The following table lists the standard and optional specifications for the PR-43-AC refractometer.
Specification |
Standard | Optional |
---|---|---|
Refractometer PR‑43‑A models |
PR-43-AC compact model for small pipelines. | |
Refractive index range |
Full range, nD = 1.3200 … 1.5300 corresponds to hot water…100 Brix or % by weight. | nD 1.2600 … 1.4700. |
Accuracy |
Across the full range of 0-100 Brix: Refractive index nD ±0.0002 corresponds typically to ±0.1 Brix or % by weight |
High accuracy version -HAC in the range of 0-30 Brix and +4 … +30 °C (+39 … +86 °F):
|
Repeatability | Across the full range of 0-100 Brix: nD ±0.00004 (corresponds typically to ±0.02 Brix or % by weight). | |
Speed of response |
1 s undamped, damping time selectable up to 5 min | |
Calibration |
With NIST traceable Cargille standard R.I. liquids over full range | |
CORE‑Optics |
No mechanical adjustments and digital measurement with 3648 pixel CCD element, sodium D-line LED built-in Pt-1000 temperature sensor (linearization according to IEC 751) | |
Temperature compensation |
Automatic, digital compensation |
|
Instrument verification |
With NIST traceable Cargille standard R.I. liquids and guided procedure, including a printable verification report | |
Process connection |
Sanitary clamp 2.5 in; Varinline® in‑line access unit clamp DN65 or using elbow flow cell (for line sizes of 2.5 in and smaller) |
|
Hygienic design certification | 3-A Sanitary Standard 46-04 certified and EHEDG (European Hygienic Engineering & Design Group) Type EL Class I certified. | |
Process pressure |
Sanitary clamp max. 15 bar (200 psi) at +20 °C (+70 °F) / 9 bar (125 psi) at +120 °C (+250 °F) High pressure sanitary clamp HP 40 bar |
|
Process temperature |
−40 … +130 °C (−40 … +266 °F) | |
Ambient temperature |
−40 … +45 °C (−40 … +113 °F) | |
Process wetted parts | AISI 316L stainless steel, sapphire prism, prism gasket modified PTFE (Teflon), gasket EPDM for Sanitary 3‑A and ISO2852 type EHEDG certified gasket for EHEDG certified refractometers. | Alloy C276 |
Refractometer protection class | IP67, Type 4X | |
Refractometer weight | 1.6 kg (3.5 lbs) | |
Current output | Isolated 4-20 mA, max. load 1000 Ω, galvanic isolation 1000 V DC or AC (peak), hold function during prism wash. | |
Remote and Ethernet connections | 10/100 BaseT Ethernet, web server for configuration and diagnostics, UDP/IP Protocol connection for data acquisition. | |
Power supply | +24 V DC ±10 %, max. 2 VA | |
Interconnecting cables | Standard length 10 m (33 ft). Cable maximum length 50 m (164 ft) |