Our Digital Scaler is a frequency divider signal converter that conditions and scales the output from a magnetic speed transducer mounted on a turbine flow meter into a desired unit of measurement acceptable to a RTUs or PLCs.
Download the Digital Scaler spec sheet:
The Digital Scaler's frequency division attribute, referred to as a K-factor, accepts signals unsuitable for PLCs and scales them to an acceptable unit of measure. If the K-factor, supplied by meter's manufacturer, is set to one, the Digital Scaler has an additional application as pre-amp that converts the frequency of a low flow turbine meter and generates a proportional logic level output needed by a computer or a PLC.
The conditioned input signal from a VR transducer is used by a circuit's micro-controller to divide the signal by a power of ten and then send the signal to a 12 binary scaler with a divisor range from 1 to 99,999,999. The scaler is equal to the sum of the binary and power of 8 numbers represented by each of the closed switches on the board. This scaler generates one output pulse to the output relay every time it receives a quantity of input pulses equal to the scaler number (K-factor).
The K-factor scaler's power supply input accepts 8.5 to 30 Vdc. The two models available are a Manually Adjustable Scaler model and a Preset Scaler model. They are easy to install in the field with a variety of configurations offered: in a NEMA 4 enclosure, the circuit card alone, or installed in a conduit-mount enclosure.
SPECIFICATIONS:
| Scaling | 1 to 99,999,999 |
| Input | VR speed transducer to 4 kHz with 30 mVpp to 30 Vpp sensitivity |
| Temperature range | -32 to 71° C (-25 to 160° F) |
| Output | 0 - Vsupply; NPN with adjustable probe width |
| Accuracy | +/- 1 count |