KROHNE OPTIMASS Series User Manual

Installation and Operating Instructions OPTIMASS
76
Testing alarm output Fct. 2.7
This is a simple function that allows the alarm output to be tested at both its high and low states.
Display
Key
Line 1 Line 2
→↑
Fct. (2) TEST
→
Fct. 2.(1) DISPLAY
↑ x 6
Fct. 2.(7) Alarm out
→
SURE (NO)
↑
SURE (YES)
↵
(Level Low)
0V on the output
↑
(Level High)
+24V on the output *
↵
Fct. 2.(7) Alarm out
* Actual voltage depends on supply if using a PASSIVE status output
Testing control input Fct. 2.8
This function allows the state of the control input signal to be tested.
Display
Key
Line 1 Line 2
Fct. 2.(7) Alarm out
↑
Fct. 2.(8) Control inp.
→
SURE (NO)
↑
SURE (YES)
↵
Level HIGH or LOW depending on input voltage
↵
Fct. 2.(8) Control inp.
Line 2 of the display shows the current state of the input.
• HIGH = 4...24 Volts,
• LOW = 0...2 Volts.
As the voltage on the input changes so the display will change from HIGH to LOW accordingly. However,
whilst using the test function no action will be taken in response to the input
(i.e. the total will not be reset).
Note:
If the input is disconnected it will read LO

KROHNE OPTIMASS Series Specifications

General

Housing Material	Aluminum, stainless steel
Measurement Principle	Coriolis
Flow Measurement	Mass flow, density, temperature
Accuracy	±0.1% of rate
Repeatability	±0.05% of rate
Pressure Range	Up to 400 bar
Communication Protocols	HART, PROFIBUS DP/PA, Modbus, Foundation Fieldbus
Materials	Stainless steel, Hastelloy
Approvals	ATEX, IECEx
Output Signals	4-20 mA, pulse, frequency
Protection Class	IP67
Process Connection	Flanged, threaded, sanitary
Power Supply	24 V DC, 100-240 V AC