G
THERMASGARD
®
ALTM
Rev. 2018 - V14 GB
Calibratable tube contact temperature measuring transducers
THERMASGARD
®
ALTM 1
and
ALTM 2
with eight switchable measuring ranges,
internal or remote sensor, continuous output, strap and terminal box enclosure made of impact-resistant plastic, enclosure cover with quick-locking
screws, with or without optional display. This surface contact sensor is used for temperature detection on piping and tubes (e.g. cold-water and
hot-water), or on heating sections for heating system control. The tube sensors are factory-calibrated. Adjustment ⁄ fine adjustment by the user is
possible (range and zero point are adjustable).
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 VA ⁄ 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)
with manual zero point correction (± 10 K)
ALTM 1:
compact variant,
T
max
up to +100 °C,
operating range –50...+100 °C
ALTM 2:
detached sensor variant,
T
max
over +100 °C,
operating range –50...+150 °C
Deviation, temperature: ± 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:
endless metal strap and metal tightener (included in the scope of delivery)
Strap dimensions:
Ø = 13 - 92 mm (¼ - 3"), length L = 300 mm
Enclosure:
plastic, UV-stabilised, material polyamide, 30 % glass-globe reinforced,
with quick-locking screws (slotted ⁄ Phillips head combination),
colour traffic white (similar to RAL 9016),
,
enclosure cover for display is transparent!
Dimensions:
72 x 64 x 37.8 mm (Tyr 1 without display)
72 x 64 x 43.3 mm (Tyr 1 with display)
Connection cable:
ALTM 2:
silicone, SiHF, 2 x 0.25 mm², KL = 1.5 m, ends stripped,
with wire end sleeves (optional PTFE leads up to + 250 °C or
glass fibre with steel wire mesh up to + 350°C)
Cable gland:
M 16 x 1.5, including strain relief, exchangeable,
max. inner diameter 10,4 mm
Electrical connection:
0.14 - 1.5 mm² via terminal screws
Insulating resistance:
≥ 100 MΩ, at +20 °C (500 V DC)
Humidity:
< 95 % r. H., non-precipitating air
Protection class:
III (according to EN 60 730)
Protection type:
ALTM 1:
IP 65
(according to EN 60 529)
ALTM 2:
IP 65
rolled ⁄ stamped humidity-tight
IP 68
(optional sensor sleeve watertight compound-filled)
Standards:
CE conformity, electromagnetic compatibility according to
EN 61326, according to EMC directive 2014 ⁄ 30 ⁄ EU
Optional: Two-line
display with illumination,
cutout approx. 36 x15 mm (W x H),
for displaying the
ACTUAL temperature
and the
internal diagnostics
(measuring range exceeded, measuring range not reached,
sensor breakage, sensor short circuit)
THERMASGARD
®
ALTM
– Surface contact ⁄ tube contact temperature measuring transducers
Type ⁄ WG01
Sensor
Output
Type
Display Item No.
ALTM 1
IP 65
A LT M1-I
Pt1000
4...20 mA
Compact
1101-1112-0219-920
A LT M1-I DISP L AY
Pt1000
4...20 mA
Compact
■
1101-1112-2219-920
A LT M1- U
Pt1000
0 -10 V
Compact
1101-1111-0219-920
A LT M1- U DISP L AY
Pt1000
0 -10 V
Compact
■
1101-1111-2219-920
ALTM 2
IP 65
A LT M2-I
Pt1000
4...20 mA
Remote sensor
1101-1122-0219-920
A LT M2-I DISP L AY
Pt1000
4...20 mA
Remote sensor
■
1101-1122-2219-920
A LT M2- U
Pt1000
0 - 10 V
Remote sensor
1101-1121-0219-920
A LT M2- U DISP L AY
Pt1000
0 - 10 V
Remote sensor
■
1101-1121-2219-920
Extra charge:
other ranges optional
Protection type
IP 68
(Sensor sleeve watertight compound-filled)
2-wire connecting leads, per running meter
(PVC ⁄ silicone)
on request
Accessories
WLP-1
Heat-conductive paste set
7100-0060-1000-000
Display and internal diagnostics
Measuring range
exceeded
Standard
Measuring range
not reached
Sensor
breakage
Sensor
short circuit
