Wiring procedure – Omega RD100B User Manual
Page 55
2-11
Before Using the Recorder
2
Wiring Procedure
1.
Turn OFF the recorder and remove the terminal cover.
2.
Connect the input signal wires to the terminals.
Philips
screwdriver
Crimp-on lug with
insulation sleeves
3.
Replace the terminal cover and fasten it with screws.
The proper torque for tightening the screws is 0.6 N-m.
Transistor input
(Open collector)
Relay contact input
(Voltage-free contact)
1
2
3
4
5
C
1
2
3
4
5
C
Relay contact output
C
NO
NC
Alarm output
FAIL/chart end output
Remote control input
Note
To reduce noise, use a shielded cable for the wiring of the remote control input terminals.
Connect the shield to the ground terminal of the recorder.
• Relay Contact Output Specifications
Output type:
Relay
Contact rating:
250 VAC (50/60 Hz)/3 A, 250 VDC/0.1 A (resistive load)
Dielectric strength:
1500 VAC at 50/60 Hz for one minute (between output
terminals and the ground terminal)
• Relay Contact Input/Transistor Input Specifications
Input signal:
• Voltage-free contact: Contact closed at 200 Ω or less and
contact open at 100 kΩ or greater
• Open collector: 0.5 V or less (30 mADC) when turned ON,
leakage current of 0.25 mA or less when turned OFF
Input format:
Photocoupler isolation (shared common)
Dielectric strength:
500 VDC for one minute between input terminals and the
ground terminal
2.4 Optional Terminal Wiring