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 (2nd MBus .....)
- 12 Due days
- Programmable interval memory
- All basic adjustment are selectable with the 4 buttons
-
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.: 2nd 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.