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Description
Surface contact/ tube contact temperature measuring transducers
THERMASGARD® ALTM 2 - VA
Calibratable THERMASGARD® ALTM 2 - VA tube contact temperature measuring transducer with eight switchable measuring ranges, external sensor, continuous output, rugged housing in V4A stainless steel, with cable gland or M12 connector according to DIN EN 61076-2-101.
The surface-contact transmitter is used for temperature detection on lines, pipes (e.g. cold and hot water) or on heating sections for heating system control.
The sensor is factory-calibrated and can be fine-tuned to ambient conditions by an expert.
The sensor is factory-calibrated and can be fine-tuned to ambient conditions by an expert.
Technical details
Power consumption
< 1,0 W/ 24 V DC
< 2,2 VA/ 24 V AC
< 2,2 VA/ 24 V AC
Sensor
Pt1000, DIN EN 60751, class B
(Perfect Sensor Protection)
(Perfect Sensor Protection)
Sensor protection
pipe feeder, stainless steel V4A (1.4571), Ø = 6 mm,
nominal length NL = 50 mm, cable entry stamped
nominal length NL = 50 mm, cable entry stamped
Connection type
2-wire connection
Measuring ranges
multi-range switching with 8 switchable measuring ranges,
(other ranges optional)
detached sensor variant: Tmax over 100 °C, operating range –50... +150 °C;
with manual zero point correction (± 10 K)
(other ranges optional)
detached sensor variant: Tmax over 100 °C, operating range –50... +150 °C;
with manual zero point correction (± 10 K)
Accuracy
typically ± 0.2 K at +25 °C
Ambient temperature
Measuring transducer –30...+70 °C
Process connection
endless metal strap and metal tightener
(included in scope of delivery)
(included in scope of delivery)
Insulating resistance
100 MΩ,
at +20 °C (500V DC)
at +20 °C (500V DC)
Strap dimensions
Ø = 13 - 92 mm (¼ - 3"), L = 300 mm
Electrical connection
0.14 - 1.5 mm² via terminal screws
Housing
stainless steel V4A (1.4571),
with non-distortion cover bolting,
impact-resistant, high EMI shielding,
corrosion, temperature, UV and weathering resistant
with non-distortion cover bolting,
impact-resistant, high EMI shielding,
corrosion, temperature, UV and weathering resistant
Housing dimensions
143 x 97 x 61 mm (Tyr 2E)
sensor cable
Silicone, SiHF, 2 x 0,25 mm²; cable length (KL) = 1.5 m
(other lengths and jacket materials, e.g. PTFE or
glass fibre with steel mesh, available on request)
(other lengths and jacket materials, e.g. PTFE or
glass fibre with steel mesh, available on request)
Permissible air humidity
< 95 % RH, non-precipitating air
Protection class
III (according to EN 60 730)
Protection type (sensor)
IP 65 (according to EN 60 529) sleeve humidity-tight (standard)
IP 68 (according to EN 60 529) sleeve water-tight (optional)
IP 68 (according to EN 60 529) sleeve water-tight (optional)
Protection type housing
IP 65 (according to EN 60 529)
Housing tested, TÜV SÜD, Report No. 713160960B (Skadi2)
Housing tested, TÜV SÜD, Report No. 713160960B (Skadi2)
Standards
CE conformity,
electromagnetic compatibility according to EN 61326,
according to EMC Directive 2014/ 30/ EU
electromagnetic compatibility according to EN 61326,
according to EMC Directive 2014/ 30/ EU