E-880-2N-E
5. GENERAL SPECIFICATIONS
Table 5.1
Item
Description
Input
signals
Flow input
Signal name
Pulse
generator
Power to generator
Speed of
response
Contact closure pulse
－
.VDC
Allowable
current
0mA app.
Shortcircuit
protection
circuit
provided
0Hz
2-wire, 2VDC -wire
Voltage pulse
－
.VDC
2kHz
2VDC 2-wire
Current pulse (/20mA)
PA, 2
2.0VDC
Open collector pulse
－
.VDC
Pressure input
to 20mADC or to VDC
Output
signals
Pulse output
Total mass flow
Static relay Capacity: 20VAC/0VDC 0.2A
Pulse width: ms/0ms
Total calorific flow
Output sync with flow
input signal
Open collector pulse
Alarm output
Static relay Capacity: 20VAC/0VDC 0.2A
Analog output
Instant mass flowrate
to 20mADC (Max. load resistance 00
Ω
)
or to VDC (Output impedance 20
Ω
)
Conversion accuracy:
±
0.% of F.S.
Display type
Display: ST display (28
×
28 dots), backlighted (
※
), (
※
2)
Information displayed: Data, units, error message simultaneously
Menu
items
Total mass flow
Same as output pulse unit (kg, for example)
Display capacity: 8 digits
Total calorific flow
Same as output pulse unit (Mcal, for example)
Instant mass flowrate
(kg/h, for example)
Pressure
To the th decimal place (when MPa is selected.)
Correction factor
To the th decimal place
Correction factor 2
To the th decimal place
Meter error corr. fctr.
To the th decimal place
Meter correction fctr.
To the th decimal place
Specific weight
To the th decimal place (when kg/m
is selected.)
Specific enthalpy
To the 2nd decimal place (when kJ/kg is selected.)
Error alarm
Number of error messages
Comput-
ing range Pressure
0 to MPa Standard span: MPa
Com-
puting
accu-
racy
Mass flow
±
0.% of R.D.
Calorific flow
±
0.% of R.D.
Pressure
±
0.% of SPAN
Clock IC battery backup
Lithium battery (Battery life: 0 years approx.)
Communication (when com.
interface is provided.)
Interface: RS8 Multipoint (Up to units can be connected.)
Dedicated protocol Baud rate: 800 bps standard 00 bps max.
Power source
8 to 2VAC, 0/0Hz or 20 to 0VDC
Power consumption
20W max.
Ambient temperature
－
0 to
＋
0
°
C
Mounting
Panel mount
Finish
Munsell N.
Weight
2. kilograms, approx.
NOTES (
※
): ST display stands for Super Twisted Nematic display.
(
※
2): Backlight life (luminance declined to one half its original luminance) : 200 h.
