Rev. 2.0
3
2. Specifications
Size:
2.66 x.1.40 x 0.61 inches (67.6 x 35.6mm x15.5 mm)
Weight:
< 1 ounce (28 grams)
Range:
5-500 PPM CO
Response time:
< 90 seconds to 90%
Operating
temperature:
32-105 F, 0-40 C displayed; readings automatically
compensated.
Pressure effects:
Reading decreases with decreasing pressure, down to 70%
at 10,000 ft
Humidity limits:
15-85% RH, non-condensing
Alarms:
(82 dB buzzer @ 24
in, LED, Backlight,
Vibrator)
Optional first alarm at or above 50 PPM.
Second alarm at or above 125 PPM.
Third alarm at or above 400 PPM.
Hourly warning when CO above the 8-Hour 25 PPM ACGIH
TWA.
Temperature above 50
o
C / 122
o
F: “HOT” displayed
Temperature below 0
o
C / 32
o
F: “COLD” displayed
Low battery warning: “BATT” displayed
Sampling method:
Gaseous diffusion.
Interferences:
None significant, except hydrogen.
Periods of Operation:
“12-Hour” and “Always On”
Display:
Digital LCD with backlight in increments of 1 ppm.
User interface:
Single button operation.
Dosimetry
(12-Hour Detection
period only):
Calculates and records: “MAX” maximum exposure (ppm),
“TIME” time of max. exposure (minutes since turned on),
“TE” total exposure in ppm-hours,
8-hour “TWA” time weighted average.
Tests:
Self-Test on startup checks circuitry, alarms, battery, and
operating temperature. Does not check sensor.
Calibration:
Recommended at least 1x per year, or whenever accuracy
of reading is critical.
Sensor:
Transducer Technology T-Series electrochemical.
Battery information:
Battery check on startup and during operation. User
replaceable CR2450 coin battery.
Warranty:
Instrument, including sensor: Two years.
