Devices are to be connected under dead-voltage condition. Devices must
only be connected to safety extra-low voltage. Consequential damages
caused by a fault in this device are excluded from warranty or liability.
Installation of these devices must only be realized by authorized qualified
personnel. The technical data and connecting conditions shown on the
device labels and in the mounting and operating instructions delivered
together with the device are exclusively valid. Deviations from the cata-
logue representation are not explicitly mentioned and are possible in
terms of technical progress and continuous improvement of our pro-
ducts. In case of any modifications made by the user, all warranty claims
are forfeited. Operating this device close to other devices that do not
comply with EMC directives may influence functionality. This device must
not be used for monitoring applications, which solely serve the purpose
of protecting persons against hazards or injury, or as an EMERGENCY
STOP switch for systems or machinery, or for any other similar safety-
relevant purposes.
Dimensions of enclosures or enclosure accessories may show slight
tolerances on the specifications provided in these instructions.
Modifications of these records are not permitted.
In case of a complaint, only complete devices returned in original pack-
ing will be accepted.
Notes regarding mechanical mounting and attachment:
Mounting shall take place while observing all relevant regulations and
standards applicable for the place of measurement (e.g. such as welding
instructions, etc.). Particularly the following shall be regarded:
– VDE ⁄ VDI directive technical temperature measurements, measure-
ment set - up for temperature measurements.
– The EMC directives must be adhered to.
– It is imperative to avoid parallel laying of current-carrying lines.
– We recommend to use shielded cables with the shielding being
attached at one side to the DDC ⁄ PLC.
Before mounting, make sure that the existing thermometer‘s technical
parameters comply with the actual conditions at the place of utilization,
in particular in respect of:
– Measuring range
– Permissible maximum pressure, flow velocity
– Installation length, tube dimensions
– Oscillations, vibrations, shocks are to be avoided (< 0.5 g)
Attention! In any case, please observe the mechanical and thermal load
limits of protective tubes according to DIN 43763 respectively accord-
ing to specific S+S standards!
Notes regarding process connection of built-in sensors:
If possible, select material of protective tube to match the material of
piping or tank wall, in which the thermometer will be installed!
Maximum temperatures T
max
and maximum pressures p
max
are as follows:
for TH - MS brass sleeves T
max
= +150 °C, p
max
= 10 bar and
for TH - VA stainless steel sleeves (standard) T
max
= +400 °C, p
max
= 40 bar.
Screw-in threads:
Ensure appropriate support of the gasket or sealing material when
mounting! Permissible tightening torque standard values for screw - in
threads, are as follows:
M 18 x 1.5; M 20 x 1.5, pipe thread G 1 ⁄ 2" : 50 Nm
M 27 x 2.0, pipe thread G 3 ⁄ 4"
: 100 Nm
Flange mounting:
In case of flange mounting, screws in the flange part must be equally
tightened. The lateral pressure screw must clamp securely, otherwise
the feeler shaft might slip through.
Welding sleeves:
Specific welding instructions shall be observed.
On principle, unevenness or the like that might influence the system‘s
”CIP ability“ must not develop at welds.
For high-pressure lines, pressure test certifications and inspections are
required.
CONNECTING CONDITIONS
Output: 0 - 10 V
The output voltage follows linear to the temperature signal applied at
the input terminals and generates a proportional output signal of 0 - 10 V.
The voltage outputs are short-circuit proof against ground wire. Applying
voltage supply to the output terminals will destroy the device.
Output: 4 ... 20 mA
In case of the 4 ... 20 mA measuring transducer, display and evaluating
elements are connected in series in the current loop. The measuring
transducer thereby liWiths the flowing current in variance of the input
signal. 4 mA are for the measuring transducer‘s internal current con-
sumption. The apparent ohmic resistance can either be connected in the
plus or minus path of the measuring transducer. In case of an apparent
ohmic resistance in the plus path, power supply and resist
G
Mounting and Installation
INFORMATION FOR
PLANNING AND INSTALLATION
Permissible approach velocities (flow rates)
for crosswise approached protective tubes
in water.
The protective tube is caused to vibrate by the
approaching flow.
If the specified approach velocity is exceeded even by
a marginal amount, a negative influence on the lifetime
of the protective tube may result (material fatigue).
Please observe the permissible approach velocities for
stainless steel protective tubes (see diagram TH-VA) as
well as for brass protective tubes (see diagramTH-ms).
Gas discharges and pressure surge must be avoided
as such have negative influence on lifetime or damage
protective tubes.
TH-VA
TH-ms
50
75
100
125
150
175 200 225 250 275 300 325 350 375 400
0
10
20
30
Permissible approach velocities (flow rates) for protective tubes 8 x 0.75mm
P = 20 bar ⁄ T = 200°C (water)
[v
] =
m
⁄s
[l] = mm
6
7
8
