Stationary Photoionization Detector SPID2
User Manual
SPID2 - User Manual (en) - 1.11.docx
Analytical Control Instruments GmbH, Volmerstraße 9A, D-12489 BERLIN, Germany, www.aci-berlin.de
Version 1.11
Page 24 of 60
6.2.2.
Response Factor
Based on SPAN Gas [Isobutene] calibration for correct reading of other VOCs it is necessary to set a
response factor. This factor reflects the sensitivity of the known VOC compared with the calibration gas
and can be more or less than 1. A list of predefined response factors based on official literature and
custom factors are stored in the device and can be selected by user. Additionally the user got the
possibility to specify a list of up to 100 particular response factors by an additional configuration
software via PC (optional communication cable required). After selecting a response factor, the gas
name will be shown on the display.
List of Response Factors for PID with 10.6 eV Lamp:
List Item
Gas Name
Response Factor
1
ISOBUTENE
1.00
2
BENZENE
0.55
3
.
.
Custom
0.50
.
.
10
Custom
5.00
The list of response factors are only available if
Standard Calibration
is selected.
How To
–
Select Response Factor
1.
Go to the Instrument Menu and select MEAS CONFIG
2.
Select “run” to start
measurement configuration
3.
Select Calibration
, choose STANDARD and “accept”
4.
Select Response and modify response setting
Response Screen
List Item
Gas Name
CAS Number
(Identification)
Response Factor
