Matched pair of resistance thermometers, PRTDM 101

Matched pair of resistance thermometers, PRTDM 101

These units are designed for temperature difference measurement, and also for heat carrier temperature measurement in heat meters and other heat energy control units in open and close heat supply systems.

Pair of resistance thermocouples PRTDM 102 can be completed with thermowell UNKJ 011 or UNKJ 012

Technical characteristics

mounting elements are designed for nominal (rated) pressure 1.0 MPa   for PRTDM 101

response time does not exceed
16 s  –  for insertion part diameter equal to 6,0 mm;
20 s  –  for insertion part diameter equal to 8,0 mm

protection sheath material    S10  –  steel 12Cr18Ni10Т

Temperature range

Type of

TC

sensor tolerance class

temperature difference
measurement range, °С

operating temperature
range, °С

PRTDM

100P, Pt100, Pt500

А, В

3 to 155

0 to 160

Execution options

Insertion length L: 80, 100, 120, 160, 200, 250, 320 mm.

Type

Design modification

Fitting
thread, М

Type of TC

Cl

Diameter
d, mm

Insertion length, L, mm

modification

typical
version*

min

max

PRTDM

101

-010

М12х1.5,
М16х1.5

100P, Pt100, Pt500

А4, В4, В2

6

80

200

М16х1.5,
М20х1.5,
G 1/2¢¢

8

80

320

102

6

80

320

* – see Appendix for version description.

Examples of product designation

PRTDM 10х-010 - ХХХ - TC -  Cl. - d - L
PRTDM 101-010 - М20 - Pt500 - В2 - 8 - 320 – matched pair of platinum resistance thermometers, modification 101-010 with polymeric terminal head, calibration Pt500, tolerance class В, 2-wire configuration, outer diameter 8 mm, insertion length 320 mm; mounting elements: ring 18 mm diameter, threaded fitting М20х1.5.
At the time of order it is recommended to specify actual minimum heat carrier operating temperature and minimum measuring temperature difference.