aci BACnet / Modbus IMMERSION Series Installation & Operation Instructions Download Page 8

PRODUCT SPECIFICATIONS

12 to 36 VDC / 24 VAC +/- 10%, 50/60 Hz (Reverse Polarity Protected)
25 mA maximum (0.67 VA)

-22 to 176°F (-30 to 80°C)
-40 to 302°F (-40 to 150°C )

@ 77°F (25°C):

 +/- 1.0°F (+/- 0.5°C)

+/- 9°F (+/- 5°C) (Field Configurable)
BACnet MS/TP or Modbus RTU = Field Selectable; EIA RS-485
0 to 127 (0 (Default - Must be changed if Modbus RTU is selected protocol); 
Field Selectable)
Auto Baud (Default, 

BACnet Only

), 9600, 19200, 38400, 57600, 76800, 115200 

(Field Selectable)
1 Address (example: Address 127 = 1035127; Field Configurable)
None/Even/Odd = Field Selectable
1 or 2 = Field Selectable
8
Screw Terminal Blocks / 16 AWG (1.31 mm

2

) to 22 AWG (0.33 mm

2

)

0.45 lbf-in (0.5 Nm) nominal
½” NPS (National Pipe Straight) Male Thread

“-PB” Enclosure:

 ABS Plastic, UL94-HB, Plenum Rated

Supply Voltage:
Current Consumption:
Operating Temperature Ranges
 Transmitter:
 Sensor:
Temperature Measurement Accuracy: 
Temperature Calibration Offset:
Communication Protocol:
Sensor Addresses:

Supported Baud Rates:

Device Instance Number:
Parity (Modbus RTU)
Stop Bits (Modbus RTU)
Databits (Modbus RTU)
Connections / Wire Size:
Terminal Block Torque Rating:
Thermowell Instrument:
Enclosure Specifications:

Page 8

Automation Components, Inc.

2305 Pleasant View Road  |  Middleton, WI 53562

Phone:

 1-888-967-5224  |  

Website:

 workaci.com

1001

1002

9001 Thru 
9016

9017 Thru 
9048

9049 Thru 
9080

User can set what temperature value (Tenths) that would be 
returned when reading IR3 and Test Mode is Enabled in CL1001.  For 
Example -400 would be -40.0.
User can set what RH value (Tenths) that would be returned when 
reading IR4 and Test Mode is Enabled in CL1001.

Device Name, Device Location, and Device Description are user 
settable character strings (Null terminated) that can be used to allow 
for system customization and device identification. 

For example:

Device Name (Modbus 9001 thru 9016) could be set to a system ID: 
"S2253"

Device Location (Modbus 9017 thru 9048) could be set to:
  "Building 5, Floor 2, Duct 3"

Device Description (Modbus 9049 thru 9080) could be set to: 
  "Cold air return sensor"

Test Mode 
Temperature Value

Test Mode RH Value

Device Name

Device Location

Device Description

1000

1001

9000 Thru 
9015

9016 Thru 
9047

9048 Thru 
9079

Version: 2.0

I0000929

BACnet is a registered trademark of ASHRAE. ASHRAE does not endorse, approve or test products for compliance with ASHRAE standards. Compliance of listed products to the requirements of ASHRAE 

Standard 135 is the responsibility of BACnet International (BI). BTL is a registered trademark of BACnet International.

W.E.E.E. DIRECTIVE 

At the end of their useful life the packaging and product should be disposed of via a suitable recycling 
centre.  Do not dispose of with household waste. Do not burn.

Summary of Contents for BACnet / Modbus IMMERSION Series

Page 1: ...tor shielded cable is recommended for powering the sensors ACI recommends using Belden 3105 or compatible cable for RS 485 communication wiring This wire has 120 ohm input impendence The terminal bloc...

Page 2: ...no stratification Reference FIGURE 4 Make sure the entire thermowell is immersed If the thermowell is longer than the pipe diameter the thermowell should be installed in an elbow or Tee Apply thermal...

Page 3: ...NPS process thread to be used with a machined thermowell or previously installed thermowell Verify the existing thermowell insertion length of the pipe is suitable for your selected Immersion If the...

Page 4: ...a line When the jumper is set to DIS disable the resistance is not added By default the jumper is placed in the DIS disabled position SW4 OFF ON 1 ON 2 3 4 BACnet MS TP and Modbus RTU INTERFACE Contin...

Page 5: ...when a change is made the device must be power cycled or reset for changes in address to be made DEVICE CONFIGURATION THROUGH BACnet DEVICE INSTANCE The Device Instance by default is 1035000 plus the...

Page 6: ...NAME BN211x0 Temperature Sensor RH Sensor Temperature Calibration Offset RH Calibration Offset OBJECT ID AI 0 AI 1 AV 0 AV 1 TABLE 6 BACnet OBJECT TABLE DEVICE CONFIGURATION THROUGH MODBUS RTU MODBUS...

Page 7: ...tring of the Firmware Version For example 02 00 000 90 Sensors Present Reserved Temperature Sensor Value RH Sensor Value Temperature Range Min Temperature Range Max RH Range Min RH Range Max Unsigned...

Page 8: ...ite workaci com 1001 1002 9001 Thru 9016 9017 Thru 9048 9049 Thru 9080 User can set what temperature value Tenths that would be returned when reading IR3 and Test Mode is Enabled in CL1001 For Example...

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