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Description
Surface contact / tube contact temperature measuring transducer
THERMASGARD® ALTM1
Calibratable THERMASGARD® ALTM 1 surface-contact temperature measuring transducer (compact version) with eight switchable measuring ranges, continuous output, in an impact resistant plastic housing with quick-locking screws, optionally with/without display, incl. strap.
The surface-contact sensor serves to detect the temperature on lines, pipes (e.g. cold and warm water) or on heating sections for heating control. 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
Voltage supply
15...36 V DC
depending on working resistance, residual ripple stabilised ± 0.3 V
depending on working resistance, residual ripple stabilised ± 0.3 V
Temperature deviation
typically ± 0.4 °F at +77 °F
Sensor
Pt1000, DIN EN 60751, class B
Connection type
2- or 3-wire connection
Ambient temperature
Measuring transducer –22 … +158°F
Process connection
endless metal strap and metal tightener
(included in scope of delivery)
(included in scope of delivery)
Insulating resistance
100 MΩ,
at +68 °F (500V DC)
at +68 °F (500V DC)
Strap dimensions
Ø = 0.51 - 3.62 in (¼ - 3"), L = 12 in
Electrical connection
AWG 16 - 26 via terminal screws
Cable gland
M 16 x 1.5, including strain relief, exchangeable,
max. inner diameter 0.4 in
max. inner diameter 0.4 in
Permissible air humidity
< 95 % RH, non-precipitating air
Protection class
III (according to EN 60 730)
Measuring ranges
multi-range switching with 8 switchable measuring ranges,
(other ranges optional)
compact variant: Tmax up to 100 °C, operating range –50...+100 °C
with manual zero point correction (± 10 K)
(other ranges optional)
compact variant: Tmax up to 100 °C, operating range –50...+100 °C
with manual zero point correction (± 10 K)
Cable connection
cable gland, plastic (M 16 x 1.5; with strain relief, exchangeable, max. inner diameter 0.4 in) or
M12 connector according to DIN EN 61076-2-101 (optional on request)
M12 connector according to DIN EN 61076-2-101 (optional on request)
Housing
plastic, UV-stabilised,
material polyamide, 30 % glass-globe-reinforced
colour traffic white (similar to RAL 9016)
ALTF 02 with snap-on lid,
material polyamide, 30 % glass-globe-reinforced
colour traffic white (similar to RAL 9016)
ALTF 02 with snap-on lid,
Protection type
IP 54 (according to EN 60 529)
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