracy 

at 25°C, 1000 hPa abs 

Oxygen 

±1.5 % of measured value ±0,2 mg/l (0-25 mg/l) 
or ±2.5 % of measured value±0,3 mg/l (25-70 mg/l) 

Sensor temperature 

± 0.1 °C 

Accuracy 

Absolute pressure 

3 hPa or 0.1% of measured value (the higher one to be applied) 

Working conditions 

 

20 ... 50 °C; 0 ... 95 % r.H. (not condensing) 

Nom. temperature 

 

25°C 

Storage temp. 

 

-20 ... 70 °C 

Connections 

O

2

 & temperature 

6 pole Mini-DIN Socket 

Absolute pressure 

Universal pressure port for tubes with 4 or 6mm inner-Ø 

Interface / 
Analogue output 

serial, (3.5mm audio plug),via isolated adapter GRS3100, GRS3105 or 
USB3100 (accessories) for PC-USB or RS232- connection, alternatively 
selectable: Analogue output 0-1V 

 

external supply 

d.c. connector (diameter of internal pin 1.9 mm) for external 10.5-12V 
direct voltage supply.  (suitable power supply: GNG10/3000) 

Oxygen sensor 
GWO 3600 

Working conditions

 

0 ... 40 °C 

Operating pressure 

max. 3 bar 

Display 

 

4 digit 7-segment 2 lines, additional segments 

Calibration 

automatic 

1 -, 2- or 3-point calibration,  
0%, 100% or ambient air (20.95%) or air saturated water 

GLP 

calibration storage 
adjustable calibration intervals (1 to 365 days, CAL warning after 
expiration) 

Data logger 

Real-time clock 
Cyclic: 8000 data sets, cycle time 1s to 60 minutes 
Single: 1000 data sets, with measuring point input 

Alarm 

Buzzer / visual / interface  
2 channels: selectable oxygen unit and temperature 

Additional functions 

Min / max / hold / auto hold 

Housing 

 

Break-proof ABS housing 

 

Protection class 

Front side IP65 

 

Dimensions L*B*H [mm] 
Weight 

Without pressure port: 142 x 71 x 26 mm (L x B x H) 

 

approx. 170 g (incl. battery) 

Power supply 
   Current consumption 

9V-Battery, Type IEC 6F22 (in scope of supply) or external supply 
Ca. 0.6 mA (if Out = Off ca. 0.4mA) 

Change battery indicator 

Automatic at weak battery 

 

and ’ bAt ’ 

Auto-Off-Function 

Device will be automatically switched off if no key is pressed/no 
interface communication takes place for the time of the power-off delay. 
The power-off delay can be set to values between 1and 120 min.; it can 
be completely deactivated. 

EMI 

The device 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% 

*) with accessories, please refer to chapter 7.2.2 
**) please note: maximum pressure of GWO 3600 sensor is 3000hPa rel respectively 4000 hPa abs. 

17 Reshipment and Disposal  

 

Dispense exhausted batteries at destined gathering places.  
This 

device must not be disposed as “residual waste”. To dispose this device, please send it 

directly to us (adequately stamped). We will dispose it appropriately and environmentally friendly. 

DANGER

 

All devices returned to the manufacturer have to be free of any residual of measuring media and 
other hazardous substances. Measuring residuals at housing or sensor may be a risk for persons 
or environment 

 

Use an adequate transport package for reshipment, especially for fully functional devices. Please 
make sure that the device is protected in the package by enough packing materials. 

Содержание GMH 3651

Страница 1: ...Str 26 D 93128 Regenstauf 49 0 9402 9383 0 49 0 9402 9383 33 info greisinger de As of Version 1 0 Operating Manual GMH 3651 Oxygen meter for dissolved oxygen with integrated temperature and pressure...

Страница 2: ...IBRATION AL 1 PT 11 8 2 2 3 POINT CALIBRATION AL 2 PT AL 3 PT 12 8 3 EVALUATION OF SENSOR STATE ELE 12 9 OPERATION OF THE LOGGER 13 9 1 FUNC STOR STORING SINGLE MEASUREMENT SETS 13 9 2 FUNC CYCL AUTOM...

Страница 3: ...s device has been designed and tested in accordance with the safety regulations for electronic devices However its trouble free operation and reliability cannot be guaranteed unless the standard safet...

Страница 4: ...s to be set again 2 Mains operation with power supply When using a power supply please note that operating voltage has to be 10 5 to 12 V DC Do not apply overvoltage Cheap 12V power supplies often hav...

Страница 5: ...4 ok arrow Signals if oxygen and temperature values are stable 5 CAL arrow Signals if automatic calibration is in progress 6 SAL arrow Signals that the salinity correction is aktivated 7 Logg arrow Sh...

Страница 6: ...lip at position 90 Pop up clip at position 180 Function The device with a closed pop up clip can be plainly laid onto a table or attached to a belt etc The device with pop up clip at position 90 can b...

Страница 7: ...h in meter only with depth accessory TMV 3600 DEP Depth measuring activated Second display always shows depth in meter only with depth accessory TMV 3600 U N T T C All temperatures in degree Celsius e...

Страница 8: ...rement 0 0 SET AL Set Alarm AL 1 ON NO SO Monitoring Oxygen Alarm on with buzzer Alarm on without buzzer OFF No alarm monitoring for oxygen AL N ONC Monitoring Oxygen Concentration in P 02 Monitoring...

Страница 9: ...to ageing Therefore we recommend to maintain the electrode at monthly intervals p r t Electrode maintenance Please note Make it a rule to always store the electrode in a humid environment in the stora...

Страница 10: ...xygen concentration requires entering the salinity of the medium p r t Configuration The correction of salinity is based on media on a water basis whose chemical content is similar to sea water The co...

Страница 11: ...ctrode is exposed to air with a relative atmospheric humidity of 100 Proceed as follows Put some distilled water in a bottle Close bottle and generate a water steam saturation 100 rel atmospheric humi...

Страница 12: ...blinks no valid reference is recognised by the instrument As soon the values for oxygen and temperature are stable the calibration of the second point will be finished At 2 point calibration the calib...

Страница 13: ...f data sets 1000 A data set contains oxygen concentration in mg l or ppm oxygen saturation in percent or partial pressure in hPa or mmHg temperature value at the time of recording in C or F absolute p...

Страница 14: ...The recording automatically will be stopped Stopping the recording manually By pressing Store key 6 the recording can be stopped manually Then the following choice appears The selection can be made by...

Страница 15: ...nels oxygen concentration in mg l or ppm oxygen saturation in percent or partial pressure in hPa or mmHg temperature value at the time of recording in C or F absolute pressure in hPa abs or mmHg abs o...

Страница 16: ...rtly switch between ELE total electrode state evaluation in SL 1 Slope at 0 Air saturated water 1 SL 2 Slope at air saturated water 100 1 Date time display of data set or Change between the different...

Страница 17: ...or Sensor cable or instrument defect return to manufacturer for repair ERR 7 system error return to manufacturer for repair If BAT is flashing the battery will be exhausted soon Further measurements a...

Страница 18: ...000 data sets with measuring point input Alarm Buzzer visual interface 2 channels selectable oxygen unit and temperature Additional functions Min max hold auto hold Housing Break proof ABS housing Pro...

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