Sample Mode - Ametek BROOKFIELD JEROME 631-X User Manual

Sample Mode

This is the standard operation mode and is used for optimum accuracy.
• Press the power ON button.
➢ The LCD displays 000.
➢ Disregard the LCD's initial momentary readings.
➢ Recharge or replace the battery pack if the LO BAT indicator REMAINS ON, see page 17
and/or page 21 if necessary.
• Allow a 1-minute warm up before beginning the next step to ensure the instrument's
electronics have stabilized.
• Press the SAMPLE button.
➢ During the sampling cycle, the bar (or bars) shown on the LCD indicates the current
percentage of sensor saturation. (Refer to "LCD Codes" on page 10 for code
descriptions.)
➢ The length of the sample cycle depends on the concentration of hydrogen sulfide.
RANGE CONCENTRATION RESPONSE TIME
0 0.001 to 0 .099 ppm
1 0.10 to 0.99 ppm
2 1.0 to 9.9 ppm
3 10 to 50 ppm
• At the end of the sampling cycle, read the LCD.
➢ The number shown on the digital meter is the hydrogen sulfide concentration in ppm.
➢ As the instrument auto-ranges, the decimal point moves to the correct position to show the
concentration.
➢ The value remains displayed until the next sample is taken. The digital meter will then
automatically zero before displaying the next sample value.
➢ When elevated readings are detected:
 Confirm the reading by taking an additional sample.
 Install the zero-air filter and verify that the readings reduce to zero or very near zero.
 Remove the filter and sample the location again to verify that elevated readings do
exist.
➢ When the sensor is completely saturated, the LCD displays .8.8.8 instead of a value. No
further operation is possible until sensor regeneration is performed. (Refer to "Sensor
Regeneration" on page 12.)
• Press the power OFF button when not in use.
®
Note: The Jerome 631-X operates approximately six (6) hours on a fully charged battery.
Customer Service 800-528-7411 or 602-470-1414
ACCURACY at MID-RANGE
30 Seconds ± 0.003ppm at 0.050ppm
25 Seconds
16 Seconds
13 Seconds
± 0.03ppm at 0.50ppm
± 0.3ppm at 5.0ppm
± 2ppm at 25ppm
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