MODEL: 71VR1

71VR1 SPECIFICATIONS

ES-7403 Rev.17 Page 2/7

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

GENERAL SPECIFICATIONS

Construction: 96-mm square (1/4 DIN size) panel flush

mounted

Degree of protection: IP65; applicable to the front panel of

the recorder with single mounting according to the specified

panel cutout

Connection: M3 separable screw terminal (torque 0.5 N·m)

Screw terminal: Nickel-plated steel

Housing material: Flame-resistant resin (black)

Isolation: Analog input each other to contact input to

contact output 1 to contact output 2 to Modbus interface to

power to FE (Functional Earth)

Number of assignable logical channels

Analog input: 8 points max.

Contact input: 8 points max.

Contact output: 8 points max.

Data storage: Stores Trend and Alarm history in memory

card.

Trend: Stored in files named time and date.

60000 samples in one file

Storage capacity: 200 files max.

Storage time:

Approx. 13 days at storing rate 0.1 sec.,

approx. 138 days at 1 sec.,

approx. 1388 days at 10 sec.,

approx. 8333 days at 1min.,

approx. 250000 days at 30 min.,

approx. 500000 days at 1 hour.

Alarm history: Stored in alarm history file, 200 items max.

■ DISPLAY

Display device: 3.5-inch TFT LCD

Display colors: 256

Resolution: 320 × 240 pixels

Backlight: LED

Display update interval: 500 msec.

[Legend] Y: Selectable, ---: Not selectable

*Selectable when without thermal input settings

Sample rate:

SAMPLE RATE (sec.)

0

1 to 2

3 to 5

6 to 10

11 to 20

21 to 24

0

1 to 2

3 to 5

6 to 10

11 to 20

21 to 24

Y* Y*

Y*

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

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---

---

---

---

---

---

---

---

---

---

---

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0.1 0.2 0.5

1

2

5

10

20

30

SAMPLE RATE (min.)

SAMPLE RATE (hour)

1

5

10

20

30

1

NUMBER OF MODBUS

LOGICAL CHANNELS

NUMBER OF MODBUS

LOGICAL CHANNELS

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

20 sec. or longer sampling rate is available with firmware of major version 1,

minor version 4.01 or higher.

INPUT SPECIFICATIONS

■ Universal Input (Ai3, Ai4, Ai5)

• DC current input

(Range: Input resistance)

-20 – +20 mA: 50 Ω (separately provided REM2)

• DC voltage input

(Range: Input resistance)

-1 – +1 V: ≥ 1 MΩ

-5 – +5 V: ≥ 1 MΩ

-10 – +10 V: ≥ 1 MΩ

• Thermocouple input: K, E, J, T, B, R, S, C, N, U, L, P, PR

(See Table 1.)

Input resistance: ≥ 30 kΩ

Burnout sensing: ≤ 0.1 μA

Burnout indication: Maximum value (upscale burnout)

of the usable range

• RTD input: Pt 100 (JIS ’97, IEC), Pt 100 (JIS ’89), JPt 100 (JIS

’89), Pt 50Ω (JIS ’81), Ni 100, Cu 10, Cu 50 (See Table 2.)

Input resistance: ≥ 1 MΩ

Maximum leadwire resistance: 100 Ω per wire

Burnout indication: Maximum value (upscale burnout) of the

usable range

Sensing current: ≤ 1 mA

■ DC Current Input (Ai1, Ai2)

(Range: Input resistance)

-20 – +20 mA: 100 Ω (incorporated)

■ DC Voltage Input (Ai1, Ai2)

(Range: Input resistance)

-1 – +1V: ≥ 1MΩ

-5 – +5V: ≥ 1MΩ

-10 – +10V: ≥ 1MΩ

■ Contact Input (Di1, Di2): Dry contact, 2 points

Input resistance: Approx. 1.8 kΩ

Common: Negative

Sensing: 12 V DC

ON current/resistance: ≥ 1.5 mA, ≤ 1.5 kΩ

OFF current/resistance: ≤ 0.75 mA, ≥ 15 kΩ

[Table 1 (Thermocouple input)]

T/C

USABLE

RANGE (°C)

CONFORMANCE

RANGE (°C)

K (CA)

-272 to +1472

-150 to +1370

E (CRC)

-272 to +1100

-170 to +1000

J (IC)

-260 to +1300

-180 to +1200

T (CC)

-272 to

+500

-170 to +400

B (RH)

24 to

1920

1000 to 1760

R

-100 to +1860

380 to 1760

S

-100 to +1860

400 to 1760

C (WRe 5-26)

-52 to +2416

100 to 2315

N

-272 to +1400

-130 to +1300

U

-252 to

+700

-200 to +600

L

-252 to +1000

-200 to +900

P (Platinel II)

-52 to +1496

0 to 1395

(PR)

-52 to +1860

300 to 1760

Overrange input (out of the usable range) is handled as burnout.