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I.OVERVIEW
The MGG24C Converter of Japan Yamatake is used not only in general process test, but also in the test of mine pulp, paper pulp and pastry liquid.
II.CHARACTERISTICS
- Main power: AC100V,110V,115V/120V±10%
AC200V,220V,230V/240V±10%
DC24±10%
- Frequency: 50Hz or 60Hz
- Power assumption: ≤13W(17VA)
- Display and push-button: The three-line LCD display with back lighting is used to display the nerccntage of flow, the instantaneous flow and total flow.
- Arithmometer: It is used for accumulative counting of the right total flow, reverse total flow.
- Input signals:
a. Flow signal: voltage signal of the direct ration to the flow from the director.
b. Contact point input(free choice): solid contact point or nor-voltage contact point.
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Output signals:
a. Analog output: 4~20mADC
1. Without SFC communication: 0.8mA ~ 22.4mA(-20% ~+115%) Load resistance: 0~600Ω
2. With SFC communication: 3.2mA~22.4mA(-5%~+115%) External power supply for SFC communication: DC16~45V
3. Load resistance(Ω)=(external power supply -8.5V) /0.025
b. Data output: DE
c. contact point output (free choice): Open collecting electrode, Contact point capacitance 30 VDC maximum, 200mA maximum
1. Alarm output: Outputs an alarm under the following conditions: self-diagnostic result, empty detection and high/low limit alarm.
2. Range switching output: Outputs the status of flow range, large/small in dual range, normal or reverse.
3. Counter preset status output(for pulse output model): Activates when the counter reaches the preset value.
4. Self-check result output: Activates only when a self- diagnostic abnormality occurs.
5. Empty detection output: Activates only when an empty status is occurs.
6. Activates when the first high/low limit alarm(H/L) occurs and the second high/low limit alarm (HH/LL) occurs.
d. Pulse output(optional): Open collector, pulse frequency 2000Hz max, pulse width 0.3 to 999.9ms, random setting or fixed at 50% of the duty
e. Communication signal: With HART communication or FF field-bus
- Damping time: Adjustable between 0.5 and 199.9 seconds.
- Low flow cutoff: Adjustable between 0 to 10% of setting range. Below selected value, output is driven to the zero flow rate signal level
- Lighting protection: 12kV, 1000A Equipped with the lightning arrester in the power source and external input and output terminals
- Power failure: An EEPROM retains data record of totalized value when pulse output is used (retention period approximately 10 years) Frequency: 50Hz or 60Hz, DC24±10%
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