11
Current Simulate Functions:
The FracSim meter can sink or source
0 up to 22mA
while
simultaneously measuring loop voltage. To access the current
simulation from the main menu select
SIM=>
and
mA
. Use the
following pin outs:
As previously stated the current simulation also shows the measured
loop voltage for quick loop diagnostics. The loop voltage function is
only useful while sinking current. Most transmitters require a
minimum 8 to 10 volts
. So if you see a loop voltage lower than this
or the transmitters recommended voltage minimum, then this is an
issue. The FracSim meter will work because it is internally powered
but the transmitter may not
Pressing the turn knob down quickly will increment the
output value by 4mA each press
Turning the turn knob clockwise will increment the output
value by 0.1mA
Turning the turn knob counter-clockwise will decrement the
output value by 0.1mA
▪
Sinking:
- Supply volts from equipment to red socket on meter
- Black socket to signal input of equipment
▪
Sourcing: - Red socket to signal input of equipment
- Frame ground to black socket on meter
12
Frequency Simulation Function:
The FracSim meter will simulate an
AC / DC square wave
frequency
from
1 to 5000 Hz
with a range from
0 to 18 volts
(maximum is
proportional to battery voltage). To access the frequency simulation
from the main menu select
SIM=>
and
Hz
. Use the following pin
outs:
Adjustments:
Default output is 18V (battery voltage) DC coupled at 100 Hz
Turning the knob will increment / decrement the frequency
output
Pressing the turn knob down quickly will enter an adjustment
sub menu
First Select AC or DC for the correct type of coupling
Second turn the knob left and right to adjust the voltage level
For devices that have a very low level switching point use the
AC mode. An example of a low level input could be the Red
Lion silver tube amplifiers (Part: ASTC0000).
Red socket to device input
Black socket to device ground
