Setra System 269 - Manual (Page 3)

269
Current
Monitoring
Device
13.5 to 30 VDC
+
_
4.5 Restoring Factory Calibration
To restore factory set calibration, turn unit off power and press cal button. Turn on the power while cal button is
depressed and release cal button.
5.0 MODEL 269 PERFORMANCE SPECIFICATIONS
Performance Codes V E G
Accuracy Class (FS) ±0.25% FS ±0.50% FS ±1.0% FS
Non-Linearity
Terminal Point ±0.15% FS ±0.35% FS ±0.75% FS
BFSL ±0.10% FS ±0.25% FS ±0.55% FS
Hysteresis (Typical) ±0.05% FS ±0.05% FS ±0.10% FS
Non-Repeatability ±0.05% FS ±0.05% FS ±0.10% FS
Thermal Effects
Compensated Range °F 20 to +140
Zero Shift %FS/°F 0.01% 0.02% 0.03%
Span Shift %FS/°F 0.01% 0.02% 0.03%
Maximum Line Pressure 2 psi
Overpressure ±15 in. W.C.
Long-term Stability 0.5% FS/1 Yr
Position Effect Range Zero Offset (%FS/G)
(Unit is factory calibrated at 0g effect To 0.1 in. WC 2.50
in the vertical position, pressure To 0.5 in. WC 1.00
ports pointing upward.) To 1.0 in. WC 0.50
To 2.5 in. WC 0.22
To 5 in. WC 0.14
Electrical
Calibrated at factory with a 24 VDC loop supply and a 250 ohm load.
Zero output factory set to 4±.04 mA for unidirectional pressure ranges and 12±.04 mA for
bidirectional ranges in vertical position.
Span factory set to 16±.04 mA.
Current Circuit Diagram Security Cal Key
Diagram 3
Cal Encoder
Cal Button
3
Diagram 1
Diagram 2