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Automation Components, Inc.

2305 Pleasant View Road  |  Middleton, WI 53562

Phone:

 1-888-967-5224  |  

Website:

 workaci.com

WARRANTY

The ACI BACnet and Modbus RTU Room Series temperature sensors are covered by ACI’s Five (5) Year 
Limited Warranty, which is located in the front of ACI’S SENSORS & TRANSMITTERS CATALOG or can be 
found on ACI’s web site: www.workaci.com.

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.

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.

Version: 2.0

I0000927

PRODUCT SPECIFICATIONS

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

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

@ 77°F (25°C):

 +/- 1.0°F (+/- 0.5°C)

+/- 9°F (+/- 5°C) (Field Configurable)
One
0 to 100%

@ 77°F (25°C):

 +/- 2% from 10 to 90% RH

+/- 10% RH (Field Configurable)
4 seconds
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
-40 to 185°F (-40 to 85°C)
10 to 95% RH, non-condensing
304 Stainless Steel | Diameter: 0.750” (19.05 mm)

“-PB” Enclosure:

 ABS Plastic, UL94-HB, Plenum Rated

“-EH” Enclosure: 

ABS Plastic with UV Protectant, UL94-V0

Neoprene/EPDM/SBR Polymer / UL94-HBF; FMVSS-302; MIL-R-6130C

Supply Voltage:
Current Consumption:
Number Temperature Sensing Points:
Operating Temperature Range:
 Transmitter:
 

Sensor (Temp-Only):

 

Sensor (RH and Temp/RH):

Temperature Measurement Accuracy: 
Temperature Calibration Offset:
Number RH Sensing Points:
RH Measurement Range:
RH Measurement Accuracy:
RH Calibration Offset:
Temperature / RH Update Rate:
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:
Storage Temperature Range:
Operating Humidity Range:
Sensing Probe & Filter Material:
Enclosure Specifications:

Foam Pad Material / Flammability:

Summary of Contents for BACnet Series

Page 1: ...we recommend removing the block wiring and reattaching before mounting 16 to 22 AWG two conductor 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 blocks allow for 1 or 2 wires to be connected in each position for daisy chaining Daisy chain the RS 485 wirin...

Page 2: ...ings followthesetips The sensor should be mounted in the middle of the duct where air circulation is well mixed no stratification and not blocked by obstructions Stratification and obstructions can cause sensing errors An example is downstream from a heating or coolingcoil Duct probe should be placed 3 to 4 duct segments down from any bend or obstructions and away from 90 bends Mount the sensor on...

Page 3: ...es are allowed to send and receive tokens on the MSTP network ACI s Modbus RTU sensors are slave devices Only one master is connected to the bus and several slave nodes are connected to the same trunk The Master initiates communication The slave nodes only respond to a request from the Master Slave nodes do not communicate with each other Each branch must have all devices connected with connected ...

Page 4: ... INFORMATION One LED indicates four statuses Solid green shows that power is good but no data is transmitting A solid Amber indicates that auto baud is set and no data has been received to set a baud rate Green Amber flashing indicates data is being transmitted or received Solid Red LED status indicates an error state usually loss of communication on the network If BACnet is the selected protocol ...

Page 5: ...Sensor objects AI0 and AI1 a test mode can be set by writing the Boolean value true to the out of service property Then the present value can be set to any valid test value the user requires This allows a user to test reactions to specific values returned by this device DEVICE LOCATION The device location is optional but is intended to allow for further definition of the device s location The devi...

Page 6: ...e as in the Master device configuration ACI s Modbus RTU sensors utilize 8 data bits during communication exchange Parity and stop bit selection is performed via the SW4 switch located on the board Dipswtiches 1 and 2 are adjusted to select the parity and stop bits see TABLE 6 Where 0 is OFF and 1 is ON If BACnet protocol is selected these dipswitches are irrelevant TEST MODE Modbus RTU There are ...

Page 7: ...ature Units 0 2 3 1001 1002 9001 Thru 9016 9017 Thru 9048 9049 Thru 9080 Temperature Offset Value Tenths Signed Integer User can set an offset that will be added to Temperature sensor and reflected in IR3 Range of 5 0 to 5 0 degrees Celsius degrees Kelvin 9 0 to 9 0 degrees Fahrenheit For example writing 16 would add an offset of 1 6 degrees Relative Humidity Offset Tenths User can set an offset t...

Page 8: ...able 4 seconds 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 1035000 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 mm2 to...

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