SRP-94 4 digit panel meter is designed for measuring of typical current or voltage signals. Thanks to a wide range of characteristic curves (linear square root, quadratic, user-defined and volume characteristic for cylindrical tanks) the meters may be used in various process control systems. The 24V DC / 100 mA output is designed to supply measuring transducers, and the RS-485 port enables data transmission in production process monitoring systems. The REL / OC control outputs can adjust the level of measured signal and are controlled according to one or two threshold values. Moreover, the meter can be equipped with analogue outputs, according to the customer selection: active current output, passive is0lated current output or active voltage output. The meter can be configured with the local keyboard or free S-Config software via the RS-485 communication port.
| Inputs | current 0-20 mA or 4-20 mA, programmable, input resistance < 65 Ohm (typ. 55 Ohm), overload-protected, input current limited to 40 mA; voltage 0-5 V, 1-5V, 0-10V or 2-10V, programmable, input resistance > 50 kOhm; milivoltage 0-60 mV, 0-75 mV, 0-100 mV, 0-150 mV; programmable; input resistance > 100 kOhm |
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| Power consumption | for 85 ÷ 260V AC/DC and 16V ÷ 35V AC power supply: max. 4,5 VA; 19V ÷ 50V DC power supply: max. 4,5 W |
| Outputs | 0, 2 or 4 relays 1A/250V AC (cos fi=1) or the OC 30mA/30VDC/100mW; transducer power supply output: 24V DC +5%, -10% / max. 100 mA, stabilized, not insulated from measuring inputs |
| Case material | NORYL- GFN2S E1 |
| Protection class | IP 65 (front), available additional frame IP 65 for panel cut-out sealing; IP 20 (case and connection clips) |
| Operating temperature | 0°C ÷ +50°C (standard), -20°C ÷ +50°C (option) |
| Display | LED, red (green on request), 4 x 20 mm brightness adjustable in 8 steps |
| Power supply | 19V ÷ 50V DC; 16V ÷ 35V AC or 85 ÷ 260V AC/DC |
| Measurement range | -999 ÷ 9999 (SRP-94) or -99999 ÷ 999999 (SRP-946) + decimal point |
| Accuracy | ± 0,25% ± one digit in the entire operation range |
| Analogue outputs | (available with 2 x REL or OC, see ordering): active current: operating range 0/4-20 mA (max. 0-24 mA), load resistance 700 Ω max., resolution 13 bit passive current: isolated, operating range 4-20 mA (max. 2,8-24 mA), load resistance 600 Ω@24VDC, resolution 13 bit; active voltage: operating range 0/1-5V, 0/2-10V (max. 0-11V), load resistance min. 2000 Ω, resolution 13 bit |
| Communication interface | RS-485, 8N1 and 8N2, 1200 bit/s ÷ 115200 bit/s, Modbus RTU (not galvanically isolated from measuring inputs) |
| Stability | typ. 50 ppm/°C |
| Storage temperature | -20°C ÷ +70°C |
| Case dimensions | 96 x 48 x 100 mm |
| Case | panel mounting |
| Panel cut-out dimensions | 90,5 x 43 mm |
| Installation depth | min 102 mm |