MODEL: M1EXT-2

M1EXT-2 SPECIFICATIONS

ES-5985 Rev.2 Page 2/9

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

to power

Overrange output: Approx. -10 to +110 % (Not available for

current output not greater than 0 mA)

Input zero fine adj. range: -10 to +10℃ (front button)

Input span fine adj. range: -10 to +10℃ (front button)

Output zero fine adj. range: -5 to +5% (front button)

Output span fine adj. range: 95 to 105% (front button)

Burnout protection: Upscale standard; downscale or no

burnout optional by programming

(Set to "None" at item [74] Burnout, when the unit is

connected with another instrument in parallel.)

Cold junction compensation: CJC sensor attached to the

input terminals

Configuration: Program with front buttons or Via PC.

Programmable features include: Refer to the parameter list.

Configurator connection: 2.5 dia. miniature jack;

RS-232-C level

■Recommended solderless terminal size - M3 (unit: mm)

12max

3max

4min

3.2 dia.

(mm)

DISPLAY

Display functions: Displays and sets measured range,

engineering unit

Display size: Approx. 15.6 × 20.8 mm (0.61” × 0.82”)

Number of pixels: 68 × 95 (horizontal × vertical)

Character color: Yellow

Display life: Approx. 50000 hours

(Expected time for the Display brightness to be reduced to

50 % when the Display is used continuously with brightness

setting 2 in 25 ℃)

Display type: OEL display

Display digit: Negative 5 digits, positive 6 digits (-99999 to

999999)

Decimal point position: None, number of decimal places 1 or

2

INPUT SPECIFICATIONS

Input resistance: 1 MΩ min.

Burnout sensing: ≤ 0.2 μA

Measurement rang: -5 to +105% of input setting value

Refer to the operating manual (EM-5985-B) for changing

input range, setting value.

OUTPUT SPECIFICATIONS

■ DC Current

Output range: 0 – 20 mA DC

Conformance range: 0 – 22mA DC

Minimum span: 1 mA

Load resistance: Output drive 15 V max.

(e.g. 4 – 20 mA: 750 Ω [15 V ÷ 20 mA])

(Not available to output less than 0 mA, output range may

not be extended to -5 %)

■ DC Voltage

Output range: -5 - +5 V DC, -10 - +10 V DC

Conformance range: -6 - +6 V DC, -12 - +12 V DC

Minimum span: 250 mV, 1 V

Load resistance: 200 kΩ min.

INSTALLATION

Power Consumption

•AC:

≤ 7 VA at 100 V

≤ 10 VA at 200 V

≤ 12 VA at 264 V

•DC: ≤ 4 W

Operating temperature: -5 to +55°C (23 to 131°F)

Storage temperature: -5 to +55°C (23 to 131°F)

Operating humidity: 10 to 85 %RH (non-condensing)

Mounting: Surface or DIN rail

Weight: 120 g (0.26 lb) except base

PERFORMANCE

Accuracy: Input accuracy + output accuracy

See CALCULATION EXAMPLES OF OVERALL ACCURACY.

Inversely proportional to the setting span.

Input accuracy: [Table 1 Accuracy value + Cold Junction

Compensation Error 0.5°C (0.9°F)]

Display accuracy:

Input display: Input accuracy ±1 digit

Output display: Input accuracy + output accuracy ±1 digit

Output accuracy: (% of max. output range)

0 - 20 mA: ±0.06 %

-5 - +5 V: ±0.03 %

-10 - +10 V: ±0.03 %

Cold junction compensation error:

±0.5°C at 25 ±10°C

±0.9°F at 77 ±18°F

(The described accuracy may be partially not

satisfied when the input temperature is below 0°C. Consult

factory.)

Temp. coefficient (% of max. I/O range): ±0.015 %/°C

(±0.008 %/°F)

Response time (filter time constant: 0 sec.): ≤ 0.5 sec.

(0 – 90 %)