Hanna Instruments HI 4115 - Manual (Page 3)

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IV. IV. IV. IV. IV. Design elements of the HI 4015 and HI 4115 Design elements of the HI 4015 and HI 4115 Design elements of the HI 4015 and HI 4115 Design elements of the HI 4015 and HI 4115 Design elements of the HI 4015 and HI 4115
electrodes electrodes electrodes electrodes electrodes
V. Equipment required: V. Equipment required: V. Equipment required: V. Equipment required: V. Equipment required:
•
Hanna HI 5315 Double Junction Reference Electrode
with HI 7072 Fill Solution for use with HI 4015.
•
Hanna HI 4222 pH/ISE/mV meter or other suitable
ion or pH/mV meter. (Note: log/linear graph paper is
useful if an ISE (ion) meter is not available).
•
Hanna HI 180 Magnetic Stirrer or equivalent with
Teflon coated stirring bars (HI 731320). (Note: iso-
late beakers from stirrer motor heat by placing insu-
lating material such as foam or cork between them).
•
Hanna HI 76404 Electrode Holder or equivalent.
•
Plastic beakers (HI 740036P) or other suitable mea-
surement vessel.
VI. VI. VI. VI. VI. Solutions Required for Calibration Solutions Required for Calibration Solutions Required for Calibration Solutions Required for Calibration Solutions Required for Calibration
Select appropriate Hanna Instruments standard and ISA
from the list below:
0.1 M Silver Standard, 500 mL HI 4015-01
ISA for Silver measurement, 500 mL HI 4000-00
SAOB for Sulfide measurement, 500 mL HI 4015-00
Note: For Sulfide standard, see directions that follow.
Silver Standards
For Molar solutions:
Using volumetric pipettes and glassware make serial dilu-
tions of HI 4015-01 to approximately bracket the concen-
tration of the samples. Standards with concentrations
< 10
-3 M should be prepared daily. Store in dark plastic
bottles.
Two mL of Hanna ISA for Halide electrodes (HI 4000-00)
should be added to 100 mL of sample or standard.
For ppm solutions:
Prepare 1078.7 ppm Silver standard by diluting HI 4015-
01: Pipette 100 mL standard to a 1 liter volumetric flask.
Add deionized water to volume. Using additional pipettes
and glassware make serial dilutions of this 1078.7 ppm
standard to bracket the sample concentra-
SIL
VER/SULFIDE
HI 4015
Cap
Sensing
Membrane
Sensor
Handle
Upper Cap
Spring
O-Ring
Ceramic Junction
on Inner Stem
Fill Hole
O-Ring and
Plug
Sensing
Membrane
Outer Sleeve
Upper
Threads
Liquid junction