Procedure To Establish Failsafe Operation; Figure 17 - Locating The Failsafe And Write Protect Jumpers - Honeywell ST 700 User Manual

4.4.2 Procedure to Establish Failsafe Operation

The failsafe direction display accessible via the Toolkit shows only the state of the
jumper as it correlates to analog Transmitter operation. Failsafe action for the DE
control system may be configured to operate in a manner different from analog, as
indicated by the state of the Transmitter jumper.
The integrated circuits in the Transmitter PWA are vunerable to damage by stray
static discharges when removed from the Electronics Housing. Minimize the possibility of
static discharge damage when handling the PWA as follows:
Do not touch terminals, connectors, component leads, or circuits when handling the
PWA.
When removing or installing the PWA, handle it by its edges or bracket section only. If
you need to touch the PWA circuits, be sure you are grounded by staying in contact with
a grounded surface or by wearing a grounded wrist strap.
When the PWA is removed from the Transmitter, put it in an electrically conductive bag,
or wrap it in aluminum foil to protect it.
The following procedure outlines the steps for positioning the write protect and failsafe jumpers on
the electronics module. See Figure 17 for the locations of the failsafe and write protect jumpers.
Figure 17 – Locating the Failsafe and Write Protect Jumpers
Revision 2.0 ST 700 Smart Pressure Transmitter User's Manual Page 29