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I. OVERVIEW FOR AMP-HOUR BASED METERS
JP Tech’s Ampere-Hour meters incorporate several screen options in the Menu designed for ease of operation,
information gathering, and programming. All models incorporate displays showing accumulated Ampere-Hours
or Ampere-Minutes (for Amp Hour meters). A resettable Ampere-Hour/Ampere-Minute display is included. In
addition, there is a “Shunt” display menu item used to select shunt size in hours or minutes and the millivolt input
signal (50mV, 60mV, 75mV, or 100mV).
All models use a two (2) button keypad to cycle through the Menu displays available and to set the parameters of
the meter:
♦
The SELECT key, when pressed and released, cycles through the different screens available to the specific
model. In all screens (except the AH TOTAL, SETUP and SPECIAL FUNCTION screens where applicable),
holding the SELECT key for about 3 seconds will enable the flashing cursor; releasing and pressing again will
position the cursor for a change to be made. The SELECT key will not change any existing information. It only
provides a way to move through the menu or move the flashing cursor.
♦
The CHANGE key is used to change a value or option related to the specific display chosen with the SELECT
key (for example RESETTABLE = VALUE and SHUNT SIZE = OPTION). NOTE: Pressing and releasing, at
any time, BOTH the SELECT and the CHANGE keys together will take you back to the AH TOTAL default
screen.
♦
HOW TO ENTER OR CHANGE DATA:
VALUES: RESETTABLE SCREEN: From the AH TOTAL screen, PRESS/RELEASE the SELECT key.
This will bring you to the RESETTABLE screen. To enter any value or reset existing values, PRESS/HOLD the
SELECT key for about 3 seconds until the LEFT MOST DIGIT begins to flash. When it flashes, release the
SELECT key. If you want the digit that is flashing to stay the same, PRESS/RELEASE the SELECT key
ONCE. This will move the flashing cursor over to the right one digit. [This is the method used to move the
flashing cursor over for all screens.]
If you want to change the value of the flashing digit, PRESS/RELEASE the CHANGE key ONCE. Each time
the CHANGE key is pressed and released, the value of the digit increases by one (1) and cycles from 0 through 9.
[This is the method used to change the value of the flashing cursor for all screens.]
Once you have set the values you want, PRESS/HOLD the SELECT key until the flashing cursor disappears
(about 3 seconds).
♦DETAILED EXMPLE:
OPTIONS: SHUNT SIZE: To select the appropriate shunt size and millivolt signal, PRESS/RELEASE the
SELECT key until the SHUNT SIZE screen appears (for the TOTALIZER Model) or PRESS/HOLD the SELECT
key at the SETUP screen (for the PUMP CONTROLLER model) for about 3 seconds until the SHUNT SIZE screen
appears.
To change the SHUNT SIZE option, PRESS/HOLD the SELECT key until the flashing cursor appears just to the right
of the “H”. PRESS/RELEASE the CHANGE key to scroll through the amperage size options available until the
correct one for your rectifier rating is shown. IF the millivolt default setting is correct (most rectifiers use a 50mV
signal), PRESS/HOLD the SELECT key for about 3 seconds until the flashing cursor stops. Your new option has
been set. PRESS/RELEASE the SELECT key at this point takes you to the next screen.
If the millivolt default setting is not correct, once you have located the correct amperage rating option, PRESS/
RELEASE the SELECT key once to bring you over to the millivolt option. PRESS/RELEASE the CHANGE key
will toggle between the 50mV, 60mV, and 100mV option. Once your amperage setting and the millivolt setting is
correct, PRESS/HOLD the SELECT key for about 3 seconds until the flashing cursor stops. You have now locked in
the new setttings.
