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Isotech
Isotech TRU Model 938 Thermocouple Reference Unit
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Isotech TRU 938: 0 °C or 45–70 °C reference; ±0.03 °C; to 100 junctions. RFQ.
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Key parameters
Approvals
Solid-state thermocouple cold-junction reference for laboratory use
Operating Temperature
0 °C or elevated reference 45 °C to 70 °C
Ambient Range
2 °C to 65 °C
Stability
±0.03 °C; loading errors removable via controller offset
Stabilising Time
10 minutes from 44 °C
Capacity
Block B1: up to 36 junctions (6×6.2 mm + 4.2 mm pockets, 130 mm deep); Block B2: up to 100 junctions (8×8.2 mm + 4.2 mm, 76 mm deep)
Fits laboratory thermocouple referencing where you need an Isotech TRU Model 938—solid-state Peltier ice-point or elevated (45–70 °C) reference with ±0.03 °C stability, 10-minute stabilising time, and capacity up to 36 or 100 junctions by block.
Key advantages
- Modes — 0 °C or elevated 45–70 °C
- Stability — ±0.03 °C
- Capacity — Up to 36 (B1) or 100 (B2) junctions
- Alarm — Relay if reference drifts >0.2 °C
- Form — Solid-state Peltier reference
Typical applications
- Lab ice-point reference.
- Elevated CJC.
- High-capacity TC referencing.
Selection guide
- Block B1 vs B2
- 0 °C vs elevated
- Supply voltage
Common mistakes
- Ignoring loading errors.
- Wrong ambient 2–65 °C.
- Alarm relay wiring missed.
When to RFQ / what to tell us
- Block/mode/voltage.
- Quantity, ship-to.
Request a Quote · Get selection help
Specs
| Spec | Value |
|---|---|
| SKU | 45110 |
| Brand | Isotech |
| Model | TRU Model 938 Ice Point Reference |
| Product type | Ice Point Reference |
| Operating temperature | 0 °C or elevated reference 45 °C to 70 °C |
| Ambient range | 2 °C to 65 °C |
| Stability | ±0.03 °C; loading errors removable via controller offset |
| Stabilising time | 10 minutes from 44 °C |
| Capacity | Block B1: up to 36 junctions (6×6.2 mm + 4.2 mm pockets, 130 mm deep); Block B2: up to 100 junctions (8×8.2 mm + 4.2 mm, 76 mm deep) |
| Alarm | Activates if reference deviates more than 0.2 °C; non-latching relay 5 A 240 V |
| Power | 100 W typical; 100–130 or 208–240 VAC 50/60 Hz |
| Special features | Solid-state Peltier ice-point / elevated reference; laboratory or high-capacity blocks |
Documents
FAQ
Q: Stability? A: ±0.03 °C.
Q: Modes? A: 0 °C or elevated 45–70 °C.
Q: What should I send for a quote? A: Block/mode/voltage, quantity, ship-to.
Links
| Parameter | Value |
|---|---|
| Approvals | Solid-state thermocouple cold-junction reference for laboratory use |
| Operating Temperature | 0 °C or elevated reference 45 °C to 70 °C |
| Ambient Range | 2 °C to 65 °C |
| Stability | ±0.03 °C; loading errors removable via controller offset |
| Stabilising Time | 10 minutes from 44 °C |
| Capacity | Block B1: up to 36 junctions (6×6.2 mm + 4.2 mm pockets, 130 mm deep); Block B2: up to 100 junctions (8×8.2 mm + 4.2 mm, 76 mm deep) |
| Alarm | Activates if reference deviates more than 0.2 °C; non-latching relay 5 A 240 V |
| Power | 100 W typical; 100–130 or 208–240 VAC 50/60 Hz |
| Dimensions | H 228 × W 253 × D 148 mm |
| Weight | 5.5 kg |
| Special Features | Solid-state Peltier ice-point / elevated reference; laboratory or high-capacity blocks |
| Accessories | Optional UKAS-calibrated PRT 935-14-54 (B1) or 935-14-55 (B2); fan filter 935-17-32 |