Thermo Fisher Scientific Alpha pH 190 (In the process of updating the brand guideline & product image) User Manual
Page 39
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Symmetrical mode:
For noisy electrical environments, the alpha pH 190
controller offers Symmetrical Mode operation. To take
advantage of Symmetrical operation, you must have an
electrode with a solution ground (potential matching) pin,
such as the EC-ARGTSO-05B or EC-100GTSO-05B.
If your electrode does not have a solution ground, be sure
to set the controller to Asymmetrical mode.
Symmetrical mode avoids grounding the reference
electrode by reconfiguring the input to a floating
differential mode. The electrical noise appears equally on
the pH and reference electrodes, and is therefore rejected
by the operational amplifier.
See also other documents in the category Thermo Fisher Scientific Tools:
- PCTestr 35 (2 pages)
- pHScan BNC (3 pages)
- pHScan 3/3+ (5 pages)
- pHTestr 1 (3 pages)
- pHTestr 10/20/30/10 BNC/Spear (2 pages)
- ORPTestr 10/10 BNC (2 pages)
- EC/TDS/SaltTestr 11 (4 pages)
- EC/TDS/SaltTestr (2 pages)
- ECScan High/Low & TDScan High/Low (9 pages)
- SaltTestr (2 pages)
- EcoTestr pH 2 (2 pages)
- EcoTestr pH 1 (2 pages)
- EcoTestr EC High (2 pages)
- EcoTestr EC Low (2 pages)
- EcoTestr TDS High (2 pages)
- EcoTestr TDS Low (2 pages)
- EcoTestr Salt (2 pages)
- Eutech pH 5/6 Plus & Ion 6 Plus (New version R1.1, SN >797406) (23 pages)
- Eutech pH 5/6 Plus & Ion 6 Plus (Old version EP6, SN <797406, discontinued) (23 pages)
- Eutech COND/TDS/Salt 6 Plus (40 pages)
- Eutech DO 6 Plus (48 pages)
- EcoScan pH/Ion 5 & 6 (27 pages)
- EcoScan CON 6 & TDS 6 (56 pages)
- EcoScan CON 5 & TDS 5 (18 pages)
- EcoScan Salt 6 (40 pages)
- EcoScan DO 6 (80 pages)
- CyberScan pH 10/pH 100 (67 pages)
- CyberScan pH 11/pH 110 (76 pages)
- CyberScan CON 10/CON 100/CON 200 (62 pages)
- CyberScan CON 11/CON 110 (80 pages)
- CyberScan DO 110 (60 pages)
- CyberScan PCD 650 (127 pages)
- CyberScan CON 400/410 (For units manufactured before March 2010, discontinued) (60 pages)
- CyberScan CON 400 (For units manufactured from March 2010 onwards) (60 pages)
- CyberScan pH 300/310 (52 pages)
- CyberScan DO 300 (60 pages)
- CyberScan PC 300 (72 pages)
- CyberScan PD 300 (76 pages)
- CyberScan PC 10 (31 pages)
- C401 Colorimeter (64 pages)
- TN100 Turbidimeter (31 pages)
- RS232C Interface Adapter (9 pages)
- Thermo Scientific Temp 360 (44 pages)
- Thermo Scientific Temp 340 (40 pages)
- Thermo Scientific Temp 300 (32 pages)