User Guide

7. Optional 4/20mA output

All BEKA Rate Totalisers can be supplied with a factory

ttedgalvanicallyisolated4/20mAcurrentsinkoutputwhich

can be used for retransmission to other instrumentation.

This output appears as a 4/20mA loop powered transmitter

requiring an external power supply between 5 and 28V.

Theoutputcanbeconguredtorepresentanypartofthe

instrument’s rate or total display.

To prevent a misleading or dangerous current output

afteranychangestotheRateTotaliserconguration,the

4/20mA output must be manually re-enabled before it will

function.

8. Optional dual Alarm outputs

All BEKA Rate Totalisers can be supplied with factory

tteddualalarms.Eachalarmhasagalvanicallyisolated,

solid state single pole, voltage free output that may be

independently congured as a high or low, rate or total

alarm with a normally open or normally closed output.

Congurablefunctionsforeachalarmincludethesetpoint,

alarm delay and silence time. Hysteresis may be applied

to rate alarms.

When the Rate Totaliser’s power supply is turned off

or disconnected, alarm outputs will open irrespective

of whether normally open or normally closed outputs

have been selected. When designing a system it is

recommended that an open output should be selected for

the alarm condition.

Alarm annunciators on the instrument display indicate the

status of each alarm. If an alarm delay or silence time has

beenselectedtheannunciatorwillashduringthedelay

or silence period.

9. Slide-in scale card

All Rate Totaliser’s, except the ‘E’ sufx eld mounting

models, have a slide-in scale card which can be printed

to show the instruments units of measurement. The scale

cardismountedonaexiblestripthatisinsertedintoaslot

at the rear of panel mounting Rate Totalisers and adjacent

totheterminalsoneldmountinginstruments.

New Rate Totalisers can be supplied with a printed scale

card showing requested units of measurement for no

additional charge. If this information is not supplied when

theinstrumentisorderedablankcardwillbettedwhich

can easily be marked on-site.

Inserting scale card in panel Rate Totaliser