
Accessories and modifications
Page 10
RES-408
Version 1
5.2
Modifications (MODs)
Owing to its universal design, the RES-408 RESISTRON temperature controller is suitable for a very wide range
of heatsealing applications.
Various modifications (MODs) are offered for the RES-408 RESISTRON temperature controller for implementing
special applications.
The modifications described here are just a few of the large number available. Separate documentation is supplied
for all modifications.
MOD 01
Amplifier for low secondary voltages (U
R
= 0.25…16VAC). This modification is necessary, for example, for very
short or low-resistance heatsealing bands.
MOD 26
Additional terminal for connecting an external switching amplifier (booster). This modification is necessary for high
primary currents (continuous current > 5A, pulsed current > 25A).
MOD 37 (up to May 2006)
Additional rotary coding switch for the heatsealing band alloy and the temperature range. Various heatsealing
band alloys (e.g. Alloy A20, LEX3500) and temperature ranges (e.g. 300°C, 500°C) can be selected.
Booster
External switching amplifier, necessary for high primary currents
(continuous current > 5A, pulsed current > 25A).
Monitoringcurrent transformer
For detecting frame short-circuits on the heatsealing band.
Used as an alternative to the standard PEX-W2/-W3 current transformer.