ISTEC CORPORATION
Flow Measurement & Control
5 Park Lake Road, Unit 6
Sparta, NJ 07871 USA
Tel 973-383-9888
Fax 973-383-9088
Email
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OFFICE HOURS
We will be closed on May 24th and May 27th, 2019 in observation of Memorial Day.
We will open again on Tuesday May 28th, 2019
Remember our troops in your prayers as they keep us safe on this Memorial Day.
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4400 Series Compact BTU (Energy) Meter
ISTEC’s 4400 Series Energy Meters are ideal for all Sub-Metering and Performance Verification applications. From a small two-unit apartment to a 400-unit co-op. Heating Model 4440 or Heating / Cooling Model 4450.
FEATURES
- Fully Electronic Compact Energy Meter
- Records Energy and Volume Data
- Highly-accurate Recording of Heating or Cooling & Heating Energy
- Horizontally or Vertically Mounted
- Lithium Battery Guarantees a Longer Life than Calibration Interval
- Single-line, 7-digit LCD Display for Easy Meter Reading
- Pulse Output for Energy or Flow
- 3/4" Union Connections
- Heating Systems
- Cooling Systems
- Combination Heating/Cooling Systems
- Solar Thermal Systems
- Water Source Heat Pumps
- Cogeneration
- Heat Reclaim Systems
- Efficiency Measuring/Verification
The Reduction of Lead in Drinking Water Act of 2011, has been amended to the Safe Drinking Water Act (SDWA) in effect as of January 4, 2014.
Our products include meters for potable use and for manufacturing, irrigation, toilets, or washing machines, which are excluded from the new regulations. Certain products we provide meets the new standard. Consult factory for more information and pricing.
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| TECHNICAL DATA FOR FLOW METER | ||
Flow Rate Range |
Max. GPM |
22 |
Continuous Flow GPM |
11 |
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Min. GPM |
0.11 |
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Head Loss at 11 GPM |
PSI |
3.5 |
Starting Flows |
GPM |
0.026 |
Operating Pressure |
Max. PSI |
150 |
Installation |
Mounting Position |
Any |
Weight |
LBS. |
2.18 |
TEHNICAL DATA for CALCULATOR
| Basic Features | Ambient Class | EN 1434 Class C |
| Protection Class | IP 54 | |
| Type | Compact Heat Meter to EN 1434 | |
| Metrological Class | Dynamics qp/qi100:1 Class 2 | |
| Display | Display Indication | LCD, 7-digit |
| Unit | MWh - kWh - GJ - MJ - kW - m3/h - l/h - m3- l | |
| Total Values | 9 999 999 - 999 999,9 - 99 999,99 - 9 999,999 | |
| Values Displayed | Power - Energy - Flow Rate - Temperature | |
| Temperature Input | Temperature Sensor Type | Pt 500 / 2-wire |
| Measuring Cycle (Ts) | 32 | |
| Temperature Measurement Range (°F) | 32 - 302 | |
Volume/Energy Pulse Open Collector |
Max. Frequency (Hz) | ca. 4 |
| Max. Input Voltage (V) | 30 | |
| Max. Input Current (mA) | 100 | |
| Max. Voltage Drop at Active Output (V/mA) | 2/27 | |
| Max. Current thru Inactive Output (µA/V) | 5/30 | |
| Max. Reverse Voltage without Destroying Outputs (V) | 6 | |
| Pulse Duration (ms) | 125 | |
| Min. Pulse Break-pause (ms) | 125 | |
| Supply Voltage | Operating Voltage (UN V DC) | 3, 0 (lithium battery) |
| Nominal Power (PN µW) | 30 | |
| PULSE OUTPUT
The outputs are open-collector circuits. The collector branch contains only 0 ohm resistance, i.e., there is no internal current limiting. If required, this must be provided externally by a collector resistor.
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Download PDF Version • Download Installation Manual • Download EN1434 Approval