Omega DP461-S - Page 39

6-4
Jumper Positions
6
Figure 6-2. ac-Powered Main Board Jumper Positions S3 and S4
NOTE: S3B should NOT be installed. This jumper is only used when
recalibrating the meter (e.g. an annual, careful performance by the
calibration lab). When this jumper is installed, calibration coefficients can be
changed via digital communications.
Note
☞
DISPLAY
BD
A
C
D
S3
SIGNAL INPUT BD
MAIN BD
J9
J2
J1
J3
AC POWER BD
W1
W3
W2
S4
T1
B
C
A
B
R39
S4A shown in
storage position
S4 On ac-powered units, main board
S4B Installed For 24 Vdc excitation. (S4A located in storage position).
S4A ,S4C Installed For 1.5 to 10 Vdc excitation.
S3 On ac-powered units, main board
S3A Installed Unlocks “MENU” button for programming.
S3B Omit See note below.
S3C Installed Unlocks lockout menu (L1 through L4).
S3D Installed Unlocks Front pushbuttons.