Table of Contents
Advertisement
Calibration
Before calibration:
The probe must have the correct service-life time stamp. Set the date and time in the meter before the probe is attached.
It is not necessary to recalibrate when moving a calibrated probe from one HQd meter to another if the additional meter is
configured to use the same calibration options.
To view the current calibration, push
If any two probes are connected, push the UP or DOWN arrow to change to the single display mode in order to show the
Calibrate option.
Prepare the probe for use (refer to
1. Connect the
2. Push
probe to the
Calibrate. The
meter. Make sure
display shows the
that the cable
ORP/Redox
locking nut is
standard solution
securely
that is necessary
connected to the
for calibration.
meter. Turn on the
meter.
, select View Probe Data, then select View Current Calibration.
Preparation for use
Calibration notes:
•
Additional standards can be selected in the Calibration Options.
•
Do not dilute ORP/Redox standards. Use fresh ORP/Redox standard for calibration.
•
ZoBell's redox potential is temperature dependent. The HQd calibration routine
factors in this temperature dependency allowing accurate calibrations within the
temperature range of 0 to 30 °C (32 to 86 °F). Light's solution should be read at 25 °C
(77 °F). Custom ORP/Redox calibration solution values and temperature are user-
defined.
•
The calibration is recorded in the probe and the data log. The calibration is also sent
to a PC, printer or flash memory stick if connected.
•
Air bubbles under the sensor tip when submerged can cause slow response or error
in measurement. If bubbles are present, gently shake the probe until bubbles are
removed.
•
If a calibration error occurs, refer to
Calibration procedure:
3. Add the fresh
ORP/Redox
standard solution
to a beaker or an
appropriate
container.
on page 2).
Troubleshooting
4. Rinse the
probe with
deionized water.
Blot dry with a lint-
free cloth.
on page 12.
5. Put the probe
in the standard
solution so that
the temperature
sensor is
completely
submerged. Stir
gently. Shake the
probe from side to
side in the sample
to refresh the
reference junction.
3
Advertisement
Table of Contents
