Mass production of pressure transmitters reduces costs.

With an investment of £2.4 million, the well established series 21 pressure transmitter from Keller has been developed into the series 21S (stainless steel) and 21M (brass) and is now manufactured using their new production line, capable of a throughput of more than 1000 units per hour.

This new approach has resulted in physically smaller units (17 x 60mm), higher volume production capability, and significant price reductions.

With OEM users in mind, the new series 21S and 21M has evolved into an attractive range of pressure transmitters with little sacrifice in performance, but with fast reliable delivery of large quantity orders and highly competitive pricing.

Typical unit costs are £24 for a quantity of 1000, reducing to £10 for an order of 50,000.

The new investment includes a continuous, belt-fed production line facility capable of brazing 316 stainless steel or brass, together with automatic sensor calibration and compensation, handling batches of up to 200 units.

Production capability is now up to 50,000 units per week.

The complete sensor is fitted with a miniature PCB made for Keller by AMI (Advanced Microsystems Inc.) with chip-on-board amplifiers, regulator and Keller 'ProgRes' ASIC compensation.

Several pressure ranges are available from 0..5 to 0..200 bar sealed gauge with a choice of output configurations:

(a). 4-20mA / 8-32 Vdc (2 wire)

(b). 0.5..4.5 Vdc / 5 Vdc (3 wire)

(c). 0..100mV / 10 Vdc (4 wire)

With a total error band at 25ºC of 0.5% (21S) or 1.0% (21M). Pressure port fitting is G1/4 male.

For more information, please contact:-

Keller (UK) Ltd.
Winfrith Technology Centre, Dorchester DT2 8DH. UK
Tel: +44(0) 845 643 2855 Fax: +44(0) 845 643 2866

June 2000 - Ref: 9276

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