GREYSTONE HAS AN ISO 9001 REGISTERED QUALITY SYSTEM

OUTSIDE NETWORK TEMPERATURE SENSOR

TNOS SERIES

PRODUCT DESCRIPTION

The single point outside network temperature

transmitter sensor incorporates a precision sensor

housed in a protective sun/wind shield. All probes

are constructed to provide excellent heat transfer,

fast response and are potted to resist moisture

penetration. The transmitter provides a BACnet® or

Modbus signal for network connection. A compact,

weatherproof ABS enclosure with a hinged and

gasketed cover is provided for ease of installation.

TYPICAL INSTALLATION

For complete installation and wiring details,

please refer to the product installation

instructions.

The outside temperature transmitter should be

mounted on an outside North facing wall, under

the eaves which will provide protection from direct

sunlight.

The outside temperature sensor can be mounted

directly to the building’s wall face using the

provided mounting holes. There is one 0.85” hole

for conduit connection.

NOTE: This product is factory calibrated and any field adjustment will void the warranty.

POWER SUPPLY

BACnet®: 24 Vac/dc ±10% (non-isolated half-wave rectified)

Modbus: 24 Vac/dc ±20% (non-isolated half-wave rectified)

CONSUMPTION

BACnet®: 25 mA max @ 24 Vdc

Modbus: 10 mA max @ 24 Vdc

OUTPUT SIGNAL

MS/TP 2-wire RS-485 (BACnet® or Modbus)

OPERATING ENVIRONMENT

-40 to 50°C (-40 to 122°F), 5 to 95 %RH non-condensing

PROBE MATERIAL

Machined aluminum

WIRE MATERIAL

PVC insulated, parallel bonded (22 AWG)

WIRING CONNECTIONS

Screw terminal block (14 to 22 AWG)

ENCLOSURE

A: Polycarbonate, UL94-V0, IP65 (NEMA 4X)

E: Same as A, with thread adapter (1/2” NPT to M16) and cable gland fitting

COUNTRY OF ORIGIN

Canada

TEMPERATURE

Sensing Element: NTC thermistor

Accuracy: ±0.2°C (±0.36°F) @ 0 to 70°C (32 to 158°F)

Probe Sensing Range: -40 to 50°C (-40 to 122°F)

Resolution: 0.1°C/°F

BACnet® COMMUNICATIONS INTERFACE

Hardware: 2 wire RS-485

Software: Native BACnet® MS/TP protocol

Baud Rate: 9600, 19200, 38400, 57600, 76800, or 115200 (auto-detect)

Network Address Range: Locally set to 0-127

Serial Configuration: 8N1

MODBUS COMMUNICATIONS INTERFACE Hardware: 2 wire RS-485

Software: Native Modbus MS/TP protocol (RTU)

Baud Rate: 9600, 19200, 38400, 57600, 76800, or 115200 (auto-detect)

Network Address Range: Locally set to 1-255 (switch selectable)

Parity: None

Stop Bits: 1

Error Checking: A001 (CRC-16 reverse)

INPUT VOLTAGE EFFECT

Negligible over specified operating range

PROTECTION CIRCUITRY

Reverse voltage protected and transient protected

SPECIFICATIONS

CABLE GLAND FITTING

THREAD ADAPTER 1/2” NPT TO M16

ACCESSORIES - INCLUDED WITH E ENCLOSURE OPTION

North

OSA Temperature

Sensor

82.5 mm

3.75"

69.8 mm

2.75"

57.2 mm

2.075"

0.5" NPT