Badger Meter SRD/SRI Valve Positioners - Manual (Page 12)

SRD960 with HART communication
SRD960-xHxxxx
Signal Input
Two wire system
Reverse polarity protection . . standard feature
Signal range . . . . . . . . . . . . 4 to 20 mA
Operating range. . . . . . . . . . 3.6 to 21.5 mA
Voltage range of unloaded
input signal . . . . . . . . . . . . . 12 to 48 V
Load . . . . . . . . . . . . . . . . . . 420 Ohms, 8.4 V at 20 mA
Communication signal . . . . . HART, 1200 Baud, FSK
(Frequency Shift Key)
modulated on 4 to 20 mA
0.5 Vpp at 1kOhm load
Input impedance Zi. . . . . . . . Z = 320 Ohms
for ac voltage 0.5 to 10 kHz with < 3 dB non-linearity
Cable capacity and inductance see HART standard
specifications. (e.g. C < 100 nF).
Impedance of other devices at the input (parallel or serial)
must be within HART spec.
Applications without communication require not to exceed
input capacitance parallel to the input not higher than 100 µF.
Start-up time (init phase) . . . approx. 2 sec
Interruption time without power down:
- with LCD . . . . . . . . . . . . . . 85 ms
1)
- with LED . . . . . . . . . . . . . . 75 ms 1)
Configuration
Local / Display . . . . . . . . . . . see “Functional Specifications
(common data for SRD960 -B or C)”,
Operation and configuration
Software . . . . . . . . . . . . . . . VALcare™ (FDT-Software)
Hardware. . . . . . . . . . . . . . . Modem MOD991 for PC, IBM
compatible
Hand Terminal . . . . . . . . . . . HART Hand held terminal
I/A Series System . . . . . . . . on request
Other control systems . . . . . AMS,SiemensSIMATICPDM
(ProcessDeviceManager)
1) Worst case conditions 4-20mA, with position feedback option, i/p-output
with max. current
SRD960 with FoxCom communication
SRD960-xFxxxx
Signal Input
Two wire system
Reverse polarity protection . . standard feature
Input . . . . . . . . . . . . . . . . . . digital
voltage range of supply input DC 8 to 48 V
Supply current . . . . . . . . . . . approx. 9 mA at DC 24 V
Communication signal . . . . . FoxCom digital, 4800 Baud,
FSK (Frequency Shift Key)
modulated on supply voltage
0.5 Vpp at 500 Ohms load.
Input impedance . . . . . . . . . Z = 500 Ohms
(for ac voltage 3 kHz to 15 kHz)
Start-up time (init phase) approx. 2 sec
Interruption time without power down:
- with LCD . . . . . . . . . . . . . . 85 ms
1)
- with LED . . . . . . . . . . . . . . 75 ms 1)
Configuration
Local / Display . . . . . . . . . . . see “Functional Specifications
Software . . . . . . . . . . . . . . . VALcare™ (FDT-Software)
Hardware. . . . . . . . . . . . . . . Modem PC10
I/A Series System . . . . . . . . FBM 43, FBM 243, 246
2)
in connection with CP60
(common data for SRD960 -B or C)”,
Operation and configuration
POS-UM-00012-EN-02
Physical Specifications (Common Data for SRD960-B,-C or -T)
Page 12 August 2014