Flanged Stainless Steel with 1 Mounting Hole NTC 231.5K Ohm 250C High Temperature Probe Assembly
Unit: mm
- NTC Thermistor: Glass encapsulated NTC thermistor R25: 231.5KΩ±2% Beta value B(25/85): 4240K
- Stainless Steel Case, 304, Φ4X25+22.5X12mm.
- Teflon Tube, 14LX60 mm, 260C, transparent color.
- Wire Cable: UL10362, 300V, 250C, black
Glass encapsulated thermistor, housed in stainless steel sheath, with rectangle flange, round tip and 1 mounting hole. For temperature measurement upto 250C. Reliable operation in hot, damp and fatty air. Applicable for industrial process control, heater, oven, electric cooker, roaster, toaster, etc.
Resistance at 25C R25: 231.5K ohm+/-2%,
Beta Value B(25/85): 4240K
Dissipation Factor: 5 mw/℃ min.
Thermal Time Constant (in water): 15 seconds max.
Insulation resistance: 500VDC, 100 MΩ
Voltage withstanding: 1800VAC, 1mA, 2 seconds
Operating temperature range: -30 to +250C
Storage temperature: -10℃～+40℃, relative humidity ≤75% RH
| Test Item | Test Condition | Performance Request |
|---|---|---|
| Lead Wire Tensile Pulling | Applying force 9.8N（1KGF）along lead wire direction, for 1 minute. | No cracks in the resin and wire bonding, No visible damage |
| Falling down | Falling down from 1 meter high to 10mm thick oak wooden board, 5 times. | No cracks in the resin and wire bonding, No visible damage |
| Test Item | Standard | Test Conditions | ΔR25/R25 (typical) | Remarks |
|---|---|---|---|---|
| Low temperature storage | IEC 60068-2-1 | Storage at low category temperature. Temperature: -30 oC Time: 1000 hours | ≤3% | No visible damage |
| Storage in dry heat | IEC 60068-2-2 | Storage at upper category temperature. Temperature: 200 oC Time: 1000 hours | ≤3% | No visible damage |
| Storage in damp heat, steady state (Humidity test) | IEC 60068-2-3 | Temperature: 40oC, Humidity:90%-95% RH, Duration:1000 hours |
≤3% | No visible damage |
| Rapid temperature cycling | IEC 60068-2-14 | 1. -30C/30 minutes 2. 30C/5minutes 3. 200C/30 minutes 4. 30C/5minutes. Number of cycles: 5 Cycles |
≤3% | No visible damage |
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