Calibratable room temperature measuring transducer
THERMASGARD
®
RTM 1
with continuous
output, with or without optional display for displaying the actual temperature in an elegant
housing made of plastic, with snap-on lid, base with 4-hole attachment for installation on verti-
cally or horizontally installed in-wall flush boxes, with predetermined breaking point for on-wall
cable entry, or in housing made of stainless steel (top and bottom part are of stainless steel,
the lid is screwed on), vandal-proof version e.g. for schools, military barracks, and public
buildings. This room temperature transmitter ⁄ residential room temperature sensor is used
to detect ⁄ display temperatures in closed dry rooms, in apartments, in offices, supermarkets
and business facilities.
TECHNICAL DATA
Power supply:
24 V AC ⁄ DC (± 10 %) for U variant
15...36 V DC for I variant,
depending on working resistance,
residual ripple stabilised ± 0.3 V
Working resistance:
R
a
(ohm) = (U
b
-14 V) ⁄ 0.02 A for I variant
Load resistance:
R
L
> 5 kOhm for U variant
Power consumption:
< 1.0 W ⁄ 24 V DC; < 2.2 VA ⁄ 24 V AC
Sensor:
Pt1000, DIN EN 60751, class B
Measuring ranges:
multi-range switching with 8 switchable measuring ranges,
see table (other ranges optional)
operating range –30...+70 °C
with manual zero point correction (± 10 K)
Deviation, temperature:
typically ± 0.2 K at +25 °C
Output:
0 - 10 V or 4...20 mA
Ambient temperature:
measuring transducer –30...+70 °C
Connection type:
2- or 3-wire connection
Process connection:
by screws
Housing:
plastic, material ABS, colour pure white (similar to RAL 9010),
(optional stainless steel)
V2A
(1.4301)
Dimensions:
85 x 85 x 27 mm (Baldur 1)
75 x 75 x 25 mm (stainless steel)
Electrical connection:
0.14 - 1.5 mm² via terminal screws
Installation:
wall mounting or on in-wall flush box Ø 55 mm,
base with 4-hole for mounting on vertically or horizontally installed in-wall flush boxes
for cable entry from the back, with predetermined breaking point for on-wall cable entry
from top ⁄ bottom in case of plain on-wall installation
Humidity:
< 95 % r. H., non-precipitating air
Protection class:
III (according to EN 60 730)
Protection type:
IP 30
(according to EN 60 529)
Standards:
CE conformity, electromagnetic compatibility according to EN 61326,
according to EMC directive 2014 ⁄ 30 ⁄ EU
Optional: Two-line
display with illumination
, cutout 36 x 15 mm (W x H), for displaying the
ACTUAL temperature
and the
internal diagnostics
(sensor breakage, sensor short circuit)
Display and internal
diagnostics
Standard
Sensor
breakage
Sensor
short circuit
G
THERMASGARD
®
RTM
Rev. 2022 - V25
RTM 1 - xx
with display
THERMASGARD
®
RTM 1
Room temperature measuring transducers
Type ⁄ WG01
Sensor
Output
Features
Display Item No.
RTM1 - U
IP 30, U - variant
R T M1-U
Pt1000
0 - 10 V
–
1101-41A1-0000-200
R T M1-U
LCD
Pt1000
0 - 10 V
Display
*
■
1101-41A1-2000-200
R T M1-U VA
Pt1000
0 - 10 V
Stainless steel housing
V2A
(1.4301)
1101-4151-0000-200
RTM1 - I
IP 30, I - variant
R T M1-I
Pt1000
4...20 mA
–
1101-41A2-0000-200
R T M1-I
LCD
Pt1000
4...20 mA
Display
*
■
1101-41A2-2000-200
R T M1-I VA
Pt1000
4...20 mA
Stainless steel housing
V2A
(1.4301)
1101-4152-0000-200
Extra charge:
Other ranges optional
Note:
*
When equipped with display, the measuring range of 0...+50 °C is fixed.
