Refractometer specifications - PR53

Mechanical specifications

PR53S mechanical specifications
Property	Specification
Wetted parts
Prism and sapphire plate	Sapphire monocrystalline, 99.996 % Al₂O₃ ¹
Flow cell	Ultra pure PTFE ¹
Prism gasket	Modified PTFE ¹
Process gasket 20.2 × 3 mm (0.8 × 0.1 in)	Kalrez W240UP ¹
Non-wetted parts
Housing	PVDF

PR53S inputs and outputs
Property	Specification
Supply
Operating voltage	24 V DC nominal (9–30 V DC)
Power consumption	Less than 1 W
Protection class	3, PELV
Overvoltage category	I
Outputs
Output parameters	Refractive index, 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 (±0.0002 RI)
Supported protocol	HART 7
Output parameters	Concentration
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 8-pin A-coded male With an adapter 1 × M12 4-pin A-coded male An adapter cable is needed to connect to USB2 and Indigo80. USB2 adapter is used with Insight software, see vaisala.com/insight.

PR53S operating environment
Property	Specification
Process parameters
Process temperature	–20 … +85 °C (-4 … +185 °F)
Pressure	10 bar at 20 °C, 4.5 bar at 130 °C (145 psi at 68 °F, 652 psi at 266 °F)
Operating environment
Storage temperature	−40 … +65 °C (−40 … +149 °F)
Operating temperature	−20 … +45 °C (−4 … +113 °F)
Maximum operating altitude	2000 m (approx. 6500 ft)
Operating humidity	0–100 %RH
Storage humidity	0–100 %RH, non‑condensing
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.