HANNA INSTRUMENTS HI 2550 PH/ORP & EC/TDS/NACI METER T94892

Unit tested.
For parts or repair only.
2 point calibration performed.
1st point (7.01) pased,
2nd point (4.01) failed.
Test probe may need to be deamed accordingly to performance in manual.
Both tests performed with good buffers.
Temperature probe working (compared with calibrated thermometer).
EC probe not tested.
All front panel buttons working.
Input power: 120 VAC.