ECM7, ECM8, ECM9
Electronic Control Modules ECM7, ECM8 and ECM9 are similar in all respects except with respect to the blower
Difference
| Electronic Control Module Type | ECM 7 | ECM 8 | ECM 9 |
| Compatible Blower | BT 2 | BL 1 / NL1 | BL2 |
Similarities- Specifications - Common to ECM7, ECM8, ECM9
| LCD Display | 32 Character Alphanumeric LCD Module with blue backlit |
| Number of Keys | 6 |
| Real Time Clock (RTC) | Yes for Setting Delay Time and Sampling Time |
| Settable Sampling Start Delay Time | Programmable through RTC |
| Settable Sampling Time | Upto 199 hrs. 59 mts. |
| Electronic Time Totalizer Range (Cumulative Sampling Time) | Upto 199 hrs. 59 mts. |
| Automatic Sampling Start / Stop Control |
Fully programmable electronic timer to automatically shut off system after preset time interval. |
| Additional sampling control facility | Nil |
| Cyclic Mode Programming | Programming ON / OFF Time in cyclic mode |
| Flow Measurement Basis | Flow is inferred from differential pressure (Δp) across an exhaust orifice |
| Δp measurement device | Pressure sensor |
| Flow inferring technique | Computed programmatically |
| Displayed Flow Range | 0.2 to 1.8m3/min |
| Flow Setting Range | 0.6 to 1.8m3/min |
| Digital Flow Display | Provided |
| Flow Control Mode | Automatic Closed Loop Feedback |
| Flow Control Accuracy | 2% of set value |
| Volume Totalizer Range | upto 9999 M3 STP Corrected ? |
| Temperature Measurement (for STP correction) | Solid State Temperature Sensor |
| Internal Memory for data storage | Capable of storing data pertaining to 10 samples |
| Parameters Stored in internal memory | Sampling time; volume, minimum, maximum and average flow; the minimum & maximum ambient temperature |
| Addition information stored in internal memory | Average flow, Constant Flow Volume, Non Constant Flow Volume with respective time stamps, log of power interruptions with details on durations and time |
| Communication port(s) for PC interface (PC functions as Host and ECM as device) |
Serial Port, USB Port |
| PC Interface software | Windows based Software includes facility to acquire and save data from control module including flow data and power interruptions for further processing and plotting flow data in circular chart format indicating flow variation over 24 Hours It also facilitates programming all sampling parameters including Start and Stop time etc. |
| Safety Features | Automatic Stoppage of Sampling due to under voltage, over voltage, low flow & high Flow conditions. |