In-situ pH Sensor User Manual download pdf

Technical Note

Innovations in

Water Monitoring

Instruction Sheet

Innovations in

Water Monitoring

Page 1 Page 1

Description

The In-Situ® Inc. pH sensor is a combination, single-

junction electrode that contains a replaceable junction

and rellable reference electrolyte solution. The pH

sensor is designed and manufactured for long-lasting,

accurate results in a variety of environmental waters.

Installation

The TROLL 9500 may be shipped with a pH sensor

installed. If installation is necessary, unpack and install

the sensor in port 1 or 3 of the TROLL 9500, Figure 1.

1. Remove the restrictor or Cal Cup from the front

end of the TROLL 9500. This allows access to the

sensor block.

2. Remove the sensor hydration bottle and set aside

for future storage of the sensor.

3. Rinse the sensor with clean water.

4. Remove any moisture or dirt from the area around

the port where you will install the sensor, then use

the sensor removal tool to remove the plug from

the port. Retain the plug for future use.

5. Remove any moisture or dirt from the port

connector with a clean swab or tissue.

6. Remove the cap from the sensor connector. Check

lubrication of the sensor o-rings. If the o-rings

appear dry, apply silicone lubricant, provided in the

sensor box, before installation.

7. Visually align the sensor connector pins with the

port connector pins.

8. Press the sensor firmly into the port until you feel

it dock with the port connector. When properly

inserted, a small gap (the width of the sensor

removal tool) remains between the instrument

body and the widest part of the sensor, for ease

of removal.

Calibration

Although pH may be calibrated with Quick Cal (1

point at pH 7), for best results In-Situ recommends a

2- or 3-point calibration. These options are available in

the software:

• Traditionalcalibration–1point:requires a single

solution; results in calculation of sensor oset for a

single pH value (pH 4, 7, or 10). Select a calibration

solution for the pH range you expect to measure.

• Traditionalcalibration–2point:requires 2

solutions; results in calculation of sensor slope and

oset for one pH range (pH 4-7 or pH 7-10). Choose

solutions for the pH range you expect to measure.

• Traditionalcalibration–3point:requires 3

solutions; results in calculation of slope and oset

for 2 ranges (pH 4-7 and pH 7-10). The correct

slope for the pH values being monitored will

automatically be applied.

• DefaultCoecients: Resets factory defaults to the

sensor. No solutions are required.

Calibration Procedure

pH Sensor

Part Number 0059510

Figure 1. TROLL 9500 pH Sensor Positions

1 2 3 4 5

Summary of Contents

Page 1 - Instruction Sheet

Technical NoteInnovations in Water MonitoringInstruction SheetInnovations in Water Monitoring Page 1 Page 1 DescriptionThe In-Situ® Inc. pH s

Page 2 - Calibration Notes:

Page 2 1. Fill the Cal Cup to the ll line with the selected calibration solution and attach to the instrument.a. With a full set of sensors ins

Page 3 - Sensor Handling and Storage

Page 3 STABLE is displayed when the readings have stabilized. The calibration automatically proceeds to the next screen.• Temperature and baromet

Page 4 - Page 4

Page 4 the dust cap it shipped with, or wrap the sensor in a paper towel to prevent lling solution from entering the electrical connector.4. Hol

Page 5 - Speciﬁcations

Page 5 Information subject to change without notice. In-Situ, In-Situ logo, Baro Merge, BaroTROLL, HERMIT, RDO, Pocket-Situ, RuggedCable, RuggedRe

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In-situ pH Sensor User Manual

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