Troubleshooting guide, 13 7. troubleshooting guide – Thermo Fisher Scientific Eutech pH 700/Ion 700 User Manual
Page 16
13
7. TROUBLESHOOTING GUIDE
PROBLEM
CAUSE
SOLUTION
No display
a) Main power not
switched on.
b) AC Adapter
socket not
inserted
properly.
a) Switch on the power supply.
b) Re-insert AC Adapter & press
.
Unstable
reading
a) Insufficient
reference
electrolyte in
electrode.
a) Fill electrode with reference electrolyte.
b) Broken
electrode.
b) Replace electrode.
c) External ‘noises’
or induction
(e.g. electrical
‘noise’ caused
by a nearby
motor).
c) Remove or switch off interfering device.
d) Dirty electrode.
d) Clean & rehydrate the electrode.
Slow
response
a) Dirty electrode.
a) Clean & rehydrate the electrode.
Meter not
responding
to key press
a) HOLD mode
in operation.
b) Bad keypad.
a) Press
to deactivate. See SETUP
to disable Auto Hold feature if enabled.
b) Contact Technical Service.
- 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)