Buckleys BathyCorrometer Calibration Kit Manuale utente

BathyCorrometer Calibration Ki

Instruction Manua

English Version

Please read carefully before use

Contents

Description........................................................................................................... 3

Calibration........................................................................................................... 3

Kit contents: ..................................................................................................... 3

Electronics Calibration Check ....................................................................... 4

Test procedure using screw-on K-Sat reference electrodes ....................... 4

Test Using Zinc or Magnesium Blocks................................................................. 5

Long Term Storage .............................................................................................. 6

Laying-Up ......................................................................................................... 6

Re-Commissioning........................................................................................... 6

Maintenance ...................................................................................................... 7

Replacement of the Screw-In Reference Electrode........................................ 7

Disposal information ........................................................................................... 8

EC Declaration of conformity ............................................................................ 9

UKCA Declaration of conformity ..................................................................... 10

Distributor details ............................................................................................... 11

Instruction Manual

Description

The BathyCorrometer® Calibration Kit (6004-0031) can be used to verify the

accuracy and calibration status of the BathyCorrometer® Pro' as well as

older BathyCorrometer® models. The CalChecker Pro' (included in the kit)

provides a quick and simple means of verifying the accuracy of the

electronics with the BCM/BCM Pro', while 3 K-SAT Reference Cells (also

included) provide a method of verifying the silver/silver chloride screw-in

half-cell within the nosecone of the BCM/BCM Pro'.

The CalChecker Pro' provides a precise voltage which the

BathyCorrometer

Pro' should display as -1.900V. Older BCMs will display this

figure as a positive (1.900V). Calibration is required if the BCM/BCM Pro'

shows any deviation from this voltage.

The 3 K-SAT Reference Cells enable the Screw-in Half-Cell to be verified by

taking a reading using each reference cell in turn. An average of the three

readings indicates the status of the screw-in half-cell.

The difference between the displayed voltage on the BCM Pro' and -1.900V

(or 1.900V for older BCMs) may be applied to potential readings - if required

- until the unit can be sent for calibration by Buckleys or an authorised

Buckleys' Certified Distributor.

Calibration

There are two parts of a BathyCorrometer

and BathyCorrometer Pro’ which

affect its calibration:

Electronics

Silver/Silver chloride (Ag/AgCl)

reference electrode

Kit contents:

CalChecker Pro and lead

3 x K-SAT Reference Electrode Cells

Sea Water Corrosion Test Mixture

BathyCorrometer Calibration Kit

Screw Threaded tie

Bath

Corromete

®Pro’ Bod

Electronics Calibration Check

1. The electronics in the BCM/BCM Pro’ can be checked with the aid of

the CalChecker Pro’. When connected to the BCM/BCM Pro’, this

produces a precision voltage of -1.900V DC which can be compared

with the reading on the BCM/BCM Pro’. This is just a check as the

electronics are contained inside the pressure housing and cannot be

adjusted without breaking the seal.

2. If the BCM/BCM Pro’ is more than ± 2mV out from the -1.900V test

voltage, firstly check the battery in the CalChecker Pro’. If necessary,

replace with a CR1632 standard lithium primary button cell (1002-0026).

Then ensure the CalChecker Pro’ is not at fault. This can be carried out

using a calibrated precision multimeter. If the CalChecker Pro’ is within

specification, it is advised that the BCM/BCM Pro’ should be returned to

the manufacturer or certified test house for repair.

3. The warranty will be void if repairs are undertaken by anyone other than

the manufacturer or a certified test house.

Test procedure using screw-on K-Sat reference electrodes

1. Unscrew the white Delrin probe cone.

2. Smear the O-ring on the K-SAT reference

electrode with a little silicone grease.

3. Screw the K-SAT reference electrode onto

the threaded tie Rod, ensuring a tight connection

and correct seating of the O-ring. Unscrew the

K-SAT end cap to remove it.

4. Fit the shorting plug (6004-0019) and immerse the BCM/BCM Pro’ in

seawater test solution (3% salinity), ensuring that the level covers the red

Note: If checkin

the calibration of an older BCM, connect the short lead

between the CalChecker Pro’ and the BCM’s stainless steel probe tip.

Instruction Manual

Plastic

Voltage

between K-SAT

reference

and

-54mV ±

Seawater

solution 3%

nose cone. The ideal temperature for the water is 20-25°C. Note for

mixture 300 grams to 10 litres of de-ionised water.

5. Allow the electrode to reach a stable potential (10 to 15 minutes). The

voltage difference between the K-SAT electrode and the internal

silver/silver chloride electrode can be read directly off the digital display

on the BCM/BCM Pro’.

6. The voltage difference between the K-SAT electrode and the internal

silver/silver chloride electrode can be read directly off the digital display

on the BCM/BCM Pro’.

K-SAT Nominal voltage = -54mV ± 10mV.

Test Using Zinc or Magnesium Blocks

Verification of the operation of the BCM Pro’ can be carried out using Zinc

and/ or Magnesium test blocks. Potential measurements taken should be

noted

to check if any significant variation occurs. Differences in the order of

10mV or so between readings are quite possible and will mainly be caused

by variations in water salinity at different locations and/or changes in water

temperature. As a guide, readings taken in a 3% salinity solution at ambient

temperature of 25°C are as follows:

Zinc (Zn) = -1.00 to -1.08V

Magnesium (Mg) = -1.40 to -1.70V

Note: The values recorded fo

the silver/silver chloride electrode are

dependent upon the salinity and temperature of the seawater at the

time of measurement.

Note: Mixture 300

rams to 10 litres of deionised water.

Note: The BCM Pro’ displays results as a negative reading i.e. -54mV ±

10mV (K-Sat cell)

Note: Never allow water to enter the hole at the top of the K-SAT

BathyCorrometer Calibration Kit

Note: The protective caps should ALWAYS be fitted whenever the K-SAT

cells are not in use

Tarnished blocks will give a lower reading than clean ones. The test blocks

should not be left in the seawater after use. Only one test block should be

used at a time.

Long Term Storage

Laying-Up

Remove the K-SAT cells, refit their protective caps, wipe down and store in

a cool dark place.

Flush well in clean salt water (3% salt solution by weight) and allow to dry. If

contamination is suspected within the red nose cone, it may be removed to

facilitate cleaning of the nosecone, and the half cell. If the half cell is

removed, do not permit water to enter the threaded hole into which it is

installed, and do not wash the cell in fresh water – only use clean 3% salt

solution.

Clean the shorting plug and the socket in the handle. Apply silicone grease

to the plug and fit it into the handle, so that it is applied silicone grease into

the socket. Re-apply if necessary, then remove the plug and re-grease

ready for storage.

The BCM/BCM Pro’ can be stored with the battery in any state of charge.

Place the BCM/BCM Pro’, charger, probes, probe spanner, silicone grease

and the instruction manual into the carrying case.

Store the BCM/BCM Pro’ in an ambient temperature no less than 0°C or

greater than 50°C. Storage outside these temperatures may cause

damage.

Re-Commissioning

Remove the BCM/BCM Pro’ from its case and check operation by fitting the

shorting plug. Recharge the BCM/BCM Pro’ fully before checking its

operation.

It is recommended that you soak the BCM/BCM Pro’ for a minimum of 8

hours in a seawater solution.

Carry out calibration checks, see Calibration (section 1).

Instruction Manual

Maintenance

Very little maintenance is required apart from keeping the unit clean and

ensuring that the holes in the red nose cone are kept clear of any

obstructions such as dirt or marine growth etc.

The calibration of the BCM/BCM Pro’ electronics and the reference

electrode should be checked at regular intervals.

If the unit has been used in a dirty environment, the red nose cone should

be flushed with clean seawater to remove any contamination as this could

shorten the life of the reference cell. Clean the socket in the handle of the

BCM/BCM Pro’ and apply a smear of silicone grease to it and the plug to

stop the contacts corroding.

Check the condition of the O-ring in the white delrin probe cone and

replace it if necessary.

The battery charger must be maintained in accordance with local statutory

requirements for maintenance of portable electronic equipment.

Replacement of the Screw-In Reference

Electrode

Remove the stainless steel probe tip - if fitted - using an 8mm spanner.

Using a 19mm spanner, remove the white delrin probe cone.

Remove the stainless steel slotted nut and washer from the tie rod, using the

peg spanners (6005-0499 & 6005-0500).

Gently ‘rock’ and remove the red nose cone, which will expose the black

plastic reference electrode.

Carefully unscrew the reference electrode.

Ensure that there are no foreign bodies in or around the seat of the

reference electrode and the O-ring around the tie rod.

Smear the O-ring and the thread on the new reference electrode with

silicone grease (4004-0017).

Screw in the new reference electrode until the O-ring just seats, then tighten

half a turn and no more. Over tightening the reference electrode could

damage the thread.

BathyCorrometer Calibration Kit

Replace the red nose cone, ensuring that there is no debris or foreign

matter around its seat, and that the cut out is positioned to accommodate

the reference electrode.

Replace the stainless steel washer and slotted nut and tighten so there is no

gap between the red nose cone and the white body.

Check the O-rings on the inside and outside of the white delrin probe cone

and replace if necessary. Smear the O-rings with a little silicone grease, and

replace the white delrin probe cone onto the tie rod.

Replace the stainless steel probe tip.

Disposal information

Producer registration number: WEE/HJ0051TQ

For further information on UK Producer Responsibility WEEE regulations click

on:

http://www.gov.uk/government/collections/producer-responsibility-

regulations

This Product must be disposed of in accordance with UK

WEEE Producer Responsibility Regulations, or in accordance

with your local WEEE guidance.

Instruction Manual

EC Declaration of conformity

We:

Buckleys (UVRAL) Ltd

As sole manufacturer of the apparatus listed,

declare that the

product:

BathyCorrometer® Calibration Kit

Is manufactured in conformity

with

the following directives:

2014/30/EU

2014/35/EU

2015/863/EU

2011/65/EU (RoHS)

Date: 01/07/2021

Authorised by:

J P Hoveman

CEO, Buckleys (UVRAL)

Ltd.

BathyCorrometer Calibration Kit

UKCA Declaration of conformity

We:

Buckleys (UVRAL) Ltd

As manufacturer of the apparatus listed,

declare that the

product:

BathyCorrometer® Calibration Kit

Is manufactured in conformity

with

UK Legislation:



Electronic Compatibility Regulations 2016

The Electrical Equipment (Safety) Regulations 2016

Restriction of the Use of Certain Hazardous Substances in

Electrical and Electronic Equipment Regulations 2012

Date: 01/07/2021

Authorised by:

J P Hoveman

CEO, Buckleys (UVRAL)

Ltd.

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