Danfoss MBT 3252 Data sheet
Data Sheet
Temperature sensor
Type MBT 3252
Heavy-duty industrial application temperature sensor.
Heavy-duty temperature sensor for controlling
cooling water, lubrication oil, hydraulic oil and
refrigeration plants within general industry.
This temperature sensor is based on a
standardised Pt 100 element, which gives a
reliable and accurate measurement.
The changeable measuring insert is equipped
with a silicone cable, which makes the sensor
very resistant towards vibrations.
The MBT 3252 is equipped with a B-head as
standard.
If needed, a transmitter (MBT 9110) can be
ordered as an integrated part of the MBT 3252
sensor.
Features:
• Gaseous or liquid media, e.g. air, gas, vapour,
water or oil
• Resistance or 4 – 20 mA signal
• Up to 200 °C media temperature
• Pt sensing element with silicone cable
• Can be used with 2 or 3 wire connections
• Interchangeable measuring insert
• Available with built-in transmitter
• Also available in a marine version as MBT
5252
AI201986428009en-000301
Features
Description
Measuring range
-50 – 200 °C
Sensing element
Pt 100
Protection tube
ø10 × 2 mm
Permissible media velocity
Air
25 m/s
Steam
25 m/s
Water
3 m/s
Process connection
G ½ A
Max. tightening torque
50 Nm
Width across ats
HEX 27
Type
Protection tube
Indicative response times
Water 0.2 m/s
Air 1 m/s
t
0.5t0.9t0.5t0.9
MBT 3252
ø10 × 2 mm
14 s
42 s
110 s
390 s
Features
Description
Max. temperature
(1)
Ambient:
90 °C for sensors without temperature transmitter
Transmitter:
85 °C for sensors with temperature transmitter
Sensor tolerance
EN 60751 Class B: ± (0.3 + 0.005 × t)
t = temperature of medium, numerical value
Vibration stability
Shock:
100 g / 6 ms
Vibrations:
4 g sine function 5 – 200 Hz, measured acc. to IEC 60068-2-6
Enclosure
IP65 according to IEC 60529
Cable entry B-head
Pg 16
Temperature transmitter MBT 9110
Supply voltage:
8 – 35 V DC
Output:
4 – 20 mA
Features
Description
Protection tube in contact with media
W.no. 1.4571 (AISI 316 Ti)
Process connection in contact with media
W.no. 1.4404 (AISI 316 L)
Extension length
W.no. 1.4571 (AISI 316 Ti)
Union nut
Nickel plated brass
Connection head
Die cast aluminium
Temperature sensor, Type MBT 3252
Product specication
Technical data
Table 1: General data
Table 2: Connection
Table 3: Response time
Table 4: Mechanical and environmental specications
(1)
(1)
The temperature of the transmitter is inuenced by media temperature, ambient temperature and ventilation in the surroundings. If the
The temperature of the transmitter is inuenced by media temperature, ambient temperature and ventilation in the surroundings. If the
temperature of the transmitter exceeds the max. allowed temperature the, transmitter must be placed in a separated enclosure, as described
temperature of the transmitter exceeds the max. allowed temperature the, transmitter must be placed in a separated enclosure, as described
in the separate data sheet for MBT 9110.
in the separate data sheet for MBT 9110.
Table 5: Materials
© Danfoss | Climate Solutions | 2021.02 AI201986428009en-000301 | 2
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