Code: SPI-638
  • flow meter, batcher, totalizer in wall mounted IP 67 housing
  • 1 pulse counting input + 3 control inputs
  • binary outputs REL / OC
  • analogue output: active or passive, power supply output: 24V DC
  • RS-485 / Modbus RTU
  • display of instantaneous and the total flow values
  • batching and counting of doses
  • ultra bright red, green and blue display
  • free configuration software S-Config

The SPI-638 flow counters encased in a tight, wall-mounted housing (IP 67) with 6-digit, large LED display are designed to work together with flow transducers equipped with contact or electronic inputs. The purpose of flow counters is to measure the instantaneous flow value and to record the total flow of media like liquids, gases or loose materials. A wide range of total flow indication (up to 16 digits) allows controlling the flow value for a long operation time. Thanks to the built-in batcher function the SPI-638 counters can be used in many industries like: food, pharmaceutical or paint and varnish industry. The REL / OC control outputs can be programmed depending on the instantaneous flow value, batcher or total flow value. Additionally the counter may be equipped with analogue outputs, according to the customer selection: active current output, passive isolated current output or active voltage output. The counter may be configured with no need to open the case, by using the remote controller the local keyboard or with free S-Config software via the RS-485 communication port.

Number of inputs
Input type
Input levels
low: 0...1V; high: 10...30V
Input frequency
max. 10 kHz
Output type
relay I=1A, U=30V DC/250V AC (cosø=1)
Open Collector: I=30 mA, U=30V DC, P=100 mW
0/4...20 mA: active current, operating range 0...24 mA max., load resistance 700 Ω max., resolution 13 bit
4...20 mA: passive current, isolated, operating range 2,8...24 mA max., load resistance 600 Ω@24VDC, resolution 13 bit
0/1...5V, 0/2...10V: active voltage, operating range 0...11V max., load resistance min. 2000 Ω, resolution 13 bit
Measurement method
electrical, pulse
Power supply
16...35V AC, 19...50V DC
85..260V AC/DC
LED, 6 x 38 mm, ultra bright (red, green, blue)
Communication Interface
RS-485 / Modbus RTU
Transmission parameters
1200...115200 bit/s, 8N1 / 8N2
Operating temperature
Protection class
IP 67
Case material
Case dimensions
230 x 140 x 96,5 mm