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Yokogawa 800Plus Universal Digital Meter & Counter

  • Customizable formats to fit your needs
  • Wide Choice of Measurement Items
  • Peak Display, Reset, and Alarm keys

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The 800Plus Universal Digital Meter is a versatile, cost effective solution to a wide variety of monitoring and control applications. The input can be changed by the user to any of the DC voltage and current, AC voltage and current, RTD and Thermocouple, Process and Frequency values listed above by re-locating shorting jumpers on the plug-in signal conditioner card. No calibration equipment is required when changing ranges since they are digitally pre-calibrated at the factory. Rescaling is accomplished via front panel pushbuttons. Optional alarms and outputs are also front panel programmable.

Menu Key
The menu key steps through the various meter parameters that may be selected. These menu items may be “locked out" from front panel selection by software and hardware.

Peak Display Key (Digit Select)
In the Operating Mode, pressing the Peak Display Key causes the peak value of the input signal to be displayed. Pressing the key again returns the display to the present value. In Menu Mode ,the Digit Select Key (Peak Display Key) is used to select input type and decimal point or to select one of the five display digits for programming. In the main menu, pressing the Digit Select Key causes the value or code that is stored for that menu item to be displayed and the left hand digit flashes. Each time the key is pressed, the next digit to the right will flash. The value of the flashing digit may be changed using the Value Select Key. In the Alarm Mode, pressing the Digit Select Key causes the most significant digit of the displayed set point value to flash. Digits are then selected the same as in the Menu Mode.

Reset Key (Value Select)
In the Operating Mode, holding the Reset Key depressed and pressing any other key causes are set to occur. The Menu Key resets all meter functions, the Alarm Key resets any alarm conditions and the Peak Display Key resets the peak value to present value. In the Menu Mode or Alarm Mode, the Value Select Key (Reset Key) sets the value of the flashing digit. Each time the key is pressed, the value increases by one. Holding the key down causes the digit to automatically step through the numbers.

Alarm Key (Reverse Menu)
In the Operating Mode, pressing the Alarm Key displays the set-point of Alarm 1 and then Alarm2. These values may be changed using the Digit Select Key and the Value Select Key. In the Menu Mode, pressing the Alarm Key steps the display backward through the menu.
 

800Plus Universal Digital Meters
Specifications DC Volt & Amp AC Volt & Amp RTD Temperature Thermocouple Process Monitor Strain Gauge Load Cell
Display General 7-segment LED, 14.2mm, .56” high digits
# of Digits 5 digits
Range -99999 to +99999
LED Indicators 2 status indicators
Color Red or Green
Accuracy Full scale or reading 0.01%FS ANSI 0.04°C TC type K
0.1°C
0.01%FS
±number of counts 1 - - 1
Span TEMPCO 0.003% of reading/°C- except load cell(0.0015% rdg./°C) & FR(±1ppm/°C typical)
Zero TEMPCO 0.1 counts/°C
Conversion General Patented A/D conversion method (US patent no. 5,262,780)
Update Rate 60/sec. @ 60Hz operation; 50/sec. @ 50 Hz operation
Output Update Rate (UDM) 56/sec. @ 60Hz operation; 47/sec. @ 50 Hz operation
Display Update Rate (UDM) 3.5/sec. @ 60Hz operation; 3/sec. @ 50Hz operation
Noise Rejection General Common Mode voltage from DC to 60 Hz safety rated to 250 VAC; 4.2 kVp per high voltage test
CMR (DC to 60Hz) 130 dB
NMR (50/60 Hz Line) 90 dB with minimum filtering
Case NEMA 4 (IP65) 1/8 DIN case made of high impact 94V-0 UL rated plastic
Environmental Temperature: Operating0°C~55°C, Storage-40°C~85°C; Relative humidity 95% at 40°C non-condensing
Operating Power General Frequency 47 to 440 HZ and DC, consumption 5.3 Watts maximum
Standard Universal power supply 85 to 264 VAC, 90 to 370 VDC
Option Universal power supply 8 to 28 VAC, 9 to 37 VDC
Frequency General Selectable with shorting jumpers on power supply printed circuit board (normal setting 10 VDC)
Outputs 5 VDC, ±5%, 100 mA max., 10 VDC, ±5%, 120 mA max., 24 VDC, ±5%, 50 mA max.
Isolation (power ground) Safety rated to 250 VAC, 4.2 kV peak per high voltage test
Dual Controller Option General NEMA 4 (IP65) 1/8 DIN case made of high impact 94V-0 UL rated plastic
Setup Set point values may be entered from front panel pushbutton or via RS-232 or RS-485
Output Operation Either may be set to operate above or below set point, latching or non-latching, or output disabled
Filtering Comparison to the set points may be from filtered or unfiltered input signal
Time Delay Selectable time delay of output status change from 1 to 128 readings
Lockouts Pushbutton control of display and change of set points, or display of set points, or disable
Alarm Status Indicators Either of two red LED’s may be set to indicate when output is on or off, or they may be disabled
Relay Output General 10 A at 240 VAC, 8 A at 24 VDC contact rating; safety certification: VDE, UL, CSA
Isolation Coil to contacts :Safety rated to 250VAC, 4.2 kV peak; Between open contacts :Withstand 1 kVrms
Response to input signal Pick-up:26 milliseconds typical; Release:22 milliseconds typical
Optotransistor output General Voltage rating:30VDC; Current rating:100 mA minimum at 1.2 VDC maximum
Isolation Safety rated to 250 VAC, 4.2 kV peak per high voltage test
Response to Input Signal 17 milliseconds typical
Analog Output Option General Power :provided by meter, Isolation: Withstand 3750 Vrms, 8mm creepage
Accuracy Use basic meter accuracy ±0.05% of analog output full scale
Response Time 17 milliseconds for unfiltered input, same as basic meter for filtered output
RS-232/RS-485 General Power :provided by meter; Isolation: safety rated to 250 VAC, 4.2 kVp per high voltage test
Baud Rates 300, 600, 1200, 2400, 9600, 19200
Type/Signal Levels Full duplex (RS-485) / meets RS-232 and RS-485 standards
BCD Output General Power : provided by meter; Isolation: safety rated to 250 VAC, 4.2 kVp per high voltage test
Type/Signal Levels Tri-state, stored parallel / LSTTL, CMOS compatible
Controls BCD Enable, Hold, Data ready
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  DC Volt & Amp AC Volt & Amp RTD Temperature Thermocouple Process Monitor Strain Gauge Load Cell
 
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