ES-1371 Rev.8
EP
Plug-in Signal Conditioners M-UNIT
ULTRA-LOW FREQUENCY TRANSMITTER
(0.01 Hz minimum)
Functions & Features
• Converting the output from a pulse-type transducer into a standard process signal
• Excitation
• Isolation up to 2000 V AC
• High-density mounting
Typical Applications
• Positive displacement flowmeters, turbine flowmeters and vortex flowmeters
• Proximity switches
MODEL: EP–[1][2]–[3][4]
ORDERING INFORMATION
• Code number: EP-[1][2]-[3][4]
Specify a code from below for each of [1] through [4].
(e.g. EP-33-B/Q)
• Frequency range (e.g. 0 – 5 Hz)
• Special output range (For codes Z & 0)
• Specify the specification for option code /Q
(e.g. /C01/S01)
[1] INPUT
1
: Open collector (Excitation: 12 V @ 30 mA)
2
: Voltage pulse (Excitation: 12 V @ 30 mA)
3
: Mechanical contact (Excitation: 12 V @ 30 mA)
[2] OUTPUT
Current
A
: 4 – 20 mA DC (Load resistance 750 Ω max.)
B
: 2 – 10 mA DC (Load resistance 1500 Ω max.)
C
: 1 – 5 mA DC (Load resistance 3000 Ω max.)
D
: 0 – 20 mA DC (Load resistance 750 Ω max.)
E
: 0 – 16 mA DC (Load resistance 900 Ω max.)
F
: 0 – 10 mA DC (Load resistance 1500 Ω max.)
G
: 0 – 1 mA DC (Load resistance 15 kΩ max.)
Z
: Specify current (See OUTPUT SPECIFICATIONS)
Voltage
1
: 0 – 10 mV DC (Load resistance 10 kΩ min.)
2
: 0 – 100 mV DC (Load resistance 100 kΩ min.)
3
: 0 – 1 V DC (Load resistance 1000 Ω min.)
4
: 0 – 10 V DC (Load resistance 10 kΩ min.)
5
: 0 – 5 V DC (Load resistance 5000 Ω min.)
6
: 1 – 5 V DC (Load resistance 5000 Ω min.)
4W
: -10 – +10 V DC (Load resistance 10 kΩ min.)
5W
: -5 – +5 V DC (Load resistance 5000 Ω min.)
0
: Specify voltage (See OUTPUT SPECIFICATIONS)
[3] POWER INPUT
AC Power
B
: 100 V AC
C
: 110 V AC
D
: 115 V AC
F
: 120 V AC
G
: 200 V AC
H
: 220 V AC
J
: 240 V AC
DC Power
S
: 12 V DC
R
: 24 V DC
V
: 48 V DC
[4] OPTIONS
blank
: none
/Q
: With options (specify the specification)
SPECIFICATIONS OF OPTION: Q (multiple selections)
COATING (For the detail, refer to our web site.)
/C01
: Silicone coating
/C02
: Polyurethane coating
/C03
: Rubber coating
TERMINAL SCREW MATERIAL
/S01
: Stainless steel
GENERAL SPECIFICATIONS
Construction
: Plug-in
Connection
: M3.5 screw terminals
Screw terminal
: Chromated steel (standard) or stainless steel
Housing material
: Flame-resistant resin (black)
Isolation
: Input to output to power
Overrange output
: 0 to 120 % at 1 – 5 V
Zero adjustment
: -5 to +5 % (front)
Span adjustment
: 95 to 105 % (front)
INPUT SPECIFICATIONS
Excitation:
Shortcircuit protection
Pulse width (time) requirement:
10 msec. min. at
< 20 Hz; duty ratio 20 – 80 % at ≥ 20 Hz
■
Open Collector
Frequency range:
0 – 0.01 Hz through 50 Hz
Sensing:
approx. 12 V DC @ 3 mA
ON/OFF level
: ≤ 800 Ω / 2 V for ON,
≥ 1.2 kΩ / 3.6 V for OFF
■
Mechanical Contact
Frequency range:
0 – 0.01 Hz through 5 Hz
Sensing:
Approx. 12 V DC @ 3 mA
ON/OFF level
: ≤ 800 Ω / 2 V for ON,
≥ 1.2 kΩ / 3.6 V for OFF
■
Voltage Pulse:
Square or sine waveforms
Input pulse sensing:
Capacitor coupled; detecting pulse rise
Frequency range:
0 – 0.01 Hz through 50 Hz
Input amplitude:
2 – 50 Vp-p
Input impedance:
10 kΩ min.
OUTPUT SPECIFICATIONS
■ DC Current
: 0 – 20 mA DC
Minimum span
: 1 mA
Offset
: Max. 1.5 times span
Load resistance
: Output drive 15 V max.
■
DC Voltage
: -10 – +20 V DC
Span:
Min. 5 mV, max. 20 V
Offset
: Max. 1.5 times span
Load resistance
: Output drive 1 mA max.; at ≥ 0.5 V
INSTALLATION
Power input
•
AC
: Operational voltage range: rating ±10 %,
50/60 ±2 Hz, approx. 3 VA
•
DC
: Operational voltage range: rating ±10 %,
ripple 10 %p-p max., approx. 2 W (90 mA at 24 V)
Operating temperature
: -5 to +55°C (23 to 131°F)
Operating humidity
: 30 to 90 %RH (non-condensing)
Mounting
: Surface or DIN rail
Weight
: 350 g (0.77 lb)
PERFORMANCE in percentage of span
Accuracy
: ±0.1 %
Temp. coefficient
: ±0.015 %/°C (±0.008 %/°F)
Response time
: 0.5 sec. + 1 pulse cycle (0 – 90 %)
Line voltage effect
: ±0.1 % over voltage range
Insulation resistance
: ≥ 100 MΩ with 500 V DC
Dielectric strength
: 2000 V AC @1 minute (input to output to power to ground)
EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm [inch]
SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM