Specification
MXD70 pH / Redox
Setup and Operating Guide
- 5 -
Specification
pH / Redox Input Card Specification
Measurement Input
Single ended or differential with solution ground. Up to 100
meters cable.
pH
Separate glass and reference electrode pair.
Separate Antimony and reference electrode pair.
Combination electrode.
SensorTalk digital or hybrid electrode.
Redox
Separate glass and reference electrode pair.
Separate Antimony and reference electrode pair.
Combination electrode.
SensorTalk digital or hybrid electrode.
Other manufacturer’s sensors can be accommodated.
Ranges of Measurement
0.00 to 14.00 pH, 0.000 to 14.000 pH
-1999mV to +1999mV.
Accuracy
± 0.05 pH. ± 3mV.
Linearity
± 0.1% of range.
Repeatability
± 0.1% of range.
Operator Adjustment
Slope
Offset
pH 60-120% 3 to 11pH
Antimony 60-120% -4 to +4pH
Redox NA -400mV to +400mV
Calibration Methods
Automatic 4pH / 9pH Buffer Calibration.
Manual Slope and Offset Adjustment.
Automatic loading of stored calibration data from pre-
calibrated SensorTalk electrodes.
All methods feature post-calibration electrode condition
indication.
Custom Buffer
13-point 4pH / 9pH custom buffer entry pre-loaded with
standard LTH buffers.
Calibration Timer
Inbuilt calibration count down timer which will trigger an
alarm when calibration interval has expired.
Sensor Input filter
Adjustable filter that averages the sensor input over a user
selectable time (10sec – 5mins).
Temperature Sensor
Pt100, Pt1000, 3K Balco RTD input. Up to 100 meters of 3
wire cable. Temperature sensor can be mounted in the
sensor or separately.
Range of Temperature
Measurement
-50 °C to +160 °C (-58 °F to +320 °F) (223.15K to 433.15K) for
full specification.
Note. When units are set to temperature the reading will be
calculated to 2 decimal points between -9.99 and +99.99.
Temperature Accuracy
± 0.2 °C (When using a 3 wire PT1000).
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