Sartorius Master Pro LP1200S User Manual

W--5032-e03013
Q
U
A
L
I
T
Y
S
Y
S
T
E
M
C
E
R
T
I
F
I
E
D
Q
U
A
L
I
T
Y
S
Y
S
T
E
M
R
e
g
.
N
o
.
1
9
4
4
0
-
0
2
C
E
R
T
I
F
I
E
D
DIN EN ISO 9001
Sartorius AG, Weighing Technology
Sartorius AG, Weighing Technology
Sartorius Master
pro
Serie
Electronic Precision Balances
Service Manual
for LP / LA Models

Sartorius Master Pro LP1200S Specifications

General

Capacity	1200 g
Readability	0.01 g
Pan Size	Ø 120 mm
Calibration	External
Repeatability	0.01 g
Linearity	±0.02 g
Interface	RS-232
Housing	Die-cast aluminum
Display	Backlit LCD
Power Supply	AC Adapter
Operating Temperature	10°C to 30°C
Weighing Units	g, lb, oz, ct

Summary

General Information

Repairs

Prerequisites for working on Sartorius Masterpro Balances.

INPUT Mode

Overview of the User / Service SETUP Program

Service Switches

Activating the Service Mode

Calibration/Adjustment in the Service Mode

Lists available adjustment options within the service mode.

External Linearization

Manual Input of the Linearization Weights

Performing External Linearization

Internal Span Adjustment

External Span Adjustment

External Span Adjustment with Manual Input of Weight Values

How to perform span adjustment with user-defined weights.

External Span Adjustment with Stored Weight

Overwriting the Internal Calibration Weight

reproTEST

Calibration with a User-defined Weight

Servicing the Weighing Cell

Accessing the Main PCB

Opening the Display and Control Unit

Replacing the Built-in Calibration Weight

Calibration/Adjustment

Calibration/Adjustment Sequence

Lists the factors to check and adjust during calibration.

Preload

Checking the Preload

Checking the Preload with the Service Software

Steps to check preload using software.

Adjusting the Preload with a Digital Voltmeter

Steps to adjust preload using a digital voltmeter.

Adjustment Specifications

Adjusting the Preload

Reproducibility

Off-center Load

Checking the Off-center Load

Procedure to check off-center load using test weights at specific positions.

Adjusting the Off-center Load

Masterpro Balances with the Brass System

Masterpro Balances with the Large Single-Casting Block System

Span Accuracy

Checking the Span Accuracy

How to check span accuracy using certified weights.

Linearity

Checking the Linearity

Explains the two procedures for checking linearity based on balance specs.

Checking the Linearity on Balances with Less Than 1,000,000 Digits

Checking the Linearity on Balances with More Than 1,000,000 Digits and PolyRange Balances

Repairing the Balance

Repairing the Weighing System

Repairing the Electronics

Replacing the PCB in the Display and Control Unit

Replacing the Display and Control Unit, Backlighting Module, Keypad Overlay

Replacing the Balance PCB

Masterpro Balances with the Small Single-Casting Block System or Brass System

Masterpro Balances with the Large Single-Casting Block System

Balance Operating Menu Codes Masterpro LP

Balance Operating Menu Codes Masterpro LA

Service Specifications Sheet 1

Service Specifications Sheet 2