KLD5 electronic differential pressure switches don't require a threaded connection to the system. They work exclusively electronically. Their function is to give an adjustable alarm signal upon reaching a differential pressure supplied by 2 transducers with an exit signal of
0 -10 Volts.
The particular advantage of this instrument is to supply two independent alarm set points with adjustable hysteresis.
Example: In a system with two transducers A and B, KLD5 electronic pressure switches permit the following functions:
- a signal of alarm L1 (adjustable on the scale) when A > B
- a signal of alarm L2 (adjustable on the scale) when B > A
- an identical alarm's signal value for the two differences, therefore L1 = L2
- an identical hysteresis value for the two differences adjustable between 3% and 100% on the difference of pressure.
Example: we install n.2 TR 65 transducers and we want to have a signal of alarm when one of the two instruments is subjected to an inferior or superior differentia pressure of X bar and we want the alarm to re-set when the difference returns to a Y bar value.
X and Y are adjustable through the full range of the bottom scale of the switching pressure range of the transducers utilized.
The maximum preset pressure is found acting on the right red lever installed on the instrument forward to increase and reverse to decrease.
The minimum preset pressure hysteresis is found analogously on the black lever of the instrument.
The instrument, completely solid state, is totally devoid of electro- mechanical or dynamic parts.

Technical Features:
Anodized aluminum body.
Installation position: it can be mounted in any position
Working temperature: from -20°C to +80°C Switching frequency: 200 cycles/min.
Switching accuracy: 0.5 % of set pressure
Adjustable hysteresis value: between 2% and 95% of set value Weight: 0.25 kg.

Electric Features:
Power supply: 15/30 VDC
12 VDC *on request
Electrical Connection according to
DIN 43650
Electrical protection according to
DIN 40050: IP 65
Maximum contact load: 2 Amp
Medium consumption: 20 mA
Involatile memory: EEPROM

We reserve the right to make construction modifications without prior notice.