Exel

Series of microprocessor weighing indicators consisting of 3 products.

EXEL 708, the simplest of the range, is a microprocessor weighing indicator with four programmable thresholds, in addition to Minimum and Maximum. It can be interfaced to both load cells and encoders; the two RS232C or RS485 serial lines and the analogue outputs make it ideal for interfacing with PLC or PC.

EXEL 714, weighing indicator that manages an entire weighing cycle with maximum 8 Components; it is ideal for automating medium and large industrial weighing and dosing systems.

EXEL 721, weighing indicator that manages an entire weighing cycle with maximum 10 Components and 30 Recipes; it is ideal for automating medium and large industrial weighing and dosing systems.

Functions shared with the EXEL Series

Automatic programmed data congruency check.
Information on system conditions in real time and indication of any anomaly via error codes.
Direct piloting of the extractors makes the system autonomous for control over the entire production cycle.
RS485 multipoint hardware connection of an endless number systems with Polling software connection protocol.
Safety codes ensure programming access to authorised personnel only.
Automatic Weight Calibration to facilitate calibration operations in the field.
Diagnostic programme to facilitate maintenance procedures.
Panel Mounting (DIN 43700).

EXEL 708 Functions

Programming and controlling 4 Thresholds in addition to Minimum and Maximum.
Automatic Tare and indication of the Net Weight and Gross Weight.

EXEL 714 Functions

Programming and controlling the Minimum, Maximum and Mixing Thresholds, Zero Scale Time, Maximum Load and Unload Times, Recipe repetition number, Tolerance and Delay Time.
Two-speed dosing (bleed), with single contact with electronic timer or double contact.
Weighing with Delay compensation control in manual or automatic mode.
Possibility of carrying out manual dosing by selecting the Component for dosing from the keyboard.
Component Consumption Management.
Possibility of receiving an external pause command between Components.
Possibility of carrying out a Manual Adding through an external command.

EXEL 721 Functions

Programming and controlling the Minimum, Maximum and Mixing Thresholds, Zero Scale Time, Maximum Load and Unload Times, Recipe repetition number, Tolerance and Delay Time.
Two-speed dosing (bleed), with single contact with electronic timer or double contact.
Weighing with Delay Compensation control in manual or automatic mode.
Possibility of picking out the same Component several times within the same Recipe.
Keyboard association between Component and extractor contact.
Possibility of defining the Component dosing order.
Possibility of carrying out manual dosing by selecting the Component for dosing from the keyboard.
Possibility of performing up to 10 divided Unloads.
Consumption/Production Management of Components/Recipes.
Possibility of receiving an external pause command between Components.
Possibility of programming a Manual Adding within the Recipe.

Technical Specifications

Display		LCD 17.8mm (0.7") 6x7 segments
Keyboard		EXEL 708: 11 mechanical buttons EXEL 714: 15 mechanical buttons EXEL 721: 15 mechanical buttons
A/D Converter		24-Bit Sigma-Delta
A/D Converter Input		Differential
Load Cells Supply Voltage		±1Vdc, ±2.5Vdc, ±5Vdc (settable)
Load Cells Sensitivity		0.95 … 3.0mV/V
Load Cells Connection		Max. 8 350 ohm load cells
Display Resolution		1, 2, 5, 10
Unit of Weight		g, kg, t
Decimal Digit		0, 1, 2, 3
Power Supply		110/220Vac ±10% 50Hz
Power Consumption		Max. 30W
Inputs		EXEL 708: 4x PNP optically-isolated Inputs EXEL 714: 8x PNP optically-isolated Inputs EXEL 721: 8x PNP optically-isolated Inputs
Outputs		EXEL 708: 8x Outputs with 3A optically-isolated static relays EXEL 714: 14x Outputs with 3A optically-isolated static relays EXEL 721: 16x Outputs with 3A optically-isolated static relays
Operating Temperature		-0°C … +50°C (+32°F … +122°F)
Case		Aluminium
Degree of Protection (EN60529)		IP00
Weight		3.5kg (7.7lb)
Dimensions (L x W x H)		192x96x330mm (7.56”x3.78”x12.99”)