Ametek Drexelbrook ThePoint Series, Инструкция по установке и эксплуатации, Страница: 27 / 70

Installation
21
2.10.4 Accessing the Calibration Modes (Continued)
Code Designation - Definition of Modes
L Mode 2: Fixed Cal 2pF: 2pF differential, set point
locked 2pF above starting capacitance
M Mode 7: Manual calibration standard sensitivity
– pots adjusts from 0 to 65pF
G Mode 8: Manual calibration High sensitivity – pot
adjusts from 0 to 27 pF
P Mode 6: Fixed Cal 0.5pF: 0.5pF differential, set point
locked 0.5pF above starting capacitance
Code Designation - Other Calibration Modes
N Mode 1: Auto-Cal 2pF: 2pF differential, set point
varies depending on material
T Mode 3: Auto-Cal 10pF: 10pF differential, set point
varies depending on material
V Mode 4: Fixed Cal 10pF: 10pF differential, set point
locked 10pF above starting capacitance
H Mode 5: Auto-Cal 0.5pF: 0.5pF differential, set point
varies depending on material
Determining the Current Calibration Mode
ThePoint will be shipped in the Auto-Cal mode #2 unless pre-
ordered in a specific mode. To determine if the ThePoint has
been shipped in a mode other than #2, look at the label on the
blue electronic unit. The model number will be 385-0051-012-
0X. The “X” indicates the pre-set mode typically a “2” for mode
#2
If the Mode has been changed after receiving the unit, the
person changing the mode should have made a note of the new
mode on the label inside the lid of the housing.
If there is no note on the lid or if there is a question as to what
the current mode is, the following procedure can be used:
On the topside of ThePoint, temporarily remove the shunt from
the “Time Delay Selection Jumper” (see Fig. 2) and place it on
pins 1 & 2 of the 3-pin connector. The green LED will go out
and the red LED will begin to flash. The number of flashes
indicates which mode the unit is in (1 through 8).
After determining the current mode, replace the shunt on the
“Time Delay Selection Jumper”.