ENDEVCO MODEL 136 DC AMPLIFIER
INSTRUCTION MANUAL
IM136
Page 5
2.2
FRONT PANEL DESCRIPTION
Shown in Figure 1 is the Model 136 front panel. The front panel is a Mylar overlay, adhesively
attached to the front panel aluminum plate. The Mylar overlay has cutouts for the six push
buttons, and clear windows for 13 LED's and the 4-digit panel meter. Each push button and
LED are described as follows:
Figure 1 Item 1, is the "Select Function" push button that controls the functions listed below it.
Pressing the Select Function push button scrolls through the LED's. The function selected can
be modified while the LED is flashing, located to the right of the associated function.
Figure 1 Item 2, is the "Select Channel" push button. Pressing this push button sequentially
selects channels one to three, which is used for set up and display of data on the digital panel
meter. The appropriate channel's LED remains illuminated until a different channel is selected.
Figure 1 Item 3, is the LED for channel one of the three channel unit. The LED illuminated
corresponds to the channel that is actively being set up or data displayed on the DPM.
Figure 1 Item 4, is the digital panel meter (DPM). The DPM displays alpha-numerics for the
appropriate "Select Channel" selected and is used to display the channel set up and for actual
data display. The DPM has an accuracy of ± 10%. (See Section 2.4, Operation and sub-
sections contained, for specific push button abilities.)
FUNCTION
OFF
LED
ON
Voltage Exc. (V)
OFF
ON
Sensitivity (mV/ EU)
Edit
Output Scaling (mV/ EU)
Edit
LP Filter ( kHz)
OFF
ON
Auto -Zero
OFF
ON
Shunt Calibration OFF
ON
Monitoring State
OFF
ON
DC Differential
Voltage Amplifier
Model 136
Select Function
Edit
1
2
3
1
2 3
F A U L T
C h an n e l
S e l e c t
Cha n ne l
1
3
2
7
8
9
1 0
1 1
4
5
6
Figure 1
Figure 1 Items 5, 6, 7, and 8 correspond, respectively to the "Up", "Right", "Down" and "Left"
Edit push buttons. These push buttons are used to change the entries on the digital panel
meter and are used in conjunction with the appropriate "Select Function" parameter to be
programmed. (See Section 2.4, Operation and sub-sections contained, for specific push
button abilities.)
Figure 1 Item 9, is one of seven Function parameters LED's that is selectable/programmable.
The flashing LED identifies the function that is actively capable of being set up or modified at
that time.