Spectrum Controls 1769sc-HART Modules - Manual (Page 167)

User’s Manual 0300217-03 Rev. A
Appendix A
Module Specifications
Electrical
Specifications
Number of Channels 4 single isolated outputs with HART
Output Ranges 0 to 20.0 mA and 4 to 20mA
Output Load 750 ohm max.
Resolution 16 bits over full design range (0-21.24mA)
Full Scale Settling Time
without HART enabled
<45ms to 95% of full scale
Full Scale Settling Time
with HART enabled
<70ms to 95% of full scale
Analog Output Update Rate 10ms update of all 8 channels
Differential Nonlinearity +/-0.05% full scale based on 4-20mA range.
Output Ripple +/-0.05%, or better full scale 0-50kHz
Repeatability +/-0.05% full scale
Max Inductive Load 0.1mH
Output Impedance > 1 Megohm
Accuracy Temperature Accuracy
(% Full Scale)
25
C
0.35%
0 to 60
C 0.55%
Calibration Modules will be factory-calibrated.
I SOLATION V OLTAGE 710VDC terminal block to back plane continuous
710VDC Channel to Channel continuous
710VDC terminal block to Frame Ground
continuous
Maximum Backplane
Current draw
180mA @ 5VDC, 200mA @ 24VDC
Thermal Dissipation 4.2 W at 21.0 mA current all channels with
250ohm minimum load.
Maximum Slot Distance 8 for backplane +24V
Overvoltage Protection +24V continuous on any current output
Power on/off channel glitch Under +/- 1V for 2ms. Target: +/-0.5V spike for
<5ms
Open and Short Ckt
Protection
Yes, continuous. (EN61131-2 requirement)