|
RLB-15¡«40 Heat measurable
Instrument
Function:
Function£ºThe function of this product is to measure the heat released
by the heating exchange system (heat piece) ,provide convenience
and settlement basis for both heat provider and heat receiver
Characteristic:
The meter is powered with battery and can work five years
under normal conditions¡¤The meter is built with internal memory
units so that data can be stored at set time and will not be
lost when changing battery.
The base table of this meter is used with new type heat water meter
with high wear proof function, endurance against high temperature
and long life span.
Application conditions:
Applicable media: water
Temperature is equal to or less than¡Ü90¡æ
Water pressure is equal to or less than 1.6Mpa
Application environment: Temperature -25¡æ---55¡æ
At temperature 40¡æ,£¨20¡«90£©%RH
Atmosphere pressure 86¡«106Kpa
Installation requirement:
Heat meter with proper sizes of caliber should be chosen according
to the caliber of pipe and flow at installation location before
the installation of heat meter.
Various range of temperature for measurement should be chosen according
the water temperature at entrance and exit before the installation
of heat meter.
Debris or foreign stuffs inside the pipes should be cleaned off
before the installation of he at
meter so as to avoid any potential problems in the base table of
the meter.
¡¤Please note whether the installation direction of heat meter is
the same with the direction of water current in the pipe when installing
the water meter.
Heat meter should be installed in horizontal position. Valves or
other switch units should be installed in the front or at the back
of the water meter so as to provide convenience for assembly and
disassembly of water meter.
At installation location, direct sunshine, water blood, frost or
pollution should be avoided and be convenient for assembly, disassembly
and meter copying.
The life span for battery is normally five years. In order to avoid
any accident, it is suggested to copy meters at set periods. If
battery is found as not sufficient, it should be changed at once
so as to avoid any loss in measuring heat quantity.
Main Technical Parameters
|
Model
|
Flux meter
£¨m3/h£©
|
|
|
Temperature sensor£¨¡æ£©
|
|
|
|
Metric flux
|
Separating
flux qt
|
Flux(min.)
|
Range of temperature for measurement
|
Range of temperature difference
|
|
RLB-15
|
1.5
|
0.15
|
0.06
|
4¡«90
|
3¡«90
|
|
RLB-20
|
2.5
|
0.25
|
0.1
|
4¡«90
|
3¡«90
|
|
RLB-25
|
3.5
|
0.35
|
0.14
|
4¡«90
|
3¡«90
|
|
RLB-32
|
6
|
0.6
|
0.24
|
4¡«90
|
3¡«90
|
|
RLB-40
|
10
|
1
|
0.4
|
4¡«90
|
3¡«90
|
Outer Dimension and Weight
| Model |
Caliber
mm |
Length
mm |
Width
mm |
Height
mm |
Connecting threads
D |
| RLB-15 |
15 |
165 |
98 |
159 |
G/4B |
| RLB-20 |
20 |
190 |
98 |
161 |
G1B |
| RLB-25 |
25 |
230 |
103 |
167 |
G11/4B |
| RLB-40 |
40 |
245 |
124 |
202 |
G2B |
contents of display
| Failure loop |
|
|
|
| Sequence display |
Contents of display |
Pattern shown |
Assistance mark |
|
1
|
Code and date for low pressure of battery |
E0 XX-XX£¨month-date£© |
Battery mark |
|
2
|
Flux failure code and date |
E1 XX-XX£¨month-date£© |
M3 mark |
|
3
|
Temperature failure code and date |
E2 XX-XX £¨month-date£© |
C mark |
|
4
|
EEPROM failure code and date |
E3 XX-XX£¨month-date£© |
|
|
5
|
Failure code and date for opening outer covers |
E4 XX-XX£¨Month-Date£© |
/ mark |
|
6
|
No failure |
Err no |
|
| When showing above parameters, marks of failure
loop will also be displayed |
| If no failure, display "Err no" £¬otherwise
failure code or related information will be displayed |
| Once failure is confirmed, this information will
not be changed. Only by clearing order, it can be cleared off. |
| Normal loop |
|
|
|
| Sequence display |
Contents of display |
Pattern shown |
Assistance mark |
|
1
|
Accumulated quantity of heat(or cold) |
XXXXXXXX KWh |
Accumulated Marks |
|
2
|
Accumulated flux |
XXXXXXXX m3/h |
Accumulated Marks |
|
3
|
Accumulated working hours |
XXXXX h |
Accumulated Marks |
|
4
|
Water temperature at entrance |
XXX.XX ¡æ |
Mark for water temperature at entrance |
|
5
|
Water temperature at exit |
XXX.XX ¡æ |
Mark for water temperature at exit |
|
6
|
Temperature difference |
XXX.XX ¡æ |
Mark for temperature difference |
|
7
|
Instant flux |
XXX.XX m3/h |
|
|
8
|
Present time |
XXXX.XX.XX£¨Year,Month,Date |
|
|
9
|
Present time |
XX:XX(hour:minute) |
|
| When showing the above parameters, status of battery
and present status of measurement for heat or cold will be also
displayed. If failure, failure loop mark will be flashed. |
| Statistic setting loop |
|
|
|
| Sequence display |
Contents of display |
Pattern shown |
Assistance mark |
|
1
|
Switch date for cold and heat(only effective for those instruments
measuring the quantity of heat and cold) |
CH XX-XX(Month-Date) |
|
|
2
|
Accumulated quantity of heat and cold before switch of cold
and heat.Effective only for those instruments measuring the
quantity of heat and cold) |
XXXXXXXX KWh |
Mark for cold or heat |
|
3
|
Date of max.flux£¨Month-Date£© |
qh XX-XX(Month-date) |
|
|
4
|
Max flux |
qh XXX.XX m3/h |
|
|
5
|
System setting |
q0 (q0 represents flux meter installed at entrance£¬ |
|
|
|
|
q1 represents flux meter installed at exit£© |
|
| When showing above parameters, statistic loop
mark will also be displayed. |
| Display contents in key operation when setting
loop. |
|
|
|
|
| Sequence display |
Parameters setting |
Contentsdisplay |
Pattern display |
Assistant mark |
|
1
|
Year setting |
Present date |
XXXX£®XX£®XX£¨year.month,date.) |
Year (flashing) |
|
2
|
Month setting |
Present date |
XXXX£®XX£®XX£¨year.month,date.) |
Month(flashing) |
|
3
|
Date setting |
Present date |
XXXX£®XX£®XX£¨year.month,date.) |
Date(flashing) |
|
4
|
Hour setting |
Present time |
XX:XX£¨hour£ºminute£© |
Hour(flashing |
|
5
|
Minutesetting |
Present time |
XX:XX£¨hour£ºminute£© |
Minute(flashing |
|
6
|
|
|
CLr Err |
Flashing display -failure |
|
|
|
|
|
|
|
|
Failurecleared off |
|
Err No |
Flashing display-no failure or failure cleared off |
|
7
|
|
|
CLr qh |
Flashing display-Max flux is not 0 |
|
|
|
|
qh 0.00 m3/h |
Flashingdisplay-max flux is 0 |
|
|
Max flux cleared off |
Set to measure quantity of cold |
¡° SET COOL ¡± |
Flashing display |
|
8
|
Return to normal loop |
|
|
|
| Related parameter of instrument |
|
| Display mode |
8bits LCD£¬2 keys for display |
| Switch of cold or heat |
Automatic mode.(entrance water temperature>returned water
temperatureTemperature difference>2¡æIf continued time is
over 15 minutes, measure the heat quantity. Otherwise, measure
the cold quantity. |
| Range of temperature |
4¡æ¡«95¡æ |
| Range of temperature |
3K¡«90K |
| Temperatureresolving power |
0.01¡æ |
| Calculationpressure |
0.6Mpa |
| Power supplier |
Lithium battery |
| Life period of battery |
5 years |
| ApplicationEnvironmenttemperature |
-25¡æ---55¡æ |
| Transport storage temperature |
-40¡æ----60¡æ |
| Environment grade |
C grade |
| Pulse output£¨selectable£© |
Light-separated double pulse output, one is for heat display,
the other is for alarm |
Note£º
Note;
When accumulated quantity of heat or cold increases by each 1KWh
or 1MJ, there produces one pulse. 250 ms pulse width is selectable,
but this specification needed to be stated in advance, otherwise
once the product is shipped out of the factory, it's impossible
to change to this specification. the impulse output is photocoupler
output
The electrical current(max) for the output load is 2.5 mA, if sampling
by pulse, the recommended current is 1mA.It can be connected with
resistor Ca end pulling up or Eb end pulling down.
Output circuit for alarm is as below. When failure happens, C2,
32 will transmit once each hour, transmission time is 500ms.
It can be connected with resistor Ca end pulling up or Eb end pulling
down.
Appendix1
Ò»£® RLB-15¡«40 compound type instrument for checking the quantity
of heat and cold.
Basic composition and measurement principle.
1.1 RLB-15-40 type instrument
Basic composition
RLB-15-40 type instrument is composed by three parts of flux meter,
related temperature sensor and calculation instrument. The three
parts can also be separated as independent parts. Each part can
make measurement independently and can also be changed independently.
1.2 RLB-15-40 type instrument
Measurement principle
Hot water (or cold water) enters from the water entrance pipeline
with certain temperature into the heating exchange system(heating
piece, pipes etc),the users can get heat(or cold) from the heating
exchange system, meanwhile the hot water(or cold water) will be
discharged from the water exit pipeline with quite lower(or quite
high) temperature. The below formula shows the quantity of heat(or
cold) which users obtains within this limited time.
| Q |
-- |
Release or absorb heat (J orWh) |
| q |
-- |
Quality and flux of water passing through heat and cold measurable
instrument(kg/h) |
| q |
-- |
Cubic flux of water passing through heat and cold measurable
instrument.(m3/h) |
| ¦Ñ |
-- |
Density of water passing through heat and cold measurable
instrument£¨g/m3£© |
| ¦¤h |
-- |
Enthalpy value difference of water under the temperature in
the entrance and exit gate at heating exchange system.(J/kg) |
| t |
-- |
Time(h) |
|
