Paperless Recorder – Simex MultiLog SRD-N16 Series


  • Universal inputs: RTD + TC or U + I (SRD-99)
  • Fixed inputs: RTD, TC, U, I (SRD-N16)
  • 2 relay outputs
  • Memory up to 3 000 000 records
  • Quick data transfer via ports: USB Host (USB flash drive), USB PC (wire), RS-485 (Modbus RTU)
  • Display measured values in °C or °F
  • 12V AC/DC (11-16V DC/10-13V AC) power supply
  • backlight: amber or white
  • panel or wall mount version

The MultiLog SRD-N16 device is designed to record and display current values as well as to present technological parameters in the form of charts. The instrument can be equipped with up to eight temperature (RTD / TC), current or voltage inputs, one digital input for the recording process control and one USB Host port for flash data storage. However, due to a significant number of configured parameters it is advised to use the attached configuration software for PCs.

SRD-N16 has 2 relays with max. load 1A/250V AC enclosed within the unit. Main function of outputs is a signalisation of critical situations, but thanks to expanded menu it is possible to use it in numerous control and regulation applications. Both outputs can be driven by single measurement channel or by group of channels (from 1 to 8) with individually adjustable thresholds for every measurement channel. Signalisation of output state is made as two fields described R1 and R2 in left upper corner of LCD screen.


Inputs 1, 4 or 8: current: 0-20 mA or 4-20 mA; voltage: 0-5 V, 1-5V, 0-10V or 2-10V; RTD: Pt100, Pt500, Pt1000; thermocouple: K, S, J, T, N, R, B, E type
Outputs 2 relays (R1, R2), Imax=1A, Umax=30VDC/250VAC (cosø=1)
Case material ABS (case), polycarbonate (front panel)
Power supply 19V ÷ 50V DC; 16V ÷ 35V AC lub 85 ÷ 260V AC/DC
Power consumption typical 3 VA; max. 5 VA
Protection class IP 65
Display graphic LCD, 128 x 64 points, with backlight (amber or white)
Operating temperature 0°C ÷ +50°C (standard), -20°C ÷ +50°C (option)
Measurement range current/voltage: ± 9999 + decimal point, resolution > 1mV RTD: -100.0°C ÷ +600.0°C with resolution 0,1°C; -148°F ÷ +999,9°F with resolution 0,1°F TC: -200°C ÷ +1370°C (K); -50°C ÷ +1768°C (S); -210°C ÷ +1200°C (J); -200°C ÷ +400°C (T); -200°C ÷ +1300°C (N); -50°C ÷ +1768°C (R); +250°C ÷ +1820°C (B); -200°C ÷ +1000°C (E); 0-80 mV or 0-120 mV
Digital input 1 x 24V DC, optocoupled
Communication interface RS-485 (Modbus RTU), galvanically separated, transmission speed: 1200 – 115200 bit/sec. and USB Host port
Additional supply 24 V DC -10%/+5%, max. 200 mA (only current version), not separated from measuring inputs
Data recording period 1 s / 2 s / 5 s / 10 s / 15 s / 20 s / 30 s / 1 min / 2 min / 5 min / 10 min / 15 min / 20 min / 30 min / 60 min
Storage temperature -10°C ÷ +70°C or -20°C ÷ +70°C (depending on operating temperature)
Data memory 8 MB internal (above 2 million data recordings)
Case dimensions 166 x 161 x 103 mm (without glands)
Case wall mounted
Glands 1 channel: 2 x M20 (multi hole inserts 2 x 5 mm), 1 x M16; 4 channels: 2 x M20 (multi hole inserts 2 x 5 mm), 1 x M16; 8 channels: 2 x M25 (multi hole inserts 4 x 5 mm), 1 x M20 (multi hole inserts 2 x 5 mm), 1 x M16


Simex SRD-N16 MultiLog Series Paperless Recorder-DpstarGroup