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The old company name and logo may still be indicated on products, printed materials or web site published before its change. Those shall be read as the new ones.
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TECHNICAL INFORMATION |
| • Effective Use of the Math Function Module (1) (2) |
| 031050 | I am looking for a product,
which can add two types of flow. Besides, I need thin unit because there
is much room in the existing cabinets. [ HTML ] [ MS Word  148k ] |
| 031051 | DC wattage monitor system [ HTML ] [ MS Word 88k ] |
| 031052 | How do I determine wattage
from a DC source? [ HTML ] [ MS Word 108k ] |
| 031053 | With model M2MLS (inputs:1-5V DC, output: 4-20mA),
when both inputs 1 and 2 are 0V DC, the M2MLS provides the output greater
than 4mA. Why? [ HTML ] [ MS Word 84k ] |
| 031054 | I want to determine the ratio
of air and fuel flow for combustion control in order to improve the efficiency. [ HTML ] [ MS Word 108k ] |
| 031055 | I have two signals. When one of them multiplied
with a certain factor exceeds another signal, I need an alarm. [ HTML ] [ MS Word 108k ] |
| 031056 | I'm looking for a product
that can be used for ratio control of flow but need to change the ratio
frequently. Without using a tester or a screwdriver, is there any product
to match my request? [ HTML ] [ MS Word 140k ] |
| 031058 | I am looking for a product that can be used
for ratio control of air/fuel flows and I periodically have to change the
ratio. Is there any product to meet my requirement? [ HTML ] [ MS Word 156k ] |
| 031059 | In my current PID controller setup, when a
contact signal changes the Set Value (SV) in the control loop, the PID process
controller responds with a sudden increase of the manipulated value, causing
instability in the control process. How could it be possible to make any
controller MV responses to SV changes more gradual? [ HTML ] [ MS Word 152k ] |
| 031060 | Rate-of-change monitor/alarm [ HTML ] [ MS Word 84k ] |
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| 031061 | We have a mixing machine
for adhesives. When the rotating speed of its motor becomes too high, the
motor is heated and turns to dangerous condition. Can you tell us how to
limit the max rotating speed by a remote signal? [ HTML ] [ MS Word 116k ] |
| 031062 | Due to the common mode noise problem, we urgently
need isolation for the 4-20mA current loop. But we don't have an isolator
right now. And we have an isolated type High/Low selector as a spare part.
Can we use this unit (M2SES, inputs 4-20mA, output 4-20mA)? [ HTML ] [ MS Word 112k ] |
| 031063 | Peak Monitoring [ HTML ] [ MS Word 84k ] |
| 031064 | I have an application where my input signal
to a signal conditioner is constantly rising and falling. How can I maintain
the output from the signal conditioner so that it will only increase in
response for a rising value? [ HTML ] [ MS Word 148k ] |
| 031065 | When measuring the quantity
contained in a storage tan, how can I measure the amount already used up,
rather than the amount presently contained with in the tank? [ HTML ] [ MS Word 128k ] |
| 031066 | We are measuring the current of a motor by
a signal conditioner via CT (current transformer) is being measured. This
signal (4-20 mA) goes to a telemetering device to transmit to a control
room. But in the event when the motor is switched on, the signal conditioner
outputs more than 20 mA due to a rush current. by that, the signal is recognized
as motor default. [ HTML ] [ MS Word 124k ] |
| 031067 | Signal Limiting control [ HTML ] [ MS Word 68k ] |
| 031068 | Split Range Control [ HTML ] [ MS Word 76k ] |
| 031069 | I want to adjust zero point by remote contact
signal. Do you have a suitable transmitter? [ HTML ] [ MS Word 124k ] |
| 031070 | How can I maintain a specific output from a
signal conditioner at certain deliberate times? [ HTML ] [ MS Word 160k ] |
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| 032049 | Liquid Density Measurement [ HTML ] [ MS Word 100k ] |
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| 032050 | pH control in floatation process -- applying
field programmable signal conditioners [ HTML ] [ MS Word 140k ] |
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| 032051 | Measurent of heating medium
flow supplied to heat exchanger [ HTML ] [ MS Word 104k ] |
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| 032052 | We use a Math function Module model JF to measure
two tank levels. Today we removed the unit from its loop and provided a
simulation signal 4-20mA DC to it by using a signal generator as show in
Fig.1 to calibrate it for shutdown maintenance. However, we couldn't get
the output correctly. Why? [ HTML ] [ MS Word 120k ] |
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| 032053 | When one of the three input
terminals is open because this input is reserved for future expansion system,
will there be any problem? The equation is as follows: X0=K0{K1(X1 + A1) + K2(X2 + A2) + K3(X3 + A3)} + A0 [ HTML ] [ MS Word 80k ] |
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| 032054 | Wind speed is being measured with an anemometer
with north as center. Currently 4-20mA DC signal corresponding to wind speed
0-1000 rpm for north to east direction is indicated on a meter and another
4-20mA DC signal corresponding to 0-1000 rpm for north to west direction
on another meter. I want to indicate these two signals on a single meter. [ HTML ] [ MS Word 116k ] |
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| 032080 | The customer is a printing
company who is producing LCD color filters and supplying them to many electronic
companies. To keep the color filter’s good quality, they use a clean
room in their factory manufacturing process. There are 2 (two) pressure
sensors in the clean room. Each sensor’s output is a 4-20mA DC. They
want to control the clean room’s fan inverter system in proportion
to the average output of the 2 (two) pressure sensors. Therefore, they need
to get an average value of two pressure sensors as a 4-20mA DC standard
signal. Does M-System have a suitable adder unit for this application? [ HTML ] [ MS Word 180k ] |
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| 032088 | I use an output signal
(1-5 Vdc) from a water level indicator and watch water level of a tank. I use a pump and pull out water of a tank, but the tank suffers from minus number pressure when I operate the pump. It is about 0.3 V fall of output signal,1-5 Vdc. This minus number pressure troubles us to do a precise measuring of tank level. Could you suggest how to bias the output signal of 0.3 V when the pump works? [ HTML ] [ MS Word 268k ] |
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| 032100 | We plan to measure water levels of inside and
outside of water gate by water-level gauge. We’d like to display the
water level difference between the two gauges. On the panel, we like to
display them as follows:
[ HTML ] [ MS Word 245k ] |
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| 032112 | We have a 4-20 mA manipulate signal. And we
also have a potentiometer on the panel with resistance range 0-1k ohm. Adjusting
this pot. we’d like to get multiplied output with the ratio 0.5 to
1.5. Please advise how we should do with 4-20mA and potentiometer value? [ HTML ] [ MS Word 152k ] |
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| 032116 | We are planning to add flow
signals from two-flow meter. We’d like to use M-System model M2ADS
but we have no idea how to determine each parameter K1 and K2. We use 4-20 mA signals for all inputs and output. Power input will be 220 Vac. Actual flow values are as follows:
[ HTML ] [ MS Word 140k ] |
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| 032136 | We installed a control valve at field. This
valve works with control signal of 4-20mA. After installation, we found that the valve moves to open/close in the opposite direction of increase/decrease of 4-20mA. To solve the problem, we know we have to change operation mode of the valve. But the valve is already installed in a pit, which is too much narrow space for us to reach. As second best solution, we suppose we have to invert the manipulating signal 4-20mA to 20-4mA to match the valve action. Does M-System have any suitable transmitter for this application? [ HTML ] [ MS Word 124k ] |
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| 032137 | We monitor signal from the
turbidity meter, which is installed in drain facility. We have to maintenance/clean up the facility several times per year. We would like to provide a simulated DC signal to prevent the monitor equipment from detecting abnormal signal from turbidity meter during drain facility maintenance time. As for the simulated DC signal, we would like to change the set point and monitor the value easily. Does M-System have any suitable DC signal generator? We use 4-20mADC signal as turbidity meter output. We can prepare 100VAC power for the generator. We plan to switch from turbidity meter signal to simulated DC signal by using a switching relay. [ HTML ] [ MS Word 120k ] |
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| 032142 | We use M-System’s high/low selector M2SES
at our factory. We are keeping several pieces of M2SES in stock by suffix code 1 (low selector) and 2 (high selector). We like to have a module which is configurable with high or low selector, that can reduce our inventory. Does M-System have that kind of a product? [ HTML ] [ MS Word 292k ] |
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| 032146 | We like to apply an arbitrary ratio up to
2 for a 0-10V DC control signal by using the potentiometer on the front
panel. We know M-System’s ratio transmitter with control buttons, but
need a solution to use the potentiometer on the front panel instead. Is
there any suggestion? [ HTML ] [ MS Word 92k ] |
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| 032150 | We like to measure and display a typical temperature of our plant floor. Since there is a temperature difference at two measurement locations, we like to measure and select the higher or the lower temperature by season. Thermometer has a 4-20mA output. Is there any solution? [ HTML ] [ MS Word 83k ] |
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| 032154 | We are using DC Alarm (model: M2SED) to output an alarm signal when temperature rises over 60°C. Input signal of 4–20mA is from Thermocouple Transmitter (model: M2TS). Now we are planning to add one more set of thermocouple sensor and M2TS, so that an alarm output is enabled output when temperature of either sensor rises over 60°C. Is there a solution by adding a signal conditioner to use with M2SED? |
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| 032155 | For alarming when temperature rises over 60ºC, we are using a DC Alarm (model: M2SED) of which 4–20mA DC input is from a Thermocouple Transmitter (model: M2TS). Now we are planning to add one more set of a thermocouple sensor and a M2TS to be able to output an alarm when either one of the two sensors’ temperature rises over 60ºC. Is there a solution by adding a signal conditioner in front of a M2SED? |
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| 032156 |
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| 032160 | We are looking for a solution to monitor the peak value during a day of generated power by solar panel and display it on a large digital panel meter. The rated output from a solar panel is 0 to 24V and 0 to 8A DC. [ HTML ] [ MS Word 100k ] |
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| 032161 | We are upgrading a panel, and the Mini-M signal conditioners will be used. Those include the following models and etc. Current Loop Supply (model: M2DYS), Signal Transmitter (model: M2VS), RTD Transmitter (model: M2RS). Prior to the system start-up, loop tests are planned to conduct for the output loops of their signals. Signal generators can be used but it requires various types of signals and additional work for rewiring. Do you have a product which we can use with their base sockets and output the simulated 4 to 20mA DC signal? [ HTML ] [ MS Word 88k ] |
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