Metrima F2 User manual

F2 Calculator
A metering component for thermal energy applications
User’s Manual
Rev 08.24.2007

1 Installation
1.1 At delivery
F2 calculators are delivered in the Transport Mode. Only the clock is active and no
measurements can take place in this mode. The Transport Mode is indicated by a "no"
in the upper left hand corner of the display screen. Before beginning installation, the
meter needs to be set to operating mode. To move the F2 out of transport mode, simply
press and hold the display button for approximately five seconds. Depending on the
factory settings of the calculator, it will then enter either Service Mode, or go directly
into Operation Mode. You can tell which mode the calculator has entered by looking at
the upper left hand portion of the display window – “no” will have been replaced by
“00” when entered into Service Mode, or “10” if entered into Operation Mode. If your
calculator goes into Service mode, please refer to section 4 for further details.
Note: In order to complete the installation the F2 must be set to “Operation Mode”.
Fig. 1.1a, Transport Mode

4
1.2 Connections
The screw terminal blocks are located under the plastic cover on the rear side of the
calculator. Note: a seal protects the cover’s retaining screws.
Numbering
according to
EN1434
Terminal
Block
Marking
Description
9 3V
Flow sensor power supply (+)
10 Kt
Flow sensor (+)
11 0
Flow sensor (-)
5 F
High temperature sensor (H)
6 F
High temperature sensor (H)
7 R
Low temperature sensor (L)
8 R
Low temperature sensor (L)
16 P1
Pulse input/output 1 (+)
17/19 0
Pulse input/output 1 and 2 (-)
18 P2
Pulse input/output 2 (+)
60 A1
Siox input (option)
61 B1
Siox input (option)
24 MBUS M-Bus input
25 MBUS M-Bus input
Fig. 1, Connection terminal F2
11 5 6 7 8 16 17/19 18
A1 B1 MBus MBus
ThisCalculatorisequppped with pulse outputs
9
0FFRR P1 0 P2 AKt3V
50 60 61 24 25
Fig. 6, Labels on the on the backside of the F2 cover.

5
2 Mounting
The F2 can be mounted either on a wall, or on the flow meter
itself.
2.1 Mounting on a flow sensor
The adapter allows the calculator to be mounted vertically or
horizontally, see fig 2.1. Attach the calculator to the adapter
with the provided retaining screw.
1. Screw for attaching the adapter
2. Guide rails
3. Adapter
2.2 Wiring
The F2 has six holes for connecting cables.
To ensure proper sealing, it is vital that the
diameters of cables are of the following
gauges:
1. Flow sensor and temperature
sensor: 16-18 gauge.
2. Spare (communication)
16-18 gauge.
2.3 Dimensions
All dimensions are in [mm].
2.1. 3.
Fig 2.1
2 1
Fig. 2.2
Fig. 2.3b, Wall Adapter

6
2.4 Installation test
When installation has been completed, a simple test can be done to
verify that the calculator has been installed correctly. Watch the very
lower left hand corner of the main display. If the flow sensor is
supplying a pulse, it will result in a blinking square. If the F2 is
receiving a pulse from the flow meter, then installation has been a
success. Now is also a good time to become familiar with recognizing
and cycling through the display sequences provided by the F2. Simply
press and hold the “Display” button on the front of the calculator.
2.5 Instantaneous values
Calculations for instantaneous power (display sequence ”20”) and instantaneous flow (display sequence ”21”)
follow these rules:
As long as the time between the flow sensor pulses is longer than five seconds, flow and power are calculated
and displayed for each flow sensor pulse.
When the time between pulses is less than five seconds, the pulses are added together for approximately five
seconds and then displayed.

3 Handling
3.1 Display
Every F2 is equipped with an LCD (Liquid Crystal Display). The data retrieved by the calculator is organized
and accessible through display “sequences” visible on the LCD. The left-most digits indicate the current selected
sequence. The right-hand digits show the relevant value for the currently selected sequence. A tap of the display
button results in a move to the next value in the your current sequence. To change to a new sequence, press and
hold the Display button until the left-hand digits starts to increment. Release the button at the desired sequence.
The right-hand digits will now display the values and readings related to your newly selected sequence.
If you wish to return the display to the original sequence, simply do not press the display button for ~60 seconds.
The display is configured as below:
1. Sequence digits
2. Flow sensor pulse indicator
3. Relevant value shown here, maximum 7 digits
4. Arrow that indicates unit for displayed value
OPTO interface
m³/ h kW°Cm³
F2
MadeinSweden Nr: 000433
Display
button
16
xx
11
10 xx 20 xx xx 70
Fig. 3.6.1.1, Tap to toggle to next value. Press and hold to enter next sequence.
HOLD
PUSH

8
3.2 Display sequence table
10 Accumulated energy (Default position)
11 Accumulated volume according to flow sensor
1
12 Display test, see fig.3.2
13 Accumulated volume for pulse input 1
14 Accumulated volume for pulse input 2
15 Error code, see Error code
16 Error time, [Minutes]
20 Momentary power
21 Momentary flow
22 High temperature, 0 decimals
23 Low temperature, 0 decimals
24 Temperature difference, 1 decimal
30 Account days, when values are stored, [YYMMDD]
31 Account days, Accumulated energy
32 Account days, Accumulated volume according to flow sensor
33 Account days, Accumulated volume according to energy
calculation
34 Account days, Accumulated volume pulse input 1, [gal]
35 Account days, Accumulated volume pulse input 2, [gal]
36 Possible error code, at time of storage of account days
37 Possible accumulated error time, at the time of storage account
days, [Minutes]
40 Monthly registers, date when values are stored, [YYMMDD]
41 Monthly registers, Accumulated energy
42 Monthly registers, Accumulated volume according to flow sensor
43 Monthly registers, Accumulated volume according to energy
calculation
44 Monthly registers, Accumulated volume pulse input 1, [m3]
45 Monthly registers, Accumulated volume pulse input 2, [m3]
46 Possible error code, at time of storage of monthly register
47 Possible accumulated error time, at the time of storage,
[Minutes]
4x Following monthly registers (loop back)
50 Operating time, [Hours]
51 Relevant date, [YYMMDD]
52 Relevant time, [HH.MM]
53 Recommended date for battery replacement, [YYMMDD]
60 Communication address, Primary address
A0 Communication address, Secondary address (normally same as
meter S/N)
bx Calculator serial number (S/N)
63 Pulse value [l/p]
64 Placing of flow sensor, [H/L], L = Low, H = High
70 Accumulated volume corresponding to accumulated energy
73 Last remote reading of accumulated energy
74 Time since latest remote reading of accumulated energy, [Hours]
75 Accumulated total error time, [Minutes]
1The calculator has two values for accumulated volume. Sequence 11 is calculated
relative to flow pulses. Value 70 is incremented in conjunction with energy
calculation.

9
Error codes
Error codes are shown in display sequence ”15”.
Code Description
0001 Break in low temperature sensor (L)
0002 Short circuit in low temperature sensor (L)
0004 Break in high temperature sensor (H)
0008 Short circuit in high temperature sensor (H)
0005 Error code combination 0001 + 0004
000A Error code combination 0002 + 0008
0040 Low flow
0100 Battery replace
m
e
nt recommended
Display sequence “15” - error codes

4 Service
Note: Do not attempt to change any values until you have read and understand all
sections of this manual. If you have any questions, please contact TCT before
attempting to access or alter any values in this mode. After installing the F2, please
bypass this mode by skipping through to the exit sequence as shown below in table
4.1
As mentioned in section 1, most calculators will enter the Service Mode upon
installation and exit of the Transport Mode. The Service Mode allows for changes to
certain parameters of the calculator. If you wish to re-enter the Service Mode, use the
following steps:
1. Break the seal to the Service button (fig 3.2) on the rear side of the calculator
with a small screwdriver.
2. Press and hold down the Display button on the front of the calculator.
3. While holding the Display button pressed, use the screwdriver to press and
hold the Service button.
4. Keep the Service button and Display button pressed for ~5 seconds.
5. First release the Display button, then release the Service button.
The calculator is now in the Service mode, and the display will show ”00” in the upper
left-hand corner as confirmation.
To leave the Service mode follows the same procedure described above.
Navigating through the Service sequence and changing values
This is similar to cycling through the F2’s main LCD sequences as discussed in section
3. Tapping the Display button alters the value for the blinking digit. To change to the
next digit, hold the Display button pressed until next digit starts to blink. To change to
the Service sequence hold, the Display button pressed until next service sequence is
reached (indicated by the left-hand digits).
Note: The changed values are not saved until the next sequence is displayed.
Service Sequences
2.1.0 Time
”00” is the real time clock, with the right hand digits representing the format HHMM.
2.2.1 Date
”01” the relevant date in the format YYMMDD
2.2.2 Pulse value
”02” and ”03” indicate pulse values. ”02” is the sequence for the pulse value itself and
”03” denotes the number of decimals applied for the pulse value.
Example 1 The pulse value shall be 2.5 [l/p]. “02” shall be 2500, and ”03” shall be 3.
E.g. 2500 with 3 decimals = 2.5 [l/p].
Example 2 The pulse value shall be 10 [l/p]. “02” = 1000, ”03” = 2. E.g. 10 [l/p].
2.2.3 Account days
”04” and ”05” are account days with the format MMDD. F2 calculators can store up to
two. To deactivate the account days set MMDD to “0000”. For most applications, this
sequence can be skipped.

12
Fig. 3.2a, Service button
Se rvic e
Test
Save data
Service button
2.2.4 Communication address
”06” is the communication address. The address is set with four digits. Skip this
sequence unless intending to implement a remote reading device, such as Mcomm.
2.2.5 Flow sensor placing
”08” sets flow sensor placing, format ”0” or ”1”.
0 = Flow sensor installed in low (cold)
1 = Flow sensor installed in high (hot)
2.2.6 Reset the accumulated error time
”07” is the reset value for accumulated error time. Format “0 or “1”.
0 = Reset error time
1 = Do not reset error time
2.2.7 Recommended date for battery replacement
”09” sets the battery replacement date, format YYMMDD.
2.2.A Exit service mode
”0A” allows you to exit the service mode depending on which value is set:
0 = Return to sequence “00”
1 = Exit Service Sequence
4.1 Service sequence table
Table 4.1, Service sequence,
Service
sequence Description
00 Time [hhmm]
01 Date [YYYMMDD]
02 Pulse value for flow meter,
without decimal placing, 4 digits
03 Pulse value decimal placing, 0-4
04 Account days 1, MMDD
05 Account days 2, MMDD
06 Primary communication address, set
with 3 digits, e.g. ”5” is set ”005”.
07 Reset stored error time
0 = Reset stored error time (default)
1 = Do not reset error time
08 Flow sensor placing,
0 = Installed at low end (L / cold)
1 = Installed at high end (H / hot)
09 Recommended battery replacement
date. Do not change without
consulting with TCT Solar.
0
A
Exit service sequence,
1 = EXIT
2 = return to service sequence ”00”

13
5 Seals
1. Service seal
2. Test seal
3. Electronic seals
4. Installation seals
SV
SV SV
SV
SV
1
3
4

6 Technical data
6.1 Power supply
Battery 3V – 2.2Ah
Maximum operation time: 10 yrs
Table 7.1, Power supply
6.2 Temperature sensors
Approved and matching pairs of temperature sensors of the type Pt 100 or Pt 500 are to
be used, with a maximum current of 4 A for PT100.
Cable area
[gauge] Maximum cable length for
PT100 sensors [ft]
24 8.2
20 16.4
18 24.6
15 49.2
Table 7.2, Cable areas for PT100
6.3 Flow sensors
Flow sensor with pulse output.
Max. frequency [Hz] 12
Pulse value range [l/p] 0.0001-9999
Min. pulse length [ms] 40
Max. voltage [V] 3
Max. cable length [ft] 49.2
Table 7.2, Technical specifications
6.4 Temperature range
Temperature range 0 - 374°F
Temperature difference 2 – 120K
Table 7.4, Temperature range
6.5 Ambient temperature & temperature class
F2 complies with the prerequisites for Environmental Class C according to EN1434.
Ambient temperature
storage/transport -4°F to 158°F
Ambient temperature
operation 41°F to 131°F
Table 7.5, Ambient temperature ranges

16
6.6 Flow sensor placing
F2 can be configured for flow sensor placement in high or low end of the pipe (supply
or return pipe). This is marked H = high (hot) or L = low (cold) in display sequence
“64”.
6.7 Maximum values for power
The values below represent MWh and standard decimal setting
Pulse value
[l/p] Maximum power [ MW ]
1.0 3.3
10.0 33.0
100.0 330.0
2.5 3.3
25.0 33.0
250.0 330.0
Table 7.7, maximum power displays relative to pulse values
6.8 Dynamic behavior
Instantaneous measurements are calculated for each flow sensor pulse, when the time
between the pulses is five (5) seconds or longer. If the time between pulses is less than
five seconds, measurements takes place every pulse and are added for 5 seconds. When
the period between the flow sensor pulses exceeds 60 seconds, a measurement takes
place every 60th second. For this kind of measurement, only the temperature is updated.
6.9 Data output interface
M-Bus acc. to
EN1434-3 Via OPTO-interface (EN60870-5)
bus connection (terminals)
Table 7.9, data output interfaces

17
6.10 Pulse outputs
F2 can be equipped with two pulse outputs for Energy (pulse output 1) and Volumetric
values (pulse output 2).
The last digit and unit of energy will determine pulse weight. Example: sequence “10”
(energy) on display is shown “1001.01” MWh => pulse weight = 0.01 MWh/pulse.
Pulse output 1
Energy - one pulse per display update in the energy register (sequence “10”).
Pulse output 2
Volume - one pulse per display update in the flow register (sequence “11”).
Pulse value [ms] 250
Voltage [V] 3 – 30
Maximum current [µA] 20
Table 7.10, Pulse output data
6.11 Pulse inputs
Standard F2s are equipped with two pulse inputs. The pulse inputs can be
used for measuring another meter equipped with pulse outputs. The pulse
inputs can be set as volume registers. These registers accumulate the pulses
into two volume registers with the value [gal].
Frequency [Hz] 12
Min. pulse duration [ms] 40
Max. Voltage [V] 3
Table 7.11, Pulse inputs
6.12 Alarm output
The F2 is equipped with one alarm output. The alarm output sends a pulse every hour as
long as an error code exists. The pulse duration 250 [ms] can be altered using the
“Service program” version 2 or higher in 125 [ms] increments.
Alarm frequency when an
error exists Once every hour
Pulse [ms] 250
+3V

7 Appendix
7.1 Decimal placing F2
The decimal setting for F2 follows utility standards.
Pulse value
[l/p] MWh GJ m³ KWh MBTU kW m³/h
1.0 0.001 0.001 0.001 0.1 0.001 0.01 0.001
10 0.01 0.01 0.01 1 0.01 0.1 0.01
100 0.1 0.1 0.1 - 0.1 1 0.1
1000 1 1 1 - 1 1 1
2.5 0.001 0.01 0.01 0.1 0.01 0.01 0.001
25 0.01 0.1 0.1 1 0.1 0.1 0.01
250 0.1 1 1 - 1 1 0.1
2500 1 1 1 - 1 1 1
Table A1
7.1.1 Decimal placing
Pulse value
[l/p] m³
1.0 0.001
10 0.01
100 0.1
1000 1
2.5 0.01
25 0.1
250 1
2500 1
Displayed values on the F2 calculator will vary depending on the set pulse value, and follow
the diagram below. Smaller pulse values result in readings to more decimal places than
larger pulse values.

19
7.2 Ordering Key
F2 ABCDEFGHIJ KLM
A 1 Pt100 2-wire measurement, flow in low temperature
A 2 Pt100 2-wire measurement, flow in high temperature
A 5 Pt500 2-wire measurement, flow in low temperature
A 6 Pt500 2-wire measurement, flow in high temperature
B 1 Battery supply
B 2 Bus supply
B 5 24 VAC
C 0 Kt Input 2.5 l/p
C 1 Kt Input 25 l/p
C 2 Kt Input 250 l/p
C 3 Kt Input 2500 l/p
C 4 Kt Input 1 l/p
C 5 Kt Input 10 l/p
C 6 Kt Input 100 l/p
C 7 Kt Input 1000 l/p
C 8 KWh
D A MWh
C B GJ
C C MBTU
D 0 Standard order
D 1 Special, Extra information at the order, e.g. customer information
D 2 Pulse Inputs, 2.5 l/p, dec. 2
D 3 Pulse Inputs, 25 l/p, dec. 1
E - Pulse Inputs, 250 l/p, dec. 0
E S Pulse Inputs, 1 l/p, dec. 3
F 1 Pulse Inputs, 10 l/p, dec. 2
F 2 Pulse Inputs, 100 l/p, dec. 1
F 3 Pulse Inputs, 1000 l/p, dec. 0
F 5 Pulse Outputs
F 6 Backlight on display (not recommended on battery supplied meters)
F 7 No Backlight
F 8 For wall mounting, with adapter incl.
F 9 Compact mounted with Hydrometer BR431
G 0 Compact mounted with other flow sensor, with adapter in
c
l.
G 1 With adapter for BR471
G 4 With out adapter
G 5 Standard
H 0 Standard
H 1 Country code, 3 = Standard English
H 2 Standard
H 3 Standard
H 4 Pt100 2-wire measurement, flow in low temperature
I - Pt100 2-wire measurement, flow in high temperature
J 1 Pt500 2-wire measurement, flow in low temperature
K 1 Pt500 2-wire measurement, flow in high temperature
L 0 Battery supply
M 0 Bus supply