Multi-set point profile 
controller introduced to South Africa

1st May 2009 By: Fatima Gabru

A multi-set point and multi-time point 
 profile controller, the P91, which 
 enables step functions for heating and cooling has been imported by Bartec Germany’s wholly owned South African subsidiary, Bartec Safety.

Bartec account manager Horst Kuhl explains: “The P91 enables annealing, which is the controlled temperature cooling of 
materials such as glass or steel. Annealing removes internal stresses in the material and toughens it. 
“The process controller can be set for a specific temperature profile for set times. Different profiles can be designed for different applications.”He says that interest has been shown from the bakery industry, with other target markets for the P91 being the glass and foundry industries.

The P91 is part of a range from Taiwanese controller manufacturer Brainchild. Bartec represents Brainchild’s equipment in South Africa. Brainchild’s P91 profile controller is part of a range of temperature-control equipment sized on the German Institute of Standardisation (DIN) 96 × 96 range to the 48 × 48 range.

The profile controller is available as a 
microprocessor-based control system.

Another product imported by Bartec in the past three months is the DPC III Standard and DPC III Monitor, which are part of the company’s temperature-control device range. These digital temperature-controllers are used in trace heating applications.

The DPC III Standard is a basic controller, which, in the factory setting, can be used as a two-position controller with two relay outputs for control and alarm signalling, for standard applications.

Owing to the set point basic setting, only the alarm level, or levels, need to be set. 
The easy start-up function makes the 
device user friendly. As an alternative, the same device can also be used as a controller with proportional-integral-derivative control characteristics and an external semi-conductor relay.

In addition, the DPC front Monitor (panel mtd 48 × 48) has a RS485 interface and the 
serial communications protocol a Modbus RTU.

Challenges

Meanwhile, Kuhl says that because of the global recession, clients and the company have become more price conscious and are streamlining operations and increasing efficiencies. He states, however, that the com-
pany cannot compromise on its standards and will continue with the local certification of its equipment.

The nature of Bartec Safety’s business is the manufacture of safety equipment for hazardous or explosive areas, as well as safety equipment for nonhazardous areas. In the supply of equipment to the industry, legal requirements have to be fulfilled, which cannot be compromised, he adds.

Bartec financial director Mark Masterson comments that the global recession is forcing the company to grow its footprint into Africa.The company is currently involved in the supply of heat tracing equipment for projects in Zambia, Namibia and Mozambique. Bartec’s scope of work includes the design, supply and installation of heat tracing equipment, as well as the refurbishment of other explosive-safe equipment at petrochemicals plants. The company has received interest from as far afield as Nigeria.

Bartec specialises in the design, certification, manufacture and supply of electrical and electronic equipment for use in explosive areas, applicable to most international 
standards. In addition, the company designs, engineers, manufactures and installs electrical heat tracing systems.