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KYZ/RS485 Port Specifications
RS485 Transceiver; meets or exceeds EIA/TIA-485 Standard:
Type:
Min. Input Impedance:
Max. Output Current:
Wh Pulse
KYZ output contacts (and infrared LED light pulses through face plate):
(See Section 6.4 of Chapter 6 for Kh values.)
Pulse Width:
Full Scale Frequency:
Contact type:
Relay type:
Peak switching voltage:
Continuous load current:
Peak load current:
On resistance, max.:
Leakage current:
Isolation:
Reset State:
Infrared LED:
Peak Spectral Wavelength:
Reset State:
Internal Schematic:
NC
C
NO
(De-energized State)
e
Electro Industries/Gauge Tech
Two-wire, half duplex
96kΩ
±60mA
90ms
~3Hz
Solid State – SPDT (NO – C – NC)
Solid state
DC ±350V
120mA
350mA for 10ms
35Ω
1µA@350V
AC 3750V
(NC - C) Closed; (NO - C) Open
940nm
Off
3600
[
]
=
T
s
IR LED Light Pulses
Through face plate
90ms
LED
LED
OFF
ON
Through Backplate
NC
NC
C
C
NO
NO
Doc# E149701
Output timing:
Watthour
⋅
P[Watt] - Not a scaled value
Kh
pulse
Kh – See Section 6-4 for values
[
]
P
Watt
90ms
LED
LED
OFF
ON
KYZ output
Contact States
NC
NC
C
C
NO
NO
LED
OFF
NC
C
NO
2-7
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