Novus RHT-WM-485-LCD Instruction Manual

Transmitters RHT-WM-485-LCD,
RHT-DM-485-LCD and RHT-P10-485-LCD
TEMPERATURE AND HUMIDITY TRANSMITTER –
INSTRUCTIONS MANUAL V1.0x E
1

INTRODUCTION

RHT-WM-485-LCD, RHT-DM-485-LCD
The
transmitters include high precision and stability sensors for measuring
temperature and relative humidity. They are microprocessed devices and,
therefore, allow being entirely configured through a RS485 interface, using
the Modbus RTU commands. The DigiConfig allows the configuration of all
transmitter features as well as its diagnostic procedure.
The transmitter can be configured or displaying the values of measured
temperature and Relative Humidity or the values of measured temperature
and Dew Point.
1.1 IDENTIFICATION
The identification label is fixed on the transmitter body. Check if the features
described on this label are in accordance with your order.
The RHT-WM-485-LCD and RHT-P10-485-LCD models intended for wall
mounting, while the RHT-DM-485-LCD model comes with a probe tip rod for
installation in ducts or through walls.
The following elements are located at the front side of the transmitter:
Fig. 1 – Transmitter front
Communication Indicator (COM): Indicates when the device is receiving
data from the Modbus network.
Button (Programming): Button used for configuration of the
communication parameters and for screen changing.
Temperature: Value of measured temperature.
Relative Humidity: Value of measured relative humidity.
Fig. 2 – Second transmitter screen
Communication Address: Value programmed for identifying the transmitter
of the Modbus network. Programmable between 1 and 247.
NOVUS AUTOMATION
RHT-P10-485-LCD
and
2

SPECIFICATIONS

From -40 °C to 70 °C
Operating temperature of
the transmitter
Sensor and Rod (RHT-DM): See Fig. 3.
Electromagnetic
EM 61326:2000
compatibility
Temperature: -40.0 °C to 100.0 °C.
Sensor measuring
Relative Humidity (RH): 0.0 to 100.0 % RH.
range
Dew Point: -40.0 °C and 100.0 °C
See Fig. 3.
Measurement accuracy
Note: a small measurement error can be
eliminated adjusting the OFFSET parameter of
the software.
Temperature: 0.1 °C.
14 bits (16383 levels)
Measuring resolution
Relative Humidity (RH): 0.1 %.
12 bits (4095 levels)
Temperature: up to 30 s in slow air movement.
Response time
Humidity: up to 8 s in smooth air movement
Sampling interval
3 seconds
Power supply 12 Vdc to 30 Vdc, consumption < 16 mA
Housing
Polycarbonate
Product appropriate for applications which
require protection class up to IP65.
Protection class
Electronic module case: IP65; Sensor
capsule: IP40
Dimensions 60 x 70 x 35 mm
Configuration Software for Windows 98, NT,
2000, XP and Vista.
DigiConfig software
Menus in Portuguese, English or Spanish.
operation environment
Configures, reads and exhibits data on the
screen.
1.5 m long communication cable is part of the
Accessories
product or can be purchased separately (PN:
8813099999).
(No Condensing)
(20 to 80 % RH).
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