Analog Devices LT1260 Manual

Introduction

The LT1260 load cell surge protector provides protection to the weighing system from severe over voltage and high
power impulse currents.
The LT1260 contains unique triple stage surge protection circuitry to protect the signal, supply and shield lines. The first
stage comprises of gas discharge tubes. Three terminal gas discharge tubes are used providing superior differential and
common mode protection against conducted transients then surge protectors based on two terminal gas discharge tubes.
Stage two comprises of current limiting fusible series surge resistors which in a rare case of extreme lightning or surge
event will resort to a fail safe operation. This effectively disconnects the line from sensitive electronic equipment. The third
stage comprises of a low capacitance over voltage diode clamp array. The diode array clamps fast transients to a safe
level until the gas discharge tubes turn on.
The triple stage surge protector can handle higher transients then surge protectors based on voltage clamp diodes only.

1 Features


Protects the weighing system from over voltage and high power impulse currents

Protects signal, supply and shield lines

High power triple stage surge protection

Ground clamp provided on the exterior of the enclosure

Suitable for AC or DC load cell excitation voltages

IP65 Protection rating

Supports 4 or 6 wire load cells

Clear lid for easy fault finding

Shielded 6-wire connection to the load cell instrumentation

Cage clamp wire connectors

1 year limited warranty
LT1260
Load Cell Surge Protector
Manual – English 1.00