Series 651T/652T/653T Isolator User’s Manual Process Current Two-Wire Transmitters
___________________________________________________________________________________________
- 2 -
Safety Summary - Symbols on equipment:
Means “Caution, refer to this manual for additional
information”.
The information contained in this manual is subject to change
without notice. Acromag, Inc., makes no warranty of any kind
with regard to this material, including, but not limited to, the
implied warranties of merchantability and fitness for a particular
purpose. Further, Acromag, Inc., assumes no responsibility for
any errors that may appear in this manual and makes no
commitment to update, or keep current, the information contained
in this manual. No part of this manual may be copied or
reproduced in any form, without the prior written consent of
Acromag, Inc.
Table of Contents
Page
1.0 INTRODUCTION
………………………………..…….. 2
DESCRIPTION …………………………………………
2
Key 65xT Features……………..……………………
2
2.0 PREPARATION FOR USE
….……………………….. 3
UNPACKING AND INSPECTION ……………………
3
INSTALLATION ………………………………………..
3
Mounting ………………………………………………
3
Electrical Connections ………………………………
3
3.0 CALIBRATION
…………………………………………. 4
TRANSMITTER ADJUSTMENT PROCEDURE…….
4
4.0 THEORY OF OPERATION
…………………………..
4
5.0 SERVICE AND REPAIR
………………………………
5
SERVICE AND REPAIR ASSISTANCE …………….
5
PRELIMINARY SERVICE PROCEDURE ..………….
5
6.0 SPECIFICATIONS
…………………………………….
5
MODEL NUMBER DEFINITION………………………
5
INPUT SPECIFICATIONS …………………………….
5
OUTPUT SPECIFICATIONS …………………………
5
ENCLOSURE/PHYSICAL SPECIFICATIONS..……..
6
APPROVALS ………………………………………….. 6
ENVIRONMENTAL SPECIFICATIONS ……………..
6
List of Drawings
Page
Simplified Schematic (4501-726)……..………………...… 7
Electrical Connections (4501-727, Figure A)…...…..…... 8
Electrical Connections (4501-727, Figure B)..….…..…... 9
Enclosure Dimensions (4501-728).…………………..……
10
IMPORTANT SAFETY CONSIDERATIONS
It is very important for the user to consider the possible adverse
effects of power, wiring, component, sensor, or software failures
in designing any type of control or monitoring system. This is
especially important where economic property loss or human life
is involved. It is important that the user employ satisfactory
overall system design. It is agreed between the Buyer and
Acromag, that this is the Buyer's responsibility.
1.0 INTRODUCTION
These instructions cover hardware functionality of the isolator
models listed in Table 1. Supplementary sheets are attached for
units with special options or features.
Table 1: Models Covered in This Manual
Series/Input/Type
-Options/Output/Enclosure/Approvals
1
651T
3
-0600
652T
3
-0600
653T
3
-0600
Notes (Table 1):
1. Approvals: CE marked, UL and cUL listed.
Hazardous Locations: Class 1; Division 2; Groups A, B, C, D.
(See specifications).
2. The unit is calibrated from the factory for 4-20mA I/O only.
3. Model 651T units have one I/O channel, while 652T units
provide two I/O channels. Model 653T units combine a
single input and two 2-wire outputs to form a signal splitter.
DESCRIPTION
Series 65xT Isolators are members of Acromag’s vast line of
isolators, alarms, and transmitters. These models are simple,
low-cost, isolated, two-wire transmitters for process current input
signals, in single (651T), and dual (652T) channel configurations.
Model 653T units combine a single input with dual isolated 2-wire
outputs to form a signal splitter. Zero and span trim adjustments
utilize 15-turn potentiometers accessible from the front of the unit.
Each channel also includes an LED loop power indicator. These
isolators are DIN-rail mounted with removable plug-in type
terminal blocks to facilitate ease of installation and replacement,
without having to remove wiring. Connectors are an industry
standard screw clamp type and accept a wide range of wire sizes.
All 65xT isolator modules are designed to withstand harsh
industrial environments. They feature RFI, EMI, ESD, EFT, and
surge protection, plus low temperature drift, wide ambient
temperature operation, and isolation from input-to-output and
channel-to-channel. They also have low radiated emissions per
CE requirements. The safe, compact, rugged, and reliable
design of these isolators makes them an ideal choice for control
room or field applications.
Key 65xT Features
•
Fully Isolated
- Galvanic isolation is provided from input to
output and includes isolation between channels for safety
and increased noise immunity.
•
Very Low Input Burden
- The input voltage drop of this
device is typically less than 1.5V (651T/652T), or 3V (653T).
•
Convenient Two-Wire Loop Power
- The output signal and
power share the same two-wire connections. Each channel
includes an LED to indicate loop power.
•
Output Current Sense Resistor
- Each output channel
includes a precision, series-connected, 10
Ω
resistor that
may be used to monitor the output loop current via a DVM,
without breaking the loop.
•
Wide Ambient Operation
- The unit is designed for reliable
operation over a wide ambient temperature range.
!
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com