SCYLAR INT M

CALCULATOR

Application

The calculator SCYLAR INT M is a two-channel calculator for measuring thermal energy in heating and cooling circuits. It includes the functions of two calculators. 2 independent energy measurements can be made in one housing at the same time. It is highly suitable in an industrial surrounding. Billing-relevant data can be calculated in the range of local heating and district heating with very high precision. Due to its variety of additional functions it is also very well prepared for future requirements.

Features

Application for heating, cooling or climate calculator
Calculator fulfills the needs of the EN 1434
4 Flow sensor inputs, include 2 for energy measurement
4 Temperature inputs, for 2- or 4- wire measuring
2 Analog inputs
4 Active analog outputs for 0/4 - 20mA
4 Pulse outputs
1 M-Bus interface
1 Optical interface
1 USB-interface
1 Relay output
4 Further slots for extension modules (2^nd MBus .....)
12 Due days
Programmable interval memory
All basic adjustment are selectable with the 4 buttons

SCYLAR INT M

General

Type		mwz04
Calculator		Two channel heating and cooling calculator
Number of energy measurements		2 independent energy measurements in one housing
Approval		MID
Protection type		IP 65
Power supply		230 VAC
Volume pulse	kHz	max. 10¹
Pulse value	p/l	0.0001 to 99999.9999²
Temperature sensor		Pt 100 or Pt 500

¹ depending on the type of pulse generator
² depending of the flow sensor size

Basic Features

Environment class C after EN 1434
Ambient temperature °C 5 ... 55
Storage temperature °C -25 ... +70
Environmental condition mechanical: Class M1
Environmental condition electro magnetic: Class E2

Temperature-inputs

Temperature range	absolute	°C	-50 to +300
Temperature difference	absolute	K	ΔT min < 0.001 / ΔT max 350
Temperature measuring error	max	°C	≤ ± 0.04
Accuracy ∆T	typical	K	0.005
Measurement cycle		sec	1
Temperature range	MID Approval	°C	0 - 300
Temperature difference	MID Approval	K	ΔT min 3 / ΔT max 300 (Keeping of verification errors even at Δt 1K)
Temperature sensor type			Pt 100 or Pt 500
Temperature measuring			2 or 4-wire up to 100 m sensor cable if 4-wire measuring

Flow sensor-inputs

Measurement cycle	sec	1
max. Flow	m³/h	360 000 000
max. Power	MW	151 200 000
Pulse value	p/l	0.0001 to 99999.9999
Pulse width min	µs	50
Reed debounced	Hz	≤ 30
Open Collector	Hz	≤ 10 000
Open Emitter	Hz	≤ 10 000
CMOS/TTL	Hz	≤ 10 000
Namur	Hz	without trend identification ≤ 200
Namur	Hz	with trend identification ≤ 100
Active output sensor	Hz	≤ 10 000
Sensor supply	V / mA	8.2 ; 5.0/3.6

2 analog-inputs

Measurement accuracy % ≤ 1
Input signal mA 0(4)-20
Supply mA 25 at Input signal 0 (4)- 20 mA
Input signal V 0(2)-10
Supply V 11 - 27 at Input signal 0 (2) - 10 mA
4 active analog-outputs

Burden Ω ≤ 500
Output current mA 0 - 20
Output current mA 4 - 20
Overstepping mA 20 - 22
4 pulse-outputs

Switching frequency max Hz 500
Input voltage max V 40
Current max mA 100
1 relay-output

Switching frequency Hz ≤ 1
Input voltage max V 40
Current max A 1
Communication-outputs

M-Bus interface 1 piece ≤ 1 Unit Load
Optical interface 1 piece ZVEI
USB interface 1 piece USB 2.0
Extension slots 4 piece for optional moduls e.g.: 2^nd M-Bus,...
- Baud rate options: 300 to 9600 bauds
- Primary or secondary addressing
- Protocol selectable: M-Bus, EN 61107
- Answer telegram selectable
Power Supply

Power supply 230 VAC / 50 Hz ^{+10% / -15%}
Power supply on demand 1 110 VAC / 60 Hz ^{+10% / -15%}
Power supply on demand 2 24 VAC / 50 Hz ^{+10% / -15%}
Total input power max VA 17.5

Display

Units energy			kWh - MWh - GWh - MJ - GJ - TJ - kBtu - MBtu - GBtu - MCal - Gcal - TCal
Units volumen			m³ - l - US-Gal - Ft³
Units temperature			°C - °F- K
Total values			999999.999 - 9999999.99 - 99999999.9 - 9999999999
Values displayed			Energy - Power - Volume - Flow rate - Temperature and more

graphic display 64x128 with plaintext menu and back light

Chassis

Protection class IP65
Cable entry 6 piece PG7
Cable entry 6 piece PG11

Device

Tariff			8
Deadlines			12
Interval memory			60
Puffer battery			Lifetime without power supply > 6 years
Ambient class			C
Storage temperature			-25 ... +70 °C (battery lifetime: -10°C ... >3 years; -25°C ... >1 year)
Shielding			EMC
Calibrate change			simple separation from the upper part and lower part or simple removal of the connectors due to a plug system, removeable connection board with cable gland plate, DIN rail mounting of the housing
Measurement accuracy			EN 1434

Dimension

Overall length L mm 239.6
Width of calculator B mm 159
Height H mm 115
Verification change

In case the calculator needs to be exchanged (e.g. after the end of the verification period)
this can easily be done with just a few simple steps.

.) The simple disconnection via the plug system,
.) Removeable connecting plate,
.) Top-hat rail fixing of the housing,
.) or simple separation of the upper part form the lower part

enables a simple and fast exchange of the calculator.