Spectrum Controls 1756sc-OF8H Series A User 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.