WIRELESS Mean value temperature measuring transducers THERMASGARD® MWTM-wModbus 3M LCD

Communication

Rod length

Display

output model

Item no. 1101-326F-4230-000

EAN 4251325629278

Product group: WG01

Mean value temperature measuring transducers THERMASGARD® MWTM - Modbus - T3

W-Modbus is a wireless-based further development of the proven Modbus standard for the wireless connection of Modbus-enabled sensors, controllers and devices. W-Modbus devices communicate via a wireless radio link from LumenRadio - independently of the in-house Wi-Fi and without leaving the proven protocol standards. Thanks to the reliable and interference-resistant wireless network, entire buildings can be networked and the majority of Modbus RTU cables can be replaced.

Innovative Modbus sensor with galvanically separated RS485 Modbus interface, selectable bus termination resistance, DIP switch for setting the bus parameters and bus address in current-free state, internal LEDs for telegram status display, two separate push-in terminals and large three-line display (illuminated, with customised programming in the 7-segment range and dot-matrix range). Uses internal diagnostics to detect sensor breakage or sensor short circuit as errors. The error messages can be retrieved via Modbus and are shown on the display. The sensor is factory-calibrated; an environmental precision adjustment by an expert is possible.

Voltage supply

24 V AC (± 20 %) and
15…36 V DC

Power consumption

< 1.2 W/ 24 V DC; < 1.8 VA/ 24 V AC

Data points

température [°C] [°F]

Temperature deviation

typically ± 0.2 K at +25 °C

Sensor

Pt1000, DIN EN 60751, class B

Measuring range

– 50...+ 150 °C; Tmin –50 °C, Tmax + 80 °C

Accuracy

typically ± 0.2 K at +25 °C

Zero point offset

± 10 °C

Ambient temperature

Measuring transducer –30...+70 °C

Medium

clean air and
non-aggressive, non-combustible gases

Error detection

sensor breakage, sensor short circuit

Bus protocol

Modbus (RTU mode),
address range 0...247 selectable

Signal filtering

0,3 s / 1 s / 10 s

Sleeve

stainless steel, 1.4571, V4A

Probe

active over the entire length
(averaging)

Electrical connection

0.2 - 1.5 mm², via push-in terminal

Communication

W-Modbus (Wireless Modbus with 2.4 GHz ISM)

Cable gland

2x M 20 x 1.5; with strain relief, replaceable,
inner diameter 8 - 13mm

Installation

Bending radius > 35 mm
admissible vibration load 0,5 g
admissible tensile load < 480N

Permissible air humidity

< 95 % RH, non-precipitating air

Protection class

III (according to EN 60 730)

Protection type

IP 65 (according to EN 60 529)*

Internal diagnostics

Error 1 at sensor breakage
Error 2 at sensor short circuit

Process connection

by mounting flange, plastic
(galvanised steel optional, see accessories)
and mounting clamps MK - 05 - M

Rod material

protective tube made from copper, plastic-coated,
with anti-kink spring and sleeve, stainless steel V4A (1.4571)

Sensor and rod dimensions

Ø = 5.0 mm,
nominal length NL = 3 m
(nominal length optional up to max. 20 m)

Cable connection

cable gland, plastic
(M 20 x 1.5; with strain relief, exchangeable,
inner diameter 8 - 13 mm) or
M12 connector according to DIN EN 61076-2-101
(optional on request)

Housing

plastic, UV-stabilised,
material polyamide, 30 % glass-globe reinforced,
with quick-locking screws
(slotted/ Phillips head - combination),
colour traffic white (similar to RAL 9016)

Standards

CE conformity according to Radio Directive 2014 / 53 / EU

BUS info

Configuration Instructions

Catalogue page EN

QuickStart W-Modbus

CE - Declaration of Conformity

UKCA declaration of conformity

Operating instructions

CAD data

Tender text