MODEL: RZUS-U9

RZUS-U9 SPECIFICATIONS

ES-7622 Rev.10 Page 2/10

http://www.m-system.co.jp/

available

Line noise filter: NMNR ratio to the line frequency and its

harmonic contents can be optimized. Factory set to 50/60

Hz mode for use with both frequencies. Select either

frequency for the most effective result.

Programmable first order lag filter: Time constant selectable

with PC Configurator Software.

The use of this filter is disabled at the factory shipment.

With the large time constant setting, measured signals

during the warm-up immediately after the power is turned

on may affect the signals for a long time period.

A/D conversion mode: Fast, Medium or Slow selectable with

PC Configurator Software.

With Slow setting, data fluctuations are minimized with

limited sampling time (speed).

With Fast setting, sampling time (speed) can be high though

data fluctuations increase.

Node address setting: Rotary switch; 1 – F (15 nodes)

Indicator LEDs: Five (5) LEDs indicate the module’s

operating conditions.

Service channel numbers: 12 channels (ch.1 thr. 12) or 6

channels (ch.1 thr. 6) are selectable with PC Configurator

Software. Factory set to 12 channels.

COMMUNICATION

Baud rate: 38.4 kbps

Communication: Half-duplex, asynchronous, no procedure

Protocol: Modbus RTU

■ RS-485

Standard: Conforms to TIA/EIA-485-A

Transmission distance: 10 meters max.

Transmission media: Shielded twisted-pair cable (CPEV-S

0.9 dia.)

■ USB

Standard: Full Speed USB 2.0 (usable with USB 1.1 port)

Transmission distance: 5 meters max.

Transfer mode: Bulk transfer

Power supply: Bus powered (high power device)

INPUT SPECIFICATIONS

■ DC Voltage

Input resistance: 900 kΩ min.

Excluding the case in which, with range setting other than

±12 V, ±6 V or ±3 V, a voltage exceeding ±1.3 V is applied.

Input range: ±60 mV, ±125 mV, ±250 mV, ±500 mV,

±1000 mV, ±3 V, ±6 V, ±12 V

■ Thermocouple

Input resistance: 900 kΩ minimum

Input type: (PR), K (CA), E (CRC), J (IC), T (CC), B (RH), R, S,

C (WRe 5-26), N, U, L, P (Platinel II)

Burnout sensing

Upscale: ≤ 130 nA

Downscale: ≤ 220 nA

No burnout: ≤ 10 nA

Burnout sensing time

K, E, J, N, L, P (upscale): ≤ 20 seconds

Others: ≤ 10 seconds

■ RTD (3-wire)

Excitation: 1.25 V / (1.25 kΩ + load resistance across the

terminals A – C); 1.00 mA with 10 Ω across A – C;

0.55 mA with 1000 Ω across A – C

Allowable leadwire resistance: 20 Ω per wire

Input type: Pt 100 (JIS ’89), Pt 100 (JIS ’97, IEC), Pt 200,

Pt 300, Pt 400, Pt 500, Pt 1000, Pt 50Ω (JIS ’81),

JPt 100 (JIS ’89), Ni 100, Ni 120, Ni 508.4Ω, Ni-Fe 604,

Cu 10 @ 25°C

Burnout sensing

Upscale or Downscale: ≤ 130 nA

No burnout: ≤ 10 nA

Burnout sensing time: ≤ 10 seconds

■ Potentiometer

Excitation: 1.25 V / (1.31 kΩ + load resistance across the

terminals A – C); 0.83 mA with 200 Ω across A – C; 0.20 mA

with 5 kΩ across A – C

Allowable leadwire resistance: 20 Ω per wire

Total resistance: See Potentiometer Input Table of the

"Input type, Range, Accuracy & Temperature Coefficient"

section.

■ Trigger Input: Dry contact; detected ON at ≤ 0.8 V

Voltage across the terminals: ≤ 2.5 V

Current across the terminals: ≤ 4.0 mA

■ SAMPLING TIME

LINE NOISE

SERVICE

A/D CONVERSION (Sec.)

FILTER FREQ.

CH. NO.

MEDIUM

SLOW

FAST

50 Hz

12 ch

0.68

0.94

0.43

6 ch

0.38

0.53

0.26

50/60 Hz

12 ch

0.63

0.87

0.40

6 ch

0.35

0.49

0.24

60 Hz

12 ch

0.59

0.80

0.38

6 ch

0.33

0.45

0.22

Multplied by two (2) for RTD and potentiometer input.

OUTPUT SPECIFICATIONS

■ Alarm Output: Photo MOSFET relay (no polarity);

≤ 50 Ω at ON, ≥ 1 MΩ at OFF; OFF when not powered

Peak load voltage: 50 V max.

Continuous load current: 50 mA max.

Peak load current: 300 mA max. (≤ 0.1 sec.)