RTD Helmet-mounted temperature transmitter TMT187A
Application areas
Head mounted temperature transmitter with iHART- protocol for converting various input signals into a
scalable 4 to 20 mA analogue output signal
| Power supply |
| Supply voltage |
7.5 to 45 VDC , polarity protected |
| Output |
| Output signal |
4 to 20 mA |
| Signal on alarm |
Underranging Linear drop to 3.8 mA |
| Overranging linear rise to 20.8 mA |
| Sensor break; |
| sensor short-circuit(not for thermocouples TC) :3.6mA or 22 mA |
| Load |
Max.(Vpower supply-7.5 V)/0.022 A |
| Linearisation/transmission behaviour |
Temperature linear |
| Installation conditions |
|
| Installation instructions |
Installation angle:no limit |
| Installation area:connection head according to DIN 43 729 Form B; |
| TAF 10 |
| Performance characteristics |
| Response time |
1 s |
| Reference operating conditions |
Calibrationtemperature: 23℃(73.4F)5Ko |
| Long-term stability |
<0.05%/year |
| Switch on delay |
<5S |
| In |
Negligible |
| Load in |
Negligible |
| Maximum measured error |
Input |
Type |
Measurement accuracy |
| RTD |
Pt100 |
0.2K or 0.08% |
| Pt1000 |
0.3K or 0.12% |
| Environment conditions |
| Ambient temperature limits |
-40℃ to 85℃(-40℉ to 185℉) |
| Storage temperature |
-50℃ to 100℃(-58℉ to 212℉) |
| Condensation |
Allowable |
| Degree of protection |
IP00,IP66(installed) |
| Shock and vibration resistance |
4g/2 to 150 Hz as per IEC 60 068-26 |
| Electromagnetic |
Interference immunity and interference emission according |
| compatibility(EMC) |
to GB/T17626.2-1998, compliance with IEC 61000-4-3:1995 |
| Others |
| Dimensions |
Dia. 44 mmX24 mm |
| Weight |
Approx. 34g |
| Material |
Housing: PC |
| Potting: epoxy |