Section 8 - Repair And Replacement Procedures; Introduction; Component Removal And Installation Procedures - ABB Platinum standard Series Product Instruction

SECTION 8 - REPAIR AND REPLACEMENT PROCEDURES

INTRODUCTION

WARNING

COMPONENT REMOVAL AND INSTALLATION PROCEDURES

CAUTION
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Explosionproof/dust-ignitionproof installations and intrinsi-
cally safe installations in Class II or Class III hazardous loca-
tions require that the assembly be kept tight while circuits are
live unless the location is known to be nonhazardous at the
time.
Repairs must be performed only by qualified personnel and
only after securing equipment controlled by the circuit. Alter-
ing or removing components from an active circuit may upset
the process being controlled.
This section contains procedures for replacement of transmit-
ter components in the field.
The design of the Type PTSD pressure transmitter allows
replacement of components in as little as five minutes. All cali-
bration and configuration data are stored on both the amplifier
assembly and characterization board.
Replacement of the amplifier assembly requires no configura-
tion, as the characterization board automatically downloads
this information into the amplifier assembly. Replacement cell
and characterization board assemblies come with the standard
factory configuration (Table 1-8) and that data transfers to the
original amplifier assembly. If a configuration other than the
standard is required, the transmitter must go through either a
step-by-step configuration or must have a configuration down-
loaded from the Type STT terminal as described in
In either case, calibrate the transmitter according to the proce-
dures in Section 4.
If the cell and characterization board assembly has been
cleaned for oxygen and chlorine service, do not compromise
the integrity of this cleaning during these procedures. Impuri-
ties will react with oxygen and chlorine and damage the trans-
mitter and the process.
Use Figures 8-1, 8-2, and
these procedures.
All procedures assume replacement of the O-rings whenever a
component sealed by the O-ring is removed.
8-3 as visual aids when performing
INTRODUCTION
Section 5.
8 - 1