Power supply: AC/DC 100 to 240V, DC 12 / 24 / 30 to 90V
Power consumption: 8.5VA (all functions output)
Accuracy: ±0.03% F.S.
Display screen: High brightness red LED - 20.3mm (0.8")
Display range: 0 to 99999
- 10 cycles / sec: >10Hz
- f cycles / sec: <10Hz
Analog output resolution: 15 bits
- Voltage output: <20mA
- Current output: <10V
Output response time: <250 msec (0 to 90%)
Communication: RS-485 Modbus RTU mode
Baud rate: 38400 / 19200 / 9600 / 4800 bps
Polarity indication: Automatic with "-" indication
Parameters setting: Push buttons
Back up memory: EEPROM
Temperature coefficient: 100ppm/°C (0 to 60 °C)
Operating temperature: 0 to 60 °C
Operating humidity: 20 to 90% RH (non-condensing)
Storage temperature: -10 to 70 °C
Storage humidity: 20 to 90% RH (non-condensing)
Dimensions: 96 × 48 × 112 mm
The signal input for this meter can come from a range of NPN/PNP or dry contact sensors. An external excitation voltage is supplied at the back of the unit for sensor power. As shipped from the factory, the unit is configured for 12 VDC excitation supply and NPN or dry contact input. Internal jumpers can be moved to set 5 VDC excitation or PNP input type.
A separate jumper enables a low pass filter, useful for input frequencies less than 100 Hz. By default, the unit ships with the full 100 kHz input frequency range available.
Display units and modes:
The SCALE and PPR (Pulse per Revolution) settings allow the input frequency to be scaled to just about any units desired. The meter has some functions built in that make common scaling configurations easy.
The type setting applies fixed scaling appropriate for direct frequency display (no additional scaling), RPM display (scales pulses per second to pulses per minute) and line speed, which scales pulses accounting for the diameter of a pickup wheel or drum.
- Frequency: Displays input frequency / PPR setting × SCALE setting
- RPM: Displays input frequency × 60 / PPR setting × SCALE setting
- Line speed: Displays input frequency × 60 × ? / PPR setting × SCALE setting
A second scaling setting is activated when in line speed mode. The drum or wheel diameter (set by the SCALE parameter) is configured in meters, but by setting the UNIT parameter, the display can be set to show line speed in meters/min, yard/min or feet/min.