Thermo Ramsey - Hoferick Engineering GmbH

Maintenance
3-12
• ADV displays only if Auto Zero Tracking is enabled. The AZT function
accurately tracks the zero of the scale by calculating an additional zero
constant. The portion of zero due to AZT is not incorporated in the zero
constant, but is shown separately.
When ADV is pressed, the system scrolls between Zero and AZT:
-- MANUAL ZERO --
AZT # ±000000
AZT % ±000000
ENTER EXIT ADV
When the AZT is disaplyed, the ENTER key incorporates the AZT number
into the Zero constant so the displayed AZT number and percentage
changes to zero.
3.10.3 Span Calibration Scroll
Three simulated load calibration options are available:
• R-Cal
• Test Weights
• Test Chains
Test weights or test chains require additional hardware and handling equipment.
The Integrator allows the operator to select which of the three methods is to be
used for routine calibration. The selection is made in MAIN MENU 2, CAL
DATA SCROLL 1.
-- MAIN MENU 2 --
Press MENU for more
ZERO SPAN MAT’L
CAL CAL CAL
3.10.3.1 Auto Span
3.10.3.1.1 Starting an R-Cal Calibration
Use the following steps to begin an R-Cal Calibration:
1. Press SPAN CAL
The following screen displays
AUTO SPAN R CAL
Run belt empty, then
press START
START EXIT MANUAL
Pressing EXIT or MENU returns the screen to MAIN MENU 1.
Maintenance Thermo Fisher Scientific
REC 4175 Rev B