Spectrum Controls 1756sc-OF8H Series A - Manual (Page 150)

Module Scan Time for all Channels—
Analog 12ms minimum floating point
HART (Typical) 6.4 seconds with 4 variables
12 seconds with 8 variables.
Isolation Voltage 2550VDC terminal block to backplane for 1 second.
2550VDC Channel to Frame Ground for 1 second.
Module Conversion Method R-Ladder DAC
RTB Screw Torque (NEMA) 7-9 inch-pounds (0.8-1Nm)
Module Keying (Backplane) Electronic
RTB Keying User defined
Field Wiring Arm and Housing 20 Position RTB (1756-TBNH or TBSH)1
Environmental Conditions
Operating Temperature 0 to 60°C (32 to 140°F)
Storage Temperature -40 to 85°C (-40 to 185°F)
Relative Humidity 5 to 95% noncondensing
Regulatory Compliance
UL 508
CSA (Class 1, Div 2, Group A,B,C,D)
CE compliance to EN 61010-1 and EN 61131-2
FM (Class 1, Div 2, Group A,B,C,D)
Firmware Revision History
Revision No. Description
1.1 New
2.3 Updated to provide user selectable pass through queue servicing speed.