Rosemount XMT HART Two-Wire Contacting Conductivity Transmitter Abridged Manuals & Guides

Model Solu Comp™Xmt-C-HT

HART®SMART Two-Wire Contacting
Conductivity Transmitter

Instruction Sheet

PN 51A-Xmt-C-HT/rev.J
January 2011

ESSENTIAL INSTRUCTIONS

READ THIS PAGE BEFORE PROCEEDING!

Your purchase from Rosemount Analytical, Inc. has resulted in one of the finest instruments available for your
particular application. These instruments have been designed, and tested to meet many national and interna­tional standards. Experience indicates that its performance is directly related to the quality of the installation
and knowledge of the user in operating and maintaining the instrument. To ensure their continued operation to
the design specifications, personnel should read this manual thoroughly before proceeding with installation,
commissioning, operation, and maintenance of this instrument. If this equipment is used in a manner not speci­fied by the manufacturer, the protection provided by it against hazards may be impaired.

• Failure to follow the proper instructions may cause any one of the following situations to occur: Loss of life;
personal injury; property damage; damage to this instrument; and warranty invalidation.

• Ensure that you have received the correct model and options from your purchase order. Verify that this man­ual covers your model and options. If not, call 1-800-854-8257 or 949-757-8500 to request correct manual.

• For clarification of instructions, contact your Rosemount representative.

• Follow all warnings, cautions, and instructions marked on and supplied with the product.

• Use only qualified personnel to install, operate, update, program and maintain the product.

• Educate your personnel in the proper installation, operation, and maintenance of the product.

• Install equipment as specified in the Installation section of this manual. Follow appropriate local and national
codes. Only connect the product to electrical and pressure sources specified in this manual.

• Use only factory documented components for repair. Tampering or unauthorized substitution of parts and
procedures can affect the performance and cause unsafe operation of your process.

• All equipment doors must be closed and protective covers must be in place unless qualified personnel are
performing maintenance.

• If this equipment is used in a manner not specified by the manufacturer, the protection provided by it against
hazards may be impaired.

For additional information, please refer to the Instruction Manuals CD shipped with this
product, or visit our website at www.emersonprocess.com/raihome/liquid/.

WARNING

EXPLOSION HAZARD

DO NOT OPEN WHILE CIRCUIT IS LIVE

DO NOT RUB OR CLEAN WITH SOLVENTS

9241589-00/A

CAUTION

If a Model 375 Universal Hart® Communicator is used
with these transmitters, the software within the Model
375 may require modification.

If a software modification is required, please contact
your local Emerson Process Management Service
Group or National Response Center at 1-800-654-

7768.

MODEL Xmt-C SPECIFICATIONS

SPECIFICATIONS - GENERAL

Case: ABS. Pipe, surface, and panel mount versions are

NEMA 4X/CSA 4 (IP65).

Dimensions

Panel (code -10): 6.10 x 6.10 x 3.72 in. (155 x 155 x

94.5 mm)

Surface/Pipe (code -11): 6.23 x 6.23 x 3.23 in. (158
x 158 x 82 mm)

Conduit openings: Accepts PG13.5 or 1/2 in. conduit fit-

tings

Ambient Temperature: 32 to 122°F (0 to 50°C). Some

degradation of display above 50°C.

Storage Temperature: -4 to 158°F (-20 to 70°C)

Relative Humidity: 10 to 90% (non-condensing)

Weight/Shipping Weight: 3 lb/4 lb (1.5 kg/2.0 kg)

Display: Two line, 16-character display. Character height:

4.8 mm; first line shows process variable, second line
shows process temperature and output current. Fault
and warning messages, when triggered, alternate with
temperature and output readings.

During calibration and programming, messages,
prompts, and editable values appear on the two-line
display.

Temperature resolution: 0.1°C (≤99.9°C); 1°C (≥100°C)

RFI/EMI: EN-61326

HAZARDOUS LOCATION APPROVALS

Intrinsic Safety:

Class I, II, III, Div. 1
Groups A-G
T4 Tamb = 50°C

Class I, II, III, Div. 1
Groups A-G
T4 Tamb = 50°C

ATEX 1180

II 1 G
Baseefa04ATEX0214X
EEx ia IIC T4
Tamb = 0°C to 50°C

Non-Incendive:

Class I, Div. 2, Groups A-D
Dust Ignition Proof
Class II & III, Div. 1, Groups E-G
NEMA 4/4X Enclosure

Class I, Div. 2, Groups A-D
Dust Ignition Proof
Class II & III, Div. 1, Groups E-G
NEMA 4/4X Enclosure
T4 Tamb = 50°C

HART —

Power & Load Requirements: Supply voltage at the

transmitter terminals should be at least 12 Vdc. Power
supply voltage should cover the voltage drop on the
cable plus the external load resistor required for HART
communications (250 Ω minimum). Minimum power
supply voltage is 12 Vdc. Maximum power supply volt­age is 42.4 Vdc (30 Vdc for intrinsically safe opera­tion). The graph below shows the supply voltage
required to maintain 12 Vdc (upper line) and 30 Vdc
(lower line) at the transmitter terminals when the cur­rent is 22 mA.

Analog Output: Two-wire, 4-20 mA output with superim-

posed HART digital signal. Fully scalable over the
operating range of the sensor.

Output accuracy: ±0.05 mA

HART option

2

FUNCTIONAL SPECIFICATIONS

Automatic Temperature Compensation:

3-wire Pt 100 or Pt 1000 RTD
Conductivity: 0 to 200°C (32 to 392°F)
Resistivity: 0 to 100°C (32 to 212°F)
Low Conductivity: 0 to 100°C (32 to 212°F)

Diagnostics: The internal diagnostics can detect:

Calibration Error ROM Failure
Temperature Slope Error Zero Error
High Temperature Warning CPU Failure
Low Temperature Warning Input Warning

Once one of the above is diagnosed, the Xmt-C will dis­play a message describing the problem.

DIGITAL COMMUNICATIONS:

HART: PV, SV, and TV assignable to measurement

(conductivity, resistivity, or concentration), tempera­ture, and raw conductivity. Raw conductivity is meas­ured conductivity before temperature correction.

TRANSMITTER SPECIFICATIONS @ 25°C

Measured Range: 0-20,000 µS/cm

Accuracy: ± 0.7% of reading and ± 0.002 µS/cm

Repeatability: ± 0.25% of reading

Temperature Accuracy: ± 0.2°C between 0 and 50°C;

± 0.5°C above 50°C (excludes inaccuracies in sensor)

Temperature Compensation: Slope 0-5%/°C, ultra-pure

water, cation conductivity, or raw (uncompensated)
conductivity.

Compatible RTD: 100Ω or 1000Ω with automatic recogni-

tion

Ambient Temperature Coefficient:

± 0.05% of reading/°C

Maximum Cable Length: 200 ft (61 m)

LOOP SPECIFICATIONS

Accuracy: under controlled laboratory conditions at 25°C

(77°F) with perfectly calibrated ENDURANCE sensor of
appropriate cell constant:

Calibration: Calibrate against previously calibrated stan-

dard sensor and analyzer, or calibrate against solution
of known conductivity.

SENSOR SELECTION GUIDELINES

Note: The conductivity values shown in the above chart are for

UNCOMPENSATED (or RAW) conductivity at 25°C.
Maximum range values will vary due to temperature compen­sation selection, process temperature, and other process
conditions.

RECOMMENDED SENSORS:

Model 140 Retractable Conductivity

Model 141 Insertion High Conductivity

Model 142 Insertion Low Conductivity

Model 150 Insertion/Submersion Conductivity

Model 400 Screw-In Low Conductivity

Model 400VP Screw-In Low Conductivity

Model 401 Screw-In High Conductivity

Model 402 Retractable Conductivity

Model 402VP Retractable Conductivity

Model 403 Sanitary Conductivity

Model 403VP Sanitary Conductivity

Model 404 Low Flow Conductivity

Specifications subject to change without notice.

3

MODEL Xmt-C SPECIFICATIONS

Cell Constant Suggested Conductivity Range

0.01/cm up to 50 µS/cm

0.1/cm 0.4 to 500 µS/cm

1.0/cm 4 to 20,000 µS/cm

Cell Constant Range Loop accuracy

0.01/cm up to 50 µS/cm ±0.7% of reading
±0.002 µS/cm

0.1/cm 0.4 to 50 µS/cm ±0.7% of reading
50 to 200 µS/cm ±2% of reading

1.0/cm 4 to 5000 µS/cm ±0.7% of reading

5000 to 20,000 µS/cm ±2% of reading

4

QUICK START GUIDE

FOR MODEL SOLU COMP Xmt-C-HT TRANSMITTER

5. Choose the desired language. Choose >> to show more choices.

6. Choose measurement: Conductivity, Resistivity, Total Dissoved Solids, or
Custom.

7. Enter the cell constant. See label attached to sensor.

8. Choose temperature units: °C or °F.

9. If you selected Custom, you must enter the appropriate conductivity and con­centration data points. From the main display, press MENU. Choose Program fol-
lowed by Measurement and Custom. The screen shown at left appears. Select
Enter Data Pts. Follow the prompts and enter the display units, the number of
data points, and enter the concentration and conductivity data points. Enter the
reference temperature and the temperature coefficient (slope). Once the analyz­er has been configured, press EXIT. For a guide to the program menu, see the
menu tree on page 16.

10. To change output settings, to scale the 4-20 mA output, to change measurement­related settings from the default values, and to set security codes, press MENU.
Select Program and follow the prompts. Refer to the menu tree on page 16.

11. To return the transmitter to default settings, choose ResetAnalyzer in the
Program menu.

Enter Data Pts

Ref Temp Slope

Cell Constant?

1.0000/cm

Temperature in?

° C ° F

Concentration

Units?

% ppm none

1. Refer to page 5 for installation instructions.

2. Wire conductivity sensor to the transmitter. Refer to the sensor instruction sheet for details.

3. Once connections are secure and verified, apply DC power to the transmitter.

4. When the transmitter is powered up for the first time, Quick Start screens appear. Using Quick Start is easy.

a. A blinking field shows the position of the cursor.

b. Use the t or u key to move the cursor left or right. Use the p or q key to move the cursor up or down or to

increase or decrease the value of a digit. Use the p or q key to move the decimal point.

c. Press ENTER to store a setting. Press EXIT to leave without storing changes. Pressing EXIT also returns the

display to the previous screen.

&

If there is no cell constant on the label, calculate it
from the equation:

cell const = K

500 + cal const

1000

e

j

Measure?

Cond

Resistivity >>

Measure?

TDS Custom >>

English

Français

Español >>

MODEL Xmt-C INSTALLATION

5

UNPACKING AND INSPECTION

Inspect the shipping container. If it is damaged, contact the shipper immediately for instructions. Save the box. If there is
no apparent damage, unpack the container. Be sure all items shown on the packing list are present. If items are missing,
notify Emerson Process Management immediately.

INSTALLATION

1. Although the transmitter is suitable for outdoor use, do not install it in direct sunlight or in areas of extreme tempera­tures.

2. Install the transmitter in an area where vibrations and electromagnetic and radio frequency interference are minimized
or absent.

3. Keep the transmitter and sensor wiring at least one foot from high voltage conductors. Be sure there is easy access
to the transmitter.

4. The transmitter is suitable for panel (Figure 1), pipe (Figure 2), or surface (Figure 3) mounting.

5. The transmitter case has two 1/2-inch (PG13.5) conduit openings and either one or four 1/2-inch knockouts. The panel
mount Xmt-C-HT has four knockouts. The pipe/surface mount transmitter has one knockout. One conduit opening is
for the power/output cable; the other opening is for the sensor cable. The knockout should be removed only if a sec­ond sensor is required, i.e., if free chlorine with continuous pH correction is being measured.

6. Use weathertight cable glands to keep moisture out to the transmitter. If conduit is used, plug and seal the connections
at the transmitter housing to prevent moisture from getting inside the instrument.

7. To reduce the likelihood of stress on wiring connections, do not remove the hinged front panel (-11 models) from the
base during wiring installation. Allow sufficient wire leads to avoid stress on conductors.

NOTE: Use Stiffner 32939-00 provided in Kit 24062-00 to electrically bond enclosure to Earth Ground.

Removing the Knockouts

The figure to the right shows how to remove the knockouts. The
knockout grooves are on the outside of the case. Place the screw­driver blade on the inside of the case and align it approximately
along the groove. Rap the screwdriver sharply with a hammer
until the groove cracks. Move the screwdriver to an uncracked
portion of the groove and continue the process until the knockout
falls out. Use a small knife blade to remove the flash from the
inside of the hole.