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Isotech
Isotech Isorac Model 844 Rack-Mount Thermocouple Reference
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Isotech Isorac 844: rack 0 °C reference; to 100 ch; ±0.1 °C/15° ambient. RFQ.
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Key parameters
Accuracy
±0.1 °C per 15 °C ambient span
Approvals
Approved for power station use (OEM datasheet)
Reference Temperature
Effectively 0 °C via ambient-following reservoir with compensation signal
Temperature Gradient
±0.1 °C between junctions
Stability
±0.05 °C per 1000 hours
Ambient Range
−20 °C to +70 °C
Fits rack-mounted thermocouple referencing where you need an Isotech Isorac Model 844—ambient-following 0 °C compensation reference with up to 100 double-junction channels, ±0.1 °C accuracy per 15 °C ambient span, and 19-inch rack dimensions.
Key advantages
- Reference — Effectively 0 °C via ambient-following reservoir
- Channels — 0 to 100 double-junction
- Accuracy — ±0.1 °C per 15 °C ambient span
- Stability — ±0.05 °C per 1000 hours
- Form — Rack-mount Isorac
Typical applications
- Rack CJC systems.
- Multi-channel DAQ references.
- Control-room TC panels.
Selection guide
- Channel count / depth
- Compensation output type
- AC vs low-level DC power
Common mistakes
- Wrong rack depth for channel count.
- Skipping 10 min stabilisation.
- Ambient outside −20…+70 °C.
When to RFQ / what to tell us
- Channels/output/power.
- Quantity, ship-to.
Request a Quote · Get selection help
Specs
| Spec | Value |
|---|---|
| SKU | 45115 |
| Brand | Isotech |
| Model | Isorac Model 844 Thermocouple Reference Unit |
| Product type | Thermocouple Reference Unit |
| Reference temperature | Effectively 0 °C via ambient-following reservoir with compensation signal |
| Temperature gradient | ±0.1 °C between junctions |
| Stability | ±0.05 °C per 1000 hours |
| Accuracy | ±0.1 °C per 15 °C ambient span |
| Thermocouple capacity | 0 to 100 channels double-junction referencing |
| Compensation output | DC mV, 4–20 mA, or platinum resistance thermometer (order-specific) |
| Power | 10 W typical; 100–130 or 208–240 VAC 50/60 Hz; low-level DC 6 VA option |
| Dimensions | Up to 50 ch: H 255 × W 483 × D 312 mm (17.2 kg); 50–100 ch: H 309 × W 483 × D 312 mm (20.4 kg) |
Documents
FAQ
Q: Form? A: Rack-mount Isorac.
Q: Channels? A: Up to 100.
Q: What should I send for a quote? A: Channels/output/power, quantity, ship-to.
Links
| Parameter | Value |
|---|---|
| Accuracy | ±0.1 °C per 15 °C ambient span |
| Approvals | Approved for power station use (OEM datasheet) |
| Reference Temperature | Effectively 0 °C via ambient-following reservoir with compensation signal |
| Temperature Gradient | ±0.1 °C between junctions |
| Stability | ±0.05 °C per 1000 hours |
| Ambient Range | −20 °C to +70 °C |
| Stabilisation Time | 10 minutes |
| Thermocouple Capacity | 0 to 100 channels double-junction referencing |
| Compensation Output | DC mV, 4–20 mA, or platinum resistance thermometer (order-specific) |
| Power | 10 W typical; 100–130 or 208–240 VAC 50/60 Hz; low-level DC 6 VA option |
| Dimensions | Up to 50 ch: H 255 × W 483 × D 312 mm (17.2 kg); 50–100 ch: H 309 × W 483 × D 312 mm (20.4 kg) |
| Special Features | 19-inch rack-mount ambient referencing; approved for power-station use |