EUTECH INSTRUMENTS Ion 700 User Manual

6. 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
.
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.
Unstable
reading
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.
11

EUTECH INSTRUMENTS Ion 700 Specifications

General

pH Range	-2.00 to 16.00 pH
Calibration Points	Up to 5 points with Auto-buffer recognition, From 2 to 5 consecutive points; 0.1, 1.0, 10.0, 100.0 or 1000.0 ppm
Buffer Options	USA : pH 1.68, 4.01, 7.00, 10.01, 12.45 NIST: pH 1.68, 4.01, 6.86, 9.18, 12.45
mV Range	± 2000 mV
Temperature Range	0.0 to 100.0 ºC / 32.0 to 212.0 ºF
Calibration	Offset in 0.1 º increments; Offset range: ± 5.0 ºC / 9.0 ºF
Ion Range (Ion 700 only)	0.01 to 2000 ppm ( ± 2000mV)
Resolution	0.01 pH, 0.1 mV (± 199.9 mV), 1 mV beyond ± 200 mV, 0.1 ºC / ºF
Accuracy	± 0.01 pH, ± 0.2 mV (± 199.9 mV), ± 2 mV beyond ± 200 mV, ± 0.3 ºC/± 0.5 ºF (0 to 70 ºC), ±0.5% FS (mono-valent) ±1.0% Full Scale (di-valent)
Offset Adjustment	Up to ±150 mV
Compensation	Automatic or Manual (0 to 100 ºC / 32 to 212 ºF)
Resolution (ppm)	0.01/ 0.1/1 ppm
Slope Range	15 mV/decade to 90 mV/decade
Slope Display	Yes (with offset)
Memory	100 data sets
Inputs	BNC, ATC, Reference (Half-cell)
Power	AC/DC 9V, 6W Adapter (100/240 VAC, 50-60Hz)