Calibratable surface-contact temperature measuring transducer
THERMASGARD
®
ALTM 1
(compact variant) and
ALTM 2
(detached variant) with
eight switchable measuring ranges, continuous output, in an impact-resistant plastic housing with quick-locking screws, optionally with ⁄ without
display, cable sensor with a pipe feeder (
ALTM 2)
, incl. strap.
The surface-contact sensor is used 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; an environmental precision adjustment by an expert is possible.
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 (
Perfect Sensor Protection
)
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: typically ± 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
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!
Housing 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 (other lengths
and range limits optional, e.g. PTFE leads up to +250 °C or glass
fibre with steel wire mesh up to +350°C)
Cable connection:
cable gland
, plastic (M 16 x 1.5; with strain relief,
exchangeable, inner diameter 10.4 mm)
or
M12 connector
according to DIN EN 61076-2-101 (optional on
request)
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) Housing tested,
TÜV SÜD, Report No. 713139052 (Tyr 1)
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)
G
THERMASGARD
®
ALTM
Rev. 2020 - V16
Display and internal diagnostics
Measuring range
exceeded
Standard
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
Cable connection with
M12 connector
according to DIN EN 61076-2-101
on request
ACCESSORIES
WLP-1
Heat-conductive paste, silicone-free
7100-0060-1000-000
