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- Modbus | Wireless Modbus
- Rymaskon
- EtherCAT P
- Accessory
Description
Surface contacting temperature sensor
THERMASGARD® ALTM 2 - Modbus - SD
Calibratable THERMASGARD ® ALTM 2 - Modbus tube contact temperature measuring transducer with detached sensor and strap, Modbus connection, terminal box enclosure made of impact resistant plastic, enclosure cover with quick-locking screws, with/without optional display for indicating the actual temperature.
The surface-contact sensor is used for temperature detection on lines, pipes (e.g. cold and hot water) or on heating sections for heating system control. The tube sensor is factory-calibrated. Adjustment/Fine-tuning by the user is possible (zero-point offset is adjustable).
Technical details
Voltage supply
24 V AC (± 20 %) and
15…36 V DC
15…36 V DC
Power consumption
< 1,0 W/ 24 V DC
< 2,2 VA/ 24 V AC
< 2,2 VA/ 24 V AC
Temperature deviation
typically ± 0.4 °F at +77 °F
Sensor
Pt1000, DIN EN 60751, class B
Measuring range
–58...+302 °F
detached sensor variant:
Tmax to +302 °F
detached sensor variant:
Tmax to +302 °F
Zero point offset
± 18 °F
Ambient temperature
Measuring transducer –22 … +158°F
Medium
clean air and
non-aggressive, non-combustible gases
non-aggressive, non-combustible gases
Error detection
sensor breakage, sensor short circuit
Bus protocol
Modbus (RTU mode),
address range 0...247 selectable
address range 0...247 selectable
Signal filtering
0,3 s / 1 s / 10 s
Process connection
endless metal strap and metal tightener
(included in scope of delivery)
(included in scope of delivery)
Strap dimensions
Ø = 0.51 - 3.62 in (¼ - 3"), L = 12 in
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),
housing cover for display is transparent !
material polyamide, 30 % glass-globe reinforced,
with quick-locking screws
(slotted/ Phillips head - combination),
colour traffic white (similar to RAL 9016),
housing cover for display is transparent !
Housing dimensions
2.8 x 2.5 x 1.7 in (Tyr 1 with Display)
Cable gland
2x M 12 x 1.5 (Y-adapter); with strain relief,
exchangeable, max. inner diameter 0.24 in
exchangeable, max. inner diameter 0.24 in
sensor cable
silicone, SiHF, 2 x 24 AWG, KL = 5 ft
(other lengths and range limits optional,
e.g. PTFE leads up to + 482 °F or
glass fibre with steel wire mesh up to + 662°F)
(other lengths and range limits optional,
e.g. PTFE leads up to + 482 °F or
glass fibre with steel wire mesh up to + 662°F)
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) humidity-tight stamped
IP 68 (optional watertight compound-filled) rolled
IP 68 (optional watertight compound-filled) rolled
Standards
CE conformity
according to EMC Directive 2014/ 30/ EU,
according to EN 61 326
according to EMC Directive 2014/ 30/ EU,
according to EN 61 326
Display
two-line display with illumination, programmable,
cutout approx. 36 x 15 mm (W x H),
for displaying the actual temperature or
an individually programmable display value
(The Modbus interface allows the display to be individually
configured in the 7-segment area and in the dot-matrix area.)
cutout approx. 36 x 15 mm (W x H),
for displaying the actual temperature or
an individually programmable display value
(The Modbus interface allows the display to be individually
configured in the 7-segment area and in the dot-matrix area.)