Standards Specifications (5)
Name Frequency b
Model EP3
2-wire type: On/Off contact, voltage pulse, current pulse
Input signal (Internal distributor may be used to supply power to transmitter)
3-wire type: Voltage pulse, internal distributor may be used to supply power to transmitter
Input frequency 0 to 10 kHz (Low level b cut off point 0.01 Hz)
100. frequency 0.1 Hz to 10 kHz
Zero elevation Between 0 to 50 % of b frequency
Measuring range and low Can be changed by BRAIN terminal (*1)
level b cut off point
Main. Input pulse b On time: 60 _s Off time : 60 _s (for b frequency 0 to 6 kHz)
On time: 30 _s Off time : 30 _s (for b frequency 6 to 10 kHz)
Contact b: Relay contact, transistor contact
Detection level Open: more than100 kΩ
Closed: less than 200 Ω
Contact capacity: at least 15 V DC, 15 mA or more
Input signal level Voltage/current Pulse b:
EL (low level): -1 to +8 V DC
Eh (high level): +3 to +24 V DC
Voltage swing: (Eh-El): ≥ 3 V pp (for b frequency 0 to 6 kHz )
Signal source resistance: ≥ 5 V pp (for b frequency 6 to 10 kHz )
1 k? or less
Internal load resistance Selected for 200 Ω, 500 Ω or 1 kΩ, Jumper pin on the card (for current pulse b)
Input filter 10 ms, ON/OFF for setting Jumper pin
Internal distributor 12 V DC 30 mA or 24 V DC 30 mA. Set for Jumper pin
Output signal 1 to 5 V DC, 2 outputs (output resistance: 1 Ω max., load resistance: 2 kΩ min.)
Accuracy rating (*2) Within _0.1 % of span
Signal isolation Isolated between b and output signals, and b signal and power supply b
Mounting b Mounted in special nests (signal and power supply are connected via backboard and connector)
Wiring External wiring: Connected to M4 screw terminals for b/output inspecial nest, I/O card:
Special cable (connector connection)
External dimensions 73 (Width)x24 (Height)x115 (Depth) mm (including knob)
Weight 75 g
Isolation resistance Between b and output signals, b signal and power b: at 500 V DC,100 MΩ
Between output signal and power b: at 500 V DC, 100 MΩ
Withstanding voltage Between b and output signals, b signal and power b: 1500 V AC for 1 minute
Between output signal and power b: 500 V AC for 1 minute
Power voltage 24 V DC _10 %
Maximum current 110 mA
consumption (24 VDC)
Ambient conditions 0 to 50 _C /5 to 95 % RH (non-condensing)
Effect of ambient Max. _0.2 % of span for 10 _C change
temperature change
Effect of power supply Max. _0.1 % of span for change of 24 V DC _10 %
voltage change
*1: Valid number of digit is 4 for the range and low cut off point.
*2: Accuracy rating for the second output is _0.2 %.
EP3橫河 EP3*A頻率輸入卡 EP3*A橫河頻率輸入卡
