Mettler Toledo MT Guide de l'utilisateur télécharger pdf (Page 61)

IND780 User’s Guide

5. Press the OK softkey

to load the selected record from the list and return to

the weighing operation screen, or Press the EXIT softkey

to return without

loading the record.

Comparators

Comparators are simple targets, twenty of which can be configured in setup. They

are controlled either by coincidence or by comparison with a target or range. The

source for comparison can be the Gross Weight, Displayed Weight, Rate or

assigned by a custom TaskExpert application. When assigned to the home screen,

the Comparator softkey

permits direct access to the Comparators for the

current selected scale. As seen in Figure 2-23, this screen displays each

Comparator’s ID, Description, Limit, Units, High Limit (if applicable) and Active

operator, provided that they have been configured in setup.

To make changes to a Comparator directly from the home screen, if the

Comparator ID is known, press the ID number and then the Comparator softkey

. If the ID is not known, press the Comparator softkey , use the UP/DOWN

keys to select the desired Comparator from the list, and press the Edit softkey

Only the limit value/s can be edited. To edit parameters other than limits, the

Comparator configuration screen must be accessed in setup.

Figure 2-23: Comparators List for Scale 2

When the Active operator value is <, <=, =, < >, >= or >, the selected source is

compared to a target weight. When the Active value is within (>_ _<) or outside

(_< >_) a range, the selected source is compared to a range defined by the Limit

and High Limit values.

Using Comparators

To use a Comparator, it must be assigned to a discrete output. Comparators are

not associated with SmartTrac.

Target Value Comparators

In this case, the output will be triggered depending on the Active setting. For

example, if the Active operator is < (less than) and the Limit is 1000 kg, the

output will turn OFF when the measured value reaches 1000 kg.

2-36

1 2 ... 56 57 58 59 60 61 62 63 64 65 66 ... 128 129

Pas de commentaire

Mettler Toledo MT Guide de l'utilisateur Page 61