Specification - ABB AX416 User Manual

SPECIFICATION

pH/Redox (ORP) – AX460 and AX466
Inputs
One or two* pH or mV inputs and solution earth
One or two* temperature sensors
Enables connection to glass or enamel pH and reference sensors
and Redox (ORP) sensors
*AX466 only
Input resistance

Glass >1 x 10 13

Reference 1 x 10 13
Range
–2 to 16pH or –1200 to +1200mV
Minimum span
Any 2pH span or 100mV
Resolution
0.01pH
Accuracy
0.01pH
Temperature compensation modes
Automatic or manual Nernstian compensation
Range –10 to 200C (14 to 392F)
Process solution compensation with configurable coefficient
Range –10 to 200C (14 to 392F)
adjustable –0.05 to +0.02%/C (–0.02 to +0.009%/F)
Temperature sensor
Programmable Pt100, Pt1000 or Balco 3k
Calibration Ranges
Check value (zero point)
0 to 14pH
Slope
Between 40 and 105% (low limit user-configurable)
Electrode Calibration Modes
Calibration with auto-stability checking
Automatic 1 or 2 point calibration selectable from:
ABB
DIN
Merck
NIST
US Tech
2 x user-defined buffer tables for manual entry,
2-point calibration or single-point process calibration
Conductivity – AX416 Only
Range
Programmable 0 to 0.5 to 0 to 10,000S/cm
(with various cell constants)
Minimum span
10 x cell constant
Maximum span
10,000 x cell constant
Units of measure
S/cm, S/m, mS/cm, mS/m, M-cm and TDS
Accuracy
Better than 0.01% of span (0 to 100S/cm)
Better than 1% of reading (10,1000S/cm)
Operating temperature range
–10 to 200C (14 to 392F)
Temperature compensation
–10 to 200C (14 to 392F)
Temperature coefficient
Programmable 0 to 5%/C and fixed temperature compensation
curves (programmable) for acids, neutral salts and ammonia
Temperature sensor
Programmable Pt100 or Pt1000
Reference Temperature
25C (77F)
Display
Type
Dual 5-digit, 7-segment backlit LCD
Information
16-character, single line dot-matrix
Energy-saving function
Backlit LCD configurable as ON or Auto-Off after 60s
Logbook*
Electronic record of major process events and calibration data
Real-time clock*
Records time for logbook and auto-manual functions
*Available if option board is fitted
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