Teledyne 3010TB Operating Instructions Manual page 88

5 Maintenance
5-8: Part II
Analog
0 OK
1 DAC A (0–1 V Concentration)
2 DAC B (0–1 V Range ID)
3 Both Failed
Preamp
0 OK
1 Zero too high
2 Amplifier output doesn't match test input
3 Both Failed
Teledyne Analytical Instruments
Model 3010TB