ADVENTURER+ Service Manual P/N 83020790 A
Ohaus Corporation www.ohaus.com 7
1.3 TOOLS AND TEST EQUIPMENT REQUIRED
In order to properly service the Ohaus Adventurer balances, certain Ohaus special tools and test items are
required in addition to standard electronic tool kits. These items are listed as follows:
1.3.1 Special Tools
1. Test Fixture P/N 923345 for use with Models AR153, AR223, AR323, AR423, AR423D..
2. Test Fixture P/N 923389 for use with Models AR522, AR1502, AR2202, AR3202, AR4202, AR4202D,
AR4201.
3. Test Fixture P/N 476001-02 for use with Models AR64, AR124, AR224.
1.3.2 Standard Tools and Test Equipment
1. Digital Voltmeter (DVM) - Input impedance of at least 10 megohms in the 1 Volt dc position.
2. Nut driver, 6mm
3. Hex or Allen key wrenches, metric.
4. Other assorted hand tools, tweezers, adjustable open wrenches, etc.
5. Soldering iron (50 watt) and solder (rosin core solder, not acid core).
6. Solder remover.
1.4 TEST MASSES REQUIRED
The masses required to test the Ohaus Adventurer balances must meet the requirements of ASTM Class 1
Tolerance. The mass values are listed in Table 1-1.
TABLE 1-1 MASS VALUES
CAPACITY
LINEARITY
MASSES
SPAN
ONLY
MASSES
65g 25g/50g 50g
120g 50g/100g 100g
220g 100g/200g 200g
150g 75g/150g 150g
320g 150g/300g 300g
420g 200g/400g 400g
420g/100g 200g/400g 400g
520g 250g/500g 500g
1500g 750g/1500g 1500g
2200g 1000g/2000g 2000g
3200g 1500g/3000g 3000g
4100g 2000g/4000g 4000g
4200g/1000g 2000g/4000g 4000g
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