Alicat PCU Portable Calibration Unit User Manual
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Technical Data for the Alicat Portable Calibration Unit (PCU)
The following specifications are for the standard configuration of the device. Please contact us or visit
www.alicatscientific.com
for customization details, application notes, etc.
Basic Specification
PCU Meters
Description
Accuracy
± (0.4% of Reading ±0.2% of Full Scale)
At calibration conditions after tare
Repeatability
± 0.2%
Full Scale
Operating Range
1% to 100% Full Scale
Measure and Control
Typical Response Time
10
Milliseconds (Adjustable)
Standard Conditions (STP)
25º C & 14.696PSIA
Mass Reference Conditions
Operating Temperature
−10 to + 50
º Celsius
Zero Shift
0.02%
Full Scale / º Celsius / Atm
Span Shift
0.02%
Full Scale / º Celsius / Atm
Humidity Range
0 to 100%
Non – Condensing
Flow Rate
128% Measurable
Full Scale
Maximum Pressure
145
PSIG
Input /Output Signal Standard
RS-232 Serial & 0-5Vdc
Input / Output Secondary
0-5 Vdc; 0-10Vdc;4-20mA
Pressure, Temperature or Flow
Warm-up Time
< 1
Second
Wetted Materials
303 & 302 Stainless Steel, Viton®, Silicone RTV (Rubber), Glass Reinforced Nylon, Aluminum,
Silicon, Glass.
Standard Full Scale Flow Ranges
0.5SCCM
100SCCM
50SLPM
1SCCM
500SCCM
100SLPM
2SCCM
1SLPM
250SLPM
5SCCM
2SLPM
500SLPM
10SCCM
5SLPM
1000SLPM
20SCCM
10SLPM
1500SLPM
50SCCM
20SLPM
No charge for alternate full scale ranges to increase
accuracy (e.g. 2.5SLPM) or alternate units of measure (e.g.
133SCFH).
Full Scale range applies for all 30 gases and mixtures in the
calibration table.
Standard Pressure Drop Across the Device in PSID
Full Scale Flow
0.5SCCM to 1SCCM
1.0
2SCCM to 50SCCM,
1.0
100SCCM to 500SCCM
1.0
1SLPM
1.0
5SLPM
1.0
10SLPM
1.0
20SLPM
1.0
50SLPM
2.0
100SLPM
2.5
250SLPM
4.0
500SLPM
5.5
1000SLPM
6.0
1500SLPM
9.0
CCM
CCH
LPM
LPH
CFM
CFH
CFH
0.0021
0.00003
2.1189
0.035
60.0
1.0
CFM
0.000035 0.0000005 0.035
0.00059
1.0
0.0166
LPH
0.06
0.001
60.0
1.0
1699.0
28.316
LPM
0.001
0.000017
1.0
0.0166
28.316
0.4719
CCH
60.0
1.0
60000.0
1000.0
1699011.0 28317.0
CCM
1.0
0.0167
1000.0
16.667
28317.0
471.947
Flow Conversion Table: