OHAUS Pioneer PA64, Service Manual

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CHAPTER 1 GETTING STARTED
Ohaus Corporation www.ohaus.com 1-2 Pioneer
™ Balances Service Manual
1.3 TOOLS AND TEST EQUIPMENT REQUIRED
1.3.1 Special Tools
1. Fixture P/N 923345 Corp. Item No. 00923345 for use with 150g to 410g Load Cells.
2. Fixture P/N 923389 Corp. Item No. 00923389 for use with 510g to 4100g Load Cells.
3. Fixture P/N 476001-020 Corp. Item No. 80250050 for use with analytical load cells.
4. Block Style Fixture P/N 476000-030 Corp. Item No. 80250383
1.3.2 Standard Tools and Test Equipment
1. Digital Voltmeter (DVM)
– Input impedance at least 10 megohms in 1 V DC position.
2. Nutdriver, 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 SPECIFICATIONS
Complete specifications for the Ohaus Pioneer Balances are listed in Tables 1-1
– 1-5.
When a balance has been serviced, it must meet the specifications listed in the table.
Before servicing the balance, determine what specifications are not met.
TABLE 1-1. SPECIFICATIONS: EXTERNAL CALIBRATION MODELS (includes M Models)
MODEL PA64 PA114 PA214 PA153 PA213 PA313 PA413 PA512 PA1502 PA2102 PA4102 PA4101
Capacity
(g)
65 110 210 151 210 310 410 510 1510 2100 4100 4100
Readability
(g)
0.0001 0.001 0.001 0.01 0.1
Repeatability
(mg)
0.1 (std. dev.) 1 1 (std. dev.) 10 (std. dev.) 100 sd
Linearity
(g)
± 0.0003 ± 0.003 ± 0.03 ± 0.3
OCL ½ cap ½ dist 0.1
mg
0.2
mg
0.3
mg
3
mg
30
mg
40
mg
200
mg
Tare Range To capacity by subtraction
Stabilization 3 Seconds
Span Cal Mass
(g)
50 or
60
50 or
100
100 or
200
100 or
150
100 or
200
200 or
300
200 or
400
200 or
500
1000 or
1500
1000 or
2000
2000 or 4000
Lin. Cal Mass
(g)
20,
50
50,
100
100,
200
100,
150
100,
200
150,
300
200,
400
200,
500
1000,
1500
1000,
2000
2000, 4000
Pan Diameter 3.5 in / 9 cm 4.7 in / 12 cm 7.1 in / 18 cm
Net Wt 10 lb / 4.5 kg 7.3 lb / 3.3 kg