Featuring 5 digits of rate and 8 digits of total, the INVALCO 4300 is a battery- or loop-powered indicator capable of accepting magnetic pickup, DC pulse or switch closure inputs from pulse producing flowmeters. The unit can be ordered with an optional 4-20mA output (Models 4300-3I and 4300-3O). The 4300 uses the 4-20mA loop to provide power when this output is used.
Specifications
| Power | |
| Battery powered (Model 4300-3A) | Supplied with 2 C size Lithium batteries. |
| Loop Powered (Models 4300-3I and 4300-3O) | Voltage: 8.5 to 30 VDC Supplied with 2 C size lithium batteries Protection: Reverse Polarity Protection on Current Loop Loop Burden: 8.5V maximum |
| Battery Life Expectancy | Expected Years of Operation for 4300 of various powering options at equipment duty cycles |
| Model – Run Time, Idle, 2hrs/day, 8hrs/day, 24hrs/day | 4300-3A – 10 yrs, 10 yrs, 10 yrs, 8.4 yrs 4300-3I – Indefinite operation when loop powered 4300-3O – Indefinite operation when loop powered |
| Display | |
| Rate Display (selectable decimal) | 5 Digits (99999), 0.35″ High, Display updates once per second with model 4300-3A, 8X per second with 4300-3I or 4300-3O |
| Rate Descriptors | /SEC, /MIN, /HR for model 4300-3I/MIN, /HR, /DAY for models 4300-3A and 4300-3O |
| Min. Input Frequency | 0.01 Hz to 10 Hz (selectable delay of 0.1 to 99.9 seconds) Selectable Rate Display Damping |
| Totalizer Display | (Selectable decimal) 8 Digits (99999999), 0.2″ High |
| Totalizer Descriptors | Model 4300-3I: GAL, LIT, FT3, M3 Model 4300-3A and 4300-3O: GAL, BBL, MCF, M3 |
| Warning Displays | Low battery warning |
| Pulse Output | The pulse output advances with the least significant digit of the totalizer or decimal multiples there of (see Pulse scale divider). |
| Type | Isolated photomos relay |
| Max. voltage (off state) | 30 VDC |
| Current (on state) | 100mA |
| Pulse Duration | Selectable 0.5, 0.25, 0.125, 0.0625 sec. |
| Pulse Scale divider (Pulscale) | User selectable, ÷1, ÷10, ÷100 or OFF |
| Accuracy | 0.01% Reading, ±1 count Temperature Drift: 50 ppm/°C Worst Case |
| Environmental | |
| Operating Temperature | -4°F (-20°C) to + 158°F (70°C) Extended Temp: -22°F (-30°C) to + 158°F (70°C) |
| Humidity | 0 – 90% Noncondensing |
| Enclosure style | |
| Explosion Proof | Class I, Division 1, Groups B, C & D Class II, Division 2, Groups E, F & G |
| Approvals | CSA/NRTL Explosion Proof Listed LR91109 |
| Inputs | |
| Magnetic Pickup Input | Frequency Range: 0 to 3500 Hz Trigger Sensitivity: 10 mV p-p Over Voltage Protected: ± 30 VDC |
| Opto-Isolated DC Pulse Input | High (logic 1): 4-30 VDC Low (logic 0): Less Than 1 VDC Minimum Current: .5 mA Hysteresis: 0.4 VDC Frequency Range: 0 to 5 kHz Min. Pulse Width: 0.1 msec |
| Contact Closure Input (contact closure to common) | Internal Pullup Resistor: 100 KÙ to +3.6 VDC High (logic 1): Open or 4-30 VDC Low (logic 0): Less Than .5 VDC Internal Switch Debounce Filter: 0 to 40 Hz |
| Reset Input (contact closure to common) | Internal Pullup Resistor: 100 KÙ to +3.6 VDC High (logic 1): Open or 4-30 VDC Low (logic 0): Less Than .5 VDC Minimum On: 25 msec |
| K-Factor | Range: 0.001 to 99999999 Decimal Point Locations: XXXX.XXXX to XXXXXXXX 20 Point Linearization This feature allows the user to enter 20 different frequencies with 20 different corresponding K-Factors to linearize non-linear signals. |
| Analog Output (models 4300-3I And 4300-3O) | |
| Type | 4-20 mA follows rate display, Two wire hookup |
| Accuracy | 0.025% Full Scale at 20° C |
| Temperature Drift | 50 ppm/°C Typical Reverse Polarity Protected |
| Update Rate | 8 times/second |
| Data Storage | |
| Setup Information | Stored in flash memory |
| Totalizer | Stored in battery backed RAM but can be saved to flash memory by operator for recall after battery change out. |