Rosemount Manual Supplement: Rosemount 244EH and 244ER PC Programmable Temperature Transmitters Manuals & Guides

Manual Supplement

Product Discontinued

00809-0200-4737, Rev CA
December 2002

Models 244EH and 244ER

Models 244EH and 244ER PC Programmable
Temperature Transmitters

Standard Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . page S-1

Alarm Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page S-1

Attaching the Head Mount Transmitter . . . . . . . . . . . . . . . page S-2

Model 244EC Configuration Software Upgrade . . . . . . . . page S-2

STANDARD
CONFIGURATION

ALARM LEVELS

Unless otherwise specified, the transmitter is shipped with the following
configuration:

Sensor Type: RTD, Pt 100, a = 0.00385
Number of Wires: 4
4 mA Value: 0 °C (32 °F)
20 mA Value: 100 °C (212 °F)
Damping: 5 seconds
Failure Mode: High/Upscale
Output: Linear with Temperature
Line Voltage Filter: 50 Hz
Software Tag: Blank

Death or serious injury could result if the alarm levels of the Model 244EH or 244ER
transmitter are not compatible with the alarm monitoring and detection systems.

Before installing the Model 244EH or 244ER transmitter in a control loop, verify that the
upscale (high) and downscale (low) alarm levels are compatible with the alarm monitoring
and detection system

Note of the following alarm levels before installing the Models 244EH or
244ER.

Table S-1. Standard vs.
NAMUR-compliant specifications

Linear Output: 3.9 ≤ I ≤ 20.5 3.8 ≤ I ≤ 20.5
Fail High: 21 ≤ I ≤ 23 (default) 21 ≤ I ≤ 23 (default)
Fail Low: I ≤ 3.75 I ≤ 3.6

(1) Measured in milliamperes

www.rosemount.com

Standard

(1)

NAMUR- Compliant

(1)

Manual Supplement

00809-0200-4737, Rev CA

Models 244EH and 244ER

December 2002

ATTACHING THE HEAD
MOUNT TRANSMITTER

Integral Mount Sensor These sensors are available through the Temperature Sensors and

Accessories (Volume 2) Product Data Sheet (document number
00813-0200-2654).

To attach the transmitter to a integral mount sensor, use M2.5 ⫻ 4.0 mm-long
flat head screws. Do not overtighten the screws.

Wall Panel or Other
Integral Mount Sensor

To determine the correct screw length for
attaching the transmitter to a wall panel or an
integral mount sensor from a supplier other
than Emerson Process Management, insert a

4.0 mm-long screw through the sensor plate
and measure the distance that the screw
extends from the plate surface (Length A in
the diagram below).

If A ≥ 2.5 mm, use 4.0-mm long flat head
screws. If A < 2.5 mm, use 5.0 mm-long flat
head screws. Do not overtighten the screws.

Model 244EH

Transmitter

Length A

Sensor

(2) M2.5

Flat Head

Screw

MODEL 244EC
CONFIGURATION
SOFTWARE UPGRADE

The Model 244EC Configuration Software is compatible with Microsoft®
Windows

®

95, 98, NT, and 2000.

The most recent version of the Model 244EC Configuration Software is
v.04.00.000. Visit the following website to download the free software revision
upgrade. The upgrade instructions are provided on the page that contains the
upgrade files.

http://www.rosemount.com/products/temperature/m244cfg.html

Or, perform the following steps to download the free software revision
upgrade:

1. Go to http://www.rosemount.com

2. Click on “Products.”

3. Click on “Temperature.”

4. Click on “Model 244EH and 244ER Programmable Temperature
Transmi t t ers.”

5. Scroll to the bottom of the page and click “Upgrade to v.04.00.000,”
located under “Model 244EC Configuration Software Tool.”

Rosemount and the Rosemount logotype are registered trademarks of Rosemount Inc.
Microsoft and Windows are registered trademarks of Microsoft Inc.
All other marks are the property of their respective owners.

Emerson Process Management

Rosemount Inc.

8200 Market Boulevard
Chanhassen, MN 55317 USA
T (U.S.) 1-800-999-9307
T (International) [phone]
F [phone]

www.rosemount.com

Rosemount Temperature GmbH

Frankenstrasse 21
63791 Karlstein
Germany
T 49 (6188) 992 0
F 49 (6188) 992 112

Emerson Process Management Asia
Pacific Private Limited

1 Pandan Crescent
Singapore 128461
T (65) 777 8211
F (65) 777 0947
[e-mail]

¢00809-0200-4737n¤

© 2002 Rosemount Inc. All rights reserved.