Apollo Intelligent Meter Series IMY Uživatelský manuál stáhnout pdf (Strana 35)

RE-TRANSMITTED ANALOG OUTPUT (Optional)

The re-transmitted analog output option transmits a digitally

programmable 4 to 20 mA or 0 to 10 VDC signal to drive chart recorders,

remote indicators and controllers. The option is contained on the upper PCB

and has two outputs, “ANALOG-” (TBB #10) and “ANALOG+” (TBB #11)

and is self-powered (active) with a compliance of 10 VDC. The analog “-”

output is isolated from the input common, eliminating problems from ground

loops. Programming of the option is performed in “Pro 8” of the normal

programming mode. Display values are simply keyed in to providea4mAor

0 VDC output, “AN-Lo”, and a 20 mA or 10 VDC output, “AN-HI”. The

analog output then follows the assigned value and as such will update every

measurement cycle. Nonstandard current or voltage ranges can be supported

by calculating the slope and intercept of the display/output and calculating

the required display values at 4 mA or 0 VDC and 20 mA or 10 VDC. Reverse

action can be achieved by programming a “high” display value for “AN-Lo”

and a “low” display value for “AN-HI”.

If the display should indicate an “OLOLOL”, “ULULUL”,or“SHort” the

analog output will go to 20 mA or 10 VDC for an “OLOLOL” or “SHort”, and

4mAor0VDCfora“ULULUL”.

Note: Analog “-” must be kept isolated from Alarm Comm. (TBB #8).

-33-

ANALOG OUTPUT DIAGRAMS

1 2 ... 30 31 32 33 34 35 36 37 38 39 40 ... 47 48

Žádné komentáře

Apollo Intelligent Meter Series IMY Uživatelský manuál Strana 35