MODEL: ALT

ALT SPECIFICATIONS

ES-2711 Rev.9 Page 2/4

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

Screw terminal: Chromated steel (standard) or stainless

steel

Housing material: Flame-resistant resin (black)

Isolation: Input to output 1 to output 2 to power

Setpoint adjustments: 10-position rotary switches (front); 0

– 99 % independently; 1 % increments

Linearization: Standard

Cold junction compensation: CJC sensor attached to the

input terminals

Hysteresis (deadband): 0.7 – 2.5 %

Front LEDs: Red LED turns on when the coil is energized.

Power ON timer: Relays de-energized for approx. 2 seconds

after power is turned on.

INPUT SPECIFICATIONS

Minimum span: 3 mV

Offset: Max. 1.5 times span

Input resistance: 30 kΩ min.

Burnout sensing: 0.1 μA

Minimum span (in °C)

(PR): min. span 370°C

K (CA): min. span 75°C

E (CRC): min. span 50°C

J (IC): min. span 60°C

T (CC): min. span 75°C

B (RH): min. span 780°C

R: min. span 360°C

S: min. span 380°C

N: min. span 110°C

Minimum span (in °F)

(PR): min. span 670°F

K (CA): min. span 140°F

E (CRC): min. span 90°F

J (IC): min. span 110°F

T (CC): min. span 140°F

B (RH): min. span 1410°F

R: min. span 650°F

S: min. span 690°F

N: min. span 200°F

Note: The described accuracy may be partially not satisfied

when the temperature ranges below 0°C. Consult factory.

OUTPUT SPECIFICATIONS

■ Relay Contact: 100 V AC @ 1 A (cos ø = 1)

120 V AC @ 1 A (cos ø = 1)

240 V AC @ 0.5 A (cos ø = 1)

30 V DC @ 1 A (resistive load)

Maximum switching voltage: 380 V AC or 125 V DC

Maximum switching power: 120 VA or 30 W

Minimum load: 5 V DC @ 10 mA

For maximum relay life with inductive loads, external

protection is recommended.

Output Code: 1 & 4: Terminals 1 – 2, 9 – 10 turn ON

Trip Operation in Power Failure

•

• Output Code: 2 & 3: Terminals 1 – 3, 9 – 11 turn ON

0

50

100

▲

Input

(%)

Output 2

Setpoint

▲

Output 1

Setpoint

Output 1

(9-10)ON

Output 2

(1-2)ON

(1-3)ON

(9-11)ON

INSTALLATION

Power input

• AC: Operational voltage range: rating ±10 %,

50/60 ±2 Hz, approx. 2 VA

• DC: Operational voltage range: rating ±10 %, or 85 – 150

V for 110 V rating (ripple 10 % p-p max.)

approx. 2 W (80 mA at 24 V)

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

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

Mounting: Surface or DIN rail

Weight: 370 g (0.82 lb)

PERFORMANCE in percentage of span

Setpoint accuracy: ±0.8 % (at over 400°C or 750°F for R, S

and PR; over 770°C or 1420°F for B)

Trip point repeatability: ±0.05 %

(at over 400°C or 750°F for R, S and PR; over 770°C or

1420°F for B)

Cold junction compensation error

(at 20°C ±10°C or 68°F ±18°F)

K, E, J, T & N: ±0.5°C or ±0.9°F

S, R & PR: ±1°C or ±1.8°F

Temp. coefficient: ±0.015 %/°C (±0.008 %/°F)

(at over 400°C or 750°F for R, S and PR; over 770°C or

1420°F for B)

Response time: Approx. 0.5 sec. (0 – 100 % at 90 %

setpoint)

Burnout response: ≤ 10 sec.

Line voltage effect: ±0.1 % over voltage range

Insulation resistance: ≥ 100 MΩ with 500 V DC

Dielectric strength: 2000 V AC @1 minute (input to output 1

to output 2 to power to ground)