Hi,
Does anyone know of a HART communications bridge device that couples bi-directional HART communications between two different 4-20 mA current loops? Meaning, no DC signal coupling between the two loops, transformer isolation with bidectional gain in a single packaged device would nice...
Is there an industry standard or performance expectation for 2 wire 4-20mA output devices (actuators, positioners) for signal levels below 4mA? For example, many field transmitters incorporate special signal indications outside the 4-20mA interval for alarm levels or diagnostic indications. And...
Does anyone know whether any Hart hand held terminals can be used together with Ovation Hart I/O modules? I am thinking that AMS is the recommeded approach where Hart communications passes through the Ovation Hart I/O module but I do not know if loop connected Hart hand held terminals (ie...
I am looking for some basic information from users of the Ovation Hart IO interface using Hart communications for data exchange between Ovation and instruments. Are there any particular requirements on the instrument; ie, is only Hart burst mode operation supported, what Hart commands are...
I am trying to find the subject Copper 10 RTD standard, any suggestions would be appreciated. The standard is listed in the HART Communications Foundation Document HCF_SPEC-160.4, Temperature Device Family Specification, code 101 . I did not have luck calling the Hart Foundation.
I seek recommendations for a small control system suppliers that can handle about 12 analog inputs, 12 analog outputs, 10 digital inputs and 10 digital outputs, with mixed analog and digital control, easily configurable control with one easily configurable operator console. Outdoor...
Is there some reference (code or standard) basis for the minimum separation distance between 1/2"NPT conduit entries on enclosures for Div 2 and/or explosion proof Div 1 locations?
Thansk in advance for any advice.
