Omega SMCJ-K, SMCJ-J, SMCJ-T User Manual

Super MCJ

SMCJ-J, SMCJ-K, SMCJ-T

INSTRUCTION

SHEET

M2813-0103

Thermocouple-to-Analog Connector

This is a Thermocouple to Analog Connector.
It converts a thermocouple input signal (Type
J, K, or T) to a linear, compensated, amplified
analog output. The unit provides 1mV/°F or
1mV/°C analog output. The analog output
can go to a strip chart recorder or a digital
voltmeter for temperature monitoring.

The unit is powered by a single AA size
lithium battery. In order to install the battery,
remove the back cover and place the battery
on the PC board. The battery polarity is
indicated on the PC board. If the battery is
installed reverse, the unit will not power up.
The back cover is mounted to the front cover
via two mounting holes.

The input connection can be SMP or OST
type connections. The output connection is
standard banana plug or jack. The plastic
case and the rubber gasket Bumper Band

®

provides a rugged and sealed connector
design. Figure 1 provides a functional flow
chart of how the unit operates. This unit is
operated using a single tactile feedback
button .

There are 3 LEDs built into the connector.
The °C green LED flashes once every 2
seconds when the output provides 1mV/°C.
The °F green LED flashes once every 2
seconds when the output provides 1mV/°F. If
the input is open the °C and °F green LEDs

both flash alternately once a second.
When the battery voltage drops below a

certain level, a red LED starts to flash once a
second. This is a low battery indication. The
battery must be replaced with a fresh battery
immediately.

Field Adjustments

The unit is field adjustable by removing the
back cover and accessing the three
potentiometers. R17 provides offset
adjustment when the unit is in mV/°F mode.
R42 provides offset adjustment when the unit
is in mV/°C mode. R32 provides span (gain)
adjustment either in mV/°F or mV/°C mode.

Press

SPECIFICATIONS

Measuring Temperature Range:

Type J: -100 to +750°C (-148 to +1382°F)
Type K: -100 to +1250°C (-148 to +2282°F)
Type T: -100 to +350°C (-148 to +662°F)

Accuracy @ 75°F ambient
temperature across the range:

Type J: ±1.4°C (± 2.5°F)
Type K: ±3°C (± 5°F)
Type T: ±2°C (±3°F)

Input Connection: SMP or OST connector
Input Impedance: 3M-ohms
Output Connection: Standard Banana

Plug or Jack

Thermocouple Break Protection:

Output goes Upscale (std.)
°F & °C Green LEDs flash once a second

Output: 1mV/°F or 1mV/°C, °F or °C Green
LEDs flash once every 2 seconds

Output Load: 1K-Ohms min.
Power: One AA size Lithium Battery, 3.4 to

3.6 VDC 1900 mAH

Battery Life @ 75°F Ambient Temperature:

1440 hours (60 Days), continuous, no load

Low Battery Indication:

Red LED flashes once a second,

Response Time:

(0 to 63% of Final value): 150 msec

Operating Temperature:

0 to 50°C (32 to 122°F)
Thermal Zero Drift: 0.05 mV/°C

(0.05 mV/°F) ambient temperature change
Operating Relative Humidity: 95% or

less, without condensation

Dimensions:

4"L x 2"W x 1"H (10L x 5W x 2.5H cm)
Weight: 2.4 oz (67g)

Press

Press

1mV/°C Mode

1 sec Delay

1mV/°F Mode

Input

Open

Input
Open

Output Upscale/Downscale

Output Upscale/Downscale

Figure 1, Functional Flow Chart

°C

°F

°C
°F

°C

°F

°C
°F

YES

YES

NO

NO

1mV/°C Output

1mV/°F Output

Start
Sleep
Mode

Press

+

–

Analog
Output,
1 mV per
degree

Thermo­couple
Input

(SMP or OST
Connectors)

®

°C
°F

OFF

Press

Super MCJ

K

Output

Low
Batt

Thermocouple to
Analog connector

Model No. Description

OM-NOMAD-BATT Replacement Battery
SMCJ-CAB Cable Wire (Red & Black) 36" Long

Accessories

GENERAL DESCRIPTION

Follow all the safety precautions and

operating instructions outlined in the manual.

The installation category is one (1).
There are no user replaceable fuse in

this product.

Maximum input voltage to earth: 30

Vrms (42.4 peak) or 60 Vdc.

Avoid contact with hazardous live parts.
The thermocouple probe should not be
connected to hazardous live voltages (less than
max. input voltage to earth).

The output terminals of this product are

for use with equipment (digital multimeter,
chart recorder, etc.) which have no accessible
live parts. Such equipment should comply with
all the applicable safety requirements.

Do not open batteries, dispose of in fire,
heat above 100°C (212°F), expose contents to
water, recharge, put in backwards, mix with
used or other battery types. It may cause
explosion, leakage or personal injury.

Use cloth damped with warm water and
soap to clean the outside case and label. Do
not use flammable liquid solutions for cleaning.
Do not immerse the product in water.

OTHER IMPORTANT CONSIDERATIONS BEFORE OPERATION

CAUTION

Shop online at: omega.com e-mail: [e-mail]
For latest product manuals: omegamanual.info

It is the policy of OMEGA Engineering, Inc. to comply with all worldwide safety and EMC/EMI regulations that apply. OMEGA is constantly pursuing certification of its
products to the European New Approach Directives. OMEGA will add the CE mark to every appropriate device upon certification.

The information contained in this document is believed to be correct, but OMEGA accepts no liability for any errors it contains, and reserves the right to alter specifications without notice.
WARNING: These products are not designed for use in, and should not be used for, human applications.

WARRANTY/DISCLAIMER

OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a period of 13 months from date of purchase.
OMEGA’s WARRANTY adds an additional one (1) month grace period to the normal one (1) year product warranty to cover handling and
shipping time. This ensures that OMEGA’s customers receive maximum coverage on each product.

If the unit malfunctions, it must be returned to the factory for evaluation. OMEGA’s Customer Service Department will issue an Authorized Return (AR)
number immediately upon phone or written request. Upon examination by OMEGA, if the unit is found to be defective, it will be repaired or replaced
at no charge. OMEGA’s WARRANTY does not apply to defects resulting from any action of the purchaser, including but not limited to mishandling,
improper interfacing, operation outside of design limits, improper repair, or unauthorized modification. This WARRANTY is VOID if the unit shows
evidence of having been tampered with or shows evidence of having been damaged as a result of excessive corrosion; or current, heat, moisture or
vibration; improper specification; misapplication; misuse or other operating conditions outside of OMEGA’s control. Components in which wear is not
warranted, include but are not limited to contact points, fuses, and triacs.

OMEGA is pleased to offer suggestions on the use of its various products. However, OMEGA neither assumes responsibility for any
omissions or errors nor assumes liability for any damages that result from the use of its products in accordance with information provided
by OMEGA, either verbal or written. OMEGA warrants only that the parts manufactured by the company will be as specified and free of
defects. OMEGA MAKES NO OTHER WARRANTIES OR REPRESENTATIONS OF ANY KIND WHATSOEVER, EXPRESSED OR IMPLIED, EXCEPT
THAT OF TITLE, AND ALL IMPLIED WARRANTIES INCLUDING ANY WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE ARE HEREBY DISCLAIMED. LIMITATION OF LIABILITY: The remedies of purchaser set forth herein are exclusive, and the total
liability of OMEGA with respect to this order, whether based on contract, warranty, negligence, indemnification, strict liability or otherwise,
shall not exceed the purchase price of the component upon which liability is based. In no event shall OMEGA be liable for consequential,
incidental or special damages.

CONDITIONS: Equipment sold by OMEGA is not intended to be used, nor shall it be used: (1) as a “Basic Component” under 10 CFR 21 (NRC), used in
or with any nuclear installation or activity; or (2) in medical applications or used on humans. Should any Product(s) be used in or with any nuclear
installation or activity, medical application, used on humans, or misused in any way, OMEGA assumes no responsibility as set forth in our basic
WARRANTY/ DISCLAIMER language, and, additionally, purchaser will indemnify OMEGA and hold OMEGA harmless from any liability or damage
whatsoever arising out of the use of the Product(s) in such a manner.

Servicing North America:

U.S.A.: One Omega Drive, Box 4047

ISO 9001 Certified Stamford, CT 06907-0047

Tel: [phone] FAX: [phone]
e-mail: [e-mail]

Canada: 976 Bergar

Laval (Quebec) H7L 5A1, Canada
Tel: [phone] FAX: [phone]
e-mail: [e-mail]

For immediate technical or application assistance:

U.S.A. and Canada: Sales Service: 1-800-826-6342/1-800-TC-OMEGA

®

Customer Service: 1-800-622-2378/1-800-622-BEST

®

Engineering Service: 1-800-872-9436/1-800-USA-WHEN

®

Mexico: En Espan˜ol: [phone]-7803 e-mail:[e-mail]

FAX: [phone] [e-mail]

OMEGAnet®Online Service Internet e-mail

omega.com [e-mail]

Servicing Europe:

Czech Republic: Frystatska 184, 733 01 Karviná, Czech Republic

Tel: [phone]
FAX: [phone]
Toll Free: 0800-1-66342
e-mail: [e-mail]

Germany/Austria: Daimlerstrasse 26, D-75392 Deckenpfronn, Germany

Tel: [phone]
FAX: [phone]
Toll Free in Germany: 0800 639 7678
e-mail: [e-mail]

United Kingdom: One Omega Drive, River Bend Technology Centre

ISO 9002 Certified Northbank, Irlam, Manchester

M44 5BD United Kingdom
Tel: [phone]
FAX: [phone]
Toll Free in United Kingdom: 0800-488-488
e-mail: [e-mail]

RETURN REQUESTS / INQUIRIES

Direct all warranty and repair requests/inquiries to the OMEGA Customer Service Department. BEFORE RETURNING ANY PRODUCT(S) TO
OMEGA, PURCHASER MUST OBTAIN AN AUTHORIZED RETURN (AR) NUMBER FROM OMEGA’S CUSTOMER SERVICE DEPARTMENT (IN ORDER
TO AVOID PROCESSING DELAYS). The assigned AR number should then be marked on the outside of the return package and on any
correspondence.

The purchaser is responsible for shipping charges, freight, insurance and proper packaging to prevent breakage in transit.

FOR W

ARRANTY RETURNS, please have the following information

available BEFORE contacting OMEGA:

1. Purchase Order number under which the product was PURCHASED,

2. Model and serial number of the product under warranty, and

3. Repair instructions and/or specific problems relative to the product.

FOR NON-WARRANTY REPAIRS,

consult OMEGA for current repair charges.

Have the following information available BEFORE contacting OMEGA:

1. Purchase Order number to cover the COST of the repair,

2. Model and serial number of the product, and

3. Repair instructions and/or specific problems relative to the product.

OMEGA’s policy is to make running changes, not model changes, whenever an improvement is possible. This affords our customers the latest in technology and
engineering.

OMEGA is a registered trademark of OMEGA ENGINEERING, INC.
© Copyright 2006 OMEGA ENGINEERING, INC. All rights reserved. This document may not be copied, photocopied, reproduced, translated, or reduced to any electronic

medium or machine-readable form, in whole or in part, without the prior written consent of OMEGA ENGINEERING, INC.