PESF4V01
2015 09 08
7
Data logger
capacity:
up to 1480 h – for hourly records.
up to 1130 days - for daily records,
up to 36 last months - for monthly records,
Archive data storage time not less than 36 months
Storage time of measured integrated parameters
even if device is disconnected from power supply not less than 15 years.
External communication modules and interfaces:
Optical interface
Integrated into the front panel of calculator. It is designed for data reading via M-bus protocol and
parameterization of the meter.
The optical interface starts work (is activated) only after pressing control button and automatically
shuts down after 5 minutes, after the last pressing any button or after completing data transmission via
interface.
Optional plug in communication modules:
M-Bus module
CL-module (Current loop)
LON module
MODBUS RS485
RF-module 868 MHz
MiniBus module
It is designed for data reading via M-bus protocol and parameterization of the meter.
I
f meter is powered from internal battery - the total working time of serial communication interface is
limited
up
to 200
minutes per month
( for protection of the battery against premature discharge). Unused
limit of communications are summarized. The interface is blocked after the expiration of a limit and only
after change of the hour, the new time limit of communications will be given (for 16 seconds for each
next hour).
Pulse outputs:
2 (OB-normal mode, OD-test mode)
Type: open collector, permissible current up to
20mA, voltage up to 50V.
Pulse duration: 125 ms – in the normal operating
mode, 1.2 ms – in the test mode
Pulse values on pulse output device in the operating mode as specified in the table below:
Permanent flow rate Q
3,
m
3
/h
1,6 ... 6,3
10 ... 100
Pulse value, l/pulse
1
10
Temperature measurement
(additionaly, by special order)
Temperature measuring ranges
0
o
C....180
o
C.
Temperature sensor type:
Pt500 by EN60751
2-wire connection method, cable length:
up to 5 m
Power supply
(one of following, dependently on meter configuration):
-
AA battery 3,6 V 2,4 Ah (Li-SOCl
2
) battery, exploatation time at least 11 years,
-
12…42 V DC or 12...36 V 50/60Hz AC external power supply, used current 20 mA and back up
battery AA 3,6 V (Li-SOCl
2
) , exploatation time at least 11 years (without reading data through
digital interfaces).
Mechanical data :
Dimensions of calculator
117 mm x 44 mm x 89,5 mm,
