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

1) With appropriate order only
2) National requirements must be observed
SRD991 with HART Communication
(SRD991-xHxxxx)
Signal Input Two wire system
Reverse Polarity
Protection
Standard feature
Signal Range 4…20 mA
Operating Range 3 6…21 5 mA
Input Voltage 12…36 V DC 1) (unloaded)
Load 420 Ohms, 8 4 V at 20 mA
Communication Signal HART, 1200 Baud, FSK
(Frequency Shift Key)
modulated on 4…20 mA 0 5
Vpp at 1 kOhm load
Input impedance Zi Z = 320 Ohms for AV voltage
0 5…10 kHz with < 3 dB
non-linearity
Cable Capacity and
Inductance
See HART standard
specifications (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
Startup Time
Approx 3 sec
Interruption Time Without
Power Down
With LCD: typ 80 ms 2)
1) On request we can specify higher voltage limits
2) Worst case conditions 4-20 mA, with position feedback option, i/p-output with max
current
3) Check CP for suitable ECBs
Configuration
Local / Display See page 9
Software/Driver VALcare or Valve
Monitor(DTM)
Hardware HART Modem for RS232 or
USB port
Handheld Terminal ex: HT991, HT375, HHT50
I/A Series System FBM215 or FBM218
(redundant) in combination
with CP60 3)/ FCP270
Other Control Systems AMS, Siemens SIMATIC PDM
(ProcessDeviceManager),
Any decentralised Control
System
DTM for HART
Local Configuration
LCD Display, see page 9
Trough HART Communication
• PC20 standalone Software for PC (only via RS232)
• VALcare
• Valve Monitor
• Can be integrated onto any FDT Frame onto any Host
suppending of FDT Frame
• H275/375
• AMS for Emerson
• PDM
• via service port
Safety Requirements
Page 14 August 2014 POS-UM-00223-EN-02