Alicat Scientific

PCU Multi-Range Portable Calibration Unit

Secondary calibration standards that can go anywhere to verify the operation of flow equipment

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PCU Multi Range Portable Calibration Unit 00586
PCU 2
PCU 3
PCU 4
PCU 5

When a single flow meter won’t cover all of your calibration needs, consider using a portable calibration unit (PCU). Alicat’s PCU-Series portable calibration units are secondary calibration standards that can go anywhere to verify the operation of flow equipment. Each PCU portable calibration unit comes with totalizers and high-accuracy calibration (0.4% reading + 0.2% full-scale range). These are housed inside a rugged industrial carrying case and powered by two (2) 9V  batteries (AC connections also included). The PCU includes integrated push-connect fittings for each meter, plus a copy of Alicat’s Flow Vision SC™ software. Available in stainless steel (PCUS) for corrosive gases and in the “Whisper” series (PCUW) for low pressure drop applications.

Alicat’s portable calibration units (PCU) combine three (3) battery-powered flow meters of complimentary ranges in a single case, each with totalizer and NIST-traceable high-accuracy calibration to a primary flow standard. With three overlapping measurement ranges, the PCU is capable of a total turndown of a million to one, making this an extremely versatile instrument.

• Combines up to 3 high-accuracy flow meters of varied ranges
• Quickly calibrate multiple instruments across a combined turndown range of up to 1,000,000:1
• Measures live flow rates and flow totals with NIST-traceable accuracy
• Model variations include low pressure drop (PCUW) and for corrosive/aggressive gases (PCUS)
• Flow meters houses within a rugged hard case to withstand drops if they should occur
• Includes COMPOSER™ gas composition firmware and Flow Vision SC™ software
• Multiple build and performance options
• NIST traceable
• Lifetime warranty

Accuracy at Calibration Conditions After Tare± (0.8% of Reading + 0.2% FS)
High Accuracy at Calibration Conditions After Tare*± (0.4% of Reading + 0.2% FS)
High Accuracy option not available for units ranged under 5 sccm or over 500 slpm
Repeatability± 0.2% FS
Zero Shift and Span Shift0.02% FS / ºCelsius / Atm
Operating Range0.5% - 100% FS
Turndown Ratio200:1
Maximum Measurable Flow Rateup to 128% FS (Gas Dependent)
Typical Response Time10 ms (adjustable)
Warm-up Time< 1 s
Standard Mass Reference Conditions (STP)25ºC & 14.696 PSIA
Operating Temperature-10°C - 60ºC
Humidity Range (Non-Condensing)0% - 100%
Maximum Internal Pressure (Static) M Series: 145 PSIG
Whisper: 45 PSIG
Maximum Allowable Instantaneous Differential Pressure Across Device (Inlet to Outlet)M Series: 75 PSID
Whisper: 15 PSID
Proof Pressure175 PSIG
Ingress ProtectionIP40
Wetted Materials303 & 302 Stainless Steel, Viton®, Heat Cured Silicone Rubber, Glass Reinforced Polyphenylene
Sulfide, Heat Cured Epoxy, Aluminum, Gold, Silicon, Glass

• Calibration of multiple flow instruments

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