Pin 3 and Pin 4
Resistance should be infinite
Pin 3 and Pin 9
Pin 3 and Pin 1
Pin 1 and Pin 4
A finite resistance can exist in these cases, but it must not be zero
Pin 1 and Pin 9
To check for continuity between each of the electrodes and the corresponding pin on the LEMO plug
it is necessary to empty the electrolyte reservoir then rinse it out and thoroughly dry it. In particular, it
is essential that the gap between the cathode (anode for hydrogen sensors) and the guard ring
electrode be absolutely dry.
By touching each of the electrode surfaces very carefully in turn with one ohmmeter lead and the
corresponding pin with the other, as follows:
• central electrode and pin 4
• outer electrode and pin 9
• guard electrode and pin 1
You should find a value of zero in each case. A discrepancy in any of the above checks suggests a
connection fault within the sensor and should be reported to your Hach Lange representative.
C A U T I O N
Be careful not to scratch the electrode surfaces.
Resistance tables
The following tables show the resistance between the sensor LEMO plug pins. All values are in kilo
ohms.
All sensors:
Sensor Model
Pins
0°C
10°C
20°C
25°C
30°C
40°C
31110 31120 31123 31130
31131 31140 31141 31230
31231 31240 31330 A1100 C1100
3-6
351.0
207.9
126.7
100.0
79.4
51.0
31331
2-5
351.0
207.9
126.7
100.0
79.4
51.0
7-8
A discrepancy greater than ±1% indicates a probable fault in the circuit.
English
11
Содержание ORBISPHERE 32301
Страница 2: ...English 3 Deutsch 12 Fran ais 22 Espa ol 32 Italiano 42 Nederlands 52 Svenska 62 Suomi 71 80 2...
Страница 81: ...ORBISPHERE 1 2 DG33619 A1100 C1100 3 81...
Страница 82: ...1 1 120 230 10 LEMO 3 10 LEMO 6 1 32301 1 120 230 5 2 6 3 7 4 5 60 4 7 2 LEMO 82...
Страница 83: ...2 31xxx 31xxx 2 3 A1100 C1100 DG33619 A1100 C1100 3 DG33619 EC Orbisphere DG33620 EC EC 4 1 2 LEMO 6 1 82 3 83...
Страница 86: ...1 ORBISPHERE 2959 2 1 LEMO 6 1 82 3 2 7 3 DG33619 7 4 10 ORBISPHERE 29011 1 5 4 chloridize TIMER 5 6 7 8 86...
Страница 87: ...1 2 3 4 70 30 5 6 1 2 3 Hach Lange TEST 87...
Страница 88: ...5 LEMO 10 LEMO 10 5 LEMO 6 1 82 89 3 6 10 31331 89 31331 7 8 2 5 10 3 4 3 9 3 1 1 4 1 9 LEMO 4 9 88...
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