Care And Maintenance; Troubleshooting - Van Walt CT12 Operating Instructions Manual

Compact turbimeter

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VAN WALT

Monitoring your needs

Care and Maintenance

The Compact Turbimeter has been tested for IP67 compliance so accidental

immersion will not damage the internal components. Sample cuvette should be

clean and dry prior to insertion into the sample holder. Lint free cloths are provided

for this purpose.

Silicon oil is also present to use on scratched cuvette surfaces its use should not be

necessary unless turbidity readings are consistently higher than expected. If required

place two or three drops onto the vial and smear across the glass using the lint free

cloth.

User calibration is advised on a periodic basis, using the supplied SDVB standards.

Calibration frequency is at the user discretion and can be deduced by reading the

standards to determine any offset that may have occurred due to fouling.

Subjecting the standards to prolonged exposure to low temperatures will reduce the

NTU value. The use of a WP48 Heat Pad is recommenced in these circumstances to

prevent standard degradation. Standards have a 12 month stability and should be

replaced after this date. No prescribed maintenance intervals are possible due to

the high dependence on frequency of use, types of samples and conditions and

user protocol. Service and maintenance is available via authorised service centres

or direct from Palintest Ltd.

The Compact Turbimeter has internal diagnostics to advise on some issues as follows:

Error 100 – Measurement Off Scale

The reading is above 1050 NTU. Dilute using the provided PT 512 Dilution Tube and

clean water and re-measure.

Error 107- Blanking Error

The sample cuvette cap is not attached allowing ambient light into the

QuadoptiX™ chamber. Replace the cap and read again.

Error 110 – Battery Low

The available power is insufficient to support reliable analysis. Replace the batteries.

Other more general issues that arise may be as follows :

Compact Turbimeter

Operating Instructions

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