Specifications
Page 48
May 2020
DSY-PM-01378-EN-08
SPECIFICATIONS
Display
Common
Simultaneously shows Rate and Total
5 x 7 Dot Matrix LCD, STN Fluid
6 Digit Rate, 0�5 inch (12�7 mm) numeric
7 Digit Total, 0�5 inch (12�7 mm) numeric
Engineering Unit Labels 0�34 in� (8�6 mm)
Annunciators Alarm 1(
1
), Alarm 2 (
2
), Battery Level (
), RS485
Communications (
COM
)
Power
Auto switching between internal battery and external loop power; includes
isolation between loop power and other I/O
Battery
3�6V DC lithium D Cell gives up to 6 years of service life
Note: Modbus enabled at baud rate of 19,200 or higher without
loop power reduces battery life to 1 year
Loop
4…20 mA, two wire, 25 mA limit, reverse polarity protected, 7V DC
loop loss
Inputs
Magnetic
Pickup
Frequency Range
1…3500 Hz
Frequency Measurement Accuracy ±0�1%
Over Voltage Protection
28V DC
Trigger Sensitivity
30 mVp-p (High) or 60
mVp-p (Low) - (selected by
circuit board jumper)
Amplified
Pulse
Direct connection to amplified signal (pre-amp output from
sensor)
Outputs
Analog
4…20 mA
4…20 mA, two-wire current loop
25 mA current limit
Totalizing
Pulse
One pulse for each Least Significant Digit (LSD) increment of the
totalizer
Pulse Type
(selected by circuit
board jumper)
Opto-isolated (Iso) open collector transistor
Non-isolated open drain FET
Maximum Voltage
28V DC
Maximum Current Capacity
100 mA
Maximum Output Frequency
16 Hz
Pulse Width
30 mSec fixed
Status
Alarms
Type
Open collector transistor
Adjustable flow rate with programmable
dead band and phase�
Maximum Voltage
28V DC
Maximum Current
100 mA
Pullup Resistor
External required: 2�2k
ohm minimum, 10k ohm
maximum
Modbus Digital
Communications
Modbus RTU over RS485, 127 addressable units / 2-wire plus ground network,
selectable baud rate: 9600, 19200, 38400, 57600 or 115200, long integer
and single precision IEEE754 formats; retrieve: flow rate, job totalizer, grand
totalizer, alarm status and battery level; write: reset job totalizer, reset grand
totalizer
Data Configuration
and Protection
Two four-digit user selectable passwords; level one password enables job total
reset only, level two password enables all configuration and totalizer reset
functions
