Mechanical specifications
| If you have a refractometer for potentially explosive locations, the product specifications can be found in the Safety Guide. The Safety Guide is delivered with the product or it can be found in docs.vaisala.com. |
| Property | Specification |
|---|---|
| Wetted parts | |
| Sensor head | EN 1.4435 BN2 (AISI 316L) 1 |
| Wash nozzle |
EN 1.4404 (AISI316L) 1 EPDM gasket 2 |
| Surface roughness | Ra 0.8 μm |
| Prism | Sapphire monocrystalline, 99.996 % Al2O3 2 |
| Prism gasket | Modified PTFE 3 |
| Sanitary gasket 2.5" / 4" |
EPDM 2 |
| Tank bottom gasket MT4 DN25/1T for tank bottom flange | EPDM 2 |
| Tank bottom flange | AISI316L 1 |
| Welding ferrule | EN 1.4435 (AISI 316L) 1 4 |
| Non-wetted parts | |
| Housing | EN 1.4404 (AISI 316L) |
| Screws, TX20, torque 2.0 Nm | EN 1.4404 (AISI 316L) |
| Cable gland |
EN 1.4305 (AISI 303) HUMMEL 1.693.1600.50 |
| Dummy plug |
EN 1.4305 (AISI 303) AGRO 8717.96.08.70 |
| Thread adapter |
EN 1.4404 (AISI 316L) Vaisala, DRW257718, M16×1.5 / NPT ½ in |
| M12 connector |
Gland, EN 1.4305 (AISI 303) Contacts, CuZn with Ni/Au plating Phoenix Contact, 1405233, M12/4(M), A, 4×0.34 mm2, TPE, 0.5 m Carrier, PA 6.6 |
| Sanitary clamp 2.5" / 4" | EN 1.4301 (AISI 304) 2 |
| Cable | 2×2×0.5 mm2 (AWG 21), PUR jacket, black 10 m multistrand, with
ferrules Flame-retardant acc. to IEC 60332-1-2, FT1, VW1 |
| Weight | 3.6–4.2 kg (7.94–9.26 lb) |
Electrical specifications
| Property | Specification |
|---|---|
| Supply | |
| Operating voltage | 24 V DC nominal (9–30 V DC) |
| Power consumption | Less than 1 W |
| Protection class | 3, PELV |
| Outputs | |
| Output parameters | RI, temperature, concentration, quality factor |
| Analog outputs | |
| mA |
Sourcing, isolated, NAMUR NE 43, configurable |
| mA range | 3.8–20.5 mA |
| Maximum load | 600 Ω |
| Accuracy of analog outputs at +20 °C | ±0.1 % of full scale (±0.00002 RI) |
| Supported protocol | HART 7 |
| Digital outputs | |
| Digital output | RS-485, non-isolated |
| Maximum cable run | 300 m (approx. 1000 ft) (digital) |
| Supported protocol | Modbus RTU |
| Connectors | |
| External connectors |
1 × M12 M 4 pins, A-coded 5 1 × M16×1.5 cable gland, Cable D 5–10 mm / Adapter for conduit entry M16×1.5 / NPT ½" |
Environmental specifications
| Property | Specification |
|---|---|
| Process parameters | |
| Process temperature |
–40 … +150 °C (–40 … +302 °F) 6 |
| Design temperature | +180 °C (356 °F) 7 |
| Design pressure | 40 bar 8 |
| Operating environment | |
|
Storage temperature |
−40 … +65 °C (−40 … +149 °F) |
|
Operating temperature |
−40 … +60 °C (−40 … +140 °F) |
|
Maximum operating altitude |
2000 m (approx. 6500 ft) |
|
Operating humidity |
0–100 %RH |
|
Storage humidity |
0–100 %RH, non‑condensing |
|
UL 50E/NEMA rating |
Type 4X: Dust-tight. Protected from corrosion and hose-directed water. |
|
IP rating |
IP66: Dust-tight. Protected from powerful water jets from any direction. IP67: Dust-tight. Protected from the effects of temporary immersion in water under standardized conditions of pressure and time. |