RKI Instruments SDM-2012 PC Controlled Configuration - Manual (Page 57)

Bump Testing a GX-2012 • 52
sensor installed cannot be fully bump tested or calibrated automatically because they
will always need a gas cylinder change during bump testing or calibration. The PC
Controller Program will bump test or calibrate only the standard 3 sensors (catalytic
LEL, O
2
, and CO) if Auto Bump Test or Auto Calibration is selected. RKI Instruments,
Inc. recommends that you manually bump test or calibrate any Gas Tracers with a
%volume sensor installed using the PC Controller Program as described in “Bump
Testing a Gas Tracer” on page 77 and “Calibrating a Gas Tracer” on page 95.
To automatically bump test or calibrate an instrument or instruments:
1. Be sure that Auto Bump Test or Auto Calibration are selected in the
Configuration Window. See “Setting Up the PC Controller Program” on
page 32 for instructions.
2. Verify that all of the bump test and/or calibration parameters are set correctly.
See “Setting Up the Configuration” on page 32 for instructions.
3. Verify that the appropriate calibration gas cylinder or cylinders is connected to
the appropriate manifold line.
4. Ensure that the gas out to instrument line is connected to the inlet of the
instrument.
5. Establish a connection between the SDM-2012, instrument, and the PC
Controller program as described in “Connecting Instruments to the PC
Controller Program” on page 43.
6. The bump test or calibration will begin 1 minute after the last connected
instrument’s instrument information download is complete.
7. During an automatic bump test, if the bump test fails, a calibration is
immediately performed.
8. If Auto Bump Test and Auto Calibration are both selected, the calibration will
begin 1 minute after the bump test has finished.
Bump Testing a GX-2012
The following instructions apply to GX-2012s with one or more of the standard four
sensors (catalytic LEL, O
2
, H
2
S, and CO) when you are using only a 3-gas or 4-gas
cylinder. RKI Instruments, Inc. recommends using a 3-gas or 4-gas cylinder instead
of multiple cylinders for calibrating standard instruments. These instructions also
apply to GX-2012s with a %volume sensor installed when you are using a 3-gas or 4-
gas mix and a %volume calibration cylinder. For instructions to bump test a Gas
Tracer, see “Bump Testing a Gas Tracer” on page 77.
The PC Controller Program is capable of performing a bump test both manually and
automatically when a GX-2012 is connected to it. When a bump test is performed, the
PC Controller Program performs an air adjust operation on a GX-2012 and then
applies calibration gas to the instrument. The program analyzes the response results
based on predefined criteria and determines if the GX-2012 passed the bump test.
The criteria that the PC Controller Program uses to determine if the GX-2012 passes
a bump test, whether the Bump Test button is active, and whether or not the PC
Controller Program automatically performs a bump test if it is due on a connected