Meriam MFT 4010 Modular Calibrator_HART Communicator - Manual (Page 99)

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Connect the leads and any necessary jumpers to the transmitter RTD sensor terminals and select the OK
soft key. The RIO Simulation screen shown below will be displayed. From this screen the user can select
simulation units, start a simple simulation, assign a step value change, or setup and execute automated
step or ramping test procedures.
1.2.1 Start begins an RTD (resistance) simulation. When Start is selected with the Select soft
key, a numeric entry screen appears to facilitate the entry of the desired simulation value
(degree or ohm value as selected at
Units line). Once a value has been entered and saved,
the MFT will use the RTD type and alpha coefficient previously specified to both determine
and output the corresponding ohm value through the User Cable.
1.2.2 Units is used to select the temperature unit for the simulation. °C, °F, °K, and °R are the
available. The user can also select ohms if desired.
1.2.3 Step Value is a user entered value that can be used to increment or decrement the
simulation value after the simulation is started.
1.2.4 Auto Step 1-3 menu options enable pre-programmed Simulations to be set up and executed
automatically. Auto-Steps settings are remembered and stored for future use.
.
Select Start menu option to begin the indicated Auto Step number.
RIO Simulation
Simulating
Start
Units: C
Step Value: 10.0 C
Auto Step 1
Auto Step 2
Auto Step 3
Auto Ramp 1
Auto Ramp 2
Auto Ramp 3
Up Down Select Back
RIO Simulation
Fixed Simulation Mode
Enter Output in C
The S->Pt 100 (385)
probe has a range of
-200.0 C to 850.0 C
_ 0.0
< > Inc Done
Fixed Simulation Value Entry Screen
RIO Simulation
Simulating Probe
U->Pt 100 (385)
Output = 0.0 C
IV: 4.000 mA
Inc Dec Change Exit
Simulation with mA/V