TPI 777, Manual

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General Description
The TPI 777 is a rugged personal gas monitor. Preset alarms
provide visual, audible and vibration alerts for low and high alarm
conditions. Built-in "Time Weighted Average" (TWA) and "Short
Term Exposure Limit" (STEL) alarms provide a greater margin of
safety for the user. A custom display provides easy to read
information including gas concentration and low battery indication.
(See Figure 1)
FUNCTION INDICATORS
•
blinking = Low Battery
•
High/Low Alarm Set Points:
•
TWA/STEL Alarms:
PHYSICAL SPECIFICATIONS
Operational Temp: -4 to 104° F (-20 to 40° C)
Humidity: 15-90% RH (Non-condensing)
Response Time: T90 < 30 seconds
Alarms:
Sound: 80 Db @ 12" (30cm)
Sight: Display Alerts via LEDs
Touch: Vibration
Power Source: 3.6V Lithium Battery
Size: 3.81" x 2.31" x 0.8" (9.67 x 5.87 x 2 cm)
Weight: 3.6 oz. (105 g)
Battery Life: 2+ Years
Sensor: Electrochemical
Construction: Impact resistant housing
Belt clip and hanging loop
3
Figure 1: Custom Display