LT1270 DIN Rail Mount Load Cell Indicator

LT1270A

LT1270B

Introduction

The LT1270 DIN rail mount load cell indicator is a precision digital indicator for load cell and strain gauge applications.

The high bright 6-digit 14 segment LED displays make for easy setup and readability. A simple menu system with built in help hints allows for easy configuration of display and load cell settings. The load cell calibration is easily accomplished using known weights.

A universal mains switch mode power supply (85-264VAC) is provided as standard but an optional low voltage (10-30VDC) isolated power supply or a high voltage (25-70VDC) isolated power supply can be installed.
The LT1270 contains precision front end circuitry for high accuracy and stability.

The ratiometric ADC circuitry automatically compensates for temperature drift and excitation voltage variances due to cable loss. The load cell excitation voltage is 5VDC and can interface with both 4 wire and 6 wire load cells. The LT1270 can power up to 6×350Ω load cells. RS232 and RS485 communications is supplied as standard with the MODBUS™ RTU and MODBUS™ ASCII protocols. A simple ASCII out protocol is also provided for serial printing and communicating to large displays. The LT1270 also contains 2 programmable mechanical relays and analog retransmission for generating a precise 0/4-20mA or 0-10V analog output signal.

The LT1270/1 also includes advanced features such as auto-zero tracking, user input linearisation, max/min recording, programmable front push buttons, 2x programmable digital inputs, security menu lockout, motion indication, advanced digital filtering, automatic offset calibration plus many more to provide a all in one precision load cell indicator.

 

Features

  • - High bright 6-digit 14 segment LED displays for easy setup and calibration
  • - 4 or 6 wire load cell / strain gauge input
  • - Can power up to 6×350Ω load cells at +5VDC excitation voltage
  • - High precision 24 bit ratiometric ADC front end circuitry
  • - -199999 to +999999 display counts
  • - DIN Rail mount ABS enclosure
  • - Easy calibration using known weights
  • - 16 Bit Analog output (0/4-20mA or 0-10V)
  • - 2x Mechanical setpoints
  • - RS232 communications (MODBUS™ RTU/ASCII and an Infiniteq ASCII out protocol)
  • - RS485 communications (MODBUS™ RTU/ASCII and an Infiniteq ASCII out protocol)
  • - 2x Programmable digital inputs (pull up or pull down field jumper selectable)
  • - 3x Programmable front panel push buttons
  • - Universal mains switch mode power supply (85-264VAC) standard with built in EMI and fuse protection
  • - 16 Point lineariser
  • - Auto-zero tracking function
  • - Automatic offset calibration
  • - Tare function
  • - Gross/Net function
  • - Selectable/adjustable advanced digital filtering
  • - 2 Alarm, Motion indication and Net front panel LED status
  • - Max/Min recording
  • - Security menu lockout
  • - Built in menu help hints
  • - Field upgradable firmware via the RS232 interface
  • - 1 Year Warranty
  • - Optional hardware includes:
  • - Low voltage 10-30VDC Isolated power supply
  • - High voltage 25-70VDC Isolated power supply

 

Specifications

LT1270C

LT1270D

Front Panel Layout, Wiring and Dimensions

LT1270E

Wiring

LT1270F

Dimensions

LT1270G

Order Information

Add option codes to suffix of model number separated by hyphens.

Example:
(LT1270 DIN Rail weighing indicator with 10-30Vdc power supply)
LT1270-700

Option part numbers:

  • - 700 – Low voltage 10-30VDC isolated power supply
  • - 701 – High voltage 25-70VDC isolated power supply
  • - 760 – Display engineering units
  • - 762 – 115VAC Inductive load suppressor
  • - 763 – 230VAC Inductive load suppressor
  • - 764 – 2A Slow blow replacement fuse
  • - 765 – R-C Snubber noise and arc suppressor
  • - 766 – Transparent protective front cover
  • - LT1270 DIN Rail Mount Load Cell Indicator Page 8

 

Notice

Specifications of the products displayed herein are subject to change without notice. Infiniteq cc, or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies. Information contained herein is intended to provide a product description only. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Infiniteq’s terms and conditions of sale for such products, Infiniteq assumes no liability whatsoever, and disclaims any express or implied warranty, relating to sale and/or use of Infiniteq products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications. Customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Infiniteq for any damages resulting from such improper use or sale.

 

Warranty

This product carries a warranty for a period of one year from date of purchase against faulty workmanship or defective materials, provided there is no evidence that the unit has been mishandled or misused. Warranty is limited to the
replacement of faulty components and includes the cost of labor. Shipping costs are for the account of the purchaser.

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Note: Product warranty excludes damages caused by unprotected, unsuitable or incorrectly wired electrical supplies and or sensors, and damage caused by inductive loads.