Probe connection terminals are used to connect measurement devices, such as probes and refractometers, to the transmitter.
Before connecting wires or cables, make sure that the transmitter is powered off.
For the M16×1.5 cable glands ordered together with the transmitter from Vaisala, the cable diameter is 2.0 … 6.0 mm (0.08 … 0.24 in) or 4.0 … 8.0 mm (0.16 … 0.31 in) depending on your configuration. Tightening torque for the cable gland is 6 Nm.
The minimum length of the measurement device connection cable is 30 cm (11.81 in). The recommended maximum length of the measurement device connection cable is 30 m (98 ft).
- 1
- Probe 1 lead-through, M16×1.5
- 2
- Probe 2 lead-through, M16×1.5
| Terminal | Function | Wire color in standard Vaisala cables | Wire color in Vaisala refractometer cables | Notes |
|---|---|---|---|---|
| RS-485- | RS-485- | White | Green | Max. wire size: 2.5 mm2 (14 AWG) |
| RS-485+ | RS-485+ | Black | Yellow | |
| 24 VOUT - | Power GND and RS-485 common | Blue | White | |
| 24 VOUT + | Positive supply voltage to probe | Brown | Brown |