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Products: Desktop Low Pressure Calibration System: Specifications

Measurement Range:
-1.5 to 11.5" H2O (-3.75 to + 27.5 mbar)
Measurement Accuracy:
± 0.035% of Full Scale @ 25ºC
(Includes zero, span, hysteresis
and repeatability errors)
Repeatability/Hysteresis:
± 0.015% Typical
Calibration Point Certainty:
± 0.012% Typical
Between Point Linearity:
± 0.01% Typical
Maximum Overpressure:
5 PSI (347 mbar)
Control Range:
-10" to + 10" H2O Standard
(-25 mbar to +25 mbar)
System Accuracy:
Lab Environment (@ 25ºC) ± 0.035%
of Full Scale
(Combined Measure/Control)
Field Operation (10 to 30ºC) ± 0.05%
of Full Scale
Stability:
± 0.05% of Full Scale/Year
Temperature Range:
Operational: 0ºC to 50ºC
Calibrated: 10ºC to 30ºC
Storage: -20ºC to 50ºC
Input Power Requirements:
105-135 VAC/210-270 VAC
50/60 Hz @ 48 VA
Battery Operation:
2.2 AHr Self-Contained NiCad
Operational (50% duty):
Approximately 2 Hours
Display:
2 x 20 Alphanumeric Fluorescent Display:
0.2" ( 5mm) H
Units:
in H2O @ 20ºC, in H2O @ 4ºC,
mm H2O @ 20ºC
in H2O @ 4ºC, cm H2O @ 20ºC,
cm H2O @ 4ºC
in Hg @ 0ºC, Torr (mm Hg),
cm Hg @ 0ºC, mBar
Pascal, kPascal, PSI
Indicators:
Measure, Control, Program, Power, Standby, Battery
Digital Interface:
Via RS232, 4800 Baud
Sensor Technology:
Solid State, Piezoresistive Strain Gauge
Pressure Synthesis:
Via Balanced Differential Piston Array, Servo Actuated
Closed Loop Digitally Governed
Pressure Synthesis
Control Certainty:
± 0, -.015%
Auto Zero Certainty:
Microprocessor Governed Via Electropneumatic Control
(Resident in RAM) Better Than ± 0.005% of Full Scale
Calibration:
Factory Calibrated Against NIST Traceable Standard
OPERATING MODES
Measure:
Measurement Only - 1.5 to +11.5" H2O
(-3.75 to +27.5 mbar)
Control:
Generation of Single Pressure/Vacuum Point
Program:
Selection of Up to 99 Points
(Accuracy Band Limited to Greater
than 0.05% of Full Scale Point Spacing)
Dwell Interval:
5, 10, 20, 30, 45, 60 & 90 Seconds
(Control/Program Modes)
Per Point, User Selectable
Dimensions & Weight:
10" Wide x 4.25" High x 8.25" Deep)
Warranty:
1 Year Parts & Labor (90 days for NiCad batteries)


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United Instruments, Inc.,
51 Boyd Drive • Westbury, NY 11590
Tel: (516) 334-0474 • Fax: (516) 338-2067 (fax)
sales@unitedinstruments.com

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