Product List
BT30 - Ratemeter, Totalizer
- 5-digit ratemeter display, 8-digit totalizer display
- Magnetic pickup input, contact closure input, DC pulse input (optically isolated)
- UL/C-UL intrinsically safe listed
- Optional 4 ... 20mA analogue output
- Isolated high/low flow rate alarm output
- Nonvolatile flash memory of setup data
- Powerer by internal battery, external DC or 4…20mA output loop
- Optional RS485 Modbus communications and data logger
- Setup software available for easy progoramming and monitoring
Applications
- Working with FTB / FPW / FGR series
Specifications
| Power supply | |
| Battery powered | Supplied with 2 C size lithium battery pack |
| External power input | Voltage: 8.5 ... 30 VDC; Current: Less than 5 mA; Supplied with 1 C size lithium battery for standby operation; Protection: reverse polarity protection on DC power input. |
| Loop powered | Voltage: 8.5 to 30 VDC; Supplied with 1 C size lithium battery for standby operation; Protection: reverse polarity protection on current loop; Loop burden: 8.5V maximum. |
| Display | |
| Flow rate display (selectable decimal) | 5 Digits (99999), 0.35” High, Display updates once per second with battery power, 8x per second with DC or loop power; Rate descriptors: /SEC, /MIN, /HR, /DAY with “D” selectable |
| Totalizer display (selectable decimal) | 8 digits (99999999), 0.2” High; Totalizer descriptors: GAL, LIT, FT3, M3, “blank”; GAL, BBL, MCF, M3, “blank” with “D” selectable |
| Warning displays | Low battery warning |
| Output | |
| Alarm output | Type: Opto-isolated photomos relay; Max. voltage (off state): 30 VDC; Current (on state): 100 mA |
| Analog output (option) | Type: 4-20 mA follows rate display, Two wire hookup; Accuracy: 0.025% of F.S. at 20° C |
| Input | |
| 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; Frequency range: 0 to 5 kHz |
| K-FACTOR range | 0.001 to 99999999 |
| Temperature | -20℃ … +70℃; optional -30℃ … +70℃ |
| Humidity | 0 - 90% noncondensing |
| Communication | RS-485; optional RS-232 |