MR-828 Datasheet, PDF (1/1 Pages) List of Unclassifed Manufacturers – MR series elements are designed for applications where high vibration resistance as well as high temperature stability are vital

Platinum Resistance Temperature Detector
MR 828 and 845
MR series elements are designed for applications where high vibration resistance as well as high temperature stability are
vital. Typical industrial applications include analytical and medical equipment, chemical plants and mechanical equipment.
Small tolerances on diameter allow problem free installation in protective tubes.
Type
Toler ance
DIN EN 60751
1 99 6- 07
Tole rance
DIN EN 60751
2 00 9- 05
1 Pt 100 MR 828
1 Pt 500 MR 828
1 Pt 1000 MR 828
2 Pt 100 MR 828
2 Pt 1000 MR 828
1 Pt 100 MR 845
Class B
F 0.3
1 Pt 500 MR 845
1 Pt 1000 MR 845
2 Pt 100 MR 845
2 Pt 500 MR 845
2 Pt 1000 MR 845
The measuring point for the basic value is situated at 8 mm from the end of the sensor body
Order Number
32 209 340
32 209 341
32 209 342
32 209 343
32 209 345
32 209 346
32 209 347
32 209 348
32 209 349
32 209 350
32 209 351
Diameter D in m m
2,8 ^±0,3
2,8 ^±0,3
2,8 ^±0,3
2,8 ^±0,3
2,8 ^±0,3
4,5 ^±0,3
4,5 ^±0,3
4,5 ^±0,3
4,5 ^±0,3
4,5 ^±0,3
4,5 ^±0,3
Specification
DIN EN 60751
Nominal resistance
100Ω; 500Ω and 1000Ω at 0°C
Temperature range
-70°C to +500°C (continuous operation)
Temporary use to 550°C possible
Tolerance Class B: -70°C up to +500°C
Temperature coefficient
Leads
Lead lengths (L)
TCR = 3850 ppm/K
Pt clad Ni- wire
6 mm +2 / -1mm
Longterm stability
Vibration resistance
max. R0-drift 0.1% after 1000h at 500°C
according to DIN EN 60751
Environmental conditions
unhoused for dry environments only
Insulation resistance
> 100 MΩ at 20°C; > 2 MΩ at 500°C
Measuring current
100Ω 0.3 to 1.0mA
500Ω 0.1 to 0.7mA
1000Ω 0.1 to 0.3mA
(self heating has to be considered)
Response time
Self heating
Packaging
Water (v= 0.4m/s)
Air (v= 2m/s)
MR 828:
MR 845:
t0,5 = 0.9s t0,9 = 2.7s
t0,5 = 12.3s t0,9 = 39.5s
t0,5 = 1.5s t0,9 = 4.6s
t0,5 = 24.8s t0,9 = 78.8s
MR 828 (Pt 100/500/1000): 0.05 K/mW at 0°C
MR 828 (2 Pt 100/1000): 0.16 K/mW at 0°C
MR 845 (Pt 100/500/1000): 0.04 K/mW at 0°C
MR 845 (2 Pt 100/1000): 0.08 K/mW at 0°C
blister reel
Note
Other tolerances, values of resistance and wire lengths are available
on request.
We reserve the right to make alterations and technical data printed. All technical data serves as a guideline and does not guarantee
particular properties to any products.
Heraeus Sensor Technology USA
1901 Route 130
North Brunswick, NJ 08902
Phone [phone] Fax [phone]
Email [e-mail]
www.hst-us.com
Name of document: 30910032 Index A
Status: 10/2009