Ashcroft ATE-2 - Handheld Calibrator - Manual (Page 67)

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f. Press left and RIGHT ARROWs to position cursor
beneath desired character
g. Press UP and DOWN ARROWs to increment numeric
characters
h. When the password is correct press ENTER
i. “Calibrate” screen appears
Note: If the incorrect password is entered, the HHC display will
show a message “Bad Cal PW”, and the user will be asked to
Retry or Abort.
j. Press DOWN or UP ARROW key to highlight “System”
k. Press ENTER
l. “System Cal Ch1” screen appears
m. Press DOWN or UP ARROW key to highlight
“Begin Base Cal”
n. Press ENTER
10. The HHC Base Unit will now begin prompting the operator to
apply precision voltage values to specific terminals, data col-
lection will take a few seconds then the HHC will prompt the
operator to move to the next step in the following sequence :
a. Apply 0.00000 volts to calibration module press ENTER
b. Apply 1.00000 volts to calibration module press ENTER
WARNING: Applying more than 1.25 volts to the calibration
module input could cause damage to the input of the HHC
11. When Prompted, set the voltage standard to 0.000 volts then
12.
POWER DOWN THE VOLTAGE STANDARD AND DISCON-
NECT THE VOLTAGE STANDARD FROM THE CALIBRA-
TION MODULE
13. Connect the negative lead of the voltage standard capable of
delivering up to 10.000v DC to the black ringed “COM” input
jack
14. Connect the positive lead of the voltage standard to the red
ringed “0-33Vdc In” jack
15. Power on a voltage standard and allow it to warm up to its
specified accuracy as defined by the manufacturer.
16. The HHC Base Unit will prompt the operator to apply preci-
sion voltage values to specific terminals, data collection will
take a few seconds then the HHC will prompt the operator to
move to the next step in the following sequence :
a. Apply 0.000 volts to the voltage input jacks press ENTER
b. Apply 10.000 volts to the voltage input jacks press
ENTER
17. If using a different voltage standard for 0-30 volt calibration:
POWER DOWN THE VOLTAGE STANDARD AND DISCON-
NECT INPUT TERMINALS
18. Connect the negative lead of the voltage standard capable of
delivering up to 30.000v DC to the black ringed “COM” input
jack
19. Connect the positive lead of the voltage standard to the red
ringed “0-33Vdc In” jack
Cal Password
00000
^
Enter to accept
Esc to cancel
SECTION 15 n. CALIBRATE BASE UNIT CONT.
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