MODEL: R1MS-GH3

R1MS-GH3 SPECIFICATIONS

ES-5671 Rev.12 Page 2/8

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

INPUT SPECIFICATIONS

Input: Thermocouple or DC input within ±10 V, 8 points

• Input resistance

Thermocouple: ≥ 1 MΩ when powered;

≥ 200 kΩ when not powered

DC: ≥ 800 kΩ when powered;

≥ 700 kΩ when not powered

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

Sampling rate: 50 millisec./8 points

• Trigger input: Dry contact; ON detected at ≤ 1.5 V

Sensing: Approx. 3 V DC @ 0.8 mA

• Burnout detecting: ≤ 45 nA for upscale or downscale;

≤ 5 nA with no burnout (when measuring 0°C)

Burnout response: ≤ 10 seconds

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.)

INSTALLATION

Power consumption

•AC: Approx. 9 VA

•DC: Approx. 3.5 W

Operating temperature: -5 to +60°C (23 to 140°F)

Operating humidity: 30 to 90 %RH (non-condensing)

Mounting: Surface or DIN rail

Weight: 450 g (0.99 lb)

PERFORMANCE (% of measuring range)

Accuracy

DC input: ±0.05 % (±10 mV)

Thermocouple input: See the table below.

Cold junction compensation error: (°C)

≤ ±(1.0 + [Ambient Temp. – 20] × 0.04) in stable ambient

temperature (e.g. ±1.4°C at 10°C and 30°C)

Sudden ambient temperature change affects the cold

junction compensation. Be sure to place the R1MS in stable

ambient.

Temp. coefficient: ≤ (Accuracy / 4) / °C

(e.g. DC: ±0.0125 %/°C or ±2.5 mV/°C,

TC: ±12.5 μV/°C, ±0.2°C/°C with type E)

Response time: Approx. 0.55 sec. (0 – 90 %)

Insulation resistance: ≥ 100 MΩ with 500 V DC

Dielectric strength: 1500 V AC @ 1 minute

(input 1 to input 2 to input 3 to input 4 to input 5 to input 6

to input 7 to input 8 to trigger input to alarm output to RS-

232-C or RS-485 or configurator jack)

2000 V AC @ 1 minute (input or alarm output or RS-232-C or

RS-485 or configurator jack to power to FG)

Normal mode noise rejection: ≥ 85 dB (50/60 Hz) with the

filtering set to a specific frequency; ≥ 35 dB with 50/60 Hz

setting

Common mode noise rejection: ≥ 120 dB (50/60 Hz)

T/C

USABLE

CONFORMANCE ACCURACY

RANGE (°C)

RANGE (°C)

(°C)

(PR)

0 to 1770

400 to 1770

±4.6

K (CA)

-270 to +1370

0 to 1370

±1.5

E (CRC)

-270 to +1000

0 to 1000

±0.8

J (IC)

-210 to +1200

0 to 1200

±1.0

T (CC)

-270 to +400

0 to 400

±1.3

B (RH)

100 to 1820

700 to 1820

±7.2

R

-50 to +1760

400 to 1760

±4.8

S

-50 to +1760

400 to 1760

±5.3

C (WRe 5-26)

0 to 2320

0 to 2320

±4.9

N

-270 to +1300

0 to 1300

±1.9

U

-200 to +600

0 to 600

±1.3

L

-200 to +900

0 to 900

±1.0

P (Platinel II)

0 to 1395

0 to 1395

±1.7

T/C

USABLE

CONFORMANCE ACCURACY

RANGE (°F)

RANGE (°F)

(°F)

(PR)

32 to 3218

752 to 3218

±8.28

K (CA)

-454 to +2498

32 to 2498

±2.7

E (CRC)

-454 to +1832

32 to 1832

±1.44

J (IC)

-346 to +2192

32 to 2192

±1.8

T (CC)

-454 to +752

32 to 752

±2.34

B (RH)

212 to 3308

1292 to 3308

±13.0

R

-58 to +3200

752 to 3200

±8.64

S

-58 to +3200

752 to 3200

±9.54

C (WRe 5-26)

32 to 4208

32 to 4208

±8.82

N

-454 to +2372

32 to 2372

±3.42

U

-328 to +1112

32 to 1112

±2.34

L

-328 to +1652

32 to 1652

±1.8

P (Platinel II)

32 to 2543

32 to 2543

±3.06

Note 1: Measuring accuracy at 50µV emf.

Note 2: CJC error is not included.

Accuracy (T/C)