MTR09 Surface Mount RTD Assembly Weld-pad Mounting MIEPL
                     MTR09 SURFACE MOUNT RTD ASSEMBLY  
Weld-pad Mounting
MIEPL Make RTD MTR09 accurately sense 
temperature with an excellent degree of repeatability 
and interchange ability of elements. The RTD is 
composed of certain metallic elements whose change 
in resistance is a function of temperature. This type of 
RTDs are used to measure surface temperature . A 
pad is avaible to sensing temperature.
 
STANDARD SPECIFICATIONS
Element : :Pt-100, class B
FEATURES Range
: -200...400°C
Wire combination : Simplex, 3 Wire
Ü Weld-Pad connection
Sheath material : AISI 316 SS
Ü Mineral insulated
Sheath diameter : 6.0 mm
Ü Exchangeable insert
Head enclosure : Weatherproof, IP 65, threaded cover
Ü Spring loaded design
Enclosure material : Die-cast aluminum
Cable entry : ¾" ET (F), 1 No.
Mounting type : Bracket Mounting for Head
APPLICATION
Weld pad size : 50 mm X 25 mm X 25 mm
Ü Surface temperature
Weld pad material : AISI 316 SS
Ü Measurement of Heater 
Total length : 350 mm
tubes on flat surfaces
DRAWING
Ü Power & Utilities
Mounting Length
Mounting Weld
Clamp Pad
Expansion Loop
REFERENCE Diameter
Welding Adjustable Welding
Ü IEC-751 / DIN 43760 Connector
Heater Tube
Sheath Diameter
Swivel Nut
Cable Entry
Terminal Head
BX BZ BV BY BU BX BS BT
NOTE :- TOTAL LENGTH = Extension Length + Perimeter of Expansion Loop + Mounting Length Single cable entry enclosures Dual cable entry enclosures
ISO 9001 : 2015 www.miepl.com 01
Extension Length
MTR09 SURFACE MOUNT RTD ASSEMBLY  
ORDERING CODE MTR09   -  PT100B    - XXX -  C    -   MF  - M60 -  BZ    -  ML  -  CO
Pt100, Class A PT 100 A
Pt100, Class B PT 100 B
Pt500, Class A PT 500 A
1. ELEMENT
Pt500, Class B PT 500 B
Pt1000, Class A PT1000 A
Pt1000, Class B PT1000 B
-200…400°C XXX
2. RANGE
0…600°C XXX
Simplex, 2-Wire A
Simplex, 4-Wire D
Duplex, 3-Wire H
3.  WIRE 
     COMBINATION Simplex, 3-Wire C
Duplex, 2-Wire F
Duplex, 4-Wire I
4.  SHEATH AISI 316 SS MF
     MATERIAL AISI 316L SS MG
3.0 mm M30
5. SHEATH 5.0 mm M50
    DIAMETER
6.0 mm M60
8.0 mm M80
WP, IP 65, threaded cover BZ
WP, IP 67, threaded cover BX
Flame proof, IP 67, Gr IIA, IIB BS
6. HEAD 
    ENCLOSURE Explosion proof, IP 67, Gr IIC BT
WP, IP 65, Hinged type BV
WP, IP 65, cover fitted with 2 screw BY
Ex-Proof to CSA,FM,ATEX [EEx-d]s BU
Die-cast aluminum ML
7. ENCLOSURE   AISI 316 SS MF
MATERIAL
AISI 304 SS MC
¾" ET (F), 1 No. C0
½" NPT (F), 1 No. C1
M20 x 1.5mm (F), 1 No. C2
¾" NPT (F), 1 No. C3
8. CABLE ENTRY ¾" ET (F), 2 Nos. C5
½" NPT (F), 2 Nos. C6
M20 x 1.5mm (F), 2 Nos. C8
¾" NPT (F), 2 Nos. C9
ISO 9001 : 2015 www.miepl.com 02
MILLENNIUM  INSTRUMENTS  LIMITED
Tel : +91- 11- 220 143 25 / 27, Email : [email protected] 
MTR09 SURFACE MOUNT RTD ASSEMBLY  
ORDERING CODE     B1   -   W2  -  MF 
Local mountiog, no bracket B0
Bracket mounting, for head B1
9. MOUNTING TYPE
2" Pipe mounting bracket B2
Surface mounting, for JB B3
Rectangle, 100 x 25 x 25 mm W0
Rectangle, 100 x 50 x 50 mm W1
10. WELD PAD / Rectangle, 50 x 25 x 25 mm W2
INTEGRAL COLLAR 
SIZE Integral collar, 30 x 19 x 10 mm W4
Integral collar, 40 x 19 x 10 mm W5
Integral collar, 50 x 19 x 10 mm W6
AISI 316 SS MF
AISI 310 SS ME
11. WELD PAD 
      MATERIAL
AISI 446 SS M6
Inconel 600 MQ
12. TOTAL LENGTH 
(TL) 50 mm up to 25,000 mm XXXXXX
Plug Fitting For CE, AISI 304 SS JB
Plug Fitting For CE, AISI 316 SS JC
SC, Cable Gland, Ni-brass WP JD
DC, Cable Gland, Ni-brass WP JE
SC, Cable Gland,AISI 304 SS WP JF
DC, Cable Gland,AISI 304 SS WP JG
SC, Cable Gland,AISI 316 SS WP JH
DC, Cable Gland,AISI 316 SS WP JI
13. OTHER OPTIONS SC, Cable Gland, Ni-brass FP JJ
DC, Cable Gland, Ni-brass FP JK
SC, Cable Gland,AISI 304 SS FP JL
DC, Cable Gland,AISI 304 SS FP JM
SC, Cable Gland,AISI 316 SS FP JN
DC, Cable Gland,AISI 316 SS FP JO
Terminal Head In SS 304 JP
Terminal Head In SS 316 JQ
Terminal Head In Cast Iron JR
SS base Plate For Transmitter JS
Head Mount Transmitter JT
Plug Fitting For CE, Aluminum JU
Calibration Certificate SB
Tag Plate, AISI 304 SS WF
Ordering Example MTR09  -  PT100B  -  XXX  -  C  -  MF -  M60 -  BZ -  ML  -  CO  -  N0  - 4NM 
1. Other sheath diameters, materials and connections are available, please contact factory for details.
2. Not available in Double, 4-Wire combinations.
3. WP = Weatherproof, FP = Flame proof, SC = Single Compression, DC = Double Compression, CE = Cable Entry, JB = Junction Box.
4. Transmitter output shall be 4…20 mA as standard, any other output required, please contact factory for details.
ISO 9001 : 2015 www.miepl.com 03
MILLENNIUM  INSTRUMENTS  LIMITED
Tel : +91- 11- 220 143 25 / 27, Email : [email protected]