Heating Model P/N 4440 Heating / Cooling Model P/N 4450

COMPACT ENERGY METER
Heating Model P/N 4440
Heating / Cooling Model P/N 4450
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FEATURES
APPLICATIONS
Heating Systems
Cooling Systems
Solar Systems
Ground Source Heat Pumps
Co-Generation
Heat Reclaim Systems
TYPICAL ERROR GRAPH
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Fully electronic compact heat meter or compact
cooling & heat meter for recording energy and volume data
Highly accurate recording of heating or cooling & heating
energy at temperatures up to 195 °F
Can be mounted horizontally or vertically
Lithium battery guarantees a longer life than calibration interval
Single-line, 7-digit LCD display for easy meter reading
Pulse Output for Energy or Flow
¾” Union Connections
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HEAD LOSS DIAGRAM
+7
+6
+5
+4
+3
+2
+1
0
-1
-2
-3
-4
-5
-6
-7
10
100
1000
Flow rate [l/h]
qp 1,5
qp 2,5
1.000
Head loss [mbar]
Error [%]
qp 0,6
Tolerances to EN 1434 class 2
®
Typical Measuring RAY-HEAT
100
10 000
10
10
100
1.000
10.000
Flow rate [l/h]
TECHNICAL DATA for Flow Meter
Flow
rate
ranges
Head loss at 11 gal/min
Starting flows
Operating pressure
Installation
Weight
Maximum GPM
Nominal Flow GPM
Minimum GPM
PSI
GPM
Maximum PSI
Mounting Position
LB.
22
11
0.11
3.5
0.026
150
Any
2.18
H
H1
DIMENSIONS
L
5.12"
L1
10.20"
H
2.96"
H1
3.94"
L
L1
TECHNICAL DATA FOR CALCULATOR
Ambient class
Protection class
Type
metrological class
Basic
features
Display
TemperatureInput
Volume - /
energypulse
Open Collector
(high current
sink)
RAY
Supply-V*
voltage
EN 1434 class C
IP 54
Compact heat meter to EN 1434
Dynamics qp/qi100:1 class 2
Display indication
Unit
Total values
Values displayed
Temperature sensor type
Measuring cycle
Absolute temperature measurement range
Max. frequency
Max. input voltage
Max. input current
Max. voltage drop at active
output
Max. current through inactive output
Max. reverse voltage without
destroying outputs
Pulse duration
Min. Pukse breakpause
E* Operating voltage
Nominal power
T
°F
Hz
V
mA
LCD, 7-digit
MWh - kWh - GJ - MJ - kW - m3/h - l/h - m3- l
9 999 999 - 999 999,9 - 99 999,99 - 9 999,999
power - energy - flow rate - temperature
Pt 500 / 2-wire
32
32…302
ca. 4
30
100
s
V/mA
µA/V
2/27
5/30
V
ms
ms
UN VDC
PN µW
6
125
125
3,0 (lithium battery)
30
EXAMPLE
RAY
V*
E*
PULSE OUTPUT
The outputs are open-collector circuits. The collector
branch contains only 0 ohm resistance, i.e. there is no
internal current limiting. If required, this must be provided externally by a collector resistor.
#
10 k !
#
10 k !
Ground
Ri " 5 x Rv
U
30 V
Rv = –– Rv = –––– = 10 k !
3 mA
I
*Cooling & Heat Meter
*EC= Energy cold (white)
*EH= Energy heat (green)
Volume*
Energy*
(green)
(white)
Ri
Ri
GND
(brown)
+ 30 V
#
3 mA
Ri " 5 x Rv
U
30 V
OPERATION
Rv = –– Rv = –––– = 10 k !
The
3 mAdisplay has two loops.
I integrator
OVERVIEW OF LOOPS
❑ Main loop
Main Loop
Service loop
Window 1
Window S 1
Window 2
Window S 2
................
Window S 3
Button is pressed for
< 3 sec
Button is pressed for
< 3 sec
Button is pressed for
> 3 sec
❑ Service loop
The main loop is configured to display the data for current
energy and energy on reading date. The service loop displays
the current data for flow rate, temperatures, power, volume
and next reading date.
A button is mounted on the front panel of the meter. This can
be pressed for a short or long time. A short press of the button (< 3 seconds) switches to the next display within a loop
and a long press (> 3 seconds) switches between the display
loops.
................
Note
The LC display has a power save mode, which is activated by pressing a button. The display switches off automatically and changes to the power save mode if the
button is not pressed for 5 minutes.
HEAT METER
❏ MAIN LOOP
Accumulated energy
since initial operation
Button pressed for
< 3 sec
+
+
H
Segment test of LC display, then
automatic change to date reading
Attention: changeover time
4 sec.
8,8,8,8,8,8,8
– all on –
H
Basic display
+ meter is active
1234567
3 sec. / 1 sec.
7654321
– all off –
14, 03, 06
Energy on reading date in
selected energy unit
Reading date
Alternates between Energy H –>
heat on reading date and reading
date. (3 sec. / 1 sec. )
If the first reading date has not yet
been reached, the production date
is shown.
❏ SERVICE LOOP
Button pressed for
< 3 sec
s1
1, 0 0 0
current flow in m3/h
s2
4 6, 7
forward temp., always in °C to
1 decimal place
s4
8, 5
temp. difference, always in
°C to 1 decimal place
s5
4, 5 0 0
current power, always in kW,
even if basic display
e.g. in MWh *1 *2
sH
31, 12, 06
next reading date
DD.MM.YY
s1
2,3,4,5,6,7,8
Attention:
First digit of the 8-digit
serial number after the
service loop display
secondary address 8 digits
Button pressed for > 3 sec
s3
3 8, 2
return temp., always in °C to 1
decimal place
sH
6, 4 6 7
accumulated volume since
initial operation in m 3 *2
s6
119,02,01
FW-Version number
119 –> Complete FW version
02 –> FW version of part not subject to calibration
02 –> FW version of part subject to calibration
Decimal places
*1 Main display no decimal place –>3 decimal places
*2 Decimal place in main display –> decimal place same as main display
COOLING & HEAT METER
❏ MAIN LOOP
Accumulated cold since
initial operation
+
Accumulated heat since
initial operation
Button pressed for
< 3 sec
H
+
C
1 2 13 24 35 46 57 6 7
calibrated memory
1 2 13 24 35 46 57 6 7
uncalibrated memory
8,8,8,8,8,8,8
8,8,8,8,8,8,8
– all on –
C
3 sec. / 1 sec.
7 6 75 64 53 42 31 2 1
cold on reading date
H
1 2 13 24 35 46 57 6 7
heat on reading date
– all off –
14,03,06
14, 03, 06
cold reading date
14,03,06
14, 03, 06
heat reading date
Basic display
+ meter is active
H –> Heat
Segment test of LC display, then
automatic change to date
reading
Attention: changeover time 4
sec.
Alternates between energy on
reading date and reading date
( 3 sec. / 1 sec.)
If the first reading date has not
yet been reached, the production date is shown.
C –> Cold
H –> Heat
❏ SERVICE LOOP
s1
1, 0 0 0
Button pressed for
< 3 sec
current flow in m3/h
s2
5, 7
forward temp., always in °C to
1 decimal place
s5
4, 5 0 0
current power, always in kW,
even if basic display
e.g. in MWh *1 *2
sC
6, 4 6 7
accumulated volume since
initial operation in m3 *2
sH
31,12,06
next reading date
heat DD.MM.YY
s1
2,3,4,5,6,7,8
Attention:
First digit of the 8-digit
serial number after the
service loop display
secondary address 8 digits
Button pressed for > 3 sec
s3
1 2, 2
return temp., always in SW
version number
°C to 1 decimal place
s4
-6,5
temp. difference, always in °C
to 1 decimal place with sign
sH
3, 5 6 7
accumulated heat volume since
initial operation in3 *2
sC
31, 12, 06
next reading date
cold DD.MM.YY
s6
119,02,01
FW-Version number
119 –> Complete FW version
02 –> FW version of part not subject to
calibration
02 –> FW version of part subject to
calibration
Decimal Places
*1 Main display no decimal place –>3 decimal places
*2 Decimal place in main display –> decimal place same as
main display
ISTEC CORPORATION
5 Park Lake Road, Sparta, NJ 07871
973 383 9888 (Phone)
973 383 9088 (Fax)
Email: sales@istec-corp.com
Web: www.istec-corp.com
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