Dover OPW SiteSentinel iTouch M1500 - Page 124

Doc. No.: M1500 Rev. 5
Page 124 of 127
• 67733 Gross Point Road 900 Santa Fe Dr.
Doc. No.: M1500, Rev. 5
Page 124 of 127
67733 Gross Point Road 900 Santa Fe Dr.Doc. No.:
M1500, Rev. 5
Page 124 of 127
• 67733 Gross Point Road 900 Santa Fe Dr.
•
Example of a single 924B probe connected to a single position on the Associated Apparatus:
EXAMPLE:
Example Associated Apparatus 14.28V (Uo), 361mA (Io), 6.4uF (Co), 2,100uH (Lo)
Cable 1,000 feet, 60pF/ft, 0.2uH/ft = 0.060uF (60,000pf), 200uH
924B entity parameters
Associated Apparatus
14.9V (Ui)
≥
14.28V (Uo)
362mA (Ii)
≥
361mA (lo)
1.3W (Pi)
≥
(14.28*0.361)/4 = 1.29W (Po)
0uF (Ci)+0.060uF(Ccable)=0.060uF
≤
6.4uF (Co)
363uH (Li)+200uH (Lcable) = 563uF
≤
2,100uH (Lo)
If the above statements are true (which they are) then it is safe to connect.
Example of 4 x 924B probes connected to a single position an the Associated Apparatus:
EXAMPLE:
Example Associated Apparatus 14.28V (Uo), 338mA (lo), 16.1 uF (Co), 2,240uH (Lo)
Cable 2,000 feet, 60pF/ft, 0.2uH/ft = 0.120uF (120,000pf), 400uH
924B entity parameters
Associated Apparatus
14.9V (Ui)
≥
14.28V (Uo)
362mA (Ii)
≥
338mA (lo)
1.3W (Pi)
≥
(14.28*0.338)/4 = 1.21W (Po)
0uF (Ci)+0.060uF (Ccable)=0.060uF
≤
16.1uF (Co)
363uHx4(Li)400uH (Lcable)= 1,852uF
≤
2,240uH (Lo)
If the above statements are true (which they are) then it is safe to connect.
5. Associated apparatus must be installed in accordance with its manufacturer's control drawing and Article
504 of the National Electrical Code (ANSI/NFPA 70) for installation in the United States, or Section 18
of the Canadian Electrical Code for installations in Canada. other local codes, as applicable.
6. When required by the manufacturer's control drawing, the associated apparatus must be connected to
a suitable ground electrode per the National Electrical Code (ANSI/NFPA 70), the Canadian Electrical
Code, or other local installation codes as applicable. The resistance of the ground path must be less
than 1 ohm7
7. Associated apparatus must not be used in combination unless permitted by the associated apparatus
certification.
8. Control equipment must not use or generate more than 250Vrms or dc with respect to earth.