No. SS2-MCM100-0100 Azbil Corporation - 2 - For converter FUNCTIONAL SPECIFICATIONS Type of protection IEC IP65 (for indoor use) Input signal Temperature (two inputs: supply and return) 3-wire Pt 100 .. sensor IEC751 “Tolerance class A” is recommended. Output signal Analog output 4 to 20mA DC (flow rate) Load resistance: 0 to 400 .. Pulse output Open collector (calorific value consumption) Contact capacity: 30 V DC max., 100mA max. Pulse frequency: 500 Hz max. Pulse width: 1ms to 1s Adjustable between 1ms and 1s or fixed at 50% of duty. Pulse scale: 0.01, 0.1, or 1 in the selected calorific unit. Calorific unit GJ, MJ, Gcal, Mcal, MBTU, kBTU Display Display: LCD Main display: 7-segment, 8 digits for totalized calorific value of consumption. Sub display: 16 digits, 2 lines for mode indication, % flow rate, calorific unit, and supply and return fluid temperatures. Data setting Operation by four key switches. Damping (for flow rate) Adjustable between 0.5 and 199.9 seconds. Low flow cutoff (for flow rate) Adjustable from 0 to 10% of the setting range. If below the selected value, the output will be driven to the zero flow rate signal level. Dropout (for flow rate) Adjustable from 0 to 10% of the setting range. If below the selected value, the pulse output will be cut. Empty pipe detection If the detector is empty, analog output and pulse output will be fixed at zero. The flow rate on the display will be zero and “EMPTY” will be written on the display. Temperature sensor compensation By inputting resistances at 0°C and 100°C, the deviation of two Pt 100 .. sensors (supply and return) is cancelled. Failure diagnostics If the converter malfunctions, the analog output will be automatically fixed at 3.6mA. Power failure An EEPROM retains a data record of the totalized values of the consumed calorific value for both cooling and heating modes. Power supply 24 V DC ± 10% Power consumption 2.4 W max. Ambient temperature limits 0 to 50°C Ambient humidity limits 5 to 85% RH (no condensation) Optional specifications Traceability certificate The following three documents are included. - Trance-ability system chart - Trance-ability certificate - Test report PHYSICAL SPECIFICATIONS Case material Polycarbonate Case cover material Polycarbonate INSTALLATION Cable gland Plastic gland (5 pieces) Cable Applicable cable outer diameter Power supply/outputs: .. 6 to .. 12 mm Temperature sensor inputs: .. 4 to .. 8 mm Applicable cable conductor Power supply: AWG 14 to 22 (0.32 to 2.03 mm2) Outputs/temperature sensor inputs: AWG 16 to 26 (0.13 to 1.31 mm2) Mounting Integral only Grounding Grounding resistance should be less than 100 ...