MILITARY QUALIFIED & LISTED ON QPL-24388
RdF has been supplying spring loaded temperature sensors to MIL-T-24388 for over twenty years. We offer these sensors with three different sensing elements: resistance temperature detectors(either nickel or platinum), and type K(Chromel/Alumel) ungrounded thermocouple. Military standard qualifications include: MIL-S-901 shock and MIL-STD-167 vibration testing.
We design these sensors to measure a variety of shipboard measurements including coolant fluid, stack temperature, and hydraulics for wet accumulators.
Thermowells per MIL-W-24270 are also available.
Performance Specifications
Type 21700 Resistance Temperature Detector
Reference Grade Platinum Element α=0.003923Ω/Ω/°C
Resistance 100.00 ± 0.44Ω @32°F, 139.24Ω@212°F
Maximum Connection Head Temperature: 500°F
| PN | MIL-T-24388B Classification | "L" Length | "A" Length | Temperature Range °F |
Insertion Length (inches) |
|---|---|---|---|---|---|
| 21700-1 | RTEP-4-2TW | 4.44 | 1.75 | -40° to 200° | 2.69 |
| 21700-2 | RTEP-6-2TW | 6.69 | 4.00 | -40° to 400° | 2.69 |
| 21700-3 | RTEP-9-2TW | 9.69 | 7.00 | -40° to 1000° | 2.69 |
| 21700-4 | RTEP-10-4TW | 10.19 | 5.59 | -40° to 1000° | 4.59 |
| 21700-5 | RTEP-6-4TW | 6.44 | 1.75 | -40° to 200° | 4.69 |
| 21700-6 | RTEP-8-4TW | 8.69 | 4.00 | -40° to 400° | 4.69 |
| 21700-7 | RTEP-11-4TW | 11.69 | 7.00 | -40° to 1000° | 4.69 |
| 21700-8 | - | 8.69 | 2.00 | - | 6.69 |
Type 23700 Resistance Temperature Detector
Nickel Element Ω=0.0068Ω/Ω/°C
Resistance 120.00 ± 0.79Ω @32°F, 200.76Ω@212°F
Maximum Connection Head Temperature Range: 300°F
| PN | MIL-T-24388B Classification | "L" Length | "A" Length | Temperature Range °F |
Insertion Length(inches) |
|---|---|---|---|---|---|
| 23700-1 | RTEN-4-2TW | 4.44 | 1.75 | -40° to 200° | 2.69 |
| 23700-2 | RTEN-6-2TW | 6.69 | 4.00 | -40° to 400° | 2.69 |
| 23700-3 | RTEN-9-2TW | 9.69 | 7.00 | -40° to 400° | 2.69 |
| 23700-4 | RTEN-10-4TW | 10.19 | 5.59 | -40° to 400° | 4.59 |
| 23700-5 | RTEN-6-4TW | 6.44 | 1.75 | -40° to 200° | 4.69 |
| 23700-6 | RTEN-8-4TW | 8.69 | 4.00 | -40° to 400° | 4.69 |
| 23700-7 | RTEN-11-4TW | 11.69 | 7.00 | -40° to 400° | 4.69 |
Type 27700 Thermocouple JQ TCEK
Type K Thermocouple
ANSI-C96.1
Temperature Range: -40°F to 1500°F
| PN | Classification per MIL-T-24388B (ships) |
"L" Length(inches) | "A" Length(inches) | Temperature Range °F |
Max Connection Head Temp °F |
Thermowell Insertion Length per MIL-T-24388 (inches) |
|---|---|---|---|---|---|---|
| 27700-1 | TCEK-4-2TW | 4.44 | 1.75 | -40° to 200° | 300° | 2.69 |
| 27700-2 | TCEK-6-2TW | 6.69 | 4.00 | -40° to 400° | 300° | 2.69 |
| 27700-3 | TCEK-9-2TW | 9.69 | 7.00 | -40° to 1500° | 500° | 2.69 |
| 27700-4 | TCEK-10-4TW | 10.19 | 5.59 | -40° to 1500° | 500° | 4.59 |
| 27700-5 | - | 15.37 | 7.00 | -0° to 1500° | 500° | 8.37 |
| 27700-6 | TCEK-6-4TW | 6.44 | 1.75 | -40° to 200° | 300° | 4.69 |
| 27700-7 | TCEK-8-4TW | 8.69 | 4.00 | -40° to 400° | 300° | 4.69 |
| 27700-8 | TCEK-11-4TW | 11.69 | 7.00 | -40° to 1500° | 500° | 4.69 |
| 27700-9 | - | 18.62 | 7.00 | -40° to 1500° | 500° | 11.625 |
| 27700-10 | - | 18.38 | 1.75 | -40° to 1500° | 500° | 16.63 |
| 27700-11 | - | 18.625 | 6.25 | -40° to 1500° | 500° | 12.375 |
Dimensional Drawing
“L” =Length when installed into thermowell
