IAS-TG30 Glovebox & Process Tritium Monitor — Leak-Tight, All-Metal Chamber
A process tritium monitor for glovebox atmospheres and process gas lines, where leak-tightness matters. The 3 L chamber and gas path are laser-welded metal with ceramic-brazed feedthroughs and contain no organic materials.
Quick answer
IAS-TG30 is a process monitor (sealed, all-metal) in the IAS-T tritium monitoring series from Iodine Air Systems. It measures tritium from 3.7 × 10⁴ to 3.7 × 10¹¹ Bq/m³ (1 µCi/m³ to 10 Ci/m³). US 120 V / 60 Hz version; calibration certificate and certificate of conformance included; price on quotation.
What the IAS-TG30 does
Monitoring the gas inside a tritium glovebox or a process line is a different problem from monitoring room air. The instrument becomes part of the containment boundary. Concentrations can be far higher, and the gas may be humid or inert. The IAS-TG30 reads up to 3.7 × 10¹¹ Bq/m³ (10 Ci/m³); confirm that covers your box inventory.
In the IAS-TG30, the ionization chamber and gas path are laser-welded and metal-sealed. The signal electrode is insulated with ceramic-brazed feedthroughs, and there is no organic material inside the chamber, so there are no organic materials to outgas or absorb tritium, and the metal gas path minimizes uptake. Chamber and gas-path leak rate is ≤ 1 × 10⁻⁹ Pa·m³/s. A gold-plated chamber is available as an option.
The instrument connects with VCR or compression fittings. It is rated for an operating environment of −10 to 85 °C at up to 100% humidity, and reports over Ethernet or RS-485 (Modbus).
Key features
- 3 L wire-wall ionization chamber; gold-plated option
- All-metal, laser-welded chamber and gas lines with metal seals
- Ceramic-brazed, insulated signal feedthrough; no organics in the chamber
- Leak rate ≤ 1 × 10⁻⁹ Pa·m³/s (≈ 1 × 10⁻⁸ mbar·L/s)
- VCR or compression-fitting connections
- Operating environment −10 to 85 °C, < 100% RH
- Ethernet or RS-485 (Modbus); RS-232 available
- Enclosure ≤ 490 × 485 × 240 mm (mounting confirmed at quotation)
IAS-TG30 specifications
| Detector | Wire-wall ionization chamber, 3 L effective volume (gold-plated option) |
| Range (SI) | 3.7 × 10⁴ to 3.7 × 10¹¹ Bq/m³ |
| Range (US units) | 1 µCi/m³ to 10 Ci/m³ (10⁻⁶ to 10 µCi/mL) |
| Range as HTO DAC multiples | 0.05 DAC to 500,000 DAC (HTO DAC 2E-5 µCi/mL) |
| Leak rate (chamber and gas path) | ≤ 1 × 10⁻⁹ Pa·m³/s (≈ 1 × 10⁻⁸ mbar·L/s) |
| Construction | Laser-welded chamber and tubing, metal seals; ceramic-brazed electrode feedthrough; no organic materials in chamber |
| Sample flow | 1–9 L/min |
| Gas connections | VCR or compression fittings |
| Operating environment | −10 to 85 °C (14–185 °F); < 100% RH; 1 atm |
| Communication | Ethernet or RS-485; Modbus/TCP or Modbus (RS-232 available) |
| Power | 120 V AC / 60 Hz (US version); 220–230 V / 50 Hz export version; < 100 W |
| Dimensions | ≤ 490 × 485 × 240 mm (19.3 × 19.1 × 9.4 in) |
Specifications are nominal manufacturer values and may change. Confirmed values are stated on the quotation and data sheet. DAC multiples use the tritiated-water DAC of 2 × 10⁻⁵ µCi/mL (7.4 × 10⁵ Bq/m³) from 10 CFR 20 Appendix B and 10 CFR 835 Appendix A.
Typical applications
- Glovebox atmosphere monitoring (air, nitrogen, argon, helium)
- Tritium storage bed and fuel-cycle process lines
- Detritiation system inlet and outlet monitoring
- Secondary containment and interspace monitoring
- Installations with ambient temperatures up to 85 °C (confirm process-gas temperature at quotation)
US supply, documentation and quality
Iodine Air Systems supplies the IAS-T series as an authorized distributor. Instruments are built by our manufacturing partner to our US configuration. Each quotation states the exact deliverables, lead time and country of origin.
- US power version: 120 V AC / 60 Hz for mains-powered models (export versions for 220–230 V / 50 Hz).
- Factory calibration certificate with every instrument, stating the calibration method and reference standards.
- Certificate of conformance and product certification documents supplied with the quotation.
- Specifications in SI and US units, with ranges stated in µCi/mL and in multiples of the tritium DAC (10 CFR 20 Appendix B / 10 CFR 835 Appendix A), so they drop straight into your procedures.
- Commercial-grade supply. Instruments are supplied as commercial-grade items, not as 10 CFR 50 Appendix B / NQA-1 safety-related items. For safety-related use, we support the purchaser's commercial-grade dedication with critical-characteristic data and test records.
- Price on quotation. Price depends on model, options, quantity, documentation package and destination.
Compare with related IAS-T models
Wall-Mount Process Tritium Detector
Process detector (wall-mount, PLC-ready)
View IAS-TG10 →IAS-TD20Tritium Ion Chamber Detector Module (OEM)
OEM detector module
View IAS-TD20 →IAS-TS40HT / HTO Tritium Speciation Monitoring System
Multi-form (HT/HTO) monitoring system
View IAS-TS40 →See the full IAS-T tritium monitor range or use the tritium DAC converter to check a reading against your limits.
IAS-TG30 FAQ
Can the IAS-TG30 monitor an argon or helium glovebox?
Yes. Ion-chamber response depends on the gas, so calibration factors are stated for the gas you specify. Tell us the glovebox atmosphere when you request a quote.
Why is leak rate important for a glovebox tritium monitor?
A process monitor becomes part of the containment boundary. The IAS-TG30 chamber and gas path are rated at ≤ 1 × 10⁻⁹ Pa·m³/s and are all-metal with no organics, which keeps leakage and tritium uptake low.
What connections does the IAS-TG30 use?
VCR or compression fittings, specified at order.
What is the difference between the IAS-TG30 and the IAS-TG10?
Both are sealed, all-metal process monitors. The IAS-TG30 is a 3 L rack instrument. The IAS-TG10 is a compact 1 L wall-mounted detector with its own electrometer, rated above 5 atm, that connects to a PLC over one cable.
How much does the IAS-TG30 cost?
The IAS-TG30 is priced on quotation. The price depends on options, quantity, power version, documentation package and delivery destination. Send the quote form on this page or email sales@iodineairsystems.com, and we reply with price, lead time and the list of documents supplied.
Is the IAS-TG30 available for US 120 V power?
Yes. Mains-powered IAS-T models are available in a 120 V AC / 60 Hz US version, and in 220–230 V / 50 Hz for export.
What documents come with the IAS-TG30?
A factory calibration certificate, a certificate of conformance, product certification documents and an English operating manual. A commercial-grade dedication support package is available for purchasers who dedicate the instrument for safety-related use.
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