TRITIUM AIR / STACK MONITOR
For Public Release Level and Below
Model # STG-7L2 5 Decade Concentration
Model # STG-7L2A 7 Decade Concentration
FEATURES:
- 3 x 10-10 µCi/cc (10 Bq/m3) in 24 hrs
- 5 x 10-9 µCi/cc (185 Bq/m3) in 1 hr
- 1 x 10-8 µCi/cc (370 Bq/m3) in 20 min
- 1 x 10-7 µCi/cc (3.7K Bq/m3) in 3 sec
- STABLE
- SELF CONTAINED
- RS-232 and Built-In WEB SERVER
For Readout Anywhere in USA
- GIVES CONCENTRATION
- GIVES TOTAL DAILY RELEASE
- INCLUDES REAL-TIME ALARM
- OPTIONAL HARD COPY PRINTER
- DYNAMIC BACKGROUND COMPENSATION
- CAN ACTUATE REMOTE CONTROL
- PARTICULATE + ION INLET FILTERS
- WALL MOUNTABLE
- OPTIONAL
MEASURES TRITIUM AS HTO IN PRESENCE OF OTHER RADIOACTIVE GASSES
(STG-7ATL)
|
Figure 1: STG-7L2
|
GENERAL DESCRIPTION: Technical
Associates' STG-7L2 tritium monitors are sensitive, rugged stack or
effluent monitors for detection and measurement of airborne tritium.
The subtractive balanced chamber electrometer circuit decreases background
effects to negligible levels, and the de-ionized and filtered intake
reduces to negligible levels spuriosity based on smokes, dusts, and
existing ionization in the air. Inlet and outlet hoses allow the return
of monitored air to source: interiors of fume hoods, exhaust stacks,
etc. Related models are available to selectively measure only airborne
HT or only HTO or C-14 or to exclude Ar-41, Ra etc.
All instruments are calibrated at the factory. Calibration
check may be performed in the field with optional license exempt microCurie
level beta source.
TA TECHNICAL
ASSOCIATES
7051 ETON AVENUE * CANOGA PARK, CA 91303
TELEPHONE
(818) 883-7043 * FAX(818) 883-6103
e-mail:
tagold@nwc.net www.tech-associates.com
TRITIUM AIR / STACK MONITOR
For Public Release Level and Below
Model # STG-7L2 5 Decade Concentration
Model # STG-7L2A 7 Decade Concentration
SPECIFICATIONS:
| Model: |
ALL MODELS |
STG-7L2 |
STG-7L2A |
|---|
| |
BOTTOM OF RANGE |
TOP OF STD RANGE |
TOP OF EXTENDED RANGE |
| Rate: |
1 x 10-7 µCi/cc |
1 x 10-3 µCi/cc |
1.0 µCi/cc |
|---|
| |
0.1 picoCi/cc |
999.9 picoCi/cc |
0.999 µCi/cc |
| |
3.7K Bq/m3
|
37M Bq/m3 |
37G Bq/m3 |
| |
|
|
|
| Model: |
STG-7L2 |
|
|
|---|
| |
BOTTOM OF RANGE |
TOP OF RANGE |
INTEGRATION TIME |
| Integrate for |
3 x 10-10 |
1 x 10-6 µCi/cc |
24 Hrs |
|---|
| Determining Concentration: |
(10 Bq/m3)
|
(370 Bq/m3)
|
|
|---|
| |
5 x 10-9
|
1 x 10-5 µCi/cc |
1 Hrs |
| |
(185 Bq/m3)
|
(3.7K Bq/m3)
|
|
| |
1 x 10-8 |
1 x 10-4 µCi/cc |
20 Min |
| |
(370 Bq/m3)
|
(37K Bq/m3)
|
|
Integrate to Determine
- Total Daily RELEASE: Model STG-7L2 automatically multiplies real-time concentration by your average daily stack output and reports total daily release from 0 µCi/day to 1099 Ci/day.
- Background: Essentially eliminated by subtractive balanced chambers.
- Smoke, Dust & Ion Elimination:Filter]and de-ionizer reduce effects to negligible levels.
- Circuit: Electrometer circuit amplifies net difference between a 25 liter tritium internal chamber and internal background chamber of identical size and configuration.
- Detector: Air stream is passed through sample chamber to measure all radioactive gas content; normally as tritium, optionally as other (e.g. Xenon, Krypton, 14CO2,etc.)
- Calibration: Can be calibrated internally with tritium (or HTO) gas, or on a gamma calibration course; or can be checked at a single point with an external (not provided) beta source.
TA TECHNICAL
ASSOCIATES
7051 ETON AVENUE * CANOGA PARK, CA 91303
TELEPHONE
(818) 883-7043 * FAX(818) 883-6103
e-mail:
tagold@nwc.net www.tech-associates.com
TRITIUM AIR / STACK MONITOR
For Public Release Level and Below
Model # STG-7L2 5 Decade Concentration
Model # STG-7L2A 7 Decade Concentration
Level & Data Outputs
- Digital: RS-232 serial output. One count per second per 1 x 10-7 µCi/cc.
- Analog: Optional 0-5 volt or 4-20 mA.
- Built-in Web Server: For Intranet or
Internet readout anywhere in the USA.
- Alarm: High Level: Red flashing light plus
warbling sound.
System Fault Alarm: White steady light.
- Remote Alarm: TTL closure for system failure.
TTL closure for high level alarm.
- Hard Copy: (optional) 32 column digital
printer with RS-232 input. Includes date & time.
- Dimensions: 36" wide x 30"
high x 17.5" deep.
- Shipping Weight:]220 lbs. (100kg)
- Optional Features/Accessories:
Remote alarm (audible & visual) Model RAL-8 (including 25 ft of cable).
Can be used to 500'.
4-20 mA for computer.
Other manual range switching or auto-range features.
Relay contacts for high or low alarm, or both.
Interconnection to/from port of other gas or particulate monitor.
Readout as radioactive gas other than tritium.
TA TECHNICAL
ASSOCIATES
7051 ETON AVENUE * CANOGA PARK, CA 91303
TELEPHONE
(818) 883-7043 * FAX(818) 883-6103
e-mail:
tagold@nwc.net www.tech-associates.com