3.4.6. Lightning Protector
The lightning protection device is designed to give the STT700 temperature transmitter maximum
protection against surges such as those generated by lightning strikes. It mounts on the top of the
STT700 transmitter module, providing easy field wiring and also protection for the EU meter if used.
The compact mounting allows the use of a variety of housings including the Honeywell explosion
proof field mount housing.
The device can be used in both intrinsic safety and flame/explosion proof applications.
Figure 14 – STT700 with Lightning Protector Dimensions
STT700 Temperature Transmitter User's Manual
Revision 2
Page 21