Instruction manual

1
MODEL XMT-C SECTION 1.0
DESCRIPTION AND SPECIFICATIONS
SECTION 1.0
DESCRIPTION AND SPECIFICATIONS
Model Xmt™ Family of Two-wire Transmitters
• CHOICE OF COMMUNICATION PROTOCOLS:
HART
®
or FOUNDATION
®
Fieldbus
• CLEAR, EASY-TO-READ two-line display shows commissioning
menus and process measurement displays in English.
• SIMPLE TO USE MENU STRUCTURE.
• MEASURES CONDUCTIVITY, RESISTIVITY, TOTAL DISSOLVED
SOLIDS, OR CUSTOM CURVE VARIABLE.
• AUTOMATIC TEMPERATURE SENSOR RECOGNITION simplifies
start up.
• AUTOMATIC COMPENSATION FOR SENSOR CABLE RESISTANCE improves accuracy
of high conductivity/ low resistivity measurements.*
• TEMPERATURE COMPENSATION ALGORITHMS include percent slope, ultra-pure water,
cation conductivity, and no compensation.
*Patent pending
1.1 FEATURES AND APPLICATIONS
The Solu Comp Model Xmt family of transmitters can
be used to measure pH, ORP, conductivity (using
either contacting or toroidal sensors), resistivity, oxy-
gen (ppm and ppb level), free chlorine, total chlorine,
monochloramine and ozone in a variety of process liq-
uids. The Xmt is compatible with most Rosemount
Analytical sensors. See the Specification sections for
details.
The transmitter has a rugged, weatherproof, corrosion-
resistant enclosure (NEMA 4X and IP65). The panel
mount version fits standard ½ DIN panel cutouts, and
its shallow depth is ideally suited for easy mounting in
cabinet-type enclosures. A panel mount gasket is
included to maintain the weather rating of the panel.
Surface/pipe mount enclosure includes self-tapping
screws for surface mounting. A pipe mounting acces-
sory kit is available for mounting to a 2-inch pipe.
The transmitter has a two-line 16-character display.
Menu screens for calibrating and registering choices
are simple and intuitive. Plain language prompts guide
the user through the procedures. There are no service
codes to enter before gaining access to menus.
Two digital communication protocols are available:
HART (model option -HT) and F
OUNDATION fieldbus
(model option -FF). Digital communications allow
access to AMS (Asset Management Solutions). Use
AMS to set up and configure the transmitter, read
process variables, and troubleshoot problems from a
personal computer or host anywhere in the plant.
The seven-button membrane-type keypad allows local
programming and calibrating of the transmitter. The
HART Model 375 communicator can also be used for
programming and calibrating the transmitter.
The Model XMT-C Transmitter measures conductivity,
resistivity, total dissolved solids, or % concentration. It
can also be configured, using the "Custom Curve" fea-
ture, to measure ppm, %, or a no unit variable accord-
ing to a programmable conductivity vs. variable curve.
The transmitter automatically recognizes the type of
RTD (Pt100 or Pt1000) being used. Measurements are
automatically corrected for the resistance of the sensor
cable to improve accuracy of high conductivity read-
ings. The Xmt-C provides several temperature com-
pensation algorithms: linear slope, ultra-pure water
(neutral salt), or cation conductivity. Alternatively, tem-
perature compensation feature can be turned off to
provide display of raw conductivity.