Critical Environment Technologies AST-IS5 Bedienungsanleitung PDF herunterladen (Seite 9)

TERMINAL DEFAULT

OUTPUT

DEFAULT

OUTPUT

RANGE

OUTPUTS OF

THIS SENSOR

OUTPUT

RANGE OF

THIS SENSOR

OUT-1 4-20 mA 0-2000 ppm CO

OUT-2 2-10 VDC 0 - 50

RELAY Closed

Open

>1000 ppm CO

<900 ppm CO

DEFAULT OUTPUT CONFIGURATION FOR AST-IS5

Configuration Output Range Formula for Calculation

0-10 VDC 0-2000 ppm CO

0 - 50

value = Volt / 10 * 2000

Temperature value in C = Volt / 10 * 50

2-10 VDC 0-2000 ppm CO

0 - 50

CCO

value = (Volt-2) / 8 * 2000

Temperature value in C = (Volt-2) / 8 * 50

4-20 mA 0-2000 ppm CO

0 - 50

CO2 value = (nA-4) * 2000 / 16

Temperature value in C = (mA-4) * 50 / 16

a-b c-d Value = (reading-a) / (b-a) * (d-c) + c

a = lowest value of the configuration

b = highest value of the configuration

c = lowest value of the range

d = highest value of the range

FORMULAS FOR CALCULATING OUTPUT VALUES

NOTE: RED LED is lit when the relay output is closed.

OUTPUT CONFIGURATIONS

JUMPER POSITION FUNCTION

Start point

selection jumper

20%

Jumper top position provides 0VDC or 0mA start point

for OUT-1, OUT-2 (0-20 mA or 0-10 VDC)

Jumper bottom position provides 2VDC or 4mA start

point for OUT-1, OUT-2 (4-20 mA or 2-10 VDC)

OUT-1 Current

Voltage

Connection in position “Current” provides 0/4-20 mA

output range for OUT-1

Connection in position “Voltage” provides 0/2-10 VDC

output range for OUT-1

OUT-2 Current

Voltage

Connection in position “Current” provides 0/4-20 mA

output range for OUT-2

Connection in position “Voltage” provides 0/2-10 VDC

output range for OUT-2

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

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