The Jenco 1671 operation manual explains setup, controls, calibration and wiring for the dual‑display pH, ORP and conductivity instrument.
This manual covers the Jenco Model 1671 dual‑display benchtop instrument, which combines pH, ORP (Redox) and conductivity measurement functions in a single enclosure. It describes the front‑panel controls, rear‑panel connections, power options, and the four operating modes (pH, mV, pH‑Autolock, mV‑Autolock).
Detailed sections guide users through initial inspection, calibration procedures, electrode compensation, and accessory connections. Safety information, warranty terms, and specifications such as power requirements, dimensions and battery life are also provided.
| Power supply | 115/230 V AC |
|---|---|
| Battery type | AA (6) |
| Battery life | 20 hours (typical) |
| Dimensions | 250 × 240 × 100 mm |
| Weight | 1.3 kg (2.87 lb) |
| Conductivity range | 0 to 199.9 mS/cm |
| pH range | 0.0 to 60.4 |
A special four‑pin connector labeled “3‑1” ELECTRODE CONNECTOR is used for those electrodes.
The instrument provides about 20 hours of operation on its internal AA batteries under typical conditions.