Danfoss MBT 5250, MBT 5260, MBT 5252 Data sheet

MBT 5250 MBT 5260

MBT 5252

MBT 5250 MBT 5260

MBT 5252

Data Sheet

Temperature sensor Types MBT 5250, MBT 5260 and MBT 5252

Heavy-duty marine approved temperature sensor.

Heavy-duty temperature sensors for controlling cooling water, lubrication oil, hydraulic oil and refrigeration plants within general industry and marine applications. These temperature sensors are based on a standardized Pt 100 or Pt 1000 element, which gives a reliable and accurate measurement. All three sensor types can be delivered with NTC / PTC elements on request.

In the low temperature version (-50 – 200 °C) the measuring insert is based on a silicone cable, which makes the sensor very resistant towards vibrations. The MBT 5250 with changeable measuring insert and MBT 5260 with xed measuring insert are equipped with EN 175301-803-A, Pg 9 as standard. The MBT 5252 is equipped with a B-head as standard, but can also be delivered with B-mini Head on request.

If needed, a transmitter (MBT 9110) can be ordered as an integrated part of the MBT 5252 sensor.

Features:

• Gaseous or liquid media, e.g. air, gas, vapour, water or oil

• Up to 200 °C media temperature (MBT 5250 and MBT 5260)

• Up to 200 °C or 400 °C media temperature (MBT 5252)

• Pt 100 or Pt 1000 sensing element

• Can be used with 2 or 3 wire connections

• Gold plated male and female connector (MBT 5250 and MBT 5260)

• MBT 5250 and MBT 5252 with interchangeable measuring insert

• MBT 5260 with xed measuring insert

• Available with built-in transmitter (MBT 5252)

AI208386431879en-000801

Features

Description

Measuring range

-50 – 200 °C

Sensing element

Pt 100, Pt 1000

Protection tube

ø8 × 1 mm

Permissible media velocity Air

25 m/s

Water

3 m/s

Process connection

G ¼ A

G ³⁄₈ A – M18

G ¾ A

M24

Max. tightening torque

25 Nm

50 Nm

100 Nm

Type

Protection tube

Indicative response times

Water 0.2 m/s

Air 1 m/s

0.5t0.9t0.5t0.9

MBT 5250 with interchangeable measuring insert

ø8 × 1 mm

9 s

33 s

95 s

310 s

MBT 5260 with xed meas. ins.

ø8 × 1 mm

6 s

20 s

35 s

140 s

Features

Description

Sensor tolerances

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 EN 175301-803

Pg 9, Pg 11 or Pg 13.5

Features

Description

Protection tube in contact with media

W.no. 1.4571 (AISI 316 Ti)

Process connection

W.no. 1.4404 (AISI 316 L)

Extension length

W.no. 1.4571 (AISI 316 Ti)

Union

Nickel plated brass

Gasket

Silicone

Plug EN 175301-803

PA 6.6 (max 125 °C)

Temperature sensor, Types MBT 5250, MBT 5260 and MBT 5252

Product specication

Technical data

MBT 5250, MBT 5260

Table 1: General data

Table 2: Connection

Table 3: Response times

Table 4: Mechanical and environmental specications

Table 5: Materials

TmTpT

Max. temperature (Ext. length “None”) Plug EN 175301-803

Max. load on protection tube (ø8 × 1, ø10 × 2) acc. to EN 175301-803

Danfoss

93Z99

Insertion length

Media temperature

Temperature for electric plug

Ambient temperature

Features

Description

Measuring range

-50 – 200 °C or -50 – 400 °C

Sensing element

Pt 100, Pt 1000

Protection tube

Low temperature: ø10 × 2 mm High temperature: ø11 × 1 mm

Permissible media velocity

Air

25 m/s

Stream

25 m/s

Water

3 m/s

Process connection

G ¼

G ¼ A – G ½ A

G ³⁄₈ A – M18

G ¾ A

M24

Max. tightening torque

25 Nm

50 Nm

100 Nm

Type

Protection tube

Indicative response times

Water 0.2 m/s

Air 1 m/s

0.5t0.9t0.5t0.9

MBT 5252

ø10 × 2 mm

14 s

42 s

110 s

390 s

MBT 5252 (HT)

ø11 × 1 mm

25 s

80 s

150 s

450 s

Features

Description

Protection tube in contact with media

W.no. 1.4571 (AISI 316 Ti)

Process connection

W.no. 1.4404 (AISI 316 L)

Extension length

W.no. 1.4571 (AISI 316 Ti)

Union

Nickel plated brass

Connection head

Die cast aluminium

Temperature sensor, Types MBT 5250, MBT 5260 and MBT 5252

Table 6: Max. temperature and load

 NOTE:

For extension length = 50 mm no limitations up to 200 °C media temperature and 90 °C ambient temperature.

MBT 5252

Table 7: General data

Table 8: Connection

Table 9: Response times

Table 10: Materials

LABCD

Features

Description

Max. ambient temperature

(1)

Sensors without transmitter

90 °C

Sensors with transmitter

85 °C

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

Pg16

Cable entry BM

Pg 9

Temperature transmitter MBT 9110 Supply voltage:

8 – 35 V DC

Output:

4 – 20 mA

ø11 × 1

ø8 × 1, ø10 × 2

Danfoss

93Z99

Insertion length

Without extension length

With extension length

Extension length

Insertion length

Protection tube

Process connection

Union

Temperature sensor, Types MBT 5250, MBT 5260 and MBT 5252

Table 11: Mechanical and environmental specications

(1)

The temperature of the transmitter is inuenced by media temperature, ambient temperature and ventilation in the engine room. If the

The temperature of the transmitter is inuenced by media temperature, ambient temperature and ventilation in the engine room. If the temperature of the transmitter exceeds the max. allowed temperature the transmitter must be data placed in a separated enclosure, as

temperature of the transmitter exceeds the max. allowed temperature the transmitter must be data placed in a separated enclosure, as described in the separate sheet for MBT 9110.

described in the separate sheet for MBT 9110.

Table 12: Max. load on protection tube according to DIN 43763

Dimensions

MBT 5250, MBT 5260

Table 13: Extension length

 NOTE:

• Tightening torque for the mounting screw at the rear end of the electrical connection plug: 25 Ncm

• Tightening torque for the union (position “E”): 17 Nm

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