Table 1.1—General Specications
MVT Accuracy Differential Pressure ± 0.05% of range for all except for 30 “H2O
± 0.1% of range for 30 “H2O
Static Pressure ± 0.05% of range
Temperature Effect ± 0.25% of full scale over operating range
Stability (long-term drift) Less than ± 0.05% of URL per year over a ve-year period
Resolution 24 bits
Effect on Differential Pressure for a 100-psi Pressure Change
Differential Pressure
Range (in. H2O)
Zero Shift
(% URL)
Span Shift
(% reading)
± 30* .05 .01
± 200** .01 .01
± 400 .04 .01
± 840 .04 .01
*± Indicates bidirectional capabilities (for example, a range of 30 in. H2O is –30 to +30 H2O).
**Exception: 200 x 300 psi has a zero shift of .007% and a span shift of .01%.
MVT Pressure
Ranges
Static Pressure/SWP
(psia)
Differential Pressure
(in. H2O)
Maximum Overrange
Pressure (psia)
100
30 150
300 200 or 840 450
500 30 or 200 750
1500 200, 400, or 840 2250
3000 200, 400, or 840 4500
5300 200, 400, or 840 7420
Custom ranges available by special order. For materials of construction, see Table 2.1—MVT Materials
and Bolt Specications, page 28.
Analog Inputs 4 channels
1 to 5 V, 0 to 5 V, 4 to 20 mA, or 0 to 20 mA
Accuracy: ± 0.030% of span maximum error at 25 degC (77 degF)
Temperature effect: ± 0.25% of span over operating range
Impedance: > 60 Kohm for 1 to 5 V input; approximately 250 ohm for 4 to 20 mA input
Transmitter voltage supply: 10 VDC at 20 mA, protected to 50 mA
Over-voltage protection: 30 VDC
A/D resolution: 22 bits (minimum 20 effective bits)
Linearity error: ± 0.020% max.; ± 0.010% typical
Single-ended inputs
Sample rate: 0.1 seconds to 12 hours
Four previous calibrations available stored in device
Congurable shutoff for saving power when transducer warm-up period is not required
Integral battery backup
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Section 1 Scanner 3100 EFM