Greisinger Oxy 3690 Oxygen Meter 602951 Data Sheet
Product codes
602951
T02.0.4X.6C-09
page 3 of 6
Assignment of elbow-type plug:
2-wire connection (4-20mA)
3-wire connection (voltage)
4-wire connection (voltage)
1 = supply voltage +Vs
1
= signal +
1
= signal +
2 = GND / signal
3
= supply voltage +Vs
2
= signal -
(4) = supply voltage -Vs
3
= supply voltage +Vs
signal -
(4) = supply voltage -Vs
General installation instructions:
To mount the connection cable (2-, 3-, or 4-wire depending on type of device) the elbow-type plug screw has to be loosened
and the coupling insert has to be removed by means of a screw driver at the position indicated (arrow).
Pull out connection cable through PG glanding and connect to the loose coupling insert as described in the wiring diagram.
Replace loose coupling insert onto the pins at the transducer housing and turn cover cap with PG glanding in the direction
desired till it snaps on (4 different starting positions at 90° intervals). Re-tighten the screw at the angle plug.
and the coupling insert has to be removed by means of a screw driver at the position indicated (arrow).
Pull out connection cable through PG glanding and connect to the loose coupling insert as described in the wiring diagram.
Replace loose coupling insert onto the pins at the transducer housing and turn cover cap with PG glanding in the direction
desired till it snaps on (4 different starting positions at 90° intervals). Re-tighten the screw at the angle plug.
Display functions:
During normal operation the oxygen content of the air is displayed in the unit [%]. By pressing the Key 2 (down) the
temperature at the sensor can be shown, pressing key 3 (up) shows the electrode rating in [%]. The electrode rating is
calculated and stored during the calibration (see below). The displays of the rating and the temperature of the sensor are
marked by small arrows at the upper end of the display. After 5 seconds the transducer display switches automatically
back to the oxygen value.
temperature at the sensor can be shown, pressing key 3 (up) shows the electrode rating in [%]. The electrode rating is
calculated and stored during the calibration (see below). The displays of the rating and the temperature of the sensor are
marked by small arrows at the upper end of the display. After 5 seconds the transducer display switches automatically
back to the oxygen value.
display dissolved oxygen
display sensor temperature
display electrode rating
Calibration of the sensor:
Expose sensor to the ambient air, wait until the temperature has adopted to the ambient conditions.
Press key "SET" for 2 sec., The display shows "CAL".
After approx. 10 sec‟s the transducer is calibrated or a referring error message will be shown:
Press key "SET" for 2 sec., The display shows "CAL".
After approx. 10 sec‟s the transducer is calibrated or a referring error message will be shown:
Display Meaning
Possible fault causes
Remedy
CFE.1
temperature out of allowed
range
range
temperature has to be within 5 to
40°C
40°C
calibrate again at correct tempera-
ture
ture
sensor error
temperature sensing defective
check cable & connection,
replace sensor if necessary
replace sensor if necessary
CFE.3
wrong signal: to low
sensor element used up
replace sensor element
CFE.4
wrong signal: to high
calibration surrounding not valid
check Calibration surrounding
CFE.6
instable signal
calibration surrounding not valid
check Calibration surrounding
During calibration the rating of the electrode is evaluated: 100% means perfect state, 40 % means e.g. sensor element
has a weak output signal and needs to be replaced soon (p.r.t. sensor manual). The electrode rating can be displayed
with key 3 (down).
has a weak output signal and needs to be replaced soon (p.r.t. sensor manual). The electrode rating can be displayed
with key 3 (down).