Fluidwell E018

E018-P
FW_E018-P_M_v0302-02_EN Page 53
DATA PROTECTION
Backup EEPROM backup of all settings (running totals every minute; data retention at least 10 years)
Password Configuration settings can be password protected
A.2 INPUT
FLOWMETER
Type P Coil / sine wave (COIL-HI: 20mVpp or COIL-LO: 90mVpp sensitivity selectable), NPN, PNP,
reed switch, NAMUR, active pulse signals 8 or 24 VDC
Frequency Minimum 0Hz - maximum 10 kHz for total and flowrate. Maximum frequency depends on signal
type and internal low-pass filter. E.g. reed switch with low-pass filter (max. frequency 120 Hz)
K-Factor 0.000010 - 9,999,999 with variable decimal position
Low-pass filter Available for all pulse signals
Type ZF 10 mVpp coil input sensitivity
Type ZG 5 mVpp coil input sensitivity
RESET TOTAL
Function Terminal input to reset total remotely or to lock the “Clear total” button
Type IB Internally pulled-up switch contact - NPN
Pulse duration 100 msec (minimum)
A.3 OUTPUT
DIGITAL OUTPUT
Function Transmitting flowrate alarm status; linearized accumulated total (scaled pulse) or input pulse
retransmission
Alarm Maximum update rate: 8Hz
Scaled output Output D1-D2: max. frequency 500Hz.
Output D3-D4: max. frequency 4Hz.
Output D5-D6: max. frequency 4Hz, recommended use below 0.5Hz.
Pulse length user definable between 1msec up to 10 seconds
Retransmission output Square wave output based on frequency of (sine wave or coil) input signal. Maximum frequency
10 kHz with a 50% duty cycle, minimum on and off-time 50 µs
Type OR Two isolated electro-mechanical relay outputs (NO).
Maximum voltage: 250 VAC / 30 VDC
Maximum resistive load: 1 A
Maximum inductive load: 0.5A (pilot duty applications).
Note 1: Requires 24 – 27 VDC and supplied via P5 - P6.
Note 2: Type OT remains available.
Note 3: Not used in pulse retransmission mode.
Type OT Four passive transistor outputs (NPN) - not isolated. 300 mA – 50 V @ 25°C
ANALOG OUTPUT
Function Transmitting linearized flowrate
Type AH Galvanically isolated, loop powered 4 – 20 mA output
Accuracy 12 bit. Error 0.03% @ 20°C (Typical 45 ppm/°C).
Can be scaled to any desired range
Supply voltage 10V (lift-off voltage) - 27VDC
Max load 700 ohm @ 24VDC (24V – 10V / 20mA)