Description
PMI mineral insulated sensors are available with a 3.0mm, 4.5mm, 6.0mm or 8.0mm diameter 316 stainless steel probe.
The sensors are supplied complete with an epoxy resin sealed plain pot seal and with PVC or PFA insulated extension cable. They can be supplied as simplex or duplex, with a wiring configuration of 2, 3 or 4-wire to suit your application requirements.
The mineral insulated construction allows the sensors to be bent and protects the Pt100/Pt1000 element against failure caused by vibration.
The stem of the sensor is temperature rated -75°C to +500°C.
This product can be supplied with a calibration certificate.
Bespoke Options
This product can be custom-made and/or configured to your requirements using the options below. Each option has a code that is used to construct a final order code. An example order code is included.
Item |
Options |
Code |
Sensor Type |
Mineral Insulated RTD (Pt100) Sensor with Pot Seal (+500°C) |
PMI |
Mineral Insulated RTD (Pt1000) Sensor with Pot Seal (+500°C) |
PMIK |
Probe Diameter (D1) |
3.0mm |
3.0 |
4.5mm |
4.5 |
6.0mm |
6.0 |
8.0mm |
8.0 |
Detector Elements |
Simplex (1 channel) |
S |
Duplex (2 channels) |
D |
Probe Length (mm) (L1) |
As required to suit your application |
e.g. 250 |
Wiring Configuration |
2-wire |
2 |
3-wire |
3 |
4-wire (Simplex only) |
4 |
Grade of Element |
B (Accuracy: ±0.30°C at 0°C, ±0.80°C at 100°C) |
B |
A (Accuracy: ±0.15°C at 0°C, ±0.35°C at 100°C) |
A |
1/3 (Pt100 only) (Accuracy: ±0.08°C at 0°C, ±0.19°C at 100°C) |
1/3 |
1/5 (Pt100 only) (Accuracy: ±0.05°C at 0°C, ±0.15°C at 100°C) |
1/5 |
1/10 (Pt100 only) (Accuracy: ±0.03°C at 0°C, ±0.12°C at 100°C) |
1/10 |
Cable Length (mm) (L3) |
As required to suit your application |
e.g. 200 |
Extension Cable |
PFA Insulated Tails |
PFA720 |
PVC Insulated, Screened (+105°C), 6.0mm dia. only, 3-wire |
PT1320 |
PVC Insulated, Screened (+105°C), 6.0mm dia. only, 4-wire |
PT1420 |
PVC Insulated, Screened (+105°C), 6.0mm dia. only, 6-wire |
PT1620 |
PFA Insulated, Screened (+260°C), 3-wire |
PT5320 |
PFA Insulated, Screened (+260°C), 4-wire |
PT5420 |
PFA Insulated, Screened (+260°C), 6-wire |
PT5620 |
Optional RTD Connector
(supplied attached to cable) |
Miniature RTD Plug |
FMPU |
Miniature 3-Pin RTD Plug |
FMPTU |
Standard RTD Plug |
RSPU |
Standard 3-Pin RTD Plug |
RSPTU |
Optional 316 Stainless Steel Compression Fitting (to suit probe diameter)
Add suffix to code: AS for 1/8", CS for 1/4", ES for 1/2" (e.g. CF30AS) |
3.0mm (1/8" BSPT, 1/4" BSPT, 1/2" BSPT) |
CF30 |
4.5mm (1/8" BSPT, 1/4" BSPT, 1/2" BSPT) |
CF45 |
6.0mm (1/8" BSPT, 1/4" BSPT, 1/2" BSPT) |
CF60 |
8.0mm (1/4" BSPT, 1/2" BSPT) |
CF80 |
Order Code (example): PMI-4.5-S-200-3-B-200-PT1320-FMPU-CF45CS