Presentations
COMPARING THE TGM TO OTHER PRODUCTS
| FEATURE | TELOSENSE TGM | MDA PAPER TAPE | GAS DETECTORS |
|---|---|---|---|
| SPEED OF DETECTION | 2 SECONDS PER PORT SCAN RATE TO 1/4 TLV OR LESS | 30 TO 60 SECONDS PER PORT TO REACH 1/2 TLV | 30 TO 60 SECONDS TO 1 TLV; LONG TIME FOR LOW PPB LEVELS |
| LONG TERM CALIBRATION STABILITY | NO CHANGE IN CALIBRATION OVER MANY MONTHS | CHANGES EACH TIME A TAPE CASSETTE CHANGES | DEGRADES OVER SHORT PERIOD OF USE - MUST BE TESTED MONTHLY |
| SELF-TESTING: YOU “KNOW IT IS WORKING” | “BLUE LED” VERIFIES CALIBRATION AND RESPONSE. TGM CHECKS FOR FAULTS | CHECKS FOR FAULTS BUT “CAN NOT VERIFY RESPONSE” OF THE PAPER TAPE | CHECKS CABLE FAULT BUT “YOU NEVER KNOW IT IS REALLY WORKING" |
| CALIBRATING WITH A GAS STANDARD | CALIBRATES AT ONE PORT WITH ONE GAS TYPE. VALID FOR ALL PORTS/GASES | SHOULD CALIBRATE EACH PORT. THE RESPONSE IS FLOW DEPENDENT | MUST LOCATE AND CALIBRATE EVERY GAS DETECTOR |
| COST EFFICIENCY: CAPACITY FOR GASES AND IDENTIFICATION OF GAS TYPE | UP TO 3 GASES PER PORT: METAL HYDRIDES, NF3, NH3, POCl3, DCS, ETC. + GAS DETECTOR INTERFACE | NO IDENTIFICATION OF GAS TYPES. LIMITED DETECTION WITH ONE TAPE. NF3 IS A PROBLEM | A DETECTOR IS NEEDED FOR EACH GAS TYPE AND FOR EACH POINT. LIMITED GAS IDENTIFICATION |
| COST EFFICIENCY: CAPACITY FOR PORTS + DETECTORS | 20 PORTS PLUS 32 GAS DETECTORS =52 LOCATIONS | 16 PORTS WITH 1 OR 2 TAPE HEADS PLUS H2 DETECTORS | 20 TGM PORTS WITH UP 3 GASES/PORT CAN EQUAL UP TO 60 GAS DETECTORS |
| COST OF OWNERSHIP: SERVICE ATTENTION AND PARTS COST | TWICE PER YEAR. PM PARTS COST ~ $900/YEAR | REPLACE EACH TAPE MONTHLY. SERVICE QUARTERLY. EACH TAPE ~ $2,000/YEAR | CALIBRATE EVERY 1-3 MONTHS; REPLACE EACH SENSOR HEAD EVERY 1-2 YEARS AT~ $300/SENSOR |