Ashcroft ATE-100 Handheld LCD Digital Calibrator - Manual (Page 24)

- 24-
Revision 4.6 3/2004
ENT
The HHC will respond by displaying:
Enter Input Zero
.000000
Step 4 Using the number keys enter the lowest calibra-
tion point for the device to be tested.
For example:
For a 0-100 inH
2
O range instrument enter zero.
For a 3-15 psi transmitter enter 3.
For a -5 to 0 to + 5 inH
2
O transducer enter -5.
For a 0-200 degree RTD enter 0
When the desired “zero” value has been entered the
display will look as follows for the testing of a 0-100 in
H2O transducer.
Enter Input Zero
.000000
If an incorrect value is entered use the CE key to clear
the entry and re-key the zero value.
With the desired “zero” value displayed press the
enter key.
ENT
The HHC will respond by displaying:
Enter Input FS
.000000
Step 5 Using the number keys enter the full scale
range (F.S.) of the device to be calibrated. For our
example of a 0-100 in H2O range instrument the display
will look as follows:
Enter Input FS
100
Step 6 With the desired input full scale displayed press
the enter key.
ENT
The HHC will respond by displaying:
Enter output Zero
0.0000
As with input zero, the output zero is the lowest output
the device being calibrated will produce.
For example:
For a 0-10 Vdc output device enter zero.
For a 4/20mA output device enter 4.
For a 1-5 Vdc output device enter 1.
Step 7 With the desired output “zero” keyed in and
displayed press the enter key.
ENT
The HHC will respond by displaying:
Enter output FS
0.0000
Step 8 Using the number keys enter the full scale
output of the device being calibrated. For a 0-10 Vdc
output device the display will look as follows:
Enter output FS
10
Step 9 With the desired full scale output displayed
press the enter key.
ENT
The HHC will respond by displaying the following:
Device type
I/P P/I P/P P/E
Using the left/right arrow keys select the appropriate
device type where:
I/P is a current to pressure device
P/I is a pressure or temperature to current device
P/P is a pressure to pressure device
P/E is a pressure or temperature to voltage
device
In this case we are testing a 0-100 inH
2
O range trans-
ducer that produces a 0-10 Vdc output from zero to
F.S. Therefore, the appropriate selection is P/I and the
display will look as follows:
Device type
I/P P/I P/P P/E
Step 10 With the desired device type flashing press the
enter key.
ENT
At this time the HHC will return to basic measurement
activities.
Section 13.2 Use of the Percent Function
Note: The HHC must be set up so that the desired Quick
Select module is active and so that the desired electronic
measurement is displayed prior to entering the % mode.
Consult Sections 5.0 Port Select and 7.0 Current & Volt-
age Measurements for setup details.
Step 1 With the percent function set up, press the % key
on the keypad of the HHC to activate the percent mode