BAS Series Battery Safety Aerosol Sensors Datasheet | sps.honeywell.com/ast |

2

BATTERY SAFETY AEROSOL SENSORS

BAS SERIES

TABLE 1. GENERAL SPECIFICATIONS1

Characteristic

Parameter

Operating temperature range

-40°C to 85°C [-40°F to 185°F]

Particulate matter measurement range

200 µg/m3 to 10000 µg/m3

Accuracy

≤±15% at threshold concentration of 5000 µg/m³

Response time

≤1 s

Current consumption (average):

ECO Mode

Continuous Working Mode

<0.5 mA

<30 mA

ECO Mode wake-up threshold

5000 µg/m3

1

All specifications are at room temperature unless otherwise noted.

TABLE 2. ELECTRICAL SPECIFICATIONS 1

Characteristic

Min.

Typ.

Max.

Unit

Supply voltage (Vs)

8

12

16

Vdc

Wake-up signal:

High level voltage

Low level voltage

Output current

8

—

0.6

12

—

1.2

16

0.5

1.8

Vdc

Vdc

mA

REQUEST Input from from BMS to BAS:

High level voltage

Over voltage capability

8

—

12

—

16

24

Vdc

Vdc

Reverse voltage capability

-14

—

—

Vdc

1

All specifications are at room temperature unless otherwise noted.

TABLE 3. COMMUNICATIONS SETTINGS

Baud Rate

ID

Period

Length

500 kbps

0x667

1 s

8 Bytes

TABLE 4. MESSAGE FORMAT

Byte

Name

Definition

BYTE0

particulate matter concentration

—

BYTE1

particulate matter concentration

—

BYTE2

Low-Power Mode wake-up threshold

—

BYTE3

Low-Power Mode wake-up threshold

—

BYTE4

0-2

status

0x00 = normal

0x01 = alarm

0x02 = reserved

3-7

fault

0x00 = normal

0x01 = photoelectric device fault

0x02 = Vs over voltage

0x03 = Vs under voltage

others = reserved

BYTE5

0-3

rolling counter

—

BYTE6

4-7

—

—

BYTE7

CRC check code

—