ONICON System-10 P1 - Manual (Page 6)

11451 Belcher Road South, Largo, FL 33773 • USA • Tel +1 (727) 447-6140 • Fax +1 (727) 442-5699 • [email protected]
System-10-P1 Manual 10/14 - 0656-9 / 18320 Page 6
GENERAL SPECIFICATIONS
CALIBRATION
Flow meter and temperature sensors are individually
calibrated, followed by a complete system calibration.
Field commissioning is also available.
ACCURACY
Differential temperature accuracy ±0.15° F over calibrated range
Computing nonlinearity within ±0.05%
TEMPERATURE SENSORS
Solid state sensors are custom calibrated using N.I.S.T.
traceable temperature standards.
Current based signal (mA) is unaffected by wire length.
PROGRAMMING
Factory programmed for specific application
MEMORY
Nonvolatile EEPROM memory retains all program
parameters and totalized values in the event of power loss.
DISPLAY
Alphanumeric LCD displays total energy, total flow,
energy rate, flow rate, supply temperature and return
temperature
Alpha: 16 character, 0.2” high
Numeric: 6 digit, 0.4” high
P1 OUTPUT POINTS
Name Point Type/
Category
Units
Total Energy 3/LAI BTU, kW-hrs or ton-hrs
Energy Rate 1/LAI BTU-hr, kW or tons
Total Flow 3/LAI gallons, liters or meters 3
Flow Rate 1/LAI gpm, gph, mgd, l/s, l/m, l/
hr or m 3 /hr
Supply Temperature 1/LAI °F or °C
Return Temperature 1/LAI °F or °C
Delta T 1/LAI °F or °C
Energy Total Reset 1/LDO Not applicable
Flow Total Reset 1/LDO Not applicable
Auxilliary Input 1 3/LAI Pulse Accumulator
Auxilliary Input Reset 1/LDO Not applicable
ADDITIONAL OUTPUT SIGNALS
Standard: Isolated solid-state dry contacts for energy total
Maximum contact ratings: 100 mA, 50VDC
Contact duration: 0.5, 1, 2 or 6 seconds
(factory
selectable)
Optional: Multiple isolated analog outputs for energy rate,
flow rate, supply and return temperatures and delta T
(factory
selectable)
Output type: 4-20mA, 0-10 volt or 0-5 volt
(field
selectable)
Optional Interval Data Logging:
This option provides up to 24 hours of rate and
total data logging in 15 minute intervals. Data
includes date/time stamp, measured value &
scaling factors when appropriate.
LIQUID FLOW SIGNAL INPUT
0-15 V pulse output from any ONICON flow meter
TEMPERATURE RANGE
Liquid temperature range: 32° F to 200° F
Optional extended temperature range available.
Ambient temperature range: -20° F to 140° F
MAINTENANCE
ONICON recommends periodic inspection and recalibration
for sensors connected to the System-10 BTU Meter. No other
periodic maintenance is required for the main unit.
MECHANICAL
ELECTRONICS ENCLOSURE:
Standard: Steel NEMA 13, wall mount, 8”x10”x4”
TEMPERATURE SENSOR THERMOWELLS:
Standard: ½” NPT brass thermowells (length varies with
pipe size) with junction box
Note: 6” pipes and larger require SS thermowell option
Optional:
• ½” NPT stainless steel thermowells
• Outdoor junction box with thermal isolation
• Hot tap thermowells for installations in a pressurized
system
with no shutdown
ELECTRICAL
This equipment is intended for INSTALLATION CATEGORY
(OVERVOLTAGE CATEGORY) II applications.
INPUT POWER:
Factory
Selectable:
24 ±4 VAC 50/60 Hz, 500 mA
120 VAC 50/60 Hz, 250 mA
230 VAC 50 Hz, 250 mA
INTERNAL FUSE RATINGS:
24 VAC - 1 Amp Slo-Blo, 3AG Fuse
120 VAC - 1/4 Amp Slo-Blo, 3AG Fuse
230 VAC - 1/8 Amp Slo-Blo, 3AG Fuse
OUTPUT:
24 VDC, 250 mA maximum
OVERCURRENT PROTECTIVE DEVICE RATINGS:
Supply mains overcurrent protective devices with the
following
ratings:
120 VAC 50/60 Hz – 15 A
230 VAC 50 Hz – 6 A
WIRING:
Temperature signals: Use 18-22 ga twisted shielded pair
Flow signals: Use 18-22 ga shielded cable – see Flow Meter
Specification Sheet or Owner’s Manual for ONICON
Insertion Turbine Flow Meter for the correct number of
conductors
24 ±4 VAC input power: Use PVC jacketed copper cable with
a wire gauge suitable for the length of run and required
maximum current carrying capacity. The installation must
comply with all local, state and federal building codes.
120/230 VAC input power: Use a three wire service with one
wire protective earth ground. The installation must
comply with all local, state and federal building codes.
Note: Specifications are subject to change without notice.