Appendix C

Sigma 900 MAX Refrigerated Sampler Troubleshooting Issues

Problem

Cause

Solution

 

 

 

 

Blown Fuse.

Check the 5-amp fuse on the back of the controller.

Instrument Will Not

 

 

Circuit breaker issue.

Check the circuit breaker for the main power.

Power Up With ac

 

 

Breaker is good, but still no power.

Check to see if the outlet is receiving power.

Power.

 

 

 

Breaker and outlet are good, still no power.

Try using a battery or another power supply

 

 

 

 

If any holes on the anchor strainer are not

Make sure the anchor strainer is

Sampler Will Not

submerged the sampler will not create a lift.

completely submerged.

 

 

Create Sufficient Lift.

Intake tubing is nicked or has a small hole.

Replace with new tubing.

 

 

 

 

Worn roller assembly and/or pump tubing.

Replace assembly and/or tubing.

 

 

 

 

The volume was calibrated incorrectly the

Make sure the proper calibration method is used for

 

first time.

the site conditions (Auto or Timed calibrate).

 

 

 

 

Incorrect intake tube length is programmed in

Re-enter the tube length.

 

the sampler.

 

 

 

 

 

 

Intake tubing is not completely purging.

Place the tubing at a downward slope from the

 

sampler to the liquid source.

 

 

 

 

 

Inaccurate Sample

Anchor stainer is intermittently submerged.

Install the shallow depth anchor strainer,

(Cat. No. 2071 or 4652).

Volumes

 

 

 

Worn roller assembly and/or pump tubing.

Replace assembly and/or pump tubing.

 

 

 

 

 

When using “Timed Calibrate” (liquid sensor

Enable sensor and calibrate volume if site

 

disabled) variable lifts will cause variable

 

conditions allow.

 

sample volumes.

 

 

 

 

 

 

Liquid sensor is not functioning properly.

Check the liquid diagnostics screen for valuable

 

information about sensor sensitivity.

 

 

 

 

 

 

RPM’s of the motor vary.

Replace motor if necessary.

 

 

 

 

Improper calibration.

Make sure the unit has been calibrated.

 

 

 

 

Desiccant is pink.

Replace the desiccant.

 

 

 

 

The sensor was not acclimated to the air

Re-calibrate the sensor making sure the sensor is at

Submerged

temperature before calibrated.

ambient temperature.

Pressure Sensor

 

 

 

Clean the area and re-calibrate. To reduce debris on

level readings are

 

 

the cable and mounting band, route the cable along

inaccurate or no

 

Water or debris in the atmospheric

the edge of the band and wrap the cable and

change in level

reference tube.

mounting band with plastic tape. The cable should exit

readings.

 

at or near the top of the pipe to keep it out of the flow

 

 

 

 

stream.

 

 

 

 

Level is trending downward because debris at

Remove the plate and carefully clean the transducer.

 

the diaphragm.

Re-calibrate the sensor.

 

 

 

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Troubleshooting and Error Messages

8990apdx_tbl.fm

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Hach 900 MAX manual Problem Cause Solution
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900 MAX specifications

The Hach 900 MAX is an advanced analytical instrument designed to perform water quality analysis with precision and efficiency. This multiparameter water quality analyzer is tailored for a wide range of applications, including environmental monitoring, wastewater treatment, and industrial processes. Its unique design and technology make it a valuable tool for professionals in the field.

One of the standout features of the Hach 900 MAX is its ability to measure multiple parameters simultaneously. Equipped with advanced sensors, the device can analyze key water quality indicators such as pH, turbidity, dissolved oxygen, conductivity, and various chemical parameters. This comprehensive measurement capability allows users to gain a complete understanding of water quality in a single run, saving both time and resources.

The Hach 900 MAX utilizes cutting-edge technologies to provide accurate and reliable results. Its integrated optical sensors employ advanced photometry, which enhances the detection of chemicals in water samples with high sensitivity. Additionally, the device includes advanced calibration management tools that ensure consistent accuracy over time. Users can easily perform routine calibrations with minimal effort, facilitating reliable data collection.

Another notable characteristic of the Hach 900 MAX is its user-friendly interface. The instrument features a large, touchscreen display that allows for intuitive navigation through various settings and parameters. Users can quickly access real-time data, generate reports, and analyze trends using the built-in software. The ability to customize dashboards and create visual representations of data enhances user experience and simplifies the decision-making process.

In addition to its analytical capabilities, the Hach 900 MAX emphasizes connectivity and data management. The instrument can be connected to laboratory information management systems (LIMS) and other data networks, enabling smooth data transfer and integration into existing workflows. This connectivity enhances collaboration among team members and facilitates compliance with regulatory requirements.

Durability is another hallmark of the Hach 900 MAX. The device is designed for use in demanding environments, with robust construction and protection against dust and moisture. This reliability ensures that the analyzer remains operational even in challenging conditions, making it suitable for field applications.

Overall, the Hach 900 MAX stands out as a powerful and versatile tool in the realm of water quality analysis. With its multiparameter measurement capabilities, advanced sensor technologies, user-friendly interface, and reliable performance, it enables professionals to obtain accurate insights into water quality efficiently. As environmental concerns continue to grow, instruments like the Hach 900 MAX play a crucial role in ensuring the safety and sustainability of water resources.
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