Cooled light detector module

November 2001 Maintenance, Test & Measurement, Calibration

Electron Tubes' CDM30 is a new temperature stabilised light detector module consisting of a photomultiplier and a housing. By maintaining the temperature to within ±0,2°C, stable photomultiplier gain and quantum efficiency is assured. Cooling down to 40° below ambient is possible with a fast cool-down of typically 20 minutes. Reduction of dark counts, particularly with the S20 photocathode types, allows up to two orders of magnitude to be attainable.

The CDM30 uses a thermoelectric cooler to transfer heat from the pmt to a fan-cooled heatsink. The pmt is surrounded by thermal insulation including an evacuated double-walled Pyrex glass optical window.

Both cooler and fans operate from a single +12 V input. An integral control board allows the pmt temperature to be set by an onboard potentiometer and monitored using an external DVM. The housing includes an active voltage divider with connectors on the back plate for HV input and pmt signal output. The CDM30 is intended for use with any of Electron Tubes' 30 mm diameter, 112 mm long, 11-stage pmts. Electron Tubes is represented locally by OEN Enterprises.

OEN Enterprises

(011) 792 2859

[email protected]

www.oenenterprises.co.za

Further reading:

WearCheck leads the way in condition monitoring
Wearcheck Maintenance, Test & Measurement, Calibration
Minimising maintenance costs of mining and power-generating machinery and maximising its operational efficiency – these goals form the foundation of the proactive/preventive maintenance services provided by the expert technicians at condition monitoring specialist, WearCheck.

Read more...

---

Collect data three times faster
SKF South Africa Maintenance, Test & Measurement, Calibration
SKF has extended its renowned Microlog Analyzer family of data collection devices with the addition of the Microlog Analyzer dBX. Currently SKF’s most powerful diagnostic tool, this cutting-edge device redefines diagnostic capabilities, enabling users to take measurements three times faster than its predecessor.

Read more...

---

Integrated liners for the mining industry
Maintenance, Test & Measurement, Calibration
Multotec has developed a range of composite integrated mill liners in response to the needs of local and international mining clients.

Read more...

---

The criticality of maintenance in the water and wastewater segment
Schneider Electric South Africa Maintenance, Test & Measurement, Calibration
In a time of water shedding, climate change and ageing infrastructure, the importance of maintenance and support in the water and wastewater segment cannot be overstated.

Read more...

---

How dry ice blasting is revolutionising the mining industry
Maintenance, Test & Measurement, Calibration
Dry ice blasting has emerged as a game-changing technology for the mining industry, offering a range of advantages that are reshaping traditional cleaning methods.

Read more...

---

Quality test tools save costs at pulp and paper mill
Comtest Editor's Choice Maintenance, Test & Measurement, Calibration
A case study on how preventive maintenance and a few good test tools avoided unnecessary motor replacements at a pulp and paper company.

Read more...

---

The logical solution to oil and gas industry corrosion
Maintenance, Test & Measurement, Calibration
The consequences of corrosion in the oil and gas industry can be astronomical. The simple culprit is metal reacting with oxygen and moisture, degrading it back to its natural state.

Read more...

---

Lube tip: foaming is affected by oil level
Wearcheck Maintenance, Test & Measurement, Calibration
In a circulating system, it is crucial to check the oil level before introducing anti-foam agents to address a foaming problem.

Read more...

---

Microfine filtration boosts fuel quality and reduces equipment failure
Maintenance, Test & Measurement, Calibration
The path to contamination-free fuels relies on a combined effort from refiners to transporters, storage depots, handlers and end users. Prior to use, fuels can be polished with multi-pass microfine filtration systems such as those exclusively manufactured by ISO-Reliability Partners.

Read more...

---

Supporting capital investment in machinery
Maintenance, Test & Measurement, Calibration
Industrial and mining operations are under increased financial pressure in the current economic and social climate in South Africa. This means that when businesses make capital investments in new equipment, they need to be sure that the machinery will function optimally for as long as possible.

Read more...

---