Badger Meter SRD/SRI Valve Positioners - Manual (Page 14)

SRD960 as Position Transmitter stand
alone unit SRD960 -TxQ
Input . . . . . . . . . . . . . . . . . Stroke / Rotary angle by
means of conductive
plastic precision
potentiometer
Output . . . . . . . . . . . . . . . . Two wire system
Signal range . . . . . . . . . . . . 4 to 20 mA / 20 to 4 mA
or free configuration
3.8 to 20.5 mA
Permitted load . . . . . . . . . . . R
bmax
= (Us–12 V) / 0.02 A [ Ω]
(Us = supply voltage)
Power supply
Reverse polarity protection . . standard feature
Supply voltage . . . . . . . . . . . Us = DC 12 to 36 V
Permitted ripple . . . . . . . . . . < 10 % p.p.
Supply voltage dependency . negligible
Response characteristic
Non-linearity (terminal
based adjustment) . . . . . . . . < 1% F.S.
Hysteresis . . . . . . . . . . . . . . < 0.5% F.S.
Load dependency . . . . . . . . negligible
Temperature effect. . . . . . . . < 0.1 % / 10 K
Weight . . . . . . . . . . . . . . . . . approx. 2.3 kg
Configuration and status
Local configuration . . . . . . . . 2 push buttons and 2 LEDs
SRD960 as potentiometer unit for remote
mounting application
SRD960 -Txxxx - H
Travel Range
Stroke range . . . . . . . . . . . . 8 to 260 mm (0.3 to 10.2 in)
with standard feedback levers; special levers on request
Rotation angle range . . . . . . up to 95 ° (to 300° on request)
(without mechanical stop)
Response Characteristic
please refer you to the technical data of the positioner
SRD960 with which is mounted together.
Weight . . . . . . . . . . . . . . . . . approx 2.3 kg
Ambient conditions
Ambient temperature . . . . . . –40 to 100 °C (–40 to 212 °F)
IP66
For more information about remote mounting please
consult TI EVE0105_R .
OPTION for all SRD960 -B or C
Pressure sensors [item 3
]
Three built-in pressure sensors, Code "Option –B”,
for supply air, output y1 and y2 to actuator,
necessary for Premium Diagnostic
Measuring range . . . . . . . . . 0 to 8 bar (0 to 120 psig)
Accuracy . . . . . . . . . . . . . . . 0.5 %
Temperature influence . . . . . 0.5 % / 10 K (–40 to 80 °C)
Parts set for subsequent mounting:
Option B (3x pressure sensors) . . . . . EW 426 247 311
Option –B “Built-in pressure sensors”
POS-UM-00012-EN-02
Physical Specifications (Common Data for SRD960-B,-C or -T)
Page 14 August 2014