Hach MTC301 User manual

DOC022.53.80026
MTC301
05/2021, Edition 4
User Manual

Table of Contents
Section 1 Product overview................................................................................. 3
Section 2 Specifications........................................................................................ 3
Section 3 Safety information............................................................................... 4
3.1 Intended use ....................................................................................................... 4
3.2 Use of hazard information..................................................................................... 4
3.3 Precautionary labels............................................................................................. 4
3.4 Product hazards.................................................................................................... 5
Section 4 Preparation for use.............................................................................. 5
Section 5 Calibration.............................................................................................. 7
5.1 Calibration notes................................................................................................... 7
5.2 Calibration procedure........................................................................................... 8
Section 6 Sample measurement....................................................................... 8
6.1 Sample measurement notes................................................................................. 8
6.2 Sample measurement procedure......................................................................... 9
Section 7 Verify the calibration.......................................................................... 9
7.1 Verification procedure......................................................................................... 10
Section 8 Maintenance........................................................................................ 10
8.1 Clean the probe.................................................................................................. 10
8.2 Fill the probe....................................................................................................... 11
8.3 Replace the filling solution.................................................................................. 11
8.4 Storage............................................................................................................... 12
Section 9 Troubleshooting................................................................................. 13
Section 10 Consumables..................................................................................... 13
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Table of Contents
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Section 1 Product overview
The Intellical MTC301 series ORP probes are digital, combination electrodes that measure the
oxidation reduction potential (ORP/Redox) of wastewater, drinking water and general water samples.
The probes are refillable and have a built-in temperature sensor and a ceramic pin reference
junction. A 28-mL bottle of reference electrolyte filling solution is supplied with the probe. Refer to
Figure 1.
Note: Do not use the probe for measurements in organic solvents.
Figure 1 Probe overview
1 Probe soaker bottle with storage solution 5 Cable
2 Platinum electrode, reference junction and
temperature sensor
6 Probe soaker bottle holder
3 Filling-hole plug 7 Electrode filling and storage solution
4 Protective tape and filling hole
Section 2 Specifications
Specifications are subject to change without notice.
Specifications Details
Probe type Digital combination electrode with a refillable Ag/AgCl
reference and a built-in temperature sensor
Range ±1200 mV
Resolution 0.1 mV
Reference type Ag/AgCl
Reference junction Ceramic pin
Temperature accuracy ±0.3 °C (±0.54 °F)
Operating temperature 0 to 80 °C (32 to 176 °F)
Storage temperature 5 to 40 °C (41 to 104 °F)
Minimum immersion depth 20 mm (0.79 in.)
Body material (standard) Epoxy
English 3