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NEW!! Digital Verticality Tester - VERTMET-MI

Use for new ASTM Validation Procedure
The Digital Verticality Meter provides an immediate digital reading of any angle in a full circle with 0-90°-0-90°-0 readings. The machined aluminium frame is rigid and light with a precise platform that allows the sensor and its microprocessor circuit to provide height accuracy throughout the entire 360° range.
Perfect for the new ASTM E 2503-07 Mechanical calibration requirements to check basket and paddle shaft verticality as noted in ASTM E 2503-07, chapter 4.5.2 which states:

"Use an accurate digital level device to determine that the shafts are vertical in two directions 90° apart around the vertical axis while the drive unit is in the operating position"
"V" groove base allows for easy alignment upon basket and paddle shafts.

Complete Dissolution Validation Toolkit - VALTOL-KT2

Your complete kit for accurate dissolution

Toolkit contents:
• Depth Set Gauge
• Universal Spirit Level
• Vessel Centering Gauge
• Wobble Meter
We recommend that you regularly check the physical parameters of your dissolution tester. Things can — and do — go out of alignment between validation intervals. Sometimes a simple visual inspection is enough but with these easy to use tools, it only takes a few minutes to ensure that your tester is operating to the best standards.

Custom Toolkits:
This toolkit represents the most popular combination of dissolution validation tools. All the validation tools are available either individually or in any combination as a kit, complete with certification

VALTOL-CUST

Depth Setting Gauge - DEPSET-MI

It is essential to accurately set the height above the the bottom of the vessel of paddles and baskets. The USP states 25mm ±2mm as an acceptable limit.
This QLA depth gauge is a simple tool consisting of a metal rod with a 25mm PTFE ball fixed to the end. It is compatible with all open-top baths.
To set the correct depth, simply place the ball in the bottom of the vessel, lower the paddle or basket until it touches the ball and then fix the shaft in position. The height is then correctly set at 25mm

Optical Tachometer - TACHOM-UN

Accurate stirring speeds of baskets and paddles are essential for good dissolution. The USP states that the stirring speed should be ±4rpm. In fact, this is a wide margin and typically most modern dissolution testers should be able to operate with an tolerance of ±0.1rpm.
The most accurate form of testing rotational speed is with an Optical Tachometer, such as this. A reflective sticker is placed on the shaft or shaft drive. The optical tachometer shines an Infrared light on to the shaft at this point. The reflectance is measured at every rotation, giving an accurate reading of the rotational speed.

Calibrated & Certified Digital Thermometer - THERMD-LC

This is an extremely accurate thermistor-based thermometer. It is ideal for validating dissolution bath and media temperature as well as general lab use.
A simple switch lets you set the digital display to show either Celsius or Fahrenheit readings.
Specifications:

Vessel Centering Gauge - CNTGAG-MI

Ensure your vessels are perfectly centered

Key benefits:
• Quickly and easily mounts in all vessel positions
• Stationary, easy to read dial
• High resolution — one division = 0.05mm
• Range of >4mm
• Works with all instruments that have access to the vessels in the operating position
Accurate centering is an essential part of dissolution equipment validation. Many centering devices do not accurately take into account the actual position of the shaft in the vessel, or the vessel in the base plate.
The Centering Gauge fits directly into the shaft drive. The PTFE coated lever is lowered into the vessel, approximately half way down. (It is important not to measure centering near the top of a vessel because of errors in the glass at this point).
The shaft is rotated slowly (25rpm) and the lever moves around the inside of the vessel. Deviation from the centre position can then be read on the dial, which always faces forwards. Acceptable values are ±2mm from the centre point.

Vibration Meter - VIBMET-UN

How this vibration meter works:
This simple vibration meter allows users to quickly asses vibration levels and ensure that low levels are maintained when new equipment is introduced into the lab or after routine bath maintenance.
It uses digital electronics but is equipped with an analogue needle display. For this type of device, an analogue display is better than a digital one because it gives you a much better feel for the nature of the vibrations.
The meter uses an accelerometer probe that is calibrated to the meter as a matched set. The probe end has a custom mounting block that is compatible with most dissolution instruments.
The meter and probe come complete with:
• NIST traceable calibration certificate
• Industrial grade battery
• Protective carry case

Wobble Meter - WOBMET-MI

Measure basket and paddle shaft wobble quickly and easily

Key benefits:
• Quickly and easily mounts to all vessel positions
• Flat nosed, plastic indicator tip that won't damage shafts
• Includes NIST Traceable calibration certificate
• Simple low cost design
• Large, easy to read dial indicator

Wobble is defined as the variation from the vertical of a rotating shaft or basket. The USP defines the maximum acceptable wobble as ±0.5mm.

Wobble is measured on a paddle, just above the position of the blade. With a basket it should be measured on the rim of the basket. This highlights the need for correct handling and storage of baskets and shafts. Bent baskets or worn clips are not acceptable.

The wobble meter is very simple to use. It uses a special vessel cover that fits inside the top of the vessel. This provides a static anchor point for the meter. (External devices offered by other companies tend to be hard to keep in position).

The wobble meter is firmly attached to this cover. The gauge is placed against the shaft or basket that is then rotated at a slow speed. Deviation from the vertical is displayed on the easy-to-read dial. The test is repeated in each vessel position.