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timers and counters
timers and counters
- Inputs: Accepts pulse signals from two flow-meters with contact (NO) or PNP/NPN sensor types. Maximum input frequency is 5 kHz with programmable low-pass filtering.
- Power Supply: Options include 230 VAC, 115 VAC, 90-250 V, 12-24 V (isolated or non-isolated), and 24 VAC.
- Display: Two 6-digit LED displays for current flow rates, math results, and total counts.
- Output: Includes relay electromechanical, solid state relay, MOS gate, and transistor gate options. Output pulse duration is programmable between 0.02 to 1.2 seconds.
- Environmental Conditions: Operating temperature range is -10 to 65 °C with humidity up to 85% RH. Storage conditions allow for -20 to 65 °C and up to 95% RH non-condensing.
- Programmable math block for calculations such as A-B, A+B, A*B, A/B, A/(A+B).
- Programmable relay output for dosing functions when a certain total value is reached.
- Sensor excitation voltage ranges from 5 to 24 VDC.
- DIN-sized front panel with dimensions of 96x48 mm and a mounting depth of 98 mm.
- Plastic case material with IP54 front protection, optional IP65.
- Mounting in a 90x42 mm panel cut-out with plug-in terminals.
Catalog excerpts
2-channel Flow-rate Counter CT34SB ♦ Accepts pulse signals from 2 flow-meters ♦ Fully-programmable math block ♦ Two 6-digit LED displays ♦ Indicates current flows, math result, total counts ♦ Programmable relay output ♦ Sensor excitation voltage 5...24 VDC ♦ Programmable input filtering ♦ 96x48 DIN-sized front panel CT34SB is a specialized 2-channel fully programmable flow-rate totalizing counter. The instrument is especially designed to measure pulse signals from 2 different flow-meters according to the functional block-diagram below: Counter software allows a convenient programmable scaling of both measured flow signals and applying various calculations on both flow rates. CT34SB is equipped with two 6-digit LED displays indicating current flow-rates, mathematically calculated values as well as accumulated total counts. The counter has also an optional relay output for generating impulse when certain total value is reached (dosing function). Technical specifications Inputs Counting inputs Input type Active front Maximum input frequency Input filter Scaling coefficients Totalizer range Math functions (1) Ask for availability! (2) ONLY with isolated power supply! Power supply Ordering code CT34SB - G1.G5 - #1 Code Feature or option Code values G1 Power supply A - 230 VAC, B - 115 VAC, C - 90...250 V, P - 12.24 V, non-isolated, Q - 12.24 V, isolated, R - 24 VAC X - none, C - relay NO/NC, D - SSR (1), E - open collector NPN (2), J - for external SSR, M - isolated MOS gate (1) #1 Increased front protection X - none, P - IP65 front protection COMECO reserves the right of changing specifications without prior notice! Comeco Inc., P.O.Box 378, Plovdiv 4000, BULGARIA, tel: +359 32 646524, fax: +359 32 634089, e-mail: [email protected]
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