7.11.2.1
Carrying out a manual EPA SPAN test
Material required
Characteristics
Test gas cylinders according to the applicable EPA
Guideline (N2 and test gases)
The concentration depends on the upper measuring
range values to be tested
Adjustable pressure regulator for zero gas and SPAN
gas
With adjustable pressure valve
1/8" line with Swagelok screw fitting
Length: Approx. 1.5 m
Pressure gauge
•
An absolute pressure of 900–1100 mbar (equiv‐
alent to the pressure in the duct)
•
Resolution: 0.5 mbar
•
1/8" Swagelok connection
P
1
9
8
7
6
4
2
3
à
á
5
ß
â
GM901
Operation
Service
Warning
Malfunction
Service
Control Unit
Figure 21: Equipment for the manual SPAN test
1
Test gas
2
Pressure gauge 1
3
Pressure regulator
4
Shut-off valve
5
Pressure gauge 2
6
Measuring probe
7
Sender-receiver connection
8
2 m line (CAN bus and power supply)
9
115 V / 230 V
ß
Temperature sensor
à
Control unit
á
Analog/status signals
â
115/230V
COMMISSIONING
7
8008932/16YT/V4-0/2022-02 | SICK
O P E R A T I N G I N S T R U C T I O N S | GM901-02
43
Subject to change without notice
