GMI PS200 series User Manual

3-1
MANUAL BUMP TEST
MANUAL BUMP TEST
3.1 BACKGROUND
A bump test verifies sensor response and alarm operation
by exposing the instrument to a known concentration of
gas. The PS200 series of instruments can be bump tested
either manually or automatically (using the Auto Bump /
Calibration Station) .
This chapter details how instruments can be manually
bump tested to ensure the readings provided are accurate
and provide the user with immediate warning of a
potentially hazardous situation.
To facilitate manual bump testing, a test kit (Part No. 64121)
is available and contains the necessary test gas, regulator
and Tygon
®
tubing to ensure a proper bump test is
performed.
CAUTION: When performing a bump test, the
test gas concentration should be high
enough to trigger the instrument’s
alarms. Should any instrument fail a
bump test, then a full calibration must
be performed.
3

GMI PS200 series Specifications

General

Display	LCD
Alarm Type	Audible, visual, and vibration alarms
Resolution	Depends on the gas being detected
Accuracy	Varies depending on the gas and sensor. Consult the specific sensor datasheet.
Operating Temperature	-20°C to +50°C
Power Supply	Rechargeable Li-ion battery
Pump Type	Built-in sample pump