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THERMASGARD

MWTM

Calibrateable mean value temperature measuring transducer THERMASGARD

MWTM (rod sensor) with eight switchable measuring

ranges, continuous output, fully active flexible sensor rod for mean value measurement, plastic-coated copper protective tube (sturdy

version), terminal box enclosure made of impact-resistant plastic and enclosure cover with quick-locking screws. This feeler is used for the

detection of average temperatures (mean values) in gaseous media, e.g. in ventilation and air conditioning ducts over the entire cross

section, or over a defined length. Laid meander-like it detects evenly the surrounding temperature as duct sensor. The mean value sen-

sors are factory-calibrated. Adjustment ⁄ fine adjustment by the user is possible (range and zero point are adjustable). The mean value

sensor MWTM is available in lengths of 0.4 m ... 20 m and as a standard is delivered including mounting flange. Mounting clamps MK-05-M

can optionally be ordered as accessories.

TECHNICAL DATA:
Power supply: .............................. 24 V AC ⁄ DC ± 10 % for output 0 - 10 V

15 - 36 V DC for output 4 ... 20 mA

(depending on working resistance)

Sensor: ......................................... Pt1000, DIN EN 60751, class B
Measuring ranges: ..................... multi-range switching

with 8 switchable measuring ranges,

see table (other ranges optional)

min

- 50 °C, T

max

+ 80 °C

with manual zero point correction (± 10 K)

Output: ......................................... 0 - 10 V or 4... 20 mA
Ambient temperature: .............. measuring transducer - 30...+ 70 °C
Connection type: ........................ 2- or 3-wire connection
Sleeve: .......................................... stainless steel, 1.4571, V4A
Rod material:............................... copper sensor tube, plastic-coated

with spring for buckling protection

Sensor and rod dimensions: .... Ø = 5.0 mm, nominal length NL = 0.4 m, 3 m or 6 m

(NL optional up to 20 m)

Active length: .............................. active over the entire sensor length
Installation: .................................. observe minimum bending radius of 35 mm

and permissible vibration loads ≤ 1 ⁄ 2 g

Connecting head: ....................... plastic, material polyamide,

30 % glass-globe-reinforced,

with quick-locking screws,

colour pure white (similar RAL 9010)

Dimensions: ................................. 72 x 64 x 39.4 mm
Cable gland: ................................. M16, including strain relief
Electrical connection: ................ 0.14 - 1.5 mm²

via terminal screws on circuit board

Process connection: .................. by mounting flange, plastic

(galvanised steel optional)

and mounting clamps MK - 05- M

Humidity: ...................................... < 95 %  r. H.,  non-precipitating  air
Protection class: ........................ III  (according to EN 60 730)
Protection type:.......................... IP 65   (according to EN 60 529)
Standards: ................................... CE conformity, electromagnetic compatibility

according to EN 61326: 2006,

according to EMC directive 2004 ⁄ 108 ⁄ EC

Optional: ....................................... single-line display with illumination,

cutout 37 x15 mm (W x H),

for displaying actual temperature

Type ⁄ WG1

Sensor

Rod Length

Output

MWTM - I ⁄ 0.4 m

Pt1000 (DIN EN 60751)

0.4 m